diff options
Diffstat (limited to 'drivers')
32 files changed, 3987 insertions, 271 deletions
diff --git a/drivers/block/ata_piix.c b/drivers/block/ata_piix.c index 1e33a66c45..fcae448508 100644 --- a/drivers/block/ata_piix.c +++ b/drivers/block/ata_piix.c @@ -406,6 +406,7 @@ void sata_identify(int num, int dev) /* assuming HD */ sata_dev_desc[devno].type = DEV_TYPE_HARDDISK; sata_dev_desc[devno].blksz = ATA_BLOCKSIZE; + sata_dev_desc[devno].log2blksz = LOG2(sata_dev_desc[devno].blksz); sata_dev_desc[devno].lun = 0; /* just to fill something in... */ } diff --git a/drivers/block/pata_bfin.c b/drivers/block/pata_bfin.c index b847dd91e7..27ecaf4f9e 100644 --- a/drivers/block/pata_bfin.c +++ b/drivers/block/pata_bfin.c @@ -897,6 +897,8 @@ static void bfin_ata_identify(struct ata_port *ap, int dev) /* assuming HD */ sata_dev_desc[ap->port_no].type = DEV_TYPE_HARDDISK; sata_dev_desc[ap->port_no].blksz = ATA_SECT_SIZE; + sata_dev_desc[ap->port_no].log2blksz = + LOG2(sata_dev_desc[ap->port_no].blksz); sata_dev_desc[ap->port_no].lun = 0; /* just to fill something in... */ printf("PATA device#%d %s is found on ata port#%d.\n", diff --git a/drivers/block/systemace.c b/drivers/block/systemace.c index bf29cbbb7a..b08715f7c4 100644 --- a/drivers/block/systemace.c +++ b/drivers/block/systemace.c @@ -127,6 +127,7 @@ block_dev_desc_t *systemace_get_dev(int dev) systemace_dev.part_type = PART_TYPE_UNKNOWN; systemace_dev.type = DEV_TYPE_HARDDISK; systemace_dev.blksz = 512; + systemace_dev.log2blksz = LOG2(systemace_dev.blksz); systemace_dev.removable = 1; systemace_dev.block_read = systemace_read; diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile index b48f623c18..0b51dcdef3 100644 --- a/drivers/fpga/Makefile +++ b/drivers/fpga/Makefile @@ -30,6 +30,7 @@ COBJS-y += fpga.o COBJS-$(CONFIG_FPGA_SPARTAN2) += spartan2.o COBJS-$(CONFIG_FPGA_SPARTAN3) += spartan3.o COBJS-$(CONFIG_FPGA_VIRTEX2) += virtex2.o +COBJS-$(CONFIG_FPGA_ZYNQPL) += zynqpl.o COBJS-$(CONFIG_FPGA_XILINX) += xilinx.o COBJS-$(CONFIG_FPGA_LATTICE) += ivm_core.o lattice.o ifdef CONFIG_FPGA_ALTERA diff --git a/drivers/fpga/fpga.c b/drivers/fpga/fpga.c index 26d244354c..f70bff6ed1 100644 --- a/drivers/fpga/fpga.c +++ b/drivers/fpga/fpga.c @@ -22,122 +22,99 @@ * */ -/* - * Generic FPGA support - */ +/* Generic FPGA support */ #include <common.h> /* core U-Boot definitions */ #include <xilinx.h> /* xilinx specific definitions */ #include <altera.h> /* altera specific definitions */ #include <lattice.h> -#if 0 -#define FPGA_DEBUG /* define FPGA_DEBUG to get debug messages */ -#endif - /* Local definitions */ #ifndef CONFIG_MAX_FPGA_DEVICES #define CONFIG_MAX_FPGA_DEVICES 5 #endif -/* Enable/Disable debug console messages */ -#ifdef FPGA_DEBUG -#define PRINTF(fmt,args...) printf (fmt ,##args) -#else -#define PRINTF(fmt,args...) -#endif - /* Local static data */ static int next_desc = FPGA_INVALID_DEVICE; static fpga_desc desc_table[CONFIG_MAX_FPGA_DEVICES]; -/* Local static functions */ -static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_get_desc( int devnum ); -static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_validate(int devnum, const void *buf, - size_t bsize, char *fn ); -static int fpga_dev_info( int devnum ); - - -/* ------------------------------------------------------------------------- */ - -/* fpga_no_sup +/* + * fpga_no_sup * 'no support' message function */ -static void fpga_no_sup( char *fn, char *msg ) +static void fpga_no_sup(char *fn, char *msg) { - if ( fn && msg ) { - printf( "%s: No support for %s.\n", fn, msg); - } else if ( msg ) { - printf( "No support for %s.\n", msg); - } else { - printf( "No FPGA suport!\n"); - } + if (fn && msg) + printf("%s: No support for %s.\n", fn, msg); + else if (msg) + printf("No support for %s.\n", msg); + else + printf("No FPGA suport!\n"); } /* fpga_get_desc * map a device number to a descriptor */ -static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_get_desc( int devnum ) +static const fpga_desc *const fpga_get_desc(int devnum) { - fpga_desc *desc = (fpga_desc * )NULL; + fpga_desc *desc = (fpga_desc *)NULL; - if (( devnum >= 0 ) && (devnum < next_desc )) { + if ((devnum >= 0) && (devnum < next_desc)) { desc = &desc_table[devnum]; - PRINTF( "%s: found fpga descriptor #%d @ 0x%p\n", - __FUNCTION__, devnum, desc ); + debug("%s: found fpga descriptor #%d @ 0x%p\n", + __func__, devnum, desc); } return desc; } - -/* fpga_validate +/* + * fpga_validate * generic parameter checking code */ -static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_validate(int devnum, const void *buf, - size_t bsize, char *fn ) +const fpga_desc *const fpga_validate(int devnum, const void *buf, + size_t bsize, char *fn) { - fpga_desc * desc = fpga_get_desc( devnum ); + const fpga_desc *desc = fpga_get_desc(devnum); - if ( !desc ) { - printf( "%s: Invalid device number %d\n", fn, devnum ); - } + if (!desc) + printf("%s: Invalid device number %d\n", fn, devnum); - if ( !buf ) { - printf( "%s: Null buffer.\n", fn ); + if (!buf) { + printf("%s: Null buffer.\n", fn); return (fpga_desc * const)NULL; } return desc; } - -/* fpga_dev_info +/* + * fpga_dev_info * generic multiplexing code */ -static int fpga_dev_info( int devnum ) +static int fpga_dev_info(int devnum) { - int ret_val = FPGA_FAIL; /* assume failure */ - const fpga_desc * const desc = fpga_get_desc( devnum ); + int ret_val = FPGA_FAIL; /* assume failure */ + const fpga_desc * const desc = fpga_get_desc(devnum); - if ( desc ) { - PRINTF( "%s: Device Descriptor @ 0x%p\n", - __FUNCTION__, desc->devdesc ); + if (desc) { + debug("%s: Device Descriptor @ 0x%p\n", + __func__, desc->devdesc); - switch ( desc->devtype ) { + switch (desc->devtype) { case fpga_xilinx: #if defined(CONFIG_FPGA_XILINX) - printf( "Xilinx Device\nDescriptor @ 0x%p\n", desc ); - ret_val = xilinx_info( desc->devdesc ); + printf("Xilinx Device\nDescriptor @ 0x%p\n", desc); + ret_val = xilinx_info(desc->devdesc); #else - fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" ); + fpga_no_sup((char *)__func__, "Xilinx devices"); #endif break; case fpga_altera: #if defined(CONFIG_FPGA_ALTERA) - printf( "Altera Device\nDescriptor @ 0x%p\n", desc ); - ret_val = altera_info( desc->devdesc ); + printf("Altera Device\nDescriptor @ 0x%p\n", desc); + ret_val = altera_info(desc->devdesc); #else - fpga_no_sup( (char *)__FUNCTION__, "Altera devices" ); + fpga_no_sup((char *)__func__, "Altera devices"); #endif break; case fpga_lattice: @@ -145,171 +122,183 @@ static int fpga_dev_info( int devnum ) printf("Lattice Device\nDescriptor @ 0x%p\n", desc); ret_val = lattice_info(desc->devdesc); #else - fpga_no_sup( (char *)__FUNCTION__, "Lattice devices" ); + fpga_no_sup((char *)__func__, "Lattice devices"); #endif break; default: - printf( "%s: Invalid or unsupported device type %d\n", - __FUNCTION__, desc->devtype ); + printf("%s: Invalid or unsupported device type %d\n", + __func__, desc->devtype); } } else { - printf( "%s: Invalid device number %d\n", - __FUNCTION__, devnum ); + printf("%s: Invalid device number %d\n", __func__, devnum); } return ret_val; } - -/* ------------------------------------------------------------------------- */ -/* fgpa_init is usually called from misc_init_r() and MUST be called +/* + * fgpa_init is usually called from misc_init_r() and MUST be called * before any of the other fpga functions are used. */ void fpga_init(void) { next_desc = 0; - memset( desc_table, 0, sizeof(desc_table)); + memset(desc_table, 0, sizeof(desc_table)); - PRINTF( "%s: CONFIG_FPGA = 0x%x\n", __FUNCTION__, CONFIG_FPGA ); + debug("%s\n", __func__); } -/* fpga_count +/* + * fpga_count * Basic interface function to get the current number of devices available. */ -int fpga_count( void ) +int fpga_count(void) { return next_desc; } -/* fpga_add +/* + * fpga_add * Add the device descriptor to the device table. */ -int fpga_add( fpga_type devtype, void *desc ) +int fpga_add(fpga_type devtype, void *desc) { int devnum = FPGA_INVALID_DEVICE; - if ( next_desc < 0 ) { - printf( "%s: FPGA support not initialized!\n", __FUNCTION__ ); - } else if (( devtype > fpga_min_type ) && ( devtype < fpga_undefined )) { - if ( desc ) { - if ( next_desc < CONFIG_MAX_FPGA_DEVICES ) { + if (next_desc < 0) { + printf("%s: FPGA support not initialized!\n", __func__); + } else if ((devtype > fpga_min_type) && (devtype < fpga_undefined)) { + if (desc) { + if (next_desc < CONFIG_MAX_FPGA_DEVICES) { devnum = next_desc; desc_table[next_desc].devtype = devtype; desc_table[next_desc++].devdesc = desc; } else { - printf( "%s: Exceeded Max FPGA device count\n", __FUNCTION__ ); + printf("%s: Exceeded Max FPGA device count\n", + __func__); } } else { - printf( "%s: NULL device descriptor\n", __FUNCTION__ ); + printf("%s: NULL device descriptor\n", __func__); } } else { - printf( "%s: Unsupported FPGA type %d\n", __FUNCTION__, devtype ); + printf("%s: Unsupported FPGA type %d\n", __func__, devtype); } return devnum; } /* - * Generic multiplexing code + * Convert bitstream data and load into the fpga + */ +int __weak fpga_loadbitstream(int devnum, char *fpgadata, size_t size) +{ + printf("Bitstream support not implemented for this FPGA device\n"); + return FPGA_FAIL; +} + +/* + * Generic multiplexing code */ int fpga_load(int devnum, const void *buf, size_t bsize) { int ret_val = FPGA_FAIL; /* assume failure */ - fpga_desc * desc = fpga_validate( devnum, buf, bsize, (char *)__FUNCTION__ ); + const fpga_desc *desc = fpga_validate(devnum, buf, bsize, + (char *)__func__); - if ( desc ) { - switch ( desc->devtype ) { + if (desc) { + switch (desc->devtype) { case fpga_xilinx: #if defined(CONFIG_FPGA_XILINX) - ret_val = xilinx_load( desc->devdesc, buf, bsize ); + ret_val = xilinx_load(desc->devdesc, buf, bsize); #else - fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" ); + fpga_no_sup((char *)__func__, "Xilinx devices"); #endif break; case fpga_altera: #if defined(CONFIG_FPGA_ALTERA) - ret_val = altera_load( desc->devdesc, buf, bsize ); + ret_val = altera_load(desc->devdesc, buf, bsize); #else - fpga_no_sup( (char *)__FUNCTION__, "Altera devices" ); + fpga_no_sup((char *)__func__, "Altera devices"); #endif break; case fpga_lattice: #if defined(CONFIG_FPGA_LATTICE) ret_val = lattice_load(desc->devdesc, buf, bsize); #else - fpga_no_sup( (char *)__FUNCTION__, "Lattice devices" ); + fpga_no_sup((char *)__func__, "Lattice devices"); #endif break; default: - printf( "%s: Invalid or unsupported device type %d\n", - __FUNCTION__, desc->devtype ); + printf("%s: Invalid or unsupported device type %d\n", + __func__, desc->devtype); } } return ret_val; } -/* fpga_dump +/* + * fpga_dump * generic multiplexing code */ int fpga_dump(int devnum, const void *buf, size_t bsize) { int ret_val = FPGA_FAIL; /* assume failure */ - fpga_desc * desc = fpga_validate( devnum, buf, bsize, (char *)__FUNCTION__ ); + const fpga_desc *desc = fpga_validate(devnum, buf, bsize, + (char *)__func__); - if ( desc ) { - switch ( desc->devtype ) { + if (desc) { + switch (desc->devtype) { case fpga_xilinx: #if defined(CONFIG_FPGA_XILINX) - ret_val = xilinx_dump( desc->devdesc, buf, bsize ); + ret_val = xilinx_dump(desc->devdesc, buf, bsize); #else - fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" ); + fpga_no_sup((char *)__func__, "Xilinx devices"); #endif break; case fpga_altera: #if defined(CONFIG_FPGA_ALTERA) - ret_val = altera_dump( desc->devdesc, buf, bsize ); + ret_val = altera_dump(desc->devdesc, buf, bsize); #else - fpga_no_sup( (char *)__FUNCTION__, "Altera devices" ); + fpga_no_sup((char *)__func__, "Altera devices"); #endif break; case fpga_lattice: #if defined(CONFIG_FPGA_LATTICE) ret_val = lattice_dump(desc->devdesc, buf, bsize); #else - fpga_no_sup( (char *)__FUNCTION__, "Lattice devices" ); + fpga_no_sup((char *)__func__, "Lattice devices"); #endif break; default: - printf( "%s: Invalid or unsupported device type %d\n", - __FUNCTION__, desc->devtype ); + printf("%s: Invalid or unsupported device type %d\n", + __func__, desc->devtype); } } return ret_val; } - -/* fpga_info +/* + * fpga_info * front end to fpga_dev_info. If devnum is invalid, report on all * available devices. */ -int fpga_info( int devnum ) +int fpga_info(int devnum) { - if ( devnum == FPGA_INVALID_DEVICE ) { - if ( next_desc > 0 ) { + if (devnum == FPGA_INVALID_DEVICE) { + if (next_desc > 0) { int dev; - for ( dev = 0; dev < next_desc; dev++ ) { - fpga_dev_info( dev ); - } + for (dev = 0; dev < next_desc; dev++) + fpga_dev_info(dev); + return FPGA_SUCCESS; } else { - printf( "%s: No FPGA devices available.\n", __FUNCTION__ ); + printf("%s: No FPGA devices available.\n", __func__); return FPGA_FAIL; } } - else return fpga_dev_info( devnum ); -} -/* ------------------------------------------------------------------------- */ + return fpga_dev_info(devnum); +} diff --git a/drivers/fpga/xilinx.c b/drivers/fpga/xilinx.c index 32787b2366..49e943718e 100644 --- a/drivers/fpga/xilinx.c +++ b/drivers/fpga/xilinx.c @@ -1,4 +1,6 @@ /* + * (C) Copyright 2012-2013, Xilinx, Michal Simek + * * (C) Copyright 2002 * Rich Ireland, Enterasys Networks, rireland@enterasys.com. * Keith Outwater, keith_outwater@mvis.com @@ -28,9 +30,11 @@ */ #include <common.h> +#include <fpga.h> #include <virtex2.h> #include <spartan2.h> #include <spartan3.h> +#include <zynqpl.h> #if 0 #define FPGA_DEBUG @@ -48,6 +52,112 @@ static int xilinx_validate (Xilinx_desc * desc, char *fn); /* ------------------------------------------------------------------------- */ +int fpga_loadbitstream(int devnum, char *fpgadata, size_t size) +{ + unsigned int length; + unsigned int swapsize; + char buffer[80]; + unsigned char *dataptr; + unsigned int i; + const fpga_desc *desc; + Xilinx_desc *xdesc; + + dataptr = (unsigned char *)fpgadata; + /* Find out fpga_description */ + desc = fpga_validate(devnum, dataptr, 0, (char *)__func__); + /* Assign xilinx device description */ + xdesc = desc->devdesc; + + /* skip the first bytes of the bitsteam, their meaning is unknown */ + length = (*dataptr << 8) + *(dataptr + 1); + dataptr += 2; + dataptr += length; + + /* get design name (identifier, length, string) */ + length = (*dataptr << 8) + *(dataptr + 1); + dataptr += 2; + if (*dataptr++ != 0x61) { + debug("%s: Design name id not recognized in bitstream\n", + __func__); + return FPGA_FAIL; + } + + length = (*dataptr << 8) + *(dataptr + 1); + dataptr += 2; + for (i = 0; i < length; i++) + buffer[i] = *dataptr++; + + printf(" design filename = \"%s\"\n", buffer); + + /* get part number (identifier, length, string) */ + if (*dataptr++ != 0x62) { + printf("%s: Part number id not recognized in bitstream\n", + __func__); + return FPGA_FAIL; + } + + length = (*dataptr << 8) + *(dataptr + 1); + dataptr += 2; + for (i = 0; i < length; i++) + buffer[i] = *dataptr++; + + if (xdesc->name) { + i = strncmp(buffer, xdesc->name, strlen(xdesc->name)); + if (i) { + printf("%s: Wrong bitstream ID for this device\n", + __func__); + printf("%s: Bitstream ID %s, current device ID %d/%s\n", + __func__, buffer, devnum, xdesc->name); + return FPGA_FAIL; + } + } else { + printf("%s: Please fill correct device ID to Xilinx_desc\n", + __func__); + } + printf(" part number = \"%s\"\n", buffer); + + /* get date (identifier, length, string) */ + if (*dataptr++ != 0x63) { + printf("%s: Date identifier not recognized in bitstream\n", + __func__); + return FPGA_FAIL; + } + + length = (*dataptr << 8) + *(dataptr+1); + dataptr += 2; + for (i = 0; i < length; i++) + buffer[i] = *dataptr++; + printf(" date = \"%s\"\n", buffer); + + /* get time (identifier, length, string) */ + if (*dataptr++ != 0x64) { + printf("%s: Time identifier not recognized in bitstream\n", + __func__); + return FPGA_FAIL; + } + + length = (*dataptr << 8) + *(dataptr+1); + dataptr += 2; + for (i = 0; i < length; i++) + buffer[i] = *dataptr++; + printf(" time = \"%s\"\n", buffer); + + /* get fpga data length (identifier, length) */ + if (*dataptr++ != 0x65) { + printf("%s: Data length id not recognized in bitstream\n", + __func__); + return FPGA_FAIL; + } + swapsize = ((unsigned int) *dataptr << 24) + + ((unsigned int) *(dataptr + 1) << 16) + + ((unsigned int) *(dataptr + 2) << 8) + + ((unsigned int) *(dataptr + 3)); + dataptr += 4; + printf(" bytes in bitstream = %d\n", swapsize); + + return fpga_load(devnum, dataptr, swapsize); +} + int xilinx_load(Xilinx_desc *desc, const void *buf, size_t bsize) { int ret_val = FPGA_FAIL; /* assume a failure */ @@ -86,6 +196,16 @@ int xilinx_load(Xilinx_desc *desc, const void *buf, size_t bsize) __FUNCTION__); #endif break; + case xilinx_zynq: +#if defined(CONFIG_FPGA_ZYNQPL) + PRINTF("%s: Launching the Zynq PL Loader...\n", + __func__); + ret_val = zynq_load(desc, buf, bsize); +#else + printf("%s: No support for Zynq devices.\n", + __func__); +#endif + break; default: printf ("%s: Unsupported family type, %d\n", @@ -133,6 +253,16 @@ int xilinx_dump(Xilinx_desc *desc, const void *buf, size_t bsize) __FUNCTION__); #endif break; + case xilinx_zynq: +#if defined(CONFIG_FPGA_ZYNQPL) + PRINTF("%s: Launching the Zynq PL Reader...\n", + __func__); + ret_val = zynq_dump(desc, buf, bsize); +#else + printf("%s: No support for Zynq devices.\n", + __func__); +#endif + break; default: printf ("%s: Unsupported family type, %d\n", @@ -158,6 +288,9 @@ int xilinx_info (Xilinx_desc * desc) case Xilinx_Virtex2: printf ("Virtex-II\n"); break; + case xilinx_zynq: + printf("Zynq PL\n"); + break; /* Add new family types here */ default: printf ("Unknown family type, %d\n", desc->family); @@ -183,6 +316,9 @@ int xilinx_info (Xilinx_desc * desc) case master_selectmap: printf ("Master SelectMap Mode\n"); break; + case devcfg: + printf("Device configuration interface (Zynq)\n"); + break; /* Add new interface types here */ default: printf ("Unsupported interface type, %d\n", desc->iface); @@ -191,6 +327,8 @@ int xilinx_info (Xilinx_desc * desc) printf ("Device Size: \t%d bytes\n" "Cookie: \t0x%x (%d)\n", desc->size, desc->cookie, desc->cookie); + if (desc->name) + printf("Device name: \t%s\n", desc->name); if (desc->iface_fns) { printf ("Device Function Table @ 0x%p\n", desc->iface_fns); @@ -222,6 +360,14 @@ int xilinx_info (Xilinx_desc * desc) __FUNCTION__); #endif break; + case xilinx_zynq: +#if defined(CONFIG_FPGA_ZYNQPL) + zynq_info(desc); +#else + /* just in case */ + printf("%s: No support for Zynq devices.\n", + __func__); +#endif /* Add new family types here */ default: /* we don't need a message here - we give one up above */ diff --git a/drivers/fpga/zynqpl.c b/drivers/fpga/zynqpl.c new file mode 100644 index 0000000000..8feccdea48 --- /dev/null +++ b/drivers/fpga/zynqpl.c @@ -0,0 +1,355 @@ +/* + * (C) Copyright 2012-2013, Xilinx, Michal Simek + * + * (C) Copyright 2012 + * Joe Hershberger <joe.hershberger@ni.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/io.h> +#include <zynqpl.h> +#include <asm/arch/hardware.h> +#include <asm/arch/sys_proto.h> + +#define DEVCFG_CTRL_PCFG_PROG_B 0x40000000 +#define DEVCFG_ISR_FATAL_ERROR_MASK 0x00740040 +#define DEVCFG_ISR_ERROR_FLAGS_MASK 0x00340840 +#define DEVCFG_ISR_RX_FIFO_OV 0x00040000 +#define DEVCFG_ISR_DMA_DONE 0x00002000 +#define DEVCFG_ISR_PCFG_DONE 0x00000004 +#define DEVCFG_STATUS_DMA_CMD_Q_F 0x80000000 +#define DEVCFG_STATUS_DMA_CMD_Q_E 0x40000000 +#define DEVCFG_STATUS_DMA_DONE_CNT_MASK 0x30000000 +#define DEVCFG_STATUS_PCFG_INIT 0x00000010 +#define DEVCFG_MCTRL_RFIFO_FLUSH 0x00000002 +#define DEVCFG_MCTRL_WFIFO_FLUSH 0x00000001 + +#ifndef CONFIG_SYS_FPGA_WAIT +#define CONFIG_SYS_FPGA_WAIT CONFIG_SYS_HZ/100 /* 10 ms */ +#endif + +#ifndef CONFIG_SYS_FPGA_PROG_TIME +#define CONFIG_SYS_FPGA_PROG_TIME CONFIG_SYS_HZ /* 1 s */ +#endif + +int zynq_info(Xilinx_desc *desc) +{ + return FPGA_SUCCESS; +} + +#define DUMMY_WORD 0xffffffff + +/* Xilinx binary format header */ +static const u32 bin_format[] = { + DUMMY_WORD, /* Dummy words */ + DUMMY_WORD, + DUMMY_WORD, + DUMMY_WORD, + DUMMY_WORD, + DUMMY_WORD, + DUMMY_WORD, + DUMMY_WORD, + 0x000000bb, /* Sync word */ + 0x11220044, /* Sync word */ + DUMMY_WORD, + DUMMY_WORD, + 0xaa995566, /* Sync word */ +}; + +#define SWAP_NO 1 +#define SWAP_DONE 2 + +/* + * Load the whole word from unaligned buffer + * Keep in your mind that it is byte loading on little-endian system + */ +static u32 load_word(const void *buf, u32 swap) +{ + u32 word = 0; + u8 *bitc = (u8 *)buf; + int p; + + if (swap == SWAP_NO) { + for (p = 0; p < 4; p++) { + word <<= 8; + word |= bitc[p]; + } + } else { + for (p = 3; p >= 0; p--) { + word <<= 8; + word |= bitc[p]; + } + } + + return word; +} + +static u32 check_header(const void *buf) +{ + u32 i, pattern; + int swap = SWAP_NO; + u32 *test = (u32 *)buf; + + debug("%s: Let's check bitstream header\n", __func__); + + /* Checking that passing bin is not a bitstream */ + for (i = 0; i < ARRAY_SIZE(bin_format); i++) { + pattern = load_word(&test[i], swap); + + /* + * Bitstreams in binary format are swapped + * compare to regular bistream. + * Do not swap dummy word but if swap is done assume + * that parsing buffer is binary format + */ + if ((__swab32(pattern) != DUMMY_WORD) && + (__swab32(pattern) == bin_format[i])) { + pattern = __swab32(pattern); + swap = SWAP_DONE; + debug("%s: data swapped - let's swap\n", __func__); + } + + debug("%s: %d/%x: pattern %x/%x bin_format\n", __func__, i, + (u32)&test[i], pattern, bin_format[i]); + if (pattern != bin_format[i]) { + debug("%s: Bitstream is not recognized\n", __func__); + return 0; + } + } + debug("%s: Found bitstream header at %x %s swapinng\n", __func__, + (u32)buf, swap == SWAP_NO ? "without" : "with"); + + return swap; +} + +static void *check_data(u8 *buf, size_t bsize, u32 *swap) +{ + u32 word, p = 0; /* possition */ + + /* Because buf doesn't need to be aligned let's read it by chars */ + for (p = 0; p < bsize; p++) { + word = load_word(&buf[p], SWAP_NO); + debug("%s: word %x %x/%x\n", __func__, word, p, (u32)&buf[p]); + + /* Find the first bitstream dummy word */ + if (word == DUMMY_WORD) { + debug("%s: Found dummy word at position %x/%x\n", + __func__, p, (u32)&buf[p]); + *swap = check_header(&buf[p]); + if (*swap) { + /* FIXME add full bitstream checking here */ + return &buf[p]; + } + } + /* Loop can be huge - support CTRL + C */ + if (ctrlc()) + return 0; + } + return 0; +} + + +int zynq_load(Xilinx_desc *desc, const void *buf, size_t bsize) +{ + unsigned long ts; /* Timestamp */ + u32 partialbit = 0; + u32 i, control, isr_status, status, swap, diff; + u32 *buf_start; + + /* Detect if we are going working with partial or full bitstream */ + if (bsize != desc->size) { + printf("%s: Working with partial bitstream\n", __func__); + partialbit = 1; + } + + buf_start = check_data((u8 *)buf, bsize, &swap); + if (!buf_start) + return FPGA_FAIL; + + /* Check if data is postpone from start */ + diff = (u32)buf_start - (u32)buf; + if (diff) { + printf("%s: Bitstream is not validated yet (diff %x)\n", + __func__, diff); + return FPGA_FAIL; + } + + if ((u32)buf_start & 0x3) { + u32 *new_buf = (u32 *)((u32)buf & ~0x3); + + printf("%s: Align buffer at %x to %x(swap %d)\n", __func__, + (u32)buf_start, (u32)new_buf, swap); + + for (i = 0; i < (bsize/4); i++) + new_buf[i] = load_word(&buf_start[i], swap); + + swap = SWAP_DONE; + buf = new_buf; + } else if (swap != SWAP_DONE) { + /* For bitstream which are aligned */ + u32 *new_buf = (u32 *)buf; + + printf("%s: Bitstream is not swapped(%d) - swap it\n", __func__, + swap); + + for (i = 0; i < (bsize/4); i++) + new_buf[i] = load_word(&buf_start[i], swap); + + swap = SWAP_DONE; + } + + if (!partialbit) { + zynq_slcr_devcfg_disable(); + + /* Setting PCFG_PROG_B signal to high */ + control = readl(&devcfg_base->ctrl); + writel(control | DEVCFG_CTRL_PCFG_PROG_B, &devcfg_base->ctrl); + /* Setting PCFG_PROG_B signal to low */ + writel(control & ~DEVCFG_CTRL_PCFG_PROG_B, &devcfg_base->ctrl); + + /* Polling the PCAP_INIT status for Reset */ + ts = get_timer(0); + while (readl(&devcfg_base->status) & DEVCFG_STATUS_PCFG_INIT) { + if (get_timer(ts) > CONFIG_SYS_FPGA_WAIT) { + printf("%s: Timeout wait for INIT to clear\n", + __func__); + return FPGA_FAIL; + } + } + + /* Setting PCFG_PROG_B signal to high */ + writel(control | DEVCFG_CTRL_PCFG_PROG_B, &devcfg_base->ctrl); + + /* Polling the PCAP_INIT status for Set */ + ts = get_timer(0); + while (!(readl(&devcfg_base->status) & + DEVCFG_STATUS_PCFG_INIT)) { + if (get_timer(ts) > CONFIG_SYS_FPGA_WAIT) { + printf("%s: Timeout wait for INIT to set\n", + __func__); + return FPGA_FAIL; + } + } + } + + isr_status = readl(&devcfg_base->int_sts); + + /* Clear it all, so if Boot ROM comes back, it can proceed */ + writel(0xFFFFFFFF, &devcfg_base->int_sts); + + if (isr_status & DEVCFG_ISR_FATAL_ERROR_MASK) { + debug("%s: Fatal errors in PCAP 0x%X\n", __func__, isr_status); + + /* If RX FIFO overflow, need to flush RX FIFO first */ + if (isr_status & DEVCFG_ISR_RX_FIFO_OV) { + writel(DEVCFG_MCTRL_RFIFO_FLUSH, &devcfg_base->mctrl); + writel(0xFFFFFFFF, &devcfg_base->int_sts); + } + return FPGA_FAIL; + } + + status = readl(&devcfg_base->status); + + debug("%s: Status = 0x%08X\n", __func__, status); + + if (status & DEVCFG_STATUS_DMA_CMD_Q_F) { + debug("%s: Error: device busy\n", __func__); + return FPGA_FAIL; + } + + debug("%s: Device ready\n", __func__); + + if (!(status & DEVCFG_STATUS_DMA_CMD_Q_E)) { + if (!(readl(&devcfg_base->int_sts) & DEVCFG_ISR_DMA_DONE)) { + /* Error state, transfer cannot occur */ + debug("%s: ISR indicates error\n", __func__); + return FPGA_FAIL; + } else { + /* Clear out the status */ + writel(DEVCFG_ISR_DMA_DONE, &devcfg_base->int_sts); + } + } + + if (status & DEVCFG_STATUS_DMA_DONE_CNT_MASK) { + /* Clear the count of completed DMA transfers */ + writel(DEVCFG_STATUS_DMA_DONE_CNT_MASK, &devcfg_base->status); + } + + debug("%s: Source = 0x%08X\n", __func__, (u32)buf); + debug("%s: Size = %zu\n", __func__, bsize); + + /* Set up the transfer */ + writel((u32)buf | 1, &devcfg_base->dma_src_addr); + writel(0xFFFFFFFF, &devcfg_base->dma_dst_addr); + writel(bsize >> 2, &devcfg_base->dma_src_len); + writel(0, &devcfg_base->dma_dst_len); + + isr_status = readl(&devcfg_base->int_sts); + + /* Polling the PCAP_INIT status for Set */ + ts = get_timer(0); + while (!(isr_status & DEVCFG_ISR_DMA_DONE)) { + if (isr_status & DEVCFG_ISR_ERROR_FLAGS_MASK) { + debug("%s: Error: isr = 0x%08X\n", __func__, + isr_status); + debug("%s: Write count = 0x%08X\n", __func__, + readl(&devcfg_base->write_count)); + debug("%s: Read count = 0x%08X\n", __func__, + readl(&devcfg_base->read_count)); + + return FPGA_FAIL; + } + if (get_timer(ts) > CONFIG_SYS_FPGA_PROG_TIME) { + printf("%s: Timeout wait for DMA to complete\n", + __func__); + return FPGA_FAIL; + } + isr_status = readl(&devcfg_base->int_sts); + } + + debug("%s: DMA transfer is done\n", __func__); + + /* Check FPGA configuration completion */ + ts = get_timer(0); + while (!(isr_status & DEVCFG_ISR_PCFG_DONE)) { + if (get_timer(ts) > CONFIG_SYS_FPGA_WAIT) { + printf("%s: Timeout wait for FPGA to config\n", + __func__); + return FPGA_FAIL; + } + isr_status = readl(&devcfg_base->int_sts); + } + + debug("%s: FPGA config done\n", __func__); + + /* Clear out the DMA status */ + writel(DEVCFG_ISR_DMA_DONE, &devcfg_base->int_sts); + + if (!partialbit) + zynq_slcr_devcfg_enable(); + + return FPGA_SUCCESS; +} + +int zynq_dump(Xilinx_desc *desc, const void *buf, size_t bsize) +{ + return FPGA_FAIL; +} diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile index 5dbdbe3672..72e85a349a 100644 --- a/drivers/i2c/Makefile +++ b/drivers/i2c/Makefile @@ -46,6 +46,7 @@ COBJS-$(CONFIG_TSI108_I2C) += tsi108_i2c.o COBJS-$(CONFIG_U8500_I2C) += u8500_i2c.o COBJS-$(CONFIG_SH_I2C) += sh_i2c.o COBJS-$(CONFIG_SH_SH7734_I2C) += sh_sh7734_i2c.o +COBJS-$(CONFIG_ZYNQ_I2C) += zynq_i2c.o COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/i2c/zynq_i2c.c b/drivers/i2c/zynq_i2c.c new file mode 100644 index 0000000000..ec49660cf7 --- /dev/null +++ b/drivers/i2c/zynq_i2c.c @@ -0,0 +1,306 @@ +/* + * Driver for the Zynq-7000 PS I2C controller + * IP from Cadence (ID T-CS-PE-0007-100, Version R1p10f2) + * + * Author: Joe Hershberger <joe.hershberger@ni.com> + * Copyright (c) 2012 Joe Hershberger. + * + * Copyright (c) 2012-2013 Xilinx, Michal Simek + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <asm/io.h> +#include <i2c.h> +#include <asm/errno.h> +#include <asm/arch/hardware.h> + +/* i2c register set */ +struct zynq_i2c_registers { + u32 control; + u32 status; + u32 address; + u32 data; + u32 interrupt_status; + u32 transfer_size; + u32 slave_mon_pause; + u32 time_out; + u32 interrupt_mask; + u32 interrupt_enable; + u32 interrupt_disable; +}; + +/* Control register fields */ +#define ZYNQ_I2C_CONTROL_RW 0x00000001 +#define ZYNQ_I2C_CONTROL_MS 0x00000002 +#define ZYNQ_I2C_CONTROL_NEA 0x00000004 +#define ZYNQ_I2C_CONTROL_ACKEN 0x00000008 +#define ZYNQ_I2C_CONTROL_HOLD 0x00000010 +#define ZYNQ_I2C_CONTROL_SLVMON 0x00000020 +#define ZYNQ_I2C_CONTROL_CLR_FIFO 0x00000040 +#define ZYNQ_I2C_CONTROL_DIV_B_SHIFT 8 +#define ZYNQ_I2C_CONTROL_DIV_B_MASK 0x00003F00 +#define ZYNQ_I2C_CONTROL_DIV_A_SHIFT 14 +#define ZYNQ_I2C_CONTROL_DIV_A_MASK 0x0000C000 + +/* Status register values */ +#define ZYNQ_I2C_STATUS_RXDV 0x00000020 +#define ZYNQ_I2C_STATUS_TXDV 0x00000040 +#define ZYNQ_I2C_STATUS_RXOVF 0x00000080 +#define ZYNQ_I2C_STATUS_BA 0x00000100 + +/* Interrupt register fields */ +#define ZYNQ_I2C_INTERRUPT_COMP 0x00000001 +#define ZYNQ_I2C_INTERRUPT_DATA 0x00000002 +#define ZYNQ_I2C_INTERRUPT_NACK 0x00000004 +#define ZYNQ_I2C_INTERRUPT_TO 0x00000008 +#define ZYNQ_I2C_INTERRUPT_SLVRDY 0x00000010 +#define ZYNQ_I2C_INTERRUPT_RXOVF 0x00000020 +#define ZYNQ_I2C_INTERRUPT_TXOVF 0x00000040 +#define ZYNQ_I2C_INTERRUPT_RXUNF 0x00000080 +#define ZYNQ_I2C_INTERRUPT_ARBLOST 0x00000200 + +#define ZYNQ_I2C_FIFO_DEPTH 16 +#define ZYNQ_I2C_TRANSFERT_SIZE_MAX 255 /* Controller transfer limit */ + +#if defined(CONFIG_ZYNQ_I2C0) +# define ZYNQ_I2C_BASE ZYNQ_I2C_BASEADDR0 +#else +# define ZYNQ_I2C_BASE ZYNQ_I2C_BASEADDR1 +#endif + +static struct zynq_i2c_registers *zynq_i2c = + (struct zynq_i2c_registers *)ZYNQ_I2C_BASE; + +/* I2C init called by cmd_i2c when doing 'i2c reset'. */ +void i2c_init(int requested_speed, int slaveadd) +{ + /* 111MHz / ( (3 * 17) * 22 ) = ~100KHz */ + writel((16 << ZYNQ_I2C_CONTROL_DIV_B_SHIFT) | + (2 << ZYNQ_I2C_CONTROL_DIV_A_SHIFT), &zynq_i2c->control); + + /* Enable master mode, ack, and 7-bit addressing */ + setbits_le32(&zynq_i2c->control, ZYNQ_I2C_CONTROL_MS | + ZYNQ_I2C_CONTROL_ACKEN | ZYNQ_I2C_CONTROL_NEA); +} + +#ifdef DEBUG +static void zynq_i2c_debug_status(void) +{ + int int_status; + int status; + int_status = readl(&zynq_i2c->interrupt_status); + + status = readl(&zynq_i2c->status); + if (int_status || status) { + debug("Status: "); + if (int_status & ZYNQ_I2C_INTERRUPT_COMP) + debug("COMP "); + if (int_status & ZYNQ_I2C_INTERRUPT_DATA) + debug("DATA "); + if (int_status & ZYNQ_I2C_INTERRUPT_NACK) + debug("NACK "); + if (int_status & ZYNQ_I2C_INTERRUPT_TO) + debug("TO "); + if (int_status & ZYNQ_I2C_INTERRUPT_SLVRDY) + debug("SLVRDY "); + if (int_status & ZYNQ_I2C_INTERRUPT_RXOVF) + debug("RXOVF "); + if (int_status & ZYNQ_I2C_INTERRUPT_TXOVF) + debug("TXOVF "); + if (int_status & ZYNQ_I2C_INTERRUPT_RXUNF) + debug("RXUNF "); + if (int_status & ZYNQ_I2C_INTERRUPT_ARBLOST) + debug("ARBLOST "); + if (status & ZYNQ_I2C_STATUS_RXDV) + debug("RXDV "); + if (status & ZYNQ_I2C_STATUS_TXDV) + debug("TXDV "); + if (status & ZYNQ_I2C_STATUS_RXOVF) + debug("RXOVF "); + if (status & ZYNQ_I2C_STATUS_BA) + debug("BA "); + debug("TS%d ", readl(&zynq_i2c->transfer_size)); + debug("\n"); + } +} +#endif + +/* Wait for an interrupt */ +static u32 zynq_i2c_wait(u32 mask) +{ + int timeout, int_status; + + for (timeout = 0; timeout < 100; timeout++) { + udelay(100); + int_status = readl(&zynq_i2c->interrupt_status); + if (int_status & mask) + break; + } +#ifdef DEBUG + zynq_i2c_debug_status(); +#endif + /* Clear interrupt status flags */ + writel(int_status & mask, &zynq_i2c->interrupt_status); + + return int_status & mask; +} + +/* + * I2C probe called by cmd_i2c when doing 'i2c probe'. + * Begin read, nak data byte, end. + */ +int i2c_probe(u8 dev) +{ + /* Attempt to read a byte */ + setbits_le32(&zynq_i2c->control, ZYNQ_I2C_CONTROL_CLR_FIFO | + ZYNQ_I2C_CONTROL_RW); + clrbits_le32(&zynq_i2c->control, ZYNQ_I2C_CONTROL_HOLD); + writel(0xFF, &zynq_i2c->interrupt_status); + writel(dev, &zynq_i2c->address); + writel(1, &zynq_i2c->transfer_size); + + return (zynq_i2c_wait(ZYNQ_I2C_INTERRUPT_COMP | + ZYNQ_I2C_INTERRUPT_NACK) & + ZYNQ_I2C_INTERRUPT_COMP) ? 0 : -ETIMEDOUT; +} + +/* + * I2C read called by cmd_i2c when doing 'i2c read' and by cmd_eeprom.c + * Begin write, send address byte(s), begin read, receive data bytes, end. + */ +int i2c_read(u8 dev, uint addr, int alen, u8 *data, int length) +{ + u32 status; + u32 i = 0; + u8 *cur_data = data; + + /* Check the hardware can handle the requested bytes */ + if ((length < 0) || (length > ZYNQ_I2C_TRANSFERT_SIZE_MAX)) + return -EINVAL; + + /* Write the register address */ + setbits_le32(&zynq_i2c->control, ZYNQ_I2C_CONTROL_CLR_FIFO | + ZYNQ_I2C_CONTROL_HOLD); + /* + * Temporarily disable restart (by clearing hold) + * It doesn't seem to work. + */ + clrbits_le32(&zynq_i2c->control, ZYNQ_I2C_CONTROL_RW | + ZYNQ_I2C_CONTROL_HOLD); + writel(0xFF, &zynq_i2c->interrupt_status); + while (alen--) + writel(addr >> (8*alen), &zynq_i2c->data); + writel(dev, &zynq_i2c->address); + + /* Wait for the address to be sent */ + if (!zynq_i2c_wait(ZYNQ_I2C_INTERRUPT_COMP)) { + /* Release the bus */ + clrbits_le32(&zynq_i2c->control, ZYNQ_I2C_CONTROL_HOLD); + return -ETIMEDOUT; + } + debug("Device acked address\n"); + + setbits_le32(&zynq_i2c->control, ZYNQ_I2C_CONTROL_CLR_FIFO | + ZYNQ_I2C_CONTROL_RW); + /* Start reading data */ + writel(dev, &zynq_i2c->address); + writel(length, &zynq_i2c->transfer_size); + + /* Wait for data */ + do { + status = zynq_i2c_wait(ZYNQ_I2C_INTERRUPT_COMP | + ZYNQ_I2C_INTERRUPT_DATA); + if (!status) { + /* Release the bus */ + clrbits_le32(&zynq_i2c->control, ZYNQ_I2C_CONTROL_HOLD); + return -ETIMEDOUT; + } + debug("Read %d bytes\n", + length - readl(&zynq_i2c->transfer_size)); + for (; i < length - readl(&zynq_i2c->transfer_size); i++) + *(cur_data++) = readl(&zynq_i2c->data); + } while (readl(&zynq_i2c->transfer_size) != 0); + /* All done... release the bus */ + clrbits_le32(&zynq_i2c->control, ZYNQ_I2C_CONTROL_HOLD); + +#ifdef DEBUG + zynq_i2c_debug_status(); +#endif + return 0; +} + +/* + * I2C write called by cmd_i2c when doing 'i2c write' and by cmd_eeprom.c + * Begin write, send address byte(s), send data bytes, end. + */ +int i2c_write(u8 dev, uint addr, int alen, u8 *data, int length) +{ + u8 *cur_data = data; + + /* Write the register address */ + setbits_le32(&zynq_i2c->control, ZYNQ_I2C_CONTROL_CLR_FIFO | + ZYNQ_I2C_CONTROL_HOLD); + clrbits_le32(&zynq_i2c->control, ZYNQ_I2C_CONTROL_RW); + writel(0xFF, &zynq_i2c->interrupt_status); + while (alen--) + writel(addr >> (8*alen), &zynq_i2c->data); + /* Start the tranfer */ + writel(dev, &zynq_i2c->address); + if (!zynq_i2c_wait(ZYNQ_I2C_INTERRUPT_COMP)) { + /* Release the bus */ + clrbits_le32(&zynq_i2c->control, ZYNQ_I2C_CONTROL_HOLD); + return -ETIMEDOUT; + } + + debug("Device acked address\n"); + while (length--) { + writel(*(cur_data++), &zynq_i2c->data); + if (readl(&zynq_i2c->transfer_size) == ZYNQ_I2C_FIFO_DEPTH) { + if (!zynq_i2c_wait(ZYNQ_I2C_INTERRUPT_COMP)) { + /* Release the bus */ + clrbits_le32(&zynq_i2c->control, + ZYNQ_I2C_CONTROL_HOLD); + return -ETIMEDOUT; + } + } + } + + /* All done... release the bus */ + clrbits_le32(&zynq_i2c->control, ZYNQ_I2C_CONTROL_HOLD); + /* Wait for the address and data to be sent */ + if (!zynq_i2c_wait(ZYNQ_I2C_INTERRUPT_COMP)) + return -ETIMEDOUT; + return 0; +} + +int i2c_set_bus_num(unsigned int bus) +{ + /* Only support bus 0 */ + if (bus > 0) + return -1; + return 0; +} + +unsigned int i2c_get_bus_num(void) +{ + /* Only support bus 0 */ + return 0; +} diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index 1d6faa2a92..7cd4281733 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -49,6 +49,7 @@ COBJS-$(CONFIG_SH_MMCIF) += sh_mmcif.o COBJS-$(CONFIG_TEGRA_MMC) += tegra_mmc.o COBJS-$(CONFIG_DWMMC) += dw_mmc.o COBJS-$(CONFIG_EXYNOS_DWMMC) += exynos_dw_mmc.o +COBJS-$(CONFIG_ZYNQ_SDHCI) += zynq_sdhci.o COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index d732581eb8..2590f1bcce 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -601,7 +601,7 @@ static int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd) data.dest = (char *)ext_csd; data.blocks = 1; - data.blocksize = 512; + data.blocksize = MMC_MAX_BLOCK_LEN; data.flags = MMC_DATA_READ; err = mmc_send_cmd(mmc, &cmd, &data); @@ -634,7 +634,7 @@ static int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value) static int mmc_change_freq(struct mmc *mmc) { - ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, 512); + ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN); char cardtype; int err; @@ -784,6 +784,8 @@ retry_scr: break; case 2: mmc->version = SD_VERSION_2; + if ((mmc->scr[0] >> 15) & 0x1) + mmc->version = SD_VERSION_3; break; default: mmc->version = SD_VERSION_1_0; @@ -897,8 +899,8 @@ static int mmc_startup(struct mmc *mmc) uint mult, freq; u64 cmult, csize, capacity; struct mmc_cmd cmd; - ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, 512); - ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, 512); + ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN); + ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, MMC_MAX_BLOCK_LEN); int timeout = 1000; #ifdef CONFIG_MMC_SPI_CRC_ON @@ -1014,11 +1016,11 @@ static int mmc_startup(struct mmc *mmc) mmc->capacity = (csize + 1) << (cmult + 2); mmc->capacity *= mmc->read_bl_len; - if (mmc->read_bl_len > 512) - mmc->read_bl_len = 512; + if (mmc->read_bl_len > MMC_MAX_BLOCK_LEN) + mmc->read_bl_len = MMC_MAX_BLOCK_LEN; - if (mmc->write_bl_len > 512) - mmc->write_bl_len = 512; + if (mmc->write_bl_len > MMC_MAX_BLOCK_LEN) + mmc->write_bl_len = MMC_MAX_BLOCK_LEN; /* Select the card, and put it into Transfer Mode */ if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */ @@ -1049,20 +1051,39 @@ static int mmc_startup(struct mmc *mmc) | ext_csd[EXT_CSD_SEC_CNT + 1] << 8 | ext_csd[EXT_CSD_SEC_CNT + 2] << 16 | ext_csd[EXT_CSD_SEC_CNT + 3] << 24; - capacity *= 512; + capacity *= MMC_MAX_BLOCK_LEN; if ((capacity >> 20) > 2 * 1024) mmc->capacity = capacity; } + switch (ext_csd[EXT_CSD_REV]) { + case 1: + mmc->version = MMC_VERSION_4_1; + break; + case 2: + mmc->version = MMC_VERSION_4_2; + break; + case 3: + mmc->version = MMC_VERSION_4_3; + break; + case 5: + mmc->version = MMC_VERSION_4_41; + break; + case 6: + mmc->version = MMC_VERSION_4_5; + break; + } + /* * Check whether GROUP_DEF is set, if yes, read out * group size from ext_csd directly, or calculate * the group size from the csd value. */ - if (ext_csd[EXT_CSD_ERASE_GROUP_DEF]) + if (ext_csd[EXT_CSD_ERASE_GROUP_DEF]) { mmc->erase_grp_size = - ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * 512 * 1024; - else { + ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * + MMC_MAX_BLOCK_LEN * 1024; + } else { int erase_gsz, erase_gmul; erase_gsz = (mmc->csd[2] & 0x00007c00) >> 10; erase_gmul = (mmc->csd[2] & 0x000003e0) >> 5; @@ -1182,6 +1203,7 @@ static int mmc_startup(struct mmc *mmc) mmc->block_dev.lun = 0; mmc->block_dev.type = 0; mmc->block_dev.blksz = mmc->read_bl_len; + mmc->block_dev.log2blksz = LOG2(mmc->block_dev.blksz); mmc->block_dev.lba = lldiv(mmc->capacity, mmc->read_bl_len); sprintf(mmc->block_dev.vendor, "Man %06x Snr %04x%04x", mmc->cid[0] >> 24, (mmc->cid[2] & 0xffff), diff --git a/drivers/mmc/spl_mmc.c b/drivers/mmc/spl_mmc.c index 753c6a014a..7efdcb88b7 100644 --- a/drivers/mmc/spl_mmc.c +++ b/drivers/mmc/spl_mmc.c @@ -34,8 +34,9 @@ DECLARE_GLOBAL_DATA_PTR; static void mmc_load_image_raw(struct mmc *mmc) { - u32 image_size_sectors, err; - const struct image_header *header; + unsigned long err; + u32 image_size_sectors; + struct image_header *header; header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - sizeof(struct image_header)); @@ -43,9 +44,9 @@ static void mmc_load_image_raw(struct mmc *mmc) /* read image header to find the image size & load address */ err = mmc->block_dev.block_read(0, CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, 1, - (void *)header); + header); - if (err <= 0) + if (err == 0) goto end; spl_parse_image_header(header); @@ -60,8 +61,8 @@ static void mmc_load_image_raw(struct mmc *mmc) image_size_sectors, (void *)spl_image.load_addr); end: - if (err <= 0) { - printf("spl: mmc blk read err - %d\n", err); + if (err == 0) { + printf("spl: mmc blk read err - %lu\n", err); hang(); } } @@ -69,7 +70,7 @@ end: #ifdef CONFIG_SPL_FAT_SUPPORT static void mmc_load_image_fat(struct mmc *mmc) { - s32 err; + int err; struct image_header *header; header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - @@ -83,7 +84,7 @@ static void mmc_load_image_fat(struct mmc *mmc) } err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME, - (u8 *)header, sizeof(struct image_header)); + header, sizeof(struct image_header)); if (err <= 0) goto end; diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c new file mode 100644 index 0000000000..9e37af45fc --- /dev/null +++ b/drivers/mmc/zynq_sdhci.c @@ -0,0 +1,40 @@ +/* + * (C) Copyright 2013 Inc. + * + * Xilinx Zynq SD Host Controller Interface + * + * This program is free software; you can redistribute it and/or modify it under + * the terms of the GNU General Public License version 2 as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 59 Temple + * Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <common.h> +#include <malloc.h> +#include <sdhci.h> +#include <asm/arch/sys_proto.h> + +int zynq_sdhci_init(u32 regbase) +{ + struct sdhci_host *host = NULL; + + host = (struct sdhci_host *)malloc(sizeof(struct sdhci_host)); + if (!host) { + printf("zynq_sdhci_init: sdhci_host malloc fail\n"); + return 1; + } + + host->name = "zynq_sdhci"; + host->ioaddr = (void *)regbase; + host->quirks = SDHCI_QUIRK_NO_CD | SDHCI_QUIRK_WAIT_SEND_CMD; + host->version = sdhci_readw(host, SDHCI_HOST_VERSION); + + host->host_caps = MMC_MODE_HC; + + add_sdhci(host, 52000000, 52000000 >> 9); + return 0; +} diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c index cf10b0d4ca..22d84407dd 100644 --- a/drivers/mtd/cfi_flash.c +++ b/drivers/mtd/cfi_flash.c @@ -210,11 +210,9 @@ unsigned long flash_sector_size(flash_info_t *info, flash_sect_t sect) static inline void * flash_map (flash_info_t * info, flash_sect_t sect, uint offset) { - unsigned int byte_offset = offset * info->portwidth / info->chipwidth; - unsigned int addr = (info->start[sect] + byte_offset); - unsigned int mask = 0xffffffff << (info->portwidth - 1); + unsigned int byte_offset = offset * info->portwidth; - return (void *)(uintptr_t)(addr & mask); + return (void *)(info->start[sect] + byte_offset); } static inline void flash_unmap(flash_info_t *info, flash_sect_t sect, @@ -400,8 +398,6 @@ void flash_write_cmd (flash_info_t * info, flash_sect_t sect, #endif flash_write64(cword.ll, addr); break; - default: - printf("fwc: Unknown port width %d\n", info->portwidth); } /* Ensure all the instructions are fully finished */ @@ -589,6 +585,7 @@ static int flash_status_check (flash_info_t * info, flash_sect_t sector, prompt, info->start[sector], flash_read_long (info, sector, 0)); flash_write_cmd (info, sector, 0, info->cmd_reset); + udelay(1); return ERR_TIMOUT; } udelay (1); /* also triggers watchdog */ @@ -756,8 +753,12 @@ static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c) static flash_sect_t find_sector (flash_info_t * info, ulong addr) { static flash_sect_t saved_sector; /* previously found sector */ + static flash_info_t *saved_info; /* previously used flash bank */ flash_sect_t sector = saved_sector; + if ((info != saved_info) || (sector >= info->sector_count)) + sector = 0; + while ((info->start[sector] < addr) && (sector < info->sector_count - 1)) sector++; @@ -769,6 +770,7 @@ static flash_sect_t find_sector (flash_info_t * info, ulong addr) sector--; saved_sector = sector; + saved_info = info; return sector; } @@ -785,15 +787,12 @@ static int flash_write_cfiword (flash_info_t * info, ulong dest, /* Check if Flash is (sufficiently) erased */ switch (info->portwidth) { case FLASH_CFI_8BIT: - debug("%s: 8-bit 0x%02x\n", __func__, cword.c); flag = ((flash_read8(dstaddr) & cword.c) == cword.c); break; case FLASH_CFI_16BIT: - debug("%s: 16-bit 0x%04x\n", __func__, cword.w); flag = ((flash_read16(dstaddr) & cword.w) == cword.w); break; case FLASH_CFI_32BIT: - debug("%s: 32-bit 0x%08lx\n", __func__, cword.l); flag = ((flash_read32(dstaddr) & cword.l) == cword.l); break; case FLASH_CFI_64BIT: @@ -1054,8 +1053,6 @@ int flash_erase (flash_info_t * info, int s_first, int s_last) flash_sect_t sect; int st; - debug("%s: erasing sectors %d to %d\n", __func__, s_first, s_last); - if (info->flash_id != FLASH_MAN_CFI) { puts ("Can't erase unknown flash type - aborted\n"); return 1; @@ -1165,9 +1162,6 @@ int flash_erase (flash_info_t * info, int s_first, int s_last) rcode = 1; else if (flash_verbose) putc ('.'); - } else { - debug("\nSector %d is protected.\n", - info->protect[sect]); } } @@ -1863,7 +1857,7 @@ static void flash_read_cfi (flash_info_t *info, void *buf, unsigned int i; for (i = 0; i < len; i++) - p[i] = flash_read_uchar(info, start + (i * 2)); + p[i] = flash_read_uchar(info, start + i); } static void __flash_cmd_reset(flash_info_t *info) @@ -1884,40 +1878,21 @@ static int __flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry) { int cfi_offset; + /* Issue FLASH reset command */ + flash_cmd_reset(info); + for (cfi_offset=0; cfi_offset < sizeof(flash_offset_cfi) / sizeof(uint); cfi_offset++) { - /* Issue FLASH reset command */ - flash_cmd_reset(info); flash_write_cmd (info, 0, flash_offset_cfi[cfi_offset], FLASH_CMD_CFI); - if (flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP, 'Q') && - flash_isequal(info, 0, - FLASH_OFFSET_CFI_RESP + 2, 'R') && - flash_isequal(info, 0, - FLASH_OFFSET_CFI_RESP + 4, 'Y')) { + if (flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP, 'Q') + && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R') + && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) { flash_read_cfi(info, qry, FLASH_OFFSET_CFI_RESP, sizeof(struct cfi_qry)); -#ifdef CONFIG_SYS_FLASH_INTERFACE_WIDTH - info->interface = CONFIG_SYS_FLASH_INTERFACE_WIDTH; -#else info->interface = le16_to_cpu(qry->interface_desc); - /* Some flash chips can support multiple bus widths. - * In this case, override the interface width and - * limit it to the port width. - */ - if ((info->interface == FLASH_CFI_X8X16) && - (info->portwidth == FLASH_CFI_8BIT)) { - debug("Overriding 16-bit interface" - " width to 8-bit port width.\n"); - info->interface = FLASH_CFI_X8; - } else if ((info->interface == FLASH_CFI_X16X32) && - (info->portwidth == FLASH_CFI_16BIT)) { - debug("Overriding 16-bit interface" - " width to 16-bit port width.\n"); - info->interface = FLASH_CFI_X16; - } -#endif + info->cfi_offset = flash_offset_cfi[cfi_offset]; debug ("device interface is %d\n", info->interface); @@ -1928,8 +1903,8 @@ static int __flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry) info->chipwidth << CFI_FLASH_SHIFT_WIDTH); /* calculate command offsets as in the Linux driver */ - info->addr_unlock1 = 0xaaa; - info->addr_unlock2 = 0x555; + info->addr_unlock1 = 0x555; + info->addr_unlock2 = 0x2aa; /* * modify the unlock address if we are @@ -1963,12 +1938,8 @@ static int flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry) for (info->chipwidth = FLASH_CFI_BY8; info->chipwidth <= info->portwidth; info->chipwidth <<= 1) - if (__flash_detect_cfi(info, qry)) { - debug("Found CFI flash, portwidth %d," - " chipwidth %d\n", - info->portwidth, info->chipwidth); + if (__flash_detect_cfi(info, qry)) return 1; - } } debug ("not found\n"); return 0; @@ -1987,7 +1958,7 @@ static void flash_fixup_amd(flash_info_t *info, struct cfi_qry *qry) /* CFI < 1.1, try to guess from device id */ if ((info->device_id & 0x80) != 0) cfi_reverse_geometry(qry); - } else if (flash_read_uchar(info, info->ext_addr + 0x1e) == 3) { + } else if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) { /* CFI >= 1.1, deduct from top/bottom flag */ /* note: ext_addr is valid since cfi_version > 0 */ cfi_reverse_geometry(qry); @@ -2103,15 +2074,14 @@ ulong flash_get_size (phys_addr_t base, int banknum) if (flash_detect_cfi (info, &qry)) { info->vendor = le16_to_cpu(qry.p_id); - info->ext_addr = le16_to_cpu(qry.p_adr) * 2; - debug("extended address is 0x%x\n", info->ext_addr); + info->ext_addr = le16_to_cpu(qry.p_adr); num_erase_regions = qry.num_erase_regions; if (info->ext_addr) { info->cfi_version = (ushort) flash_read_uchar (info, - info->ext_addr + 6) << 8; + info->ext_addr + 3) << 8; info->cfi_version |= (ushort) flash_read_uchar (info, - info->ext_addr + 8); + info->ext_addr + 4); } #ifdef DEBUG @@ -2165,8 +2135,6 @@ ulong flash_get_size (phys_addr_t base, int banknum) debug ("device id is 0x%x\n", info->device_id); debug ("device id2 is 0x%x\n", info->device_id2); debug ("cfi version is 0x%04x\n", info->cfi_version); - debug("port width: %d, chipwidth: %d, interface: %d\n", - info->portwidth, info->chipwidth, info->interface); size_ratio = info->portwidth / info->chipwidth; /* if the chip is x8/x16 reduce the ratio by half */ diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index 35769c5ea3..8821704911 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -34,6 +34,7 @@ NORMAL_DRIVERS=y endif COBJS-$(CONFIG_SPL_NAND_AM33XX_BCH) += am335x_spl_bch.o +COBJS-$(CONFIG_SPL_NAND_DOCG4) += docg4_spl.o COBJS-$(CONFIG_SPL_NAND_SIMPLE) += nand_spl_simple.o COBJS-$(CONFIG_SPL_NAND_LOAD) += nand_spl_load.o COBJS-$(CONFIG_SPL_NAND_ECC) += nand_ecc.o @@ -77,6 +78,7 @@ COBJS-$(CONFIG_NAND_SPEAR) += spr_nand.o COBJS-$(CONFIG_TEGRA_NAND) += tegra_nand.o COBJS-$(CONFIG_NAND_OMAP_GPMC) += omap_gpmc.o COBJS-$(CONFIG_NAND_PLAT) += nand_plat.o +COBJS-$(CONFIG_NAND_DOCG4) += docg4.o else # minimal SPL drivers diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c new file mode 100644 index 0000000000..7dd9953bed --- /dev/null +++ b/drivers/mtd/nand/docg4.c @@ -0,0 +1,1028 @@ +/* + * drivers/mtd/nand/docg4.c + * + * Copyright (C) 2013 Mike Dunn <mikedunn@newsguy.com> + * + * This file is released under the terms of GPL v2 and any later version. + * See the file COPYING in the root directory of the source tree for details. + * + * mtd nand driver for M-Systems DiskOnChip G4 + * + * Tested on the Palm Treo 680. The G4 is also present on Toshiba Portege, Asus + * P526, some HTC smartphones (Wizard, Prophet, ...), O2 XDA Zinc, maybe others. + * Should work on these as well. Let me know! + * + * TODO: + * + * Mechanism for management of password-protected areas + * + * Hamming ecc when reading oob only + * + * According to the M-Sys documentation, this device is also available in a + * "dual-die" configuration having a 256MB capacity, but no mechanism for + * detecting this variant is documented. Currently this driver assumes 128MB + * capacity. + * + * Support for multiple cascaded devices ("floors"). Not sure which gadgets + * contain multiple G4s in a cascaded configuration, if any. + * + */ + + +#include <common.h> +#include <asm/arch/hardware.h> +#include <asm/io.h> +#include <asm/bitops.h> +#include <asm/errno.h> +#include <malloc.h> +#include <nand.h> +#include <linux/bch.h> +#include <linux/bitrev.h> +#include <linux/mtd/docg4.h> + +/* + * The device has a nop register which M-Sys claims is for the purpose of + * inserting precise delays. But beware; at least some operations fail if the + * nop writes are replaced with a generic delay! + */ +static inline void write_nop(void __iomem *docptr) +{ + writew(0, docptr + DOC_NOP); +} + + +static int poll_status(void __iomem *docptr) +{ + /* + * Busy-wait for the FLASHREADY bit to be set in the FLASHCONTROL + * register. Operations known to take a long time (e.g., block erase) + * should sleep for a while before calling this. + */ + + uint8_t flash_status; + + /* hardware quirk requires reading twice initially */ + flash_status = readb(docptr + DOC_FLASHCONTROL); + + do { + flash_status = readb(docptr + DOC_FLASHCONTROL); + } while (!(flash_status & DOC_CTRL_FLASHREADY)); + + return 0; +} + +static void write_addr(void __iomem *docptr, uint32_t docg4_addr) +{ + /* write the four address bytes packed in docg4_addr to the device */ + + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); + docg4_addr >>= 8; + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); + docg4_addr >>= 8; + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); + docg4_addr >>= 8; + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); +} + +/* + * This is a module parameter in the linux kernel version of this driver. It is + * hard-coded to 'off' for u-boot. This driver uses oob to mark bad blocks. + * This can be problematic when dealing with data not intended for the mtd/nand + * subsystem. For example, on boards that boot from the docg4 and use the IPL + * to load an spl + u-boot image, the blocks containing the image will be + * reported as "bad" because the oob of the first page of each block contains a + * magic number that the IPL looks for, which causes the badblock scan to + * erroneously add them to the bad block table. To erase such a block, use + * u-boot's 'nand scrub'. scrub is safe for the docg4. The device does have a + * factory bad block table, but it is read-only, and is used in conjunction with + * oob bad block markers that are written by mtd/nand when a block is deemed to + * be bad. To read data from "bad" blocks, use 'read.raw'. Unfortunately, + * read.raw does not use ecc, which would still work fine on such misidentified + * bad blocks. TODO: u-boot nand utilities need the ability to ignore bad + * blocks. + */ +static const int ignore_badblocks; /* remains false */ + +struct docg4_priv { + int status; + struct { + unsigned int command; + int column; + int page; + } last_command; + uint8_t oob_buf[16]; + uint8_t ecc_buf[7]; + int oob_page; + struct bch_control *bch; +}; +/* + * Oob bytes 0 - 6 are available to the user. + * Byte 7 is hamming ecc for first 7 bytes. Bytes 8 - 14 are hw-generated ecc. + * Byte 15 (the last) is used by the driver as a "page written" flag. + */ +static struct nand_ecclayout docg4_oobinfo = { + .eccbytes = 9, + .eccpos = {7, 8, 9, 10, 11, 12, 13, 14, 15}, + .oobavail = 7, + .oobfree = { {0, 7} } +}; + +static void reset(void __iomem *docptr) +{ + /* full device reset */ + + writew(DOC_ASICMODE_RESET | DOC_ASICMODE_MDWREN, docptr + DOC_ASICMODE); + writew(~(DOC_ASICMODE_RESET | DOC_ASICMODE_MDWREN), + docptr + DOC_ASICMODECONFIRM); + write_nop(docptr); + + writew(DOC_ASICMODE_NORMAL | DOC_ASICMODE_MDWREN, + docptr + DOC_ASICMODE); + writew(~(DOC_ASICMODE_NORMAL | DOC_ASICMODE_MDWREN), + docptr + DOC_ASICMODECONFIRM); + + writew(DOC_ECCCONF1_ECC_ENABLE, docptr + DOC_ECCCONF1); + + poll_status(docptr); +} + +static void docg4_select_chip(struct mtd_info *mtd, int chip) +{ + /* + * Select among multiple cascaded chips ("floors"). Multiple floors are + * not yet supported, so the only valid non-negative value is 0. + */ + void __iomem *docptr = CONFIG_SYS_NAND_BASE; + + if (chip < 0) + return; /* deselected */ + + if (chip > 0) + printf("multiple floors currently unsupported\n"); + + writew(0, docptr + DOC_DEVICESELECT); +} + +static void read_hw_ecc(void __iomem *docptr, uint8_t *ecc_buf) +{ + /* read the 7 hw-generated ecc bytes */ + + int i; + for (i = 0; i < 7; i++) { /* hw quirk; read twice */ + ecc_buf[i] = readb(docptr + DOC_BCH_SYNDROM(i)); + ecc_buf[i] = readb(docptr + DOC_BCH_SYNDROM(i)); + } +} + +static int correct_data(struct mtd_info *mtd, uint8_t *buf, int page) +{ + /* + * Called after a page read when hardware reports bitflips. + * Up to four bitflips can be corrected. + */ + + struct nand_chip *nand = mtd->priv; + struct docg4_priv *doc = nand->priv; + void __iomem *docptr = CONFIG_SYS_NAND_BASE; + int i, numerrs; + unsigned int errpos[4]; + const uint8_t blank_read_hwecc[8] = { + 0xcf, 0x72, 0xfc, 0x1b, 0xa9, 0xc7, 0xb9, 0 }; + + read_hw_ecc(docptr, doc->ecc_buf); /* read 7 hw-generated ecc bytes */ + + /* check if read error is due to a blank page */ + if (!memcmp(doc->ecc_buf, blank_read_hwecc, 7)) + return 0; /* yes */ + + /* skip additional check of "written flag" if ignore_badblocks */ + if (!ignore_badblocks) { + /* + * If the hw ecc bytes are not those of a blank page, there's + * still a chance that the page is blank, but was read with + * errors. Check the "written flag" in last oob byte, which + * is set to zero when a page is written. If more than half + * the bits are set, assume a blank page. Unfortunately, the + * bit flips(s) are not reported in stats. + */ + + if (doc->oob_buf[15]) { + int bit, numsetbits = 0; + unsigned long written_flag = doc->oob_buf[15]; + + for (bit = 0; bit < 8; bit++) { + if (written_flag & 0x01) + numsetbits++; + written_flag >>= 1; + } + if (numsetbits > 4) { /* assume blank */ + printf("errors in blank page at offset %08x\n", + page * DOCG4_PAGE_SIZE); + return 0; + } + } + } + + /* + * The hardware ecc unit produces oob_ecc ^ calc_ecc. The kernel's bch + * algorithm is used to decode this. However the hw operates on page + * data in a bit order that is the reverse of that of the bch alg, + * requiring that the bits be reversed on the result. Thanks to Ivan + * Djelic for his analysis! + */ + for (i = 0; i < 7; i++) + doc->ecc_buf[i] = bitrev8(doc->ecc_buf[i]); + + numerrs = decode_bch(doc->bch, NULL, DOCG4_USERDATA_LEN, NULL, + doc->ecc_buf, NULL, errpos); + + if (numerrs == -EBADMSG) { + printf("uncorrectable errors at offset %08x\n", + page * DOCG4_PAGE_SIZE); + return -EBADMSG; + } + + BUG_ON(numerrs < 0); /* -EINVAL, or anything other than -EBADMSG */ + + /* undo last step in BCH alg (modulo mirroring not needed) */ + for (i = 0; i < numerrs; i++) + errpos[i] = (errpos[i] & ~7)|(7-(errpos[i] & 7)); + + /* fix the errors */ + for (i = 0; i < numerrs; i++) { + /* ignore if error within oob ecc bytes */ + if (errpos[i] > DOCG4_USERDATA_LEN * 8) + continue; + + /* if error within oob area preceeding ecc bytes... */ + if (errpos[i] > DOCG4_PAGE_SIZE * 8) + __change_bit(errpos[i] - DOCG4_PAGE_SIZE * 8, + (unsigned long *)doc->oob_buf); + + else /* error in page data */ + __change_bit(errpos[i], (unsigned long *)buf); + } + + printf("%d error(s) corrected at offset %08x\n", + numerrs, page * DOCG4_PAGE_SIZE); + + return numerrs; +} + +static int read_progstatus(struct docg4_priv *doc, void __iomem *docptr) +{ + /* + * This apparently checks the status of programming. Done after an + * erasure, and after page data is written. On error, the status is + * saved, to be later retrieved by the nand infrastructure code. + */ + + /* status is read from the I/O reg */ + uint16_t status1 = readw(docptr + DOC_IOSPACE_DATA); + uint16_t status2 = readw(docptr + DOC_IOSPACE_DATA); + uint16_t status3 = readw(docptr + DOCG4_MYSTERY_REG); + + MTDDEBUG(MTD_DEBUG_LEVEL3, "docg4: %s: %02x %02x %02x\n", + __func__, status1, status2, status3); + + if (status1 != DOCG4_PROGSTATUS_GOOD || + status2 != DOCG4_PROGSTATUS_GOOD_2 || + status3 != DOCG4_PROGSTATUS_GOOD_2) { + doc->status = NAND_STATUS_FAIL; + printf("read_progstatus failed: %02x, %02x, %02x\n", + status1, status2, status3); + return -EIO; + } + return 0; +} + +static int pageprog(struct mtd_info *mtd) +{ + /* + * Final step in writing a page. Writes the contents of its + * internal buffer out to the flash array, or some such. + */ + + struct nand_chip *nand = mtd->priv; + struct docg4_priv *doc = nand->priv; + void __iomem *docptr = CONFIG_SYS_NAND_BASE; + int retval = 0; + + MTDDEBUG(MTD_DEBUG_LEVEL3, "docg4: %s\n", __func__); + + writew(DOCG4_SEQ_PAGEPROG, docptr + DOC_FLASHSEQUENCE); + writew(DOC_CMD_PROG_CYCLE2, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_nop(docptr); + + /* Just busy-wait; usleep_range() slows things down noticeably. */ + poll_status(docptr); + + writew(DOCG4_SEQ_FLUSH, docptr + DOC_FLASHSEQUENCE); + writew(DOCG4_CMD_FLUSH, docptr + DOC_FLASHCOMMAND); + writew(DOC_ECCCONF0_READ_MODE | 4, docptr + DOC_ECCCONF0); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + + retval = read_progstatus(doc, docptr); + writew(0, docptr + DOC_DATAEND); + write_nop(docptr); + poll_status(docptr); + write_nop(docptr); + + return retval; +} + +static void sequence_reset(void __iomem *docptr) +{ + /* common starting sequence for all operations */ + + writew(DOC_CTRL_UNKNOWN | DOC_CTRL_CE, docptr + DOC_FLASHCONTROL); + writew(DOC_SEQ_RESET, docptr + DOC_FLASHSEQUENCE); + writew(DOC_CMD_RESET, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_nop(docptr); + poll_status(docptr); + write_nop(docptr); +} + +static void read_page_prologue(void __iomem *docptr, uint32_t docg4_addr) +{ + /* first step in reading a page */ + + sequence_reset(docptr); + + writew(DOCG4_SEQ_PAGE_READ, docptr + DOC_FLASHSEQUENCE); + writew(DOCG4_CMD_PAGE_READ, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + + write_addr(docptr, docg4_addr); + + write_nop(docptr); + writew(DOCG4_CMD_READ2, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_nop(docptr); + + poll_status(docptr); +} + +static void write_page_prologue(void __iomem *docptr, uint32_t docg4_addr) +{ + /* first step in writing a page */ + + sequence_reset(docptr); + writew(DOCG4_SEQ_PAGEWRITE, docptr + DOC_FLASHSEQUENCE); + writew(DOCG4_CMD_PAGEWRITE, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_addr(docptr, docg4_addr); + write_nop(docptr); + write_nop(docptr); + poll_status(docptr); +} + +static uint32_t mtd_to_docg4_address(int page, int column) +{ + /* + * Convert mtd address to format used by the device, 32 bit packed. + * + * Some notes on G4 addressing... The M-Sys documentation on this device + * claims that pages are 2K in length, and indeed, the format of the + * address used by the device reflects that. But within each page are + * four 512 byte "sub-pages", each with its own oob data that is + * read/written immediately after the 512 bytes of page data. This oob + * data contains the ecc bytes for the preceeding 512 bytes. + * + * Rather than tell the mtd nand infrastructure that page size is 2k, + * with four sub-pages each, we engage in a little subterfuge and tell + * the infrastructure code that pages are 512 bytes in size. This is + * done because during the course of reverse-engineering the device, I + * never observed an instance where an entire 2K "page" was read or + * written as a unit. Each "sub-page" is always addressed individually, + * its data read/written, and ecc handled before the next "sub-page" is + * addressed. + * + * This requires us to convert addresses passed by the mtd nand + * infrastructure code to those used by the device. + * + * The address that is written to the device consists of four bytes: the + * first two are the 2k page number, and the second is the index into + * the page. The index is in terms of 16-bit half-words and includes + * the preceeding oob data, so e.g., the index into the second + * "sub-page" is 0x108, and the full device address of the start of mtd + * page 0x201 is 0x00800108. + */ + int g4_page = page / 4; /* device's 2K page */ + int g4_index = (page % 4) * 0x108 + column/2; /* offset into page */ + return (g4_page << 16) | g4_index; /* pack */ +} + +static void docg4_command(struct mtd_info *mtd, unsigned command, int column, + int page_addr) +{ + /* handle standard nand commands */ + + struct nand_chip *nand = mtd->priv; + struct docg4_priv *doc = nand->priv; + uint32_t g4_addr = mtd_to_docg4_address(page_addr, column); + + MTDDEBUG(MTD_DEBUG_LEVEL3, "%s %x, page_addr=%x, column=%x\n", + __func__, command, page_addr, column); + + /* + * Save the command and its arguments. This enables emulation of + * standard flash devices, and also some optimizations. + */ + doc->last_command.command = command; + doc->last_command.column = column; + doc->last_command.page = page_addr; + + switch (command) { + case NAND_CMD_RESET: + reset(CONFIG_SYS_NAND_BASE); + break; + + case NAND_CMD_READ0: + read_page_prologue(CONFIG_SYS_NAND_BASE, g4_addr); + break; + + case NAND_CMD_STATUS: + /* next call to read_byte() will expect a status */ + break; + + case NAND_CMD_SEQIN: + write_page_prologue(CONFIG_SYS_NAND_BASE, g4_addr); + + /* hack for deferred write of oob bytes */ + if (doc->oob_page == page_addr) + memcpy(nand->oob_poi, doc->oob_buf, 16); + break; + + case NAND_CMD_PAGEPROG: + pageprog(mtd); + break; + + /* we don't expect these, based on review of nand_base.c */ + case NAND_CMD_READOOB: + case NAND_CMD_READID: + case NAND_CMD_ERASE1: + case NAND_CMD_ERASE2: + printf("docg4_command: unexpected nand command 0x%x\n", + command); + break; + } +} + +static void docg4_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) +{ + int i; + struct nand_chip *nand = mtd->priv; + uint16_t *p = (uint16_t *)buf; + len >>= 1; + + for (i = 0; i < len; i++) + p[i] = readw(nand->IO_ADDR_R); +} + +static int docg4_read_oob(struct mtd_info *mtd, struct nand_chip *nand, + int page, int sndcmd) +{ + struct docg4_priv *doc = nand->priv; + void __iomem *docptr = CONFIG_SYS_NAND_BASE; + uint16_t status; + + MTDDEBUG(MTD_DEBUG_LEVEL3, "%s: page %x\n", __func__, page); + + /* + * Oob bytes are read as part of a normal page read. If the previous + * nand command was a read of the page whose oob is now being read, just + * copy the oob bytes that we saved in a local buffer and avoid a + * separate oob read. + */ + if (doc->last_command.command == NAND_CMD_READ0 && + doc->last_command.page == page) { + memcpy(nand->oob_poi, doc->oob_buf, 16); + return 0; + } + + /* + * Separate read of oob data only. + */ + docg4_command(mtd, NAND_CMD_READ0, nand->ecc.size, page); + + writew(DOC_ECCCONF0_READ_MODE | DOCG4_OOB_SIZE, docptr + DOC_ECCCONF0); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + + /* the 1st byte from the I/O reg is a status; the rest is oob data */ + status = readw(docptr + DOC_IOSPACE_DATA); + if (status & DOCG4_READ_ERROR) { + printf("docg4_read_oob failed: status = 0x%02x\n", status); + return -EIO; + } + + MTDDEBUG(MTD_DEBUG_LEVEL3, "%s: status = 0x%x\n", __func__, status); + + docg4_read_buf(mtd, nand->oob_poi, 16); + + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + writew(0, docptr + DOC_DATAEND); + write_nop(docptr); + + return 0; +} + +static int docg4_write_oob(struct mtd_info *mtd, struct nand_chip *nand, + int page) +{ + /* + * Writing oob-only is not really supported, because MLC nand must write + * oob bytes at the same time as page data. Nonetheless, we save the + * oob buffer contents here, and then write it along with the page data + * if the same page is subsequently written. This allows user space + * utilities that write the oob data prior to the page data to work + * (e.g., nandwrite). The disdvantage is that, if the intention was to + * write oob only, the operation is quietly ignored. Also, oob can get + * corrupted if two concurrent processes are running nandwrite. + */ + + /* note that bytes 7..14 are hw generated hamming/ecc and overwritten */ + struct docg4_priv *doc = nand->priv; + doc->oob_page = page; + memcpy(doc->oob_buf, nand->oob_poi, 16); + return 0; +} + +static int docg4_block_neverbad(struct mtd_info *mtd, loff_t ofs, int getchip) +{ + /* only called when module_param ignore_badblocks is set */ + return 0; +} + +static void docg4_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len) +{ + int i; + struct nand_chip *nand = mtd->priv; + uint16_t *p = (uint16_t *)buf; + len >>= 1; + + for (i = 0; i < len; i++) + writew(p[i], nand->IO_ADDR_W); +} + +static void write_page(struct mtd_info *mtd, struct nand_chip *nand, + const uint8_t *buf, int use_ecc) +{ + void __iomem *docptr = CONFIG_SYS_NAND_BASE; + uint8_t ecc_buf[8]; + + writew(DOC_ECCCONF0_ECC_ENABLE | + DOC_ECCCONF0_UNKNOWN | + DOCG4_BCH_SIZE, + docptr + DOC_ECCCONF0); + write_nop(docptr); + + /* write the page data */ + docg4_write_buf16(mtd, buf, DOCG4_PAGE_SIZE); + + /* oob bytes 0 through 5 are written to I/O reg */ + docg4_write_buf16(mtd, nand->oob_poi, 6); + + /* oob byte 6 written to a separate reg */ + writew(nand->oob_poi[6], docptr + DOCG4_OOB_6_7); + + write_nop(docptr); + write_nop(docptr); + + /* write hw-generated ecc bytes to oob */ + if (likely(use_ecc)) { + /* oob byte 7 is hamming code */ + uint8_t hamming = readb(docptr + DOC_HAMMINGPARITY); + hamming = readb(docptr + DOC_HAMMINGPARITY); /* 2nd read */ + writew(hamming, docptr + DOCG4_OOB_6_7); + write_nop(docptr); + + /* read the 7 bch bytes from ecc regs */ + read_hw_ecc(docptr, ecc_buf); + ecc_buf[7] = 0; /* clear the "page written" flag */ + } + + /* write user-supplied bytes to oob */ + else { + writew(nand->oob_poi[7], docptr + DOCG4_OOB_6_7); + write_nop(docptr); + memcpy(ecc_buf, &nand->oob_poi[8], 8); + } + + docg4_write_buf16(mtd, ecc_buf, 8); + write_nop(docptr); + write_nop(docptr); + writew(0, docptr + DOC_DATAEND); + write_nop(docptr); +} + +static void docg4_write_page_raw(struct mtd_info *mtd, struct nand_chip *nand, + const uint8_t *buf) +{ + return write_page(mtd, nand, buf, 0); +} + +static void docg4_write_page(struct mtd_info *mtd, struct nand_chip *nand, + const uint8_t *buf) +{ + return write_page(mtd, nand, buf, 1); +} + +static int read_page(struct mtd_info *mtd, struct nand_chip *nand, + uint8_t *buf, int page, int use_ecc) +{ + struct docg4_priv *doc = nand->priv; + void __iomem *docptr = CONFIG_SYS_NAND_BASE; + uint16_t status, edc_err, *buf16; + + writew(DOC_ECCCONF0_READ_MODE | + DOC_ECCCONF0_ECC_ENABLE | + DOC_ECCCONF0_UNKNOWN | + DOCG4_BCH_SIZE, + docptr + DOC_ECCCONF0); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + + /* the 1st byte from the I/O reg is a status; the rest is page data */ + status = readw(docptr + DOC_IOSPACE_DATA); + if (status & DOCG4_READ_ERROR) { + printf("docg4_read_page: bad status: 0x%02x\n", status); + writew(0, docptr + DOC_DATAEND); + return -EIO; + } + + docg4_read_buf(mtd, buf, DOCG4_PAGE_SIZE); /* read the page data */ + + /* first 14 oob bytes read from I/O reg */ + docg4_read_buf(mtd, nand->oob_poi, 14); + + /* last 2 read from another reg */ + buf16 = (uint16_t *)(nand->oob_poi + 14); + *buf16 = readw(docptr + DOCG4_MYSTERY_REG); + + /* + * Diskonchips read oob immediately after a page read. Mtd + * infrastructure issues a separate command for reading oob after the + * page is read. So we save the oob bytes in a local buffer and just + * copy it if the next command reads oob from the same page. + */ + memcpy(doc->oob_buf, nand->oob_poi, 16); + + write_nop(docptr); + + if (likely(use_ecc)) { + /* read the register that tells us if bitflip(s) detected */ + edc_err = readw(docptr + DOC_ECCCONF1); + edc_err = readw(docptr + DOC_ECCCONF1); + + /* If bitflips are reported, attempt to correct with ecc */ + if (edc_err & DOC_ECCCONF1_BCH_SYNDROM_ERR) { + int bits_corrected = correct_data(mtd, buf, page); + if (bits_corrected == -EBADMSG) + mtd->ecc_stats.failed++; + else + mtd->ecc_stats.corrected += bits_corrected; + } + } + + writew(0, docptr + DOC_DATAEND); + return 0; +} + + +static int docg4_read_page_raw(struct mtd_info *mtd, struct nand_chip *nand, + uint8_t *buf, int page) +{ + return read_page(mtd, nand, buf, page, 0); +} + +static int docg4_read_page(struct mtd_info *mtd, struct nand_chip *nand, + uint8_t *buf, int page) +{ + return read_page(mtd, nand, buf, page, 1); +} + +static void docg4_erase_block(struct mtd_info *mtd, int page) +{ + struct nand_chip *nand = mtd->priv; + struct docg4_priv *doc = nand->priv; + void __iomem *docptr = CONFIG_SYS_NAND_BASE; + uint16_t g4_page; + + MTDDEBUG(MTD_DEBUG_LEVEL3, "%s: page %04x\n", __func__, page); + + sequence_reset(docptr); + + writew(DOCG4_SEQ_BLOCKERASE, docptr + DOC_FLASHSEQUENCE); + writew(DOC_CMD_PROG_BLOCK_ADDR, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + + /* only 2 bytes of address are written to specify erase block */ + g4_page = (uint16_t)(page / 4); /* to g4's 2k page addressing */ + writeb(g4_page & 0xff, docptr + DOC_FLASHADDRESS); + g4_page >>= 8; + writeb(g4_page & 0xff, docptr + DOC_FLASHADDRESS); + write_nop(docptr); + + /* start the erasure */ + writew(DOC_CMD_ERASECYCLE2, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_nop(docptr); + + poll_status(docptr); + writew(DOCG4_SEQ_FLUSH, docptr + DOC_FLASHSEQUENCE); + writew(DOCG4_CMD_FLUSH, docptr + DOC_FLASHCOMMAND); + writew(DOC_ECCCONF0_READ_MODE | 4, docptr + DOC_ECCCONF0); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + + read_progstatus(doc, docptr); + + writew(0, docptr + DOC_DATAEND); + write_nop(docptr); + poll_status(docptr); + write_nop(docptr); +} + +static int read_factory_bbt(struct mtd_info *mtd) +{ + /* + * The device contains a read-only factory bad block table. Read it and + * update the memory-based bbt accordingly. + */ + + struct nand_chip *nand = mtd->priv; + uint32_t g4_addr = mtd_to_docg4_address(DOCG4_FACTORY_BBT_PAGE, 0); + uint8_t *buf; + int i, block, status; + + buf = kzalloc(DOCG4_PAGE_SIZE, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + read_page_prologue(CONFIG_SYS_NAND_BASE, g4_addr); + status = docg4_read_page(mtd, nand, buf, DOCG4_FACTORY_BBT_PAGE); + if (status) + goto exit; + + /* + * If no memory-based bbt was created, exit. This will happen if module + * parameter ignore_badblocks is set. Then why even call this function? + * For an unknown reason, block erase always fails if it's the first + * operation after device power-up. The above read ensures it never is. + * Ugly, I know. + */ + if (nand->bbt == NULL) /* no memory-based bbt */ + goto exit; + + /* + * Parse factory bbt and update memory-based bbt. Factory bbt format is + * simple: one bit per block, block numbers increase left to right (msb + * to lsb). Bit clear means bad block. + */ + for (i = block = 0; block < DOCG4_NUMBLOCKS; block += 8, i++) { + int bitnum; + uint8_t mask; + for (bitnum = 0, mask = 0x80; + bitnum < 8; bitnum++, mask >>= 1) { + if (!(buf[i] & mask)) { + int badblock = block + bitnum; + nand->bbt[badblock / 4] |= + 0x03 << ((badblock % 4) * 2); + mtd->ecc_stats.badblocks++; + printf("factory-marked bad block: %d\n", + badblock); + } + } + } + exit: + kfree(buf); + return status; +} + +static int docg4_block_markbad(struct mtd_info *mtd, loff_t ofs) +{ + /* + * Mark a block as bad. Bad blocks are marked in the oob area of the + * first page of the block. The default scan_bbt() in the nand + * infrastructure code works fine for building the memory-based bbt + * during initialization, as does the nand infrastructure function that + * checks if a block is bad by reading the bbt. This function replaces + * the nand default because writes to oob-only are not supported. + */ + + int ret, i; + uint8_t *buf; + struct nand_chip *nand = mtd->priv; + struct nand_bbt_descr *bbtd = nand->badblock_pattern; + int block = (int)(ofs >> nand->bbt_erase_shift); + int page = (int)(ofs >> nand->page_shift); + uint32_t g4_addr = mtd_to_docg4_address(page, 0); + + MTDDEBUG(MTD_DEBUG_LEVEL3, "%s: %08llx\n", __func__, ofs); + + if (unlikely(ofs & (DOCG4_BLOCK_SIZE - 1))) + printf("%s: ofs %llx not start of block!\n", + __func__, ofs); + + /* allocate blank buffer for page data */ + buf = kzalloc(DOCG4_PAGE_SIZE, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + /* update bbt in memory */ + nand->bbt[block / 4] |= 0x01 << ((block & 0x03) * 2); + + /* write bit-wise negation of pattern to oob buffer */ + memset(nand->oob_poi, 0xff, mtd->oobsize); + for (i = 0; i < bbtd->len; i++) + nand->oob_poi[bbtd->offs + i] = ~bbtd->pattern[i]; + + /* write first page of block */ + write_page_prologue(CONFIG_SYS_NAND_BASE, g4_addr); + docg4_write_page(mtd, nand, buf); + ret = pageprog(mtd); + if (!ret) + mtd->ecc_stats.badblocks++; + + kfree(buf); + + return ret; +} + +static uint8_t docg4_read_byte(struct mtd_info *mtd) +{ + struct nand_chip *nand = mtd->priv; + struct docg4_priv *doc = nand->priv; + + MTDDEBUG(MTD_DEBUG_LEVEL3, "%s\n", __func__); + + if (doc->last_command.command == NAND_CMD_STATUS) { + int status; + + /* + * Previous nand command was status request, so nand + * infrastructure code expects to read the status here. If an + * error occurred in a previous operation, report it. + */ + doc->last_command.command = 0; + + if (doc->status) { + status = doc->status; + doc->status = 0; + } + + /* why is NAND_STATUS_WP inverse logic?? */ + else + status = NAND_STATUS_WP | NAND_STATUS_READY; + + return status; + } + + printf("unexpectd call to read_byte()\n"); + + return 0; +} + +static int docg4_wait(struct mtd_info *mtd, struct nand_chip *nand) +{ + struct docg4_priv *doc = nand->priv; + int status = NAND_STATUS_WP; /* inverse logic?? */ + MTDDEBUG(MTD_DEBUG_LEVEL3, "%s...\n", __func__); + + /* report any previously unreported error */ + if (doc->status) { + status |= doc->status; + doc->status = 0; + return status; + } + + status |= poll_status(CONFIG_SYS_NAND_BASE); + return status; +} + +int docg4_nand_init(struct mtd_info *mtd, struct nand_chip *nand, int devnum) +{ + uint16_t id1, id2; + struct docg4_priv *docg4; + int retval; + + docg4 = kzalloc(sizeof(*docg4), GFP_KERNEL); + if (!docg4) + return -1; + + mtd->priv = nand; + nand->priv = docg4; + + /* These must be initialized here because the docg4 is non-standard + * and doesn't produce an id that the nand code can use to look up + * these values (nand_scan_ident() not called). + */ + mtd->size = DOCG4_CHIP_SIZE; + mtd->name = "Msys_Diskonchip_G4"; + mtd->writesize = DOCG4_PAGE_SIZE; + mtd->erasesize = DOCG4_BLOCK_SIZE; + mtd->oobsize = DOCG4_OOB_SIZE; + + nand->IO_ADDR_R = + (void __iomem *)CONFIG_SYS_NAND_BASE + DOC_IOSPACE_DATA; + nand->IO_ADDR_W = nand->IO_ADDR_R; + nand->chipsize = DOCG4_CHIP_SIZE; + nand->chip_shift = DOCG4_CHIP_SHIFT; + nand->bbt_erase_shift = DOCG4_ERASE_SHIFT; + nand->phys_erase_shift = DOCG4_ERASE_SHIFT; + nand->chip_delay = 20; + nand->page_shift = DOCG4_PAGE_SHIFT; + nand->pagemask = 0x3ffff; + nand->badblockpos = NAND_LARGE_BADBLOCK_POS; + nand->badblockbits = 8; + nand->ecc.layout = &docg4_oobinfo; + nand->ecc.mode = NAND_ECC_HW_SYNDROME; + nand->ecc.size = DOCG4_PAGE_SIZE; + nand->ecc.prepad = 8; + nand->ecc.bytes = 8; + nand->options = + NAND_BUSWIDTH_16 | NAND_NO_SUBPAGE_WRITE | NAND_NO_AUTOINCR; + nand->controller = &nand->hwcontrol; + + /* methods */ + nand->cmdfunc = docg4_command; + nand->waitfunc = docg4_wait; + nand->select_chip = docg4_select_chip; + nand->read_byte = docg4_read_byte; + nand->block_markbad = docg4_block_markbad; + nand->read_buf = docg4_read_buf; + nand->write_buf = docg4_write_buf16; + nand->scan_bbt = nand_default_bbt; + nand->erase_cmd = docg4_erase_block; + nand->ecc.read_page = docg4_read_page; + nand->ecc.write_page = docg4_write_page; + nand->ecc.read_page_raw = docg4_read_page_raw; + nand->ecc.write_page_raw = docg4_write_page_raw; + nand->ecc.read_oob = docg4_read_oob; + nand->ecc.write_oob = docg4_write_oob; + + /* + * The way the nand infrastructure code is written, a memory-based bbt + * is not created if NAND_SKIP_BBTSCAN is set. With no memory bbt, + * nand->block_bad() is used. So when ignoring bad blocks, we skip the + * scan and define a dummy block_bad() which always returns 0. + */ + if (ignore_badblocks) { + nand->options |= NAND_SKIP_BBTSCAN; + nand->block_bad = docg4_block_neverbad; + } + + reset(CONFIG_SYS_NAND_BASE); + + /* check for presence of g4 chip by reading id registers */ + id1 = readw(CONFIG_SYS_NAND_BASE + DOC_CHIPID); + id1 = readw(CONFIG_SYS_NAND_BASE + DOCG4_MYSTERY_REG); + id2 = readw(CONFIG_SYS_NAND_BASE + DOC_CHIPID_INV); + id2 = readw(CONFIG_SYS_NAND_BASE + DOCG4_MYSTERY_REG); + if (id1 != DOCG4_IDREG1_VALUE || id2 != DOCG4_IDREG2_VALUE) + return -1; + + /* initialize bch algorithm */ + docg4->bch = init_bch(DOCG4_M, DOCG4_T, DOCG4_PRIMITIVE_POLY); + if (docg4->bch == NULL) + return -1; + + retval = nand_scan_tail(mtd); + if (retval) + return -1; + + /* + * Scan for bad blocks and create bbt here, then add the factory-marked + * bad blocks to the bbt. + */ + nand->scan_bbt(mtd); + nand->options |= NAND_BBT_SCANNED; + retval = read_factory_bbt(mtd); + if (retval) + return -1; + + retval = nand_register(devnum); + if (retval) + return -1; + + return 0; +} diff --git a/drivers/mtd/nand/docg4_spl.c b/drivers/mtd/nand/docg4_spl.c new file mode 100644 index 0000000000..95e856c213 --- /dev/null +++ b/drivers/mtd/nand/docg4_spl.c @@ -0,0 +1,222 @@ +/* + * SPL driver for Diskonchip G4 nand flash + * + * Copyright (C) 2013 Mike Dunn <mikedunn@newsguy.com> + * + * This file is released under the terms of GPL v2 and any later version. + * See the file COPYING in the root directory of the source tree for details. + * + * + * This driver basically mimics the load functionality of a typical IPL (initial + * program loader) resident in the 2k NOR-like region of the docg4 that is + * mapped to the reset vector. It allows the u-boot SPL to continue loading if + * the IPL loads a fixed number of flash blocks that is insufficient to contain + * the entire u-boot image. In this case, a concatenated spl + u-boot image is + * written at the flash offset from which the IPL loads an image, and when the + * IPL jumps to the SPL, the SPL resumes loading where the IPL left off. See + * the palmtreo680 for an example. + * + * This driver assumes that the data was written to the flash using the device's + * "reliable" mode, and also assumes that each 512 byte page is stored + * redundantly in the subsequent page. This storage format is likely to be used + * by all boards that boot from the docg4. The format compensates for the lack + * of ecc in the IPL. + * + * Reliable mode reduces the capacity of a block by half, and the redundant + * pages reduce it by half again. As a result, the normal 256k capacity of a + * block is reduced to 64k for the purposes of the IPL/SPL. + */ + +#include <asm/io.h> +#include <linux/mtd/docg4.h> + +/* forward declarations */ +static inline void write_nop(void __iomem *docptr); +static int poll_status(void __iomem *docptr); +static void write_addr(void __iomem *docptr, uint32_t docg4_addr); +static void address_sequence(unsigned int g4_page, unsigned int g4_index, + void __iomem *docptr); +static int docg4_load_block_reliable(uint32_t flash_offset, void *dest_addr); + +int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst) +{ + void *load_addr = dst; + uint32_t flash_offset = offs; + const unsigned int block_count = + (size + DOCG4_BLOCK_CAPACITY_SPL - 1) + / DOCG4_BLOCK_CAPACITY_SPL; + int i; + + for (i = 0; i < block_count; i++) { + int ret = docg4_load_block_reliable(flash_offset, load_addr); + if (ret) + return ret; + load_addr += DOCG4_BLOCK_CAPACITY_SPL; + flash_offset += DOCG4_BLOCK_SIZE; + } + return 0; +} + +static inline void write_nop(void __iomem *docptr) +{ + writew(0, docptr + DOC_NOP); +} + +static int poll_status(void __iomem *docptr) +{ + /* + * Busy-wait for the FLASHREADY bit to be set in the FLASHCONTROL + * register. Operations known to take a long time (e.g., block erase) + * should sleep for a while before calling this. + */ + + uint8_t flash_status; + + /* hardware quirk requires reading twice initially */ + flash_status = readb(docptr + DOC_FLASHCONTROL); + + do { + flash_status = readb(docptr + DOC_FLASHCONTROL); + } while (!(flash_status & DOC_CTRL_FLASHREADY)); + + return 0; +} + +static void write_addr(void __iomem *docptr, uint32_t docg4_addr) +{ + /* write the four address bytes packed in docg4_addr to the device */ + + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); + docg4_addr >>= 8; + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); + docg4_addr >>= 8; + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); + docg4_addr >>= 8; + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); +} + +static void address_sequence(unsigned int g4_page, unsigned int g4_index, + void __iomem *docptr) +{ + writew(DOCG4_SEQ_PAGE_READ, docptr + DOC_FLASHSEQUENCE); + writew(DOCG4_CMD_PAGE_READ, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_addr(docptr, ((uint32_t)g4_page << 16) | g4_index); + write_nop(docptr); +} + +static int docg4_load_block_reliable(uint32_t flash_offset, void *dest_addr) +{ + void __iomem *docptr = (void *)CONFIG_SYS_NAND_BASE; + unsigned int g4_page = flash_offset >> 11; /* 2k page */ + const unsigned int last_g4_page = g4_page + 0x80; /* last in block */ + int g4_index = 0; + uint16_t flash_status; + uint16_t *buf; + uint16_t discard, magic_high, magic_low; + + /* flash_offset must be aligned to the start of a block */ + if (flash_offset & 0x3ffff) + return -1; + + writew(DOC_SEQ_RESET, docptr + DOC_FLASHSEQUENCE); + writew(DOC_CMD_RESET, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_nop(docptr); + poll_status(docptr); + write_nop(docptr); + writew(0x45, docptr + DOC_FLASHSEQUENCE); + writew(0xa3, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + writew(0x22, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + + /* read 1st 4 oob bytes of first subpage of block */ + address_sequence(g4_page, 0x0100, docptr); /* index at oob */ + write_nop(docptr); + flash_status = readw(docptr + DOC_FLASHCONTROL); + flash_status = readw(docptr + DOC_FLASHCONTROL); + if (flash_status & 0x06) /* sequence or protection errors */ + return -1; + writew(DOCG4_CMD_READ2, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_nop(docptr); + poll_status(docptr); + writew(DOC_ECCCONF0_READ_MODE | 4, docptr + DOC_ECCCONF0); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + + /* + * Here we read the first four oob bytes of the first page of the block. + * The IPL on the palmtreo680 requires that this contain a 32 bit magic + * number, or the load aborts. We'll ignore it. + */ + discard = readw(docptr + 0x103c); /* hw quirk; 1st read discarded */ + magic_low = readw(docptr + 0x103c); + magic_high = readw(docptr + DOCG4_MYSTERY_REG); + writew(0, docptr + DOC_DATAEND); + write_nop(docptr); + write_nop(docptr); + + /* load contents of block to memory */ + buf = (uint16_t *)dest_addr; + do { + int i; + + address_sequence(g4_page, g4_index, docptr); + writew(DOCG4_CMD_READ2, + docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_nop(docptr); + poll_status(docptr); + writew(DOC_ECCCONF0_READ_MODE | + DOC_ECCCONF0_ECC_ENABLE | + DOCG4_BCH_SIZE, + docptr + DOC_ECCCONF0); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + + /* read the 512 bytes of page data, 2 bytes at a time */ + discard = readw(docptr + 0x103c); + for (i = 0; i < 256; i++) + *buf++ = readw(docptr + 0x103c); + + /* read oob, but discard it */ + for (i = 0; i < 7; i++) + discard = readw(docptr + 0x103c); + discard = readw(docptr + DOCG4_OOB_6_7); + discard = readw(docptr + DOCG4_OOB_6_7); + + writew(0, docptr + DOC_DATAEND); + write_nop(docptr); + write_nop(docptr); + + if (!(g4_index & 0x100)) { + /* not redundant subpage read; check for ecc error */ + write_nop(docptr); + flash_status = readw(docptr + DOC_ECCCONF1); + flash_status = readw(docptr + DOC_ECCCONF1); + if (flash_status & 0x80) { /* ecc error */ + g4_index += 0x108; /* read redundant subpage */ + buf -= 256; /* back up ram ptr */ + continue; + } else /* no ecc error */ + g4_index += 0x210; /* skip redundant subpage */ + } else /* redundant page was just read; skip ecc error check */ + g4_index += 0x108; + + if (g4_index == 0x420) { /* finished with 2k page */ + g4_index = 0; + g4_page += 2; /* odd-numbered 2k pages skipped */ + } + + } while (g4_page != last_g4_page); /* while still on same block */ + + return 0; +} diff --git a/drivers/mtd/nand/mxc_nand_spl.c b/drivers/mtd/nand/mxc_nand_spl.c index 5608352a45..f13d5fc581 100644 --- a/drivers/mtd/nand/mxc_nand_spl.c +++ b/drivers/mtd/nand/mxc_nand_spl.c @@ -358,16 +358,4 @@ void nand_boot(void) hang(); } } - -/* - * Called in case of an exception. - */ -void hang(void) -{ - /* Loop forever */ - while (1) ; -} #endif - -void nand_init(void) {} -void nand_deselect(void) {} diff --git a/drivers/net/fm/memac.c b/drivers/net/fm/memac.c index 32c7054e35..d3eee248ac 100644 --- a/drivers/net/fm/memac.c +++ b/drivers/net/fm/memac.c @@ -112,6 +112,23 @@ static void memac_set_interface_mode(struct fsl_enet_mac *mac, /* Enable automatic speed selection */ if_mode |= IF_MODE_EN_AUTO; + if (type == PHY_INTERFACE_MODE_RGMII) { + if_mode &= ~IF_MODE_EN_AUTO; + if_mode &= ~IF_MODE_SETSP_MASK; + switch (speed) { + case SPEED_1000: + if_mode |= IF_MODE_SETSP_1000M; + break; + case SPEED_100: + if_mode |= IF_MODE_SETSP_100M; + break; + case SPEED_10: + if_mode |= IF_MODE_SETSP_10M; + default: + break; + } + } + debug(" %s, if_mode = %x\n", __func__, if_mode); debug(" %s, if_status = %x\n", __func__, if_status); out_be32(®s->if_mode, if_mode); diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index 4b271989ac..46801c7919 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -465,6 +465,16 @@ static struct phy_driver M88E1149S_driver = { .shutdown = &genphy_shutdown, }; +static struct phy_driver M88E1518_driver = { + .name = "Marvell 88E1518", + .uid = 0x1410dd1, + .mask = 0xffffff0, + .features = PHY_GBIT_FEATURES, + .config = &m88e1111s_config, + .startup = &m88e1011s_startup, + .shutdown = &genphy_shutdown, +}; + int phy_marvell_init(void) { phy_register(&M88E1149S_driver); @@ -474,6 +484,7 @@ int phy_marvell_init(void) phy_register(&M88E1118R_driver); phy_register(&M88E1111S_driver); phy_register(&M88E1011S_driver); + phy_register(&M88E1518_driver); return 0; } diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c index 3596065694..eac9b6f458 100644 --- a/drivers/net/zynq_gem.c +++ b/drivers/net/zynq_gem.c @@ -33,6 +33,8 @@ #include <phy.h> #include <miiphy.h> #include <watchdog.h> +#include <asm/arch/hardware.h> +#include <asm/arch/sys_proto.h> #if !defined(CONFIG_PHYLIB) # error XILINX_GEM_ETHERNET requires PHYLIB @@ -67,13 +69,14 @@ #define ZYNQ_GEM_NWCTRL_MDEN_MASK 0x00000010 /* Enable MDIO port */ #define ZYNQ_GEM_NWCTRL_STARTTX_MASK 0x00000200 /* Start tx (tx_go) */ -#define ZYNQ_GEM_NWCFG_SPEED 0x00000001 /* 100 Mbps operation */ -#define ZYNQ_GEM_NWCFG_FDEN 0x00000002 /* Full Duplex mode */ -#define ZYNQ_GEM_NWCFG_FSREM 0x00020000 /* FCS removal */ +#define ZYNQ_GEM_NWCFG_SPEED100 0x000000001 /* 100 Mbps operation */ +#define ZYNQ_GEM_NWCFG_SPEED1000 0x000000400 /* 1Gbps operation */ +#define ZYNQ_GEM_NWCFG_FDEN 0x000000002 /* Full Duplex mode */ +#define ZYNQ_GEM_NWCFG_FSREM 0x000020000 /* FCS removal */ #define ZYNQ_GEM_NWCFG_MDCCLKDIV 0x000080000 /* Div pclk by 32, 80MHz */ +#define ZYNQ_GEM_NWCFG_MDCCLKDIV2 0x0000c0000 /* Div pclk by 48, 120MHz */ -#define ZYNQ_GEM_NWCFG_INIT (ZYNQ_GEM_NWCFG_SPEED | \ - ZYNQ_GEM_NWCFG_FDEN | \ +#define ZYNQ_GEM_NWCFG_INIT (ZYNQ_GEM_NWCFG_FDEN | \ ZYNQ_GEM_NWCFG_FSREM | \ ZYNQ_GEM_NWCFG_MDCCLKDIV) @@ -92,6 +95,17 @@ ZYNQ_GEM_DMACR_TXSIZE | \ ZYNQ_GEM_DMACR_RXBUF) +/* Use MII register 1 (MII status register) to detect PHY */ +#define PHY_DETECT_REG 1 + +/* Mask used to verify certain PHY features (or register contents) + * in the register above: + * 0x1000: 10Mbps full duplex support + * 0x0800: 10Mbps half duplex support + * 0x0008: Auto-negotiation support + */ +#define PHY_DETECT_MASK 0x1808 + /* Device registers */ struct zynq_gem_regs { u32 nwctrl; /* Network Control reg */ @@ -134,6 +148,8 @@ struct zynq_gem_priv { u32 rxbd_current; u32 rx_first_buf; int phyaddr; + u32 emio; + int init; struct phy_device *phydev; struct mii_dev *bus; }; @@ -196,6 +212,44 @@ static u32 phywrite(struct eth_device *dev, u32 phy_addr, u32 regnum, u16 data) ZYNQ_GEM_PHYMNTNC_OP_W_MASK, &data); } +static void phy_detection(struct eth_device *dev) +{ + int i; + u16 phyreg; + struct zynq_gem_priv *priv = dev->priv; + + if (priv->phyaddr != -1) { + phyread(dev, priv->phyaddr, PHY_DETECT_REG, &phyreg); + if ((phyreg != 0xFFFF) && + ((phyreg & PHY_DETECT_MASK) == PHY_DETECT_MASK)) { + /* Found a valid PHY address */ + debug("Default phy address %d is valid\n", + priv->phyaddr); + return; + } else { + debug("PHY address is not setup correctly %d\n", + priv->phyaddr); + priv->phyaddr = -1; + } + } + + debug("detecting phy address\n"); + if (priv->phyaddr == -1) { + /* detect the PHY address */ + for (i = 31; i >= 0; i--) { + phyread(dev, i, PHY_DETECT_REG, &phyreg); + if ((phyreg != 0xFFFF) && + ((phyreg & PHY_DETECT_MASK) == PHY_DETECT_MASK)) { + /* Found a valid PHY address */ + priv->phyaddr = i; + debug("Found valid phy address, %d\n", i); + return; + } + } + } + printf("PHY is not detected\n"); +} + static int zynq_gem_setup_mac(struct eth_device *dev) { u32 i, macaddrlow, macaddrhigh; @@ -226,7 +280,7 @@ static int zynq_gem_setup_mac(struct eth_device *dev) static int zynq_gem_init(struct eth_device *dev, bd_t * bis) { - u32 i; + u32 i, rclk, clk = 0; struct phy_device *phydev; const u32 stat_size = (sizeof(struct zynq_gem_regs) - offsetof(struct zynq_gem_regs, stat)) / 4; @@ -239,59 +293,92 @@ static int zynq_gem_init(struct eth_device *dev, bd_t * bis) SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full; - /* Disable all interrupts */ - writel(0xFFFFFFFF, ®s->idr); - - /* Disable the receiver & transmitter */ - writel(0, ®s->nwctrl); - writel(0, ®s->txsr); - writel(0, ®s->rxsr); - writel(0, ®s->phymntnc); - - /* Clear the Hash registers for the mac address pointed by AddressPtr */ - writel(0x0, ®s->hashl); - /* Write bits [63:32] in TOP */ - writel(0x0, ®s->hashh); + if (!priv->init) { + /* Disable all interrupts */ + writel(0xFFFFFFFF, ®s->idr); + + /* Disable the receiver & transmitter */ + writel(0, ®s->nwctrl); + writel(0, ®s->txsr); + writel(0, ®s->rxsr); + writel(0, ®s->phymntnc); + + /* Clear the Hash registers for the mac address + * pointed by AddressPtr + */ + writel(0x0, ®s->hashl); + /* Write bits [63:32] in TOP */ + writel(0x0, ®s->hashh); + + /* Clear all counters */ + for (i = 0; i <= stat_size; i++) + readl(®s->stat[i]); + + /* Setup RxBD space */ + memset(&(priv->rx_bd), 0, sizeof(priv->rx_bd)); + /* Create the RxBD ring */ + memset(&(priv->rxbuffers), 0, sizeof(priv->rxbuffers)); + + for (i = 0; i < RX_BUF; i++) { + priv->rx_bd[i].status = 0xF0000000; + priv->rx_bd[i].addr = + (u32)((char *)&(priv->rxbuffers) + + (i * PKTSIZE_ALIGN)); + } + /* WRAP bit to last BD */ + priv->rx_bd[--i].addr |= ZYNQ_GEM_RXBUF_WRAP_MASK; + /* Write RxBDs to IP */ + writel((u32)&(priv->rx_bd), ®s->rxqbase); - /* Clear all counters */ - for (i = 0; i <= stat_size; i++) - readl(®s->stat[i]); + /* Setup for DMA Configuration register */ + writel(ZYNQ_GEM_DMACR_INIT, ®s->dmacr); - /* Setup RxBD space */ - memset(&(priv->rx_bd), 0, sizeof(priv->rx_bd)); - /* Create the RxBD ring */ - memset(&(priv->rxbuffers), 0, sizeof(priv->rxbuffers)); + /* Setup for Network Control register, MDIO, Rx and Tx enable */ + setbits_le32(®s->nwctrl, ZYNQ_GEM_NWCTRL_MDEN_MASK); - for (i = 0; i < RX_BUF; i++) { - priv->rx_bd[i].status = 0xF0000000; - priv->rx_bd[i].addr = (u32)((char *) &(priv->rxbuffers) + - (i * PKTSIZE_ALIGN)); + priv->init++; } - /* WRAP bit to last BD */ - priv->rx_bd[--i].addr |= ZYNQ_GEM_RXBUF_WRAP_MASK; - /* Write RxBDs to IP */ - writel((u32) &(priv->rx_bd), ®s->rxqbase); - /* MAC Setup */ - /* Setup Network Configuration register */ - writel(ZYNQ_GEM_NWCFG_INIT, ®s->nwcfg); - - /* Setup for DMA Configuration register */ - writel(ZYNQ_GEM_DMACR_INIT, ®s->dmacr); - - /* Setup for Network Control register, MDIO, Rx and Tx enable */ - setbits_le32(®s->nwctrl, ZYNQ_GEM_NWCTRL_MDEN_MASK | - ZYNQ_GEM_NWCTRL_RXEN_MASK | ZYNQ_GEM_NWCTRL_TXEN_MASK); + phy_detection(dev); /* interface - look at tsec */ phydev = phy_connect(priv->bus, priv->phyaddr, dev, 0); - phydev->supported &= supported; + phydev->supported = supported | ADVERTISED_Pause | + ADVERTISED_Asym_Pause; phydev->advertising = phydev->supported; priv->phydev = phydev; phy_config(phydev); phy_startup(phydev); + switch (phydev->speed) { + case SPEED_1000: + writel(ZYNQ_GEM_NWCFG_INIT | ZYNQ_GEM_NWCFG_SPEED1000, + ®s->nwcfg); + rclk = (0 << 4) | (1 << 0); + clk = (1 << 20) | (8 << 8) | (0 << 4) | (1 << 0); + break; + case SPEED_100: + clrsetbits_le32(®s->nwcfg, ZYNQ_GEM_NWCFG_SPEED1000, + ZYNQ_GEM_NWCFG_INIT | ZYNQ_GEM_NWCFG_SPEED100); + rclk = 1 << 0; + clk = (5 << 20) | (8 << 8) | (0 << 4) | (1 << 0); + break; + case SPEED_10: + rclk = 1 << 0; + /* FIXME untested */ + clk = (5 << 20) | (8 << 8) | (0 << 4) | (1 << 0); + break; + } + + /* Change the rclk and clk only not using EMIO interface */ + if (!priv->emio) + zynq_slcr_gem_clk_setup(dev->iobase != + ZYNQ_GEM_BASEADDR0, rclk, clk); + + setbits_le32(®s->nwctrl, ZYNQ_GEM_NWCTRL_RXEN_MASK | + ZYNQ_GEM_NWCTRL_TXEN_MASK); + return 0; } @@ -307,11 +394,10 @@ static int zynq_gem_send(struct eth_device *dev, void *ptr, int len) writel((u32)&(priv->tx_bd), ®s->txqbase); /* Setup Tx BD */ - memset((void *) &(priv->tx_bd), 0, sizeof(struct emac_bd)); + memset((void *)&(priv->tx_bd), 0, sizeof(struct emac_bd)); priv->tx_bd.addr = (u32)ptr; - priv->tx_bd.status = len | ZYNQ_GEM_TXBUF_LAST_MASK | - ZYNQ_GEM_TXBUF_WRAP_MASK; + priv->tx_bd.status = len | ZYNQ_GEM_TXBUF_LAST_MASK; /* Start transmit */ setbits_le32(®s->nwctrl, ZYNQ_GEM_NWCTRL_STARTTX_MASK); @@ -364,19 +450,17 @@ static int zynq_gem_recv(struct eth_device *dev) if ((++priv->rxbd_current) >= RX_BUF) priv->rxbd_current = 0; - - return frame_len; } - return 0; + return frame_len; } static void zynq_gem_halt(struct eth_device *dev) { struct zynq_gem_regs *regs = (struct zynq_gem_regs *)dev->iobase; - /* Disable the receiver & transmitter */ - writel(0, ®s->nwctrl); + clrsetbits_le32(®s->nwctrl, ZYNQ_GEM_NWCTRL_RXEN_MASK | + ZYNQ_GEM_NWCTRL_TXEN_MASK, 0); } static int zynq_gem_miiphyread(const char *devname, uchar addr, @@ -399,7 +483,7 @@ static int zynq_gem_miiphy_write(const char *devname, uchar addr, return phywrite(dev, addr, reg, val); } -int zynq_gem_initialize(bd_t *bis, int base_addr) +int zynq_gem_initialize(bd_t *bis, int base_addr, int phy_addr, u32 emio) { struct eth_device *dev; struct zynq_gem_priv *priv; @@ -415,11 +499,8 @@ int zynq_gem_initialize(bd_t *bis, int base_addr) } priv = dev->priv; -#ifdef CONFIG_PHY_ADDR - priv->phyaddr = CONFIG_PHY_ADDR; -#else - priv->phyaddr = -1; -#endif + priv->phyaddr = phy_addr; + priv->emio = emio; sprintf(dev->name, "Gem.%x", base_addr); diff --git a/drivers/tpm/Makefile b/drivers/tpm/Makefile index be11c8b595..e8c159c0f3 100644 --- a/drivers/tpm/Makefile +++ b/drivers/tpm/Makefile @@ -23,7 +23,11 @@ include $(TOPDIR)/config.mk LIB := $(obj)libtpm.o +$(shell mkdir -p $(obj)slb9635_i2c) + COBJS-$(CONFIG_GENERIC_LPC_TPM) = generic_lpc_tpm.o +COBJS-$(CONFIG_INFINEON_TPM_I2C) += tis_i2c.o slb9635_i2c/tpm.o +COBJS-$(CONFIG_INFINEON_TPM_I2C) += slb9635_i2c/tpm_tis_i2c.o COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/tpm/generic_lpc_tpm.c b/drivers/tpm/generic_lpc_tpm.c index 6c494eb98a..04ad418973 100644 --- a/drivers/tpm/generic_lpc_tpm.c +++ b/drivers/tpm/generic_lpc_tpm.c @@ -135,7 +135,7 @@ static u8 tpm_read_byte(const u8 *ptr) { u8 ret = readb(ptr); debug(PREFIX "Read reg 0x%4.4x returns 0x%2.2x\n", - (u32)ptr - (u32)lpc_tpm_dev, ret); + (u32)(uintptr_t)ptr - (u32)(uintptr_t)lpc_tpm_dev, ret); return ret; } @@ -143,21 +143,21 @@ static u32 tpm_read_word(const u32 *ptr) { u32 ret = readl(ptr); debug(PREFIX "Read reg 0x%4.4x returns 0x%8.8x\n", - (u32)ptr - (u32)lpc_tpm_dev, ret); + (u32)(uintptr_t)ptr - (u32)(uintptr_t)lpc_tpm_dev, ret); return ret; } static void tpm_write_byte(u8 value, u8 *ptr) { debug(PREFIX "Write reg 0x%4.4x with 0x%2.2x\n", - (u32)ptr - (u32)lpc_tpm_dev, value); + (u32)(uintptr_t)ptr - (u32)(uintptr_t)lpc_tpm_dev, value); writeb(value, ptr); } static void tpm_write_word(u32 value, u32 *ptr) { debug(PREFIX "Write reg 0x%4.4x with 0x%8.8x\n", - (u32)ptr - (u32)lpc_tpm_dev, value); + (u32)(uintptr_t)ptr - (u32)(uintptr_t)lpc_tpm_dev, value); writel(value, ptr); } @@ -491,5 +491,5 @@ int tis_sendrecv(const u8 *sendbuf, size_t send_size, return TPM_DRIVER_ERR; } - return tis_readresponse(recvbuf, recv_len); + return tis_readresponse(recvbuf, (u32 *)recv_len); } diff --git a/drivers/tpm/slb9635_i2c/compatibility.h b/drivers/tpm/slb9635_i2c/compatibility.h new file mode 100644 index 0000000000..62dc9fa964 --- /dev/null +++ b/drivers/tpm/slb9635_i2c/compatibility.h @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2011 Infineon Technologies + * + * Authors: + * Peter Huewe <huewe.external@infineon.com> + * + * Version: 2.1.1 + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _COMPATIBILITY_H_ +#define _COMPATIBILITY_H_ + +/* all includes from U-Boot */ +#include <linux/types.h> +#include <linux/unaligned/be_byteshift.h> +#include <asm-generic/errno.h> +#include <compiler.h> +#include <common.h> + +/* extended error numbers from linux (see errno.h) */ +#define ECANCELED 125 /* Operation Canceled */ + +#define msleep(t) udelay((t)*1000) + +/* Timer frequency. Corresponds to msec timer resolution*/ +#define HZ 1000 + +#define dev_dbg(dev, format, arg...) debug(format, ##arg) +#define dev_err(dev, format, arg...) printf(format, ##arg) +#define dev_info(dev, format, arg...) debug(format, ##arg) +#define dbg_printf debug + +#endif diff --git a/drivers/tpm/slb9635_i2c/tpm.c b/drivers/tpm/slb9635_i2c/tpm.c new file mode 100644 index 0000000000..496c48e8cf --- /dev/null +++ b/drivers/tpm/slb9635_i2c/tpm.c @@ -0,0 +1,453 @@ +/* + * Copyright (C) 2011 Infineon Technologies + * + * Authors: + * Peter Huewe <huewe.external@infineon.com> + * + * Description: + * Device driver for TCG/TCPA TPM (trusted platform module). + * Specifications at www.trustedcomputinggroup.org + * + * It is based on the Linux kernel driver tpm.c from Leendert van + * Dorn, Dave Safford, Reiner Sailer, and Kyleen Hall. + * + * Version: 2.1.1 + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation, version 2 of the + * License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <malloc.h> +#include "tpm.h" + +/* global structure for tpm chip data */ +struct tpm_chip g_chip; + +enum tpm_duration { + TPM_SHORT = 0, + TPM_MEDIUM = 1, + TPM_LONG = 2, + TPM_UNDEFINED, +}; + +#define TPM_MAX_ORDINAL 243 +#define TPM_MAX_PROTECTED_ORDINAL 12 +#define TPM_PROTECTED_ORDINAL_MASK 0xFF + +/* + * Array with one entry per ordinal defining the maximum amount + * of time the chip could take to return the result. The ordinal + * designation of short, medium or long is defined in a table in + * TCG Specification TPM Main Part 2 TPM Structures Section 17. The + * values of the SHORT, MEDIUM, and LONG durations are retrieved + * from the chip during initialization with a call to tpm_get_timeouts. + */ +static const u8 tpm_protected_ordinal_duration[TPM_MAX_PROTECTED_ORDINAL] = { + TPM_UNDEFINED, /* 0 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 5 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 10 */ + TPM_SHORT, +}; + +static const u8 tpm_ordinal_duration[TPM_MAX_ORDINAL] = { + TPM_UNDEFINED, /* 0 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 5 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 10 */ + TPM_SHORT, + TPM_MEDIUM, + TPM_LONG, + TPM_LONG, + TPM_MEDIUM, /* 15 */ + TPM_SHORT, + TPM_SHORT, + TPM_MEDIUM, + TPM_LONG, + TPM_SHORT, /* 20 */ + TPM_SHORT, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_SHORT, /* 25 */ + TPM_SHORT, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_MEDIUM, /* 30 */ + TPM_LONG, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, /* 35 */ + TPM_MEDIUM, + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_MEDIUM, /* 40 */ + TPM_LONG, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, /* 45 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_LONG, + TPM_MEDIUM, /* 50 */ + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 55 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_MEDIUM, /* 60 */ + TPM_MEDIUM, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_MEDIUM, /* 65 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 70 */ + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 75 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_LONG, /* 80 */ + TPM_UNDEFINED, + TPM_MEDIUM, + TPM_LONG, + TPM_SHORT, + TPM_UNDEFINED, /* 85 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 90 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, /* 95 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_MEDIUM, /* 100 */ + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 105 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 110 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, /* 115 */ + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_LONG, /* 120 */ + TPM_LONG, + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_SHORT, + TPM_SHORT, /* 125 */ + TPM_SHORT, + TPM_LONG, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, /* 130 */ + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_SHORT, + TPM_MEDIUM, + TPM_UNDEFINED, /* 135 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 140 */ + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 145 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 150 */ + TPM_MEDIUM, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, /* 155 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 160 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 165 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_LONG, /* 170 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 175 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_MEDIUM, /* 180 */ + TPM_SHORT, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_MEDIUM, /* 185 */ + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 190 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 195 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 200 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, + TPM_SHORT, /* 205 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_MEDIUM, /* 210 */ + TPM_UNDEFINED, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_UNDEFINED, /* 215 */ + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, + TPM_SHORT, /* 220 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, /* 225 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 230 */ + TPM_LONG, + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 235 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 240 */ + TPM_UNDEFINED, + TPM_MEDIUM, +}; + +/* + * Returns max number of milliseconds to wait + */ +unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal) +{ + int duration_idx = TPM_UNDEFINED; + int duration = 0; + + if (ordinal < TPM_MAX_ORDINAL) + duration_idx = tpm_ordinal_duration[ordinal]; + else if ((ordinal & TPM_PROTECTED_ORDINAL_MASK) < + TPM_MAX_PROTECTED_ORDINAL) + duration_idx = + tpm_protected_ordinal_duration[ordinal & + TPM_PROTECTED_ORDINAL_MASK]; + + if (duration_idx != TPM_UNDEFINED) + duration = chip->vendor.duration[duration_idx]; + if (duration <= 0) + return 2 * 60 * HZ; /*two minutes timeout*/ + else + return duration; +} + +#define TPM_CMD_COUNT_BYTE 2 +#define TPM_CMD_ORDINAL_BYTE 6 + +ssize_t tpm_transmit(const unsigned char *buf, size_t bufsiz) +{ + ssize_t rc; + u32 count, ordinal; + unsigned long start, stop; + + struct tpm_chip *chip = &g_chip; + + /* switch endianess: big->little */ + count = get_unaligned_be32(buf + TPM_CMD_COUNT_BYTE); + ordinal = get_unaligned_be32(buf + TPM_CMD_ORDINAL_BYTE); + + if (count == 0) { + dev_err(chip->dev, "no data\n"); + return -ENODATA; + } + if (count > bufsiz) { + dev_err(chip->dev, + "invalid count value %x %zx\n", count, bufsiz); + return -E2BIG; + } + + rc = chip->vendor.send(chip, (u8 *)buf, count); + if (rc < 0) { + dev_err(chip->dev, "tpm_transmit: tpm_send: error %zd\n", rc); + goto out; + } + + if (chip->vendor.irq) + goto out_recv; + + start = get_timer(0); + stop = tpm_calc_ordinal_duration(chip, ordinal); + do { + dbg_printf("waiting for status...\n"); + u8 status = chip->vendor.status(chip); + if ((status & chip->vendor.req_complete_mask) == + chip->vendor.req_complete_val) { + dbg_printf("...got it;\n"); + goto out_recv; + } + + if ((status == chip->vendor.req_canceled)) { + dev_err(chip->dev, "Operation Canceled\n"); + rc = -ECANCELED; + goto out; + } + msleep(TPM_TIMEOUT); + } while (get_timer(start) < stop); + + chip->vendor.cancel(chip); + dev_err(chip->dev, "Operation Timed out\n"); + rc = -ETIME; + goto out; + +out_recv: + + dbg_printf("out_recv: reading response...\n"); + rc = chip->vendor.recv(chip, (u8 *)buf, TPM_BUFSIZE); + if (rc < 0) + dev_err(chip->dev, "tpm_transmit: tpm_recv: error %zd\n", rc); +out: + return rc; +} + +#define TPM_ERROR_SIZE 10 + +enum tpm_capabilities { + TPM_CAP_PROP = cpu_to_be32(5), +}; + +enum tpm_sub_capabilities { + TPM_CAP_PROP_TIS_TIMEOUT = cpu_to_be32(0x115), + TPM_CAP_PROP_TIS_DURATION = cpu_to_be32(0x120), +}; + +struct tpm_chip *tpm_register_hardware(const struct tpm_vendor_specific *entry) +{ + struct tpm_chip *chip; + + /* Driver specific per-device data */ + chip = &g_chip; + memcpy(&chip->vendor, entry, sizeof(struct tpm_vendor_specific)); + chip->is_open = 1; + + return chip; +} + +int tpm_open(uint32_t dev_addr) +{ + int rc; + if (g_chip.is_open) + return -EBUSY; + rc = tpm_vendor_init(dev_addr); + if (rc < 0) + g_chip.is_open = 0; + return rc; +} + +void tpm_close(void) +{ + if (g_chip.is_open) { + tpm_vendor_cleanup(&g_chip); + g_chip.is_open = 0; + } +} diff --git a/drivers/tpm/slb9635_i2c/tpm.h b/drivers/tpm/slb9635_i2c/tpm.h new file mode 100644 index 0000000000..9ddee865df --- /dev/null +++ b/drivers/tpm/slb9635_i2c/tpm.h @@ -0,0 +1,161 @@ +/* + * Copyright (C) 2011 Infineon Technologies + * + * Authors: + * Peter Huewe <huewe.external@infineon.com> + * + * Version: 2.1.1 + * + * Description: + * Device driver for TCG/TCPA TPM (trusted platform module). + * Specifications at www.trustedcomputinggroup.org + * + * It is based on the Linux kernel driver tpm.c from Leendert van + * Dorn, Dave Safford, Reiner Sailer, and Kyleen Hall. + * + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation, version 2 of the + * License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _TPM_H_ +#define _TPM_H_ + +#include <linux/compiler.h> + +#include "compatibility.h" + +enum tpm_timeout { + TPM_TIMEOUT = 5, /* msecs */ +}; + +/* Size of external transmit buffer (used in tpm_transmit)*/ +#define TPM_BUFSIZE 4096 + +/* Index of fields in TPM command buffer */ +#define TPM_CMD_SIZE_BYTE 2 +#define TPM_CMD_ORDINAL_BYTE 6 + +/* Index of Count field in TPM response buffer */ +#define TPM_RSP_SIZE_BYTE 2 +#define TPM_RSP_RC_BYTE 6 + +struct tpm_chip; + +struct tpm_vendor_specific { + const u8 req_complete_mask; + const u8 req_complete_val; + const u8 req_canceled; + int irq; + int (*recv) (struct tpm_chip *, u8 *, size_t); + int (*send) (struct tpm_chip *, u8 *, size_t); + void (*cancel) (struct tpm_chip *); + u8(*status) (struct tpm_chip *); + int locality; + unsigned long timeout_a, timeout_b, timeout_c, timeout_d; /* msec */ + unsigned long duration[3]; /* msec */ +}; + +struct tpm_chip { + int is_open; + struct tpm_vendor_specific vendor; +}; + +struct tpm_input_header { + __be16 tag; + __be32 length; + __be32 ordinal; +} __packed; + +struct tpm_output_header { + __be16 tag; + __be32 length; + __be32 return_code; +} __packed; + +struct timeout_t { + __be32 a; + __be32 b; + __be32 c; + __be32 d; +} __packed; + +struct duration_t { + __be32 tpm_short; + __be32 tpm_medium; + __be32 tpm_long; +} __packed; + +union cap_t { + struct timeout_t timeout; + struct duration_t duration; +}; + +struct tpm_getcap_params_in { + __be32 cap; + __be32 subcap_size; + __be32 subcap; +} __packed; + +struct tpm_getcap_params_out { + __be32 cap_size; + union cap_t cap; +} __packed; + +union tpm_cmd_header { + struct tpm_input_header in; + struct tpm_output_header out; +}; + +union tpm_cmd_params { + struct tpm_getcap_params_out getcap_out; + struct tpm_getcap_params_in getcap_in; +}; + +struct tpm_cmd_t { + union tpm_cmd_header header; + union tpm_cmd_params params; +} __packed; + + +/* ---------- Interface for TPM vendor ------------ */ + +extern struct tpm_chip *tpm_register_hardware( + const struct tpm_vendor_specific *); + +extern int tpm_vendor_init(uint32_t dev_addr); + +extern void tpm_vendor_cleanup(struct tpm_chip *chip); + +/* ---------- Interface for TDDL ------------------- */ + +/* + * if dev_addr != 0 - redefines TPM device address + * Returns < 0 on error, 0 on success. + */ +extern int tpm_open(uint32_t dev_addr); + +extern void tpm_close(void); + +/* + * Transmit bufsiz bytes out of buf to TPM and get results back in buf, too. + * Returns < 0 on error, 0 on success. + */ +extern ssize_t tpm_transmit(const unsigned char *buf, size_t bufsiz); + +#endif diff --git a/drivers/tpm/slb9635_i2c/tpm_tis_i2c.c b/drivers/tpm/slb9635_i2c/tpm_tis_i2c.c new file mode 100644 index 0000000000..82a41bf5b2 --- /dev/null +++ b/drivers/tpm/slb9635_i2c/tpm_tis_i2c.c @@ -0,0 +1,561 @@ +/* + * Copyright (C) 2011 Infineon Technologies + * + * Authors: + * Peter Huewe <huewe.external@infineon.com> + * + * Description: + * Device driver for TCG/TCPA TPM (trusted platform module). + * Specifications at www.trustedcomputinggroup.org + * + * This device driver implements the TPM interface as defined in + * the TCG TPM Interface Spec version 1.2, revision 1.0 and the + * Infineon I2C Protocol Stack Specification v0.20. + * + * It is based on the Linux kernel driver tpm.c from Leendert van + * Dorn, Dave Safford, Reiner Sailer, and Kyleen Hall. + * + * Version: 2.1.1 + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation, version 2 of the + * License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <i2c.h> +#include <linux/types.h> + +#include "compatibility.h" +#include "tpm.h" + +/* max. buffer size supported by our tpm */ +#ifdef TPM_BUFSIZE +#undef TPM_BUFSIZE +#endif +#define TPM_BUFSIZE 1260 +/* Address of the TPM on the I2C bus */ +#define TPM_I2C_ADDR 0x20 +/* max. number of iterations after i2c NAK */ +#define MAX_COUNT 3 + +#define SLEEP_DURATION 60 /*in usec*/ + +/* max. number of iterations after i2c NAK for 'long' commands + * we need this especially for sending TPM_READY, since the cleanup after the + * transtion to the ready state may take some time, but it is unpredictable + * how long it will take. + */ +#define MAX_COUNT_LONG 50 + +#define SLEEP_DURATION_LONG 210 /* in usec */ + +/* expected value for DIDVID register */ +#define TPM_TIS_I2C_DID_VID 0x000b15d1L + +/* Structure to store I2C TPM specific stuff */ +struct tpm_inf_dev { + uint addr; + u8 buf[TPM_BUFSIZE + sizeof(u8)]; /* max. buffer size + addr */ +}; + +static struct tpm_inf_dev tpm_dev = { + .addr = TPM_I2C_ADDR +}; + +/* + * iic_tpm_read() - read from TPM register + * @addr: register address to read from + * @buffer: provided by caller + * @len: number of bytes to read + * + * Read len bytes from TPM register and put them into + * buffer (little-endian format, i.e. first byte is put into buffer[0]). + * + * NOTE: TPM is big-endian for multi-byte values. Multi-byte + * values have to be swapped. + * + * Return -EIO on error, 0 on success. + */ +int iic_tpm_read(u8 addr, u8 *buffer, size_t len) +{ + int rc; + int count; + uint myaddr = addr; + /* we have to use uint here, uchar hangs the board */ + + for (count = 0; count < MAX_COUNT; count++) { + rc = i2c_write(tpm_dev.addr, 0, 0, (uchar *)&myaddr, 1); + if (rc == 0) + break; /*success, break to skip sleep*/ + + udelay(SLEEP_DURATION); + } + + if (rc) + return -rc; + + /* After the TPM has successfully received the register address it needs + * some time, thus we're sleeping here again, before retrieving the data + */ + for (count = 0; count < MAX_COUNT; count++) { + udelay(SLEEP_DURATION); + rc = i2c_read(tpm_dev.addr, 0, 0, buffer, len); + if (rc == 0) + break; /*success, break to skip sleep*/ + } + + if (rc) + return -rc; + + return 0; +} + +static int iic_tpm_write_generic(u8 addr, u8 *buffer, size_t len, + unsigned int sleep_time, + u8 max_count) +{ + int rc = 0; + int count; + + /* prepare send buffer */ + tpm_dev.buf[0] = addr; + memcpy(&(tpm_dev.buf[1]), buffer, len); + + for (count = 0; count < max_count; count++) { + rc = i2c_write(tpm_dev.addr, 0, 0, tpm_dev.buf, len + 1); + if (rc == 0) + break; /*success, break to skip sleep*/ + + udelay(sleep_time); + } + + if (rc) + return -rc; + + return 0; +} + +/* + * iic_tpm_write() - write to TPM register + * @addr: register address to write to + * @buffer: containing data to be written + * @len: number of bytes to write + * + * Write len bytes from provided buffer to TPM register (little + * endian format, i.e. buffer[0] is written as first byte). + * + * NOTE: TPM is big-endian for multi-byte values. Multi-byte + * values have to be swapped. + * + * NOTE: use this function instead of the iic_tpm_write_generic function. + * + * Return -EIO on error, 0 on success + */ +static int iic_tpm_write(u8 addr, u8 *buffer, size_t len) +{ + return iic_tpm_write_generic(addr, buffer, len, SLEEP_DURATION, + MAX_COUNT); +} + +/* + * This function is needed especially for the cleanup situation after + * sending TPM_READY + * */ +static int iic_tpm_write_long(u8 addr, u8 *buffer, size_t len) +{ + return iic_tpm_write_generic(addr, buffer, len, SLEEP_DURATION_LONG, + MAX_COUNT_LONG); +} + +#define TPM_HEADER_SIZE 10 + +enum tis_access { + TPM_ACCESS_VALID = 0x80, + TPM_ACCESS_ACTIVE_LOCALITY = 0x20, + TPM_ACCESS_REQUEST_PENDING = 0x04, + TPM_ACCESS_REQUEST_USE = 0x02, +}; + +enum tis_status { + TPM_STS_VALID = 0x80, + TPM_STS_COMMAND_READY = 0x40, + TPM_STS_GO = 0x20, + TPM_STS_DATA_AVAIL = 0x10, + TPM_STS_DATA_EXPECT = 0x08, +}; + +enum tis_defaults { + TIS_SHORT_TIMEOUT = 750, /* ms */ + TIS_LONG_TIMEOUT = 2000, /* 2 sec */ +}; + +#define TPM_ACCESS(l) (0x0000 | ((l) << 4)) +#define TPM_STS(l) (0x0001 | ((l) << 4)) +#define TPM_DATA_FIFO(l) (0x0005 | ((l) << 4)) +#define TPM_DID_VID(l) (0x0006 | ((l) << 4)) + +static int check_locality(struct tpm_chip *chip, int loc) +{ + u8 buf; + int rc; + + rc = iic_tpm_read(TPM_ACCESS(loc), &buf, 1); + if (rc < 0) + return rc; + + if ((buf & (TPM_ACCESS_ACTIVE_LOCALITY | TPM_ACCESS_VALID)) == + (TPM_ACCESS_ACTIVE_LOCALITY | TPM_ACCESS_VALID)) { + chip->vendor.locality = loc; + return loc; + } + + return -1; +} + +static void release_locality(struct tpm_chip *chip, int loc, int force) +{ + u8 buf; + if (iic_tpm_read(TPM_ACCESS(loc), &buf, 1) < 0) + return; + + if (force || (buf & (TPM_ACCESS_REQUEST_PENDING | TPM_ACCESS_VALID)) == + (TPM_ACCESS_REQUEST_PENDING | TPM_ACCESS_VALID)) { + buf = TPM_ACCESS_ACTIVE_LOCALITY; + iic_tpm_write(TPM_ACCESS(loc), &buf, 1); + } +} + +static int request_locality(struct tpm_chip *chip, int loc) +{ + unsigned long start, stop; + u8 buf = TPM_ACCESS_REQUEST_USE; + + if (check_locality(chip, loc) >= 0) + return loc; /* we already have the locality */ + + iic_tpm_write(TPM_ACCESS(loc), &buf, 1); + + /* wait for burstcount */ + start = get_timer(0); + stop = chip->vendor.timeout_a; + do { + if (check_locality(chip, loc) >= 0) + return loc; + msleep(TPM_TIMEOUT); + } while (get_timer(start) < stop); + + return -1; +} + +static u8 tpm_tis_i2c_status(struct tpm_chip *chip) +{ + /* NOTE: since i2c read may fail, return 0 in this case --> time-out */ + u8 buf; + if (iic_tpm_read(TPM_STS(chip->vendor.locality), &buf, 1) < 0) + return 0; + else + return buf; +} + +static void tpm_tis_i2c_ready(struct tpm_chip *chip) +{ + /* this causes the current command to be aborted */ + u8 buf = TPM_STS_COMMAND_READY; + iic_tpm_write_long(TPM_STS(chip->vendor.locality), &buf, 1); +} + +static ssize_t get_burstcount(struct tpm_chip *chip) +{ + unsigned long start, stop; + ssize_t burstcnt; + u8 buf[3]; + + /* wait for burstcount */ + /* which timeout value, spec has 2 answers (c & d) */ + start = get_timer(0); + stop = chip->vendor.timeout_d; + do { + /* Note: STS is little endian */ + if (iic_tpm_read(TPM_STS(chip->vendor.locality) + 1, buf, 3) + < 0) + burstcnt = 0; + else + burstcnt = (buf[2] << 16) + (buf[1] << 8) + buf[0]; + + if (burstcnt) + return burstcnt; + msleep(TPM_TIMEOUT); + } while (get_timer(start) < stop); + + return -EBUSY; +} + +static int wait_for_stat(struct tpm_chip *chip, u8 mask, unsigned long timeout, + int *status) +{ + unsigned long start, stop; + + /* check current status */ + *status = tpm_tis_i2c_status(chip); + if ((*status & mask) == mask) + return 0; + + start = get_timer(0); + stop = timeout; + do { + msleep(TPM_TIMEOUT); + *status = tpm_tis_i2c_status(chip); + if ((*status & mask) == mask) + return 0; + + } while (get_timer(start) < stop); + + return -ETIME; +} + +static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count) +{ + size_t size = 0; + ssize_t burstcnt; + int rc; + + while (size < count) { + burstcnt = get_burstcount(chip); + + /* burstcount < 0 = tpm is busy */ + if (burstcnt < 0) + return burstcnt; + + /* limit received data to max. left */ + if (burstcnt > (count - size)) + burstcnt = count - size; + + rc = iic_tpm_read(TPM_DATA_FIFO(chip->vendor.locality), + &(buf[size]), + burstcnt); + if (rc == 0) + size += burstcnt; + } + + return size; +} + +static int tpm_tis_i2c_recv(struct tpm_chip *chip, u8 *buf, size_t count) +{ + int size = 0; + int expected, status; + + if (count < TPM_HEADER_SIZE) { + size = -EIO; + goto out; + } + + /* read first 10 bytes, including tag, paramsize, and result */ + size = recv_data(chip, buf, TPM_HEADER_SIZE); + if (size < TPM_HEADER_SIZE) { + dev_err(chip->dev, "Unable to read header\n"); + goto out; + } + + expected = get_unaligned_be32(buf + TPM_RSP_SIZE_BYTE); + if ((size_t)expected > count) { + size = -EIO; + goto out; + } + + size += recv_data(chip, &buf[TPM_HEADER_SIZE], + expected - TPM_HEADER_SIZE); + if (size < expected) { + dev_err(chip->dev, "Unable to read remainder of result\n"); + size = -ETIME; + goto out; + } + + wait_for_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c, &status); + if (status & TPM_STS_DATA_AVAIL) { /* retry? */ + dev_err(chip->dev, "Error left over data\n"); + size = -EIO; + goto out; + } + +out: + tpm_tis_i2c_ready(chip); + /* The TPM needs some time to clean up here, + * so we sleep rather than keeping the bus busy + */ + udelay(2000); + release_locality(chip, chip->vendor.locality, 0); + + return size; +} + +static int tpm_tis_i2c_send(struct tpm_chip *chip, u8 *buf, size_t len) +{ + int rc, status; + ssize_t burstcnt; + size_t count = 0; + u8 sts = TPM_STS_GO; + + if (len > TPM_BUFSIZE) + return -E2BIG; /* command is too long for our tpm, sorry */ + + if (request_locality(chip, 0) < 0) + return -EBUSY; + + status = tpm_tis_i2c_status(chip); + if ((status & TPM_STS_COMMAND_READY) == 0) { + tpm_tis_i2c_ready(chip); + if (wait_for_stat + (chip, TPM_STS_COMMAND_READY, + chip->vendor.timeout_b, &status) < 0) { + rc = -ETIME; + goto out_err; + } + } + + while (count < len - 1) { + burstcnt = get_burstcount(chip); + + /* burstcount < 0 = tpm is busy */ + if (burstcnt < 0) + return burstcnt; + + if (burstcnt > (len-1-count)) + burstcnt = len-1-count; + +#ifdef CONFIG_TPM_I2C_BURST_LIMITATION + if (burstcnt > CONFIG_TPM_I2C_BURST_LIMITATION) + burstcnt = CONFIG_TPM_I2C_BURST_LIMITATION; +#endif /* CONFIG_TPM_I2C_BURST_LIMITATION */ + + rc = iic_tpm_write(TPM_DATA_FIFO(chip->vendor.locality), + &(buf[count]), burstcnt); + if (rc == 0) + count += burstcnt; + + wait_for_stat(chip, TPM_STS_VALID, + chip->vendor.timeout_c, &status); + + if ((status & TPM_STS_DATA_EXPECT) == 0) { + rc = -EIO; + goto out_err; + } + } + + /* write last byte */ + iic_tpm_write(TPM_DATA_FIFO(chip->vendor.locality), &(buf[count]), 1); + wait_for_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c, &status); + if ((status & TPM_STS_DATA_EXPECT) != 0) { + rc = -EIO; + goto out_err; + } + + /* go and do it */ + iic_tpm_write(TPM_STS(chip->vendor.locality), &sts, 1); + + return len; +out_err: + tpm_tis_i2c_ready(chip); + /* The TPM needs some time to clean up here, + * so we sleep rather than keeping the bus busy + */ + udelay(2000); + release_locality(chip, chip->vendor.locality, 0); + + return rc; +} + +static struct tpm_vendor_specific tpm_tis_i2c = { + .status = tpm_tis_i2c_status, + .recv = tpm_tis_i2c_recv, + .send = tpm_tis_i2c_send, + .cancel = tpm_tis_i2c_ready, + .req_complete_mask = TPM_STS_DATA_AVAIL | TPM_STS_VALID, + .req_complete_val = TPM_STS_DATA_AVAIL | TPM_STS_VALID, + .req_canceled = TPM_STS_COMMAND_READY, +}; + +/* initialisation of i2c tpm */ + + +int tpm_vendor_init(uint32_t dev_addr) +{ + u32 vendor; + uint old_addr; + int rc = 0; + struct tpm_chip *chip; + + old_addr = tpm_dev.addr; + if (dev_addr != 0) + tpm_dev.addr = dev_addr; + + chip = tpm_register_hardware(&tpm_tis_i2c); + if (chip < 0) { + rc = -ENODEV; + goto out_err; + } + + /* Disable interrupts (not supported) */ + chip->vendor.irq = 0; + + /* Default timeouts */ + chip->vendor.timeout_a = TIS_SHORT_TIMEOUT; + chip->vendor.timeout_b = TIS_LONG_TIMEOUT; + chip->vendor.timeout_c = TIS_SHORT_TIMEOUT; + chip->vendor.timeout_d = TIS_SHORT_TIMEOUT; + + if (request_locality(chip, 0) != 0) { + rc = -ENODEV; + goto out_err; + } + + /* read four bytes from DID_VID register */ + if (iic_tpm_read(TPM_DID_VID(0), (uchar *)&vendor, 4) < 0) { + rc = -EIO; + goto out_release; + } + + /* create DID_VID register value, after swapping to little-endian */ + vendor = be32_to_cpu(vendor); + + if (vendor != TPM_TIS_I2C_DID_VID) { + rc = -ENODEV; + goto out_release; + } + + dev_info(dev, "1.2 TPM (device-id 0x%X)\n", vendor >> 16); + + /* + * A timeout query to TPM can be placed here. + * Standard timeout values are used so far + */ + + return 0; + +out_release: + release_locality(chip, 0, 1); + +out_err: + tpm_dev.addr = old_addr; + return rc; +} + +void tpm_vendor_cleanup(struct tpm_chip *chip) +{ + release_locality(chip, chip->vendor.locality, 1); +} diff --git a/drivers/tpm/tis_i2c.c b/drivers/tpm/tis_i2c.c new file mode 100644 index 0000000000..e818fbaf54 --- /dev/null +++ b/drivers/tpm/tis_i2c.c @@ -0,0 +1,181 @@ +/* + * Copyright (c) 2012 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include <config.h> +#include <common.h> +#include <fdtdec.h> +#include <i2c.h> +#include "slb9635_i2c/tpm.h" + +DECLARE_GLOBAL_DATA_PTR; + +/* TPM configuration */ +struct tpm { + int i2c_bus; + int slave_addr; + char inited; + int old_bus; +} tpm; + + +static int tpm_select(void) +{ + int ret; + + tpm.old_bus = i2c_get_bus_num(); + if (tpm.old_bus != tpm.i2c_bus) { + ret = i2c_set_bus_num(tpm.i2c_bus); + if (ret) { + debug("%s: Fail to set i2c bus %d\n", __func__, + tpm.i2c_bus); + return -1; + } + } + return 0; +} + +static int tpm_deselect(void) +{ + int ret; + + if (tpm.old_bus != i2c_get_bus_num()) { + ret = i2c_set_bus_num(tpm.old_bus); + if (ret) { + debug("%s: Fail to restore i2c bus %d\n", + __func__, tpm.old_bus); + return -1; + } + } + tpm.old_bus = -1; + return 0; +} + +/** + * Decode TPM configuration. + * + * @param dev Returns a configuration of TPM device + * @return 0 if ok, -1 on error + */ +static int tpm_decode_config(struct tpm *dev) +{ +#ifdef CONFIG_OF_CONTROL + const void *blob = gd->fdt_blob; + int node, parent; + int i2c_bus; + + node = fdtdec_next_compatible(blob, 0, COMPAT_INFINEON_SLB9635_TPM); + if (node < 0) { + debug("%s: Node not found\n", __func__); + return -1; + } + parent = fdt_parent_offset(blob, node); + if (parent < 0) { + debug("%s: Cannot find node parent\n", __func__); + return -1; + } + i2c_bus = i2c_get_bus_num_fdt(parent); + if (i2c_bus < 0) + return -1; + dev->i2c_bus = i2c_bus; + dev->slave_addr = fdtdec_get_addr(blob, node, "reg"); +#else + dev->i2c_bus = CONFIG_INFINEON_TPM_I2C_BUS; + dev->slave_addr = CONFIG_INFINEON_TPM_I2C_ADDR; +#endif + return 0; +} + +int tis_init(void) +{ + if (tpm.inited) + return 0; + + if (tpm_decode_config(&tpm)) + return -1; + + if (tpm_select()) + return -1; + + /* + * Probe TPM twice; the first probing might fail because TPM is asleep, + * and the probing can wake up TPM. + */ + if (i2c_probe(tpm.slave_addr) && i2c_probe(tpm.slave_addr)) { + debug("%s: fail to probe i2c addr 0x%x\n", __func__, + tpm.slave_addr); + return -1; + } + + tpm_deselect(); + + tpm.inited = 1; + + return 0; +} + +int tis_open(void) +{ + int rc; + + if (!tpm.inited) + return -1; + + if (tpm_select()) + return -1; + + rc = tpm_open(tpm.slave_addr); + + tpm_deselect(); + + return rc; +} + +int tis_close(void) +{ + if (!tpm.inited) + return -1; + + if (tpm_select()) + return -1; + + tpm_close(); + + tpm_deselect(); + + return 0; +} + +int tis_sendrecv(const uint8_t *sendbuf, size_t sbuf_size, + uint8_t *recvbuf, size_t *rbuf_len) +{ + int len; + uint8_t buf[4096]; + + if (!tpm.inited) + return -1; + + if (sizeof(buf) < sbuf_size) + return -1; + + memcpy(buf, sendbuf, sbuf_size); + + if (tpm_select()) + return -1; + + len = tpm_transmit(buf, sbuf_size); + + tpm_deselect(); + + if (len < 10) { + *rbuf_len = 0; + return -1; + } + + memcpy(recvbuf, buf, len); + *rbuf_len = len; + + return 0; +} diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c index 4c00081743..71cc0f2a05 100644 --- a/drivers/usb/gadget/pxa27x_udc.c +++ b/drivers/usb/gadget/pxa27x_udc.c @@ -610,7 +610,9 @@ void udc_connect(void) #ifdef CONFIG_USB_DEV_PULLUP_GPIO /* Turn on the USB connection by enabling the pullup resistor */ - set_GPIO_mode(CONFIG_USB_DEV_PULLUP_GPIO | GPIO_OUT); + writel(readl(GPDR(CONFIG_USB_DEV_PULLUP_GPIO)) + | GPIO_bit(CONFIG_USB_DEV_PULLUP_GPIO), + GPDR(CONFIG_USB_DEV_PULLUP_GPIO)); writel(GPIO_bit(CONFIG_USB_DEV_PULLUP_GPIO), GPSR(CONFIG_USB_DEV_PULLUP_GPIO)); #else /* Host port 2 transceiver D+ pull up enable */ diff --git a/drivers/video/pxa_lcd.c b/drivers/video/pxa_lcd.c index b40ec3689b..5e4c6853cd 100644 --- a/drivers/video/pxa_lcd.c +++ b/drivers/video/pxa_lcd.c @@ -248,6 +248,38 @@ vidinfo_t panel_info = { }; #endif /* CONFIG_ACX517AKN */ +#ifdef CONFIG_ACX544AKN + +# define LCD_BPP LCD_COLOR16 + +/* you have to set lccr0 and lccr3 (including pcd) */ +# define REG_LCCR0 0x003008f9 +# define REG_LCCR3 0x04700007 /* 16bpp */ + +vidinfo_t panel_info = { + .vl_col = 320, + .vl_row = 320, + .vl_width = 320, + .vl_height = 320, + .vl_clkp = CONFIG_SYS_LOW, + .vl_oep = CONFIG_SYS_LOW, + .vl_hsp = CONFIG_SYS_LOW, + .vl_vsp = CONFIG_SYS_LOW, + .vl_dp = CONFIG_SYS_LOW, + .vl_bpix = LCD_BPP, + .vl_lbw = 0, + .vl_splt = 0, + .vl_clor = 1, + .vl_tft = 1, + .vl_hpw = 0x05, + .vl_blw = 0x13, + .vl_elw = 0x08, + .vl_vpw = 0x02, + .vl_bfw = 0x07, + .vl_efw = 0x05, +}; +#endif /* CONFIG_ACX544AKN */ + /*----------------------------------------------------------------------*/ #ifdef CONFIG_LQ038J7DH53 @@ -378,7 +410,7 @@ void lcd_initcolregs (void) #endif /* LCD_MONOCHROME */ /*----------------------------------------------------------------------*/ -void lcd_enable (void) +__weak void lcd_enable(void) { } diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index b1f4e0f03f..13e7c37686 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -32,6 +32,7 @@ COBJS-y += imx_watchdog.o endif COBJS-$(CONFIG_TNETV107X_WATCHDOG) += tnetv107x_wdt.o COBJS-$(CONFIG_S5P) += s5p_wdt.o +COBJS-$(CONFIG_XILINX_TB_WATCHDOG) += xilinx_tb_wdt.o COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/watchdog/xilinx_tb_wdt.c b/drivers/watchdog/xilinx_tb_wdt.c new file mode 100644 index 0000000000..f7c722e7ca --- /dev/null +++ b/drivers/watchdog/xilinx_tb_wdt.c @@ -0,0 +1,87 @@ +/* + * Copyright (c) 2011-2013 Xilinx Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/microblaze_intc.h> +#include <asm/processor.h> +#include <watchdog.h> + +#define XWT_CSR0_WRS_MASK 0x00000008 /* Reset status Mask */ +#define XWT_CSR0_WDS_MASK 0x00000004 /* Timer state Mask */ +#define XWT_CSR0_EWDT1_MASK 0x00000002 /* Enable bit 1 Mask*/ +#define XWT_CSRX_EWDT2_MASK 0x00000001 /* Enable bit 2 Mask */ + +struct watchdog_regs { + u32 twcsr0; /* 0x0 */ + u32 twcsr1; /* 0x4 */ + u32 tbr; /* 0x8 */ +}; + +static struct watchdog_regs *watchdog_base = + (struct watchdog_regs *)CONFIG_WATCHDOG_BASEADDR; + +void hw_watchdog_reset(void) +{ + u32 reg; + + /* Read the current contents of TCSR0 */ + reg = readl(&watchdog_base->twcsr0); + + /* Clear the watchdog WDS bit */ + if (reg & (XWT_CSR0_EWDT1_MASK | XWT_CSRX_EWDT2_MASK)) + writel(reg | XWT_CSR0_WDS_MASK, &watchdog_base->twcsr0); +} + +void hw_watchdog_disable(void) +{ + u32 reg; + + /* Read the current contents of TCSR0 */ + reg = readl(&watchdog_base->twcsr0); + + writel(reg & ~XWT_CSR0_EWDT1_MASK, &watchdog_base->twcsr0); + writel(~XWT_CSRX_EWDT2_MASK, &watchdog_base->twcsr1); + + puts("Watchdog disabled!\n"); +} + +static void hw_watchdog_isr(void *arg) +{ + hw_watchdog_reset(); +} + +int hw_watchdog_init(void) +{ + int ret; + + writel((XWT_CSR0_WRS_MASK | XWT_CSR0_WDS_MASK | XWT_CSR0_EWDT1_MASK), + &watchdog_base->twcsr0); + writel(XWT_CSRX_EWDT2_MASK, &watchdog_base->twcsr1); + + ret = install_interrupt_handler(CONFIG_WATCHDOG_IRQ, + hw_watchdog_isr, NULL); + if (ret) + return 1; + + return 0; +} |