/* * (C) Copyright 2001 * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net * * (C) Copyright 2001 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * 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 */ /* * board/config.h - configuration options, board specific */ #ifndef __CONFIG_H #define __CONFIG_H /* * High Level Configuration Options * (easy to change) */ #define CONFIG_MPC823 1 /* This is a MPC823 CPU */ #define CONFIG_NX823 1 /* ...on a NEXUS 823 module */ /*#define CONFIG_VIDEO 1 */ #define CONFIG_8xx_GCLK_FREQ MPC8XX_SPEED #define CONFIG_8xx_CONS_SMC1 1 /* Console is on SMC1 */ #undef CONFIG_8xx_CONS_SMC2 #undef CONFIG_8xx_CONS_NONE #define CONFIG_BAUDRATE 57600 /* console baudrate = 115kbps */ #define CONFIG_BOOTDELAY 2 /* autoboot after 2 seconds */ #define CONFIG_BOOTARGS "ramdisk_size=8000 "\ "root=/dev/nfs rw nfsroot=10.77.77.250:/ppcroot "\ "nfsaddrs=10.77.77.20:10.77.77.250" #define CONFIG_BOOTCOMMAND "bootm 400e0000" #define CONFIG_LOADS_ECHO 1 /* echo on for serial download */ #undef CFG_LOADS_BAUD_CHANGE /* don't allow baudrate change */ #undef CONFIG_WATCHDOG /* watchdog disabled, for now */ #define CONFIG_AUTOSCRIPT /* * BOOTP options */ #define CONFIG_BOOTP_SUBNETMASK #define CONFIG_BOOTP_GATEWAY #define CONFIG_BOOTP_HOSTNAME #define CONFIG_BOOTP_BOOTPATH #define CONFIG_BOOTP_BOOTFILESIZE /* * Command line configuration. */ #include #define CONFIG_CMD_AUTOSCRIPT /* call various generic functions */ #define CONFIG_MISC_INIT_R /* * Miscellaneous configurable options */ #define CFG_LONGHELP /* undef to save memory */ #define CFG_PROMPT "=> " /* Monitor Command Prompt */ #if defined(CONFIG_CMD_KGDB) #define CFG_CBSIZE 1024 /* Console I/O Buffer Size */ #else #define CFG_CBSIZE 256 /* Console I/O Buffer Size */ #endif #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */ #define CFG_MAXARGS 16 /* max number of command args */ #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */ #define CFG_MEMTEST_START 0x0400000 /* memtest works on */ #define CFG_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */ #define CFG_LOAD_ADDR 0x100000 /* default load address */ #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */ #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } /* * Low Level Configuration Settings * (address mappings, register initial values, etc.) * You should know what you are doing if you make changes here. */ /*----------------------------------------------------------------------- * Internal Memory Mapped Register */ #define CFG_IMMR 0xFFF00000 /*----------------------------------------------------------------------- * Definitions for initial stack pointer and data area (in DPRAM) */ #define CFG_INIT_RAM_ADDR CFG_IMMR #define CFG_INIT_RAM_END 0x2F00 /* End of used area in DPRAM */ #define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */ #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET /*----------------------------------------------------------------------- * Start addresses for the final memory configuration * (Set up by the startup code) * Please note that CFG_SDRAM_BASE _must_ start at 0 */ #define CFG_SDRAM_BASE 0x00000000 #define CFG_FLASH_BASE 0x40000000 #define CFG_MONITOR_LEN (128 << 10) /* Reserve 128 kB for Monitor */ #define CFG_MONITOR_BASE CFG_FLASH_BASE #define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */ /* * For booting Linux, the board info and command line data * have to be in the first 8 MB of memory, since this is * the maximum mapped by the Linux kernel during initialization. */ #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */ /*----------------------------------------------------------------------- * FLASH organization */ #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */ #define CFG_MAX_FLASH_SECT 128 /* max number of sectors on one chip */ #define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */ #define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */ #define CONFIG_ENV_IS_IN_FLASH 1 #define xEMBED #ifdef EMBED #define CFG_ENV_SIZE 0x200 /* FIXME How big when embedded?? */ #define CFG_ENV_ADDR CFG_MONITOR_BASE #else #define CFG_ENV_ADDR 0x40020000 /* absolute address for now */ #define CFG_ENV_SIZE 0x20000 /* 8K ouch, this may later be */ #endif #define CFG_FLASH_SN_BASE 0x4001fff0 /* programmer automagically puts */ #define CFG_FLASH_SN_SECTOR 0x40000000 /* a serial number here */ #define CFG_FLASH_SN_BYTES 8 /*----------------------------------------------------------------------- * Cache Configuration */ #define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */ #if defined(CONFIG_CMD_KGDB) #define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */ #endif /*----------------------------------------------------------------------- * SYPCR - System Protection Control 11-9 * SYPCR can only be written once after reset! *----------------------------------------------------------------------- * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze */ #if defined(CONFIG_WATCHDOG) #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \ SYPCR_SWE | SYPCR_SWP) #else #define CFG_SYPCR (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP) #endif /*----------------------------------------------------------------------- * SIUMCR - SIU Module Configuration 12-30 *----------------------------------------------------------------------- * PCMCIA config., multi-function pin tri-state */ #define CFG_SIUMCR (SIUMCR_DBGC00 | SIUMCR_DBPC00) /*----------------------------------------------------------------------- * TBSCR - Time Base Status and Control 12-16 *----------------------------------------------------------------------- * Clear Reference Interrupt Status, Timebase freezing enabled */ #define CFG_TBSCR (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF) /*----------------------------------------------------------------------- * RTCSC - Real-Time Clock Status and Control Register 12-18 *----------------------------------------------------------------------- */ #define CFG_RTCSC (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE) /*----------------------------------------------------------------------- * PISCR - Periodic Interrupt Status and Control 12-23 *----------------------------------------------------------------------- * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled */ #define CFG_PISCR (PISCR_PS | PISCR_PITF) /*----------------------------------------------------------------------- * PLPRCR - PLL, Low-Power, and Reset Control Register 5-7 *----------------------------------------------------------------------- * Reset PLL lock status sticky bit, timer expired status bit and timer * interrupt status bit */ #define MPC8XX_SPEED 66666666L #define MPC8XX_XIN 32768 /* 32.768 kHz crystal */ #define MPC8XX_FACT (MPC8XX_SPEED/MPC8XX_XIN) #define CFG_PLPRCR_MF ((MPC8XX_FACT-1) << PLPRCR_MF_SHIFT) #define CFG_PLPRCR (CFG_PLPRCR_MF | PLPRCR_TEXPS | PLPRCR_TMIST) /*----------------------------------------------------------------------- * SCCR - System Clock and reset Control Register 5-3 *----------------------------------------------------------------------- * Set clock output, timebase and RTC source and divider, * power management and some other internal clocks */ #define SCCR_MASK SCCR_EBDF11 #define CFG_SCCR (SCCR_TBS | \ SCCR_COM00 | SCCR_DFSYNC00 | SCCR_DFBRG00 | \ SCCR_DFNL000 | SCCR_DFNH000 | SCCR_DFLCD000 | \ SCCR_DFALCD00) /*----------------------------------------------------------------------- * *----------------------------------------------------------------------- * */ #define CFG_DER 0 /* * Init Memory Controller: * * BR0 and OR0 (FLASH) */ #define FLASH_BASE0_PRELIM 0x40000000 /* FLASH bank #0 */ /* used to re-map FLASH both when starting from SRAM or FLASH: * restrict access enough to keep SRAM working (if any) * but not too much to meddle with FLASH accesses */ #define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */ #define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */ /* FLASH timing: ACS = 00, TRLX = 0, CSNT = 1, SCY = 8, EHTR = 0 */ #define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV1 | OR_BI | \ OR_SCY_8_CLK ) #define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH) #define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH) #define CFG_BR0_PRELIM ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_16 | BR_V ) /* * BR1/2 and OR1/2 (SDRAM) */ #define SDRAM_BASE1_PRELIM 0x00000000 /* SDRAM bank #0 */ #define SDRAM_BASE2_PRELIM 0x20000000 /* SDRAM bank #1 */ #define SDRAM_MAX_SIZE 0x04000000 /* max 64 MB per bank */ /* SDRAM timing: Multiplexed addresses, drive GPL5 high on first cycle */ #define CFG_OR_TIMING_SDRAM (OR_G5LS | OR_CSNT_SAM) #define CFG_OR1_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM ) #define CFG_BR1_PRELIM ((SDRAM_BASE1_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) #define CFG_OR2_PRELIM CFG_OR1_PRELIM #define CFG_BR2_PRELIM ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V ) /* IO and memory mapped stuff */ #define NX823_IO_OR_AM 0xFFFF0000 /* mask for IO addresses */ #define NX823_IO_BASE 0xFF000000 /* start of IO */ #define GPOUT_OFFSET (3<<16) #define QUART_OFFSET (4<<16) #define VIDAC_OFFSET (5<<16) #define CPLD_OFFSET (6<<16) #define SED1386_OFFSET (7<<16) /* * BR3 and OR3 (general purpose output latches) */ #define GPOUT_BASE (NX823_IO_BASE + GPOUT_OFFSET) #define GPOUT_TIMING (OR_CSNT_SAM | OR_TRLX | OR_BI) #define CFG_OR3_PRELIM (NX823_IO_OR_AM | GPOUT_TIMING) #define CFG_BR3_PRELIM (GPOUT_BASE | BR_V) /* * BR4 and OR4 (QUART) */ #define QUART_BASE (NX823_IO_BASE + QUART_OFFSET) #define QUART_TIMING (OR_ACS_DIV4 | OR_SCY_3_CLK | OR_CSNT_SAM | OR_TRLX) #define CFG_OR4_PRELIM (NX823_IO_OR_AM | QUART_TIMING | OR_BI) #define CFG_BR4_PRELIM (QUART_BASE | BR_PS_8 | BR_V) /* * BR5 and OR5 (Video DAC) */ #define VIDAC_BASE (NX823_IO_BASE + VIDAC_OFFSET) #define VIDAC_TIMING (OR_ACS_DIV4 | OR_SCY_3_CLK | OR_CSNT_SAM | OR_EHTR) #define CFG_OR5_PRELIM (NX823_IO_OR_AM | VIDAC_TIMING | OR_BI) #define CFG_BR5_PRELIM (VIDAC_BASE | BR_PS_8 | BR_V) /* * BR6 and OR6 (CPLD) * FIXME timing not verified for CPLD */ #define CPLD_BASE (NX823_IO_BASE + CPLD_OFFSET) #define CPLD_TIMING (OR_ACS_DIV4 | OR_SCY_3_CLK | OR_CSNT_SAM | OR_EHTR) #define CFG_OR6_PRELIM (NX823_IO_OR_AM | CPLD_TIMING | OR_BI) #define CFG_BR6_PRELIM (CPLD_BASE | BR_PS_8 | BR_V ) /* * BR7 and OR7 (SED1386) * FIXME timing not verified for SED controller */ #define SED1386_BASE 0xF7000000 #define CFG_OR7_PRELIM (0xFF000000 | OR_BI | OR_SETA) #define CFG_BR7_PRELIM (SED1386_BASE | BR_PS_16 | BR_V ) /* * Memory Periodic Timer Prescaler */ /* periodic timer for refresh */ #define CFG_MAMR_PTA 97 /* start with divider for 100 MHz */ /* refresh rate 15.6 us (= 64 ms / 4K = 62.4 / quad bursts) for <= 128 MBit */ #define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */ #define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */ /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit */ #define CFG_MPTPR_2BK_8K MPTPR_PTP_DIV8 /* setting for 2 banks */ #define CFG_MPTPR_1BK_8K MPTPR_PTP_DIV16 /* setting for 1 bank */ /* * MAMR settings for SDRAM */ /* 8 column SDRAM */ #define CFG_MAMR_8COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 | \ MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) /* 9 column SDRAM */ #define CFG_MAMR_9COL ((CFG_MAMR_PTA << MAMR_PTA_SHIFT) | MAMR_PTAE | \ MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \ MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_4X) /* * Internal Definitions * * Boot Flags */ #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */ #define BOOTFLAG_WARM 0x02 /* Software reboot */ #define CONFIG_ENV_OVERWRITE /* allow changes to ethaddr (for now) */ #define CONFIG_ETHADDR 00:10:20:30:40:50 #define CONFIG_IPADDR 10.77.77.20 #define CONFIG_SERVERIP 10.77.77.250 #endif /* __CONFIG_H */