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2013-05-01lib: consolidate hang()Andreas Bießmann
Delete all occurrences of hang() and provide a generic function. Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com> Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net> [trini: Modify check around puts() in hang.c slightly] Signed-off-by: Tom Rini <trini@ti.com>
2013-03-18Merge branch 'master' of git://git.denx.de/u-boot-armTom Rini
Albert's rework of the linker scripts conflicted with Simon's making everyone use __bss_end. We also had a minor conflict over README.scrapyard being added to in mainline and enhanced in u-boot-arm/master with proper formatting. Conflicts: arch/arm/cpu/ixp/u-boot.lds arch/arm/cpu/u-boot.lds arch/arm/lib/Makefile board/actux1/u-boot.lds board/actux2/u-boot.lds board/actux3/u-boot.lds board/dvlhost/u-boot.lds board/freescale/mx31ads/u-boot.lds doc/README.scrapyard include/configs/tegra-common.h Build tested for all of ARM and run-time tested on am335x_evm. Signed-off-by: Tom Rini <trini@ti.com>
2013-03-15Change stub example to use asm-generic/sections.hSimon Glass
We can use the declarations of __bss_start and _end from this header instead of declaring them locally. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-15Introduce generic link section.h symbol filesSimon Glass
We create a separate header file for link symbols defined by the link scripts. It is helpful to have these all in one place and try to make them common across architectures. Since Linux already has a similar file, we bring this in even though many of the symbols there are not relevant to us. Each architecture has its own asm/sections.h where symbols specifc to that architecture can be added. For now everything except AVR32 just includes the generic header. One change is needed in arch/avr32/lib/board.c to make this conversion work. Reviewed-by: Tom Rini <trini@ti.com> (version 5) Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-12Refactor linker-generated arraysAlbert ARIBAUD
Refactor linker-generated array code so that symbols which were previously linker-generated are now compiler- generated. This causes relocation records of type R_ARM_ABS32 to become R_ARM_RELATIVE, which makes code which uses LGA able to run before relocation as well as after. Note: this affects more than ARM targets, as linker- lists span possibly all target architectures, notably PowerPC. Conflicts: arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds arch/arm/cpu/armv7/omap-common/u-boot-spl.lds board/ait/cam_enc_4xx/u-boot-spl.lds board/davinci/da8xxevm/u-boot-spl-da850evm.lds board/davinci/da8xxevm/u-boot-spl-hawk.lds board/vpac270/u-boot-spl.lds Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2013-02-15MIPS: board.c: remove manual relocation of env_name_specDaniel Schwierzeck
Remove the manual relocation of env_name_spec. This has been missed in the previous patch series for introducing dynamic relocation on MIPS. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12MIPS: add dynamic relocation supportGabor Juhos
The code handles relocation entries with the following relocation types only: mips32: R_MIPS_REL32 mips64: R_MIPS_REL+R_MIPS_64 xburst: R_MIPS_REL32 Other relocation entries are skipped without processing. The code must be extended if other relocation types must be supported. Add -pie to LDFLAGS_FINAL to generate the .rel.dyn fixup table, which will be applied to the relocated image before transferring control to it. The CONFIG_NEEDS_MANUAL_RELOC is not needed after the patch, so remove that as well. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12MIPS: u-boot.lds: add relocation specific sectionsGabor Juhos
This section contain the table needed for dynamic relocation. Also provide symbols for the relocation code to access the table. Discard all sections which are not needed in the final ELF binary and U-Boot image. Section .dynsym cannot be discarded or GNU ld crashes otherwise. This section will be stripped by GNU objcpy in a later patch. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12MIPS: start.S: use symbol __image_copy_end for U-Boot image relocationDaniel Schwierzeck
Use the newly introduced symbol __image_copy_end as end address for relocation of U-Boot image. This is needed for dynamic relocation added in later patches. This patch obsoletes the symbols uboot_end and uboot_end_data which are removed. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12MIPS: start.S: optimize BSS initializationDaniel Schwierzeck
Get the start and end address for clearing BSS from the newly introduced symbols __bss_start and __bss_end. After GOT is relocated, those symbols are already pointing to the correct addresses. Also optimize the loop by moving the address incrementation to the delay slot to avoid the initial sub instruction. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12MIPS: board.c: switch to new symbols __bss_end and __image_copy_endDaniel Schwierzeck
Use the newly introduced symbols __image_copy_end and __bss_end for setting up the memory area for the relocated U-Boot. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12MIPS: u-boot.lds: introduce symbol __image_copy_endDaniel Schwierzeck
This symbol is used in later patches as end address for relocation of the U-Boot image into RAM. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12MIPS: u-boot.lds: merge all BSS sections and introduce symbols __bss_[start|end]Daniel Schwierzeck
These symbols are used in later patches for as addresses for clearing the BSS area in the relocated U-Boot image. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12MIPS: compute num_got_entries from .got section's sizeGabor Juhos
The '__got_start' and '__got_end' symbols are used only in the linker script to compute the value of the 'num_got_entries' symbol. Remove the symbols and use the SIZEOF(.got) command to get the size of the .got section. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-02-12MIPS: start.S: unify and simplify reset vector handlingDaniel Schwierzeck
Adopt reset vector handling from Yamon. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12MIPS: start.S: remove obsolete 64 bit handling in setup_c0_statusDaniel Schwierzeck
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-02-12MIPS: xburst: fix broken access to global_dataDaniel Schwierzeck
Fix access to global_data which is broken since commits: commit 035cbe99cd2fd4adf9d7fd95aeebb5f814e37eb9 Author: Simon Glass <sjg@chromium.org> Date: Thu Dec 13 20:49:08 2012 +0000 mips: Move per_clk and dev_clk to arch_global_data Move these field into arch_global_data and tidy up. The other CONFIG_JZSOC fields are used by various architectures, so just remove the #ifdef bracketing for these. Signed-off-by: Simon Glass <sjg@chromium.org> commit 582601da2f90b1850aa19f7820b1623c79b3dac6 Author: Simon Glass <sjg@chromium.org> Date: Thu Dec 13 20:48:35 2012 +0000 arm: Move lastinc to arch_global_data Move this field into arch_global_data and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org> commit 66ee69234795c0596f84b25f06b7fbc2e8ed214c Author: Simon Glass <sjg@chromium.org> Date: Thu Dec 13 20:48:34 2012 +0000 arm: Move tbl to arch_global_data Move this field into arch_global_data and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Cc: Xiangfu Liu <xiangfu@openmobilefree.net>
2013-02-04mips: Use generic global_dataSimon Glass
Move mips over to use generic global_data. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-04mips: Move per_clk and dev_clk to arch_global_dataSimon Glass
Move these field into arch_global_data and tidy up. The other CONFIG_JZSOC fields are used by various architectures, so just remove the #ifdef bracketing for these. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-01arm: Move lastinc to arch_global_dataSimon Glass
Move this field into arch_global_data and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-01arm: Move tbl to arch_global_dataSimon Glass
Move this field into arch_global_data and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-01Add architecture-specific global dataSimon Glass
We plan to move architecture-specific data into a separate structure so that we can make the rest of it common. As a first step, create struct arch_global_data to hold these fields. Initially it is empty. This patch applies to all archs at once. I can split it if this is really a pain. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-01-31MIPS: add unified u-boot.lds fileGabor Juhos
The patch adds an unified linker script file which can be used for all currently supported MIPS targets. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> Cc: Stefan Roese <sr@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Xiangfu Liu <xiangfu@openmobilefree.net> Acked-by: Stefan Roese <sr@denx.de>
2013-01-30MIPS: remove OUTPUT_FORMAT from linker scriptsGabor Juhos
The OUTPUT_FORMAT command in linker scripts was always misused due to some endianess and toolchain problems. Use GCC flags to ensure proper output format, and get rid of the OUTPUT_FORMAT commands in the board specific u-boot.lds files. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> Cc: Stefan Roese <sr@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Xiangfu Liu <xiangfu@openmobilefree.net>
2013-01-30MIPS: xburst: simplify relocation offset calculationGabor Juhos
The current code uses four instructions and a temporary register to calculate the relocation offset and to adjust the gp register. The relocation offset can be calculated directly from the CONFIG_SYS_MONITOR_BASE constant and from the destination address. The resulting offset can be used to adjust the gp pointer. This approach makes the code a bit simpler because it needs two instructions only. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> Cc: Xiangfu Liu <xiangfu@openmobilefree.net>
2013-01-30MIPS: simplify relocated _G_O_T_ address calculationGabor Juhos
The difference between the address of the original and the relocated _GLOBAL_OFFSET_TABLE_ is always the same as the relocation offset. The relocation offset is already computed and it is available in the 's1/t6' register. Use that to adjust the relocated _G_O_T_ address, instead of calculating the offset again from the _gp value. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> Cc: Xiangfu Liu <xiangfu@openmobilefree.net>
2013-01-27MIPS: start.S: don't save flush_cache parameters in advanceGabor Juhos
Saving the parameters in advance unnecessarily complicates the code. The destination address is already saved in the 's2' register, and that register is not clobbered by the copy loop. The size of the copied data can be computed after the copy loop is done. Change the code to compute the size parameter right before calling flush_cache, and set the destination address parameter in the delay slot of the actuall call. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-27MIPS: start.S: simplify relocation offset calculationGabor Juhos
The current code uses four instructions and a temporary register to calculate the relocation offset and to adjust the gp register. The relocation offset can be calculated directly from the CONFIG_SYS_MONITOR_BASE constant and from the destination address. The resulting offset can be used to adjust the gp pointer. This approach makes the code a bit simpler because it needs two instructions only. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-27MIPS: start.S: save reused arguments earlier in relocate_codeGabor Juhos
Save the reused parameters at the beginning of the 'relocate_code' function. This makes the function a bit more readable. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-27MIPS: start.S: set sp register directlyGabor Juhos
The current code uses two instructions to load the stack pointer into the 'sp' register. This results in the following assembly code: 468: 3c088040 lui t0,0x8040 46c: 251d0000 addiu sp,t0,0 The first instuction loads the stack pointer into the 't0' register then the value of the 'sp' register is computed by adding zero to the value of the 't0' register. The same issue present on the 64-bit version as well: 56c: 3c0c8040 lui t0,0x8040 570: 659d0000 daddiu sp,t0,0 Change the code to load the stack pointer directly into the 'sp' register. The generated code is functionally equivalent to the previous version but it is simpler. 32-bit: 468: 3c1d8040 lui sp,0x8040 64-bit: 56c: 3c1d8040 lui sp,0x8040 Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-27MIPS: start.S: fix boundary check in relocate_codeGabor Juhos
The loop code copies more data with one than necessary due to the 'ble' instuction. Use the 'blt' instruction instead to fix that. Due to the lack of suitable hardware the Xburst specific code is compile tested only. However the change is quite obvious. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-22MIPS: start{, 64}.S: fill branch delay slots with NOP instructionsGabor Juhos
The romReserved and romExcHandle handlers are accessed by a branch instruction however the delay slots of those instructions are not filled. Because the start.S uses the 'noreorder' directive, the assembler will not fill the delay slots either, and leads to the following assembly code: 0000056c <romReserved>: 56c: 1000ffff b 56c <romReserved> 00000570 <romExcHandle>: 570: 1000ffff b 570 <romExcHandle> In the resulting code, the second branch instruction is placed into the delay slot of the first branch instruction, which is not allowed on the MIPS architecture. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-22MIPS: convert IO port accessor functions to 'static inline'Gabor Juhos
The currently used 'extern inline' directive causes the following compiler warnings if CONFIG_SWAP_IO_SPACE is defined: <...>/include/asm/io.h:345:1: warning: '__fswab32' is static but used in inline function '__outlc_p' which is not static [enabled by default] <...>/include/asm/io.h:345:1: warning: '__fswab32' is static but used in inline function '__outl_p' which is not static [enabled by default] <...>/include/asm/io.h:345:1: warning: '__fswab32' is static but used in inline function '__outlc' which is not static [enabled by default] <...>/include/asm/io.h:345:1: warning: '__fswab32' is static but used in inline function '__outl' which is not static [enabled by default] <...>/include/asm/io.h:344:1: warning: '__fswab16' is static but used in inline function '__outwc_p' which is not static [enabled by default] <...>/include/asm/io.h:344:1: warning: '__fswab16' is static but used in inline function '__outw_p' which is not static [enabled by default] <...>/include/asm/io.h:344:1: warning: '__fswab16' is static but used in inline function '__outwc' which is not static [enabled by default] <...>/include/asm/io.h:344:1: warning: '__fswab16' is static but used in inline function '__outw' which is not static [enabled by default] <...>/include/asm/io.h:341:1: warning: '__fswab32' is static but used in inline function '__inlc_p' which is not static [enabled by default] <...>/include/asm/io.h:341:1: warning: '__fswab32' is static but used in inline function '__inl_p' which is not static [enabled by default] <...>/include/asm/io.h:341:1: warning: '__fswab32' is static but used in inline function '__inlc' which is not static [enabled by default] <...>/include/asm/io.h:341:1: warning: '__fswab32' is static but used in inline function '__inl' which is not static [enabled by default] <...>/include/asm/io.h:340:1: warning: '__fswab16' is static but used in inline function '__inwc_p' which is not static [enabled by default] <...>/include/asm/io.h:340:1: warning: '__fswab16' is static but used in inline function '__inw_p' which is not static [enabled by default] <...>/include/asm/io.h:340:1: warning: '__fswab16' is static but used in inline function '__inwc' which is not static [enabled by default] <...>/include/asm/io.h:340:1: warning: '__fswab16' is static but used in inline function '__inw' which is not static [enabled by default] Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-22MIPS: use inline directive for __in*s functionsGabor Juhos
All other IO accessor functions are using the 'inline' directive. Use that also for the __in*s to make it consistent with the other variants. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-16MIPS: bootm.c: add support for 'prep' and 'go' subcommandsGabor Juhos
The bootm command supports subcommands since long time however those subcommands are not yet usable on MIPS. The patch is based on the ARM implementation, and it adds support for the 'prep' and 'go' subcommands only. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-16MIPS: bootm.c: separate environment initializationGabor Juhos
Move the environment initialization code into a separate function. This make the code reusable for bootm subcommands. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-16MIPS: bootm.c: separate linux jump codeGabor Juhos
Move the actual jump code into a separate function. This make the code reusable for bootm subcommands. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-01-16MIPS: bootm.c: use debug macro to print debug messageGabor Juhos
The '## Transferring control ...' message is printed only if DEBUG is enabled. Get rid of the 'ifdef DEBUG' statement and use the debug macro instead. Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
2012-12-12mips: serial: Fix busted manual relocationJoe Hershberger
serial_initialize() must be called after relocation to adjust the pointers to putc(), getc(), etc. This is busted ever since the serial driver-model-ification series. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-12-12MIPS: constify mips_io_port_baseDaniel Schwierzeck
mips_io_port_base is exported as 'extern const unsigned long mips_io_port_base;' in arch/mips/include/asm/io.h. Thus make the variable const too. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-12-08MIPS: constify address pointer in test_bit()Daniel Schwierzeck
Fix several warnings when enabling UBIFS on MIPS: In file included from ubifs.h:2137:0, from ubifs.c:26: misc.h: In function 'ubifs_zn_dirty': misc.h:38:2: warning: passing argument 2 of 'test_bit' discards 'const' qualifier from pointer target type [enabled by default] ../include/asm/bitops.h:569:23: note: expected 'volatile void *' but argument is of type 'const long unsigned int *' Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-12-08MIPS: fix a latent bug on initialize $gpZhi-zhou Zhang
If bal is 8 bytes aligned, the _gp will not be 8 bytes aligned. then the following ld insntrustion generates a Adel exception. So here make _gp be always aligned in 8 bytes. Signed-off-by: Zhi-zhou Zhang <zhizhou.zh@gmail.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-11-27Merge branch 'master' of git://git.denx.de/u-boot-mipsTom Rini
2012-11-25MIPS: do not initialize timestamp variable before relocate_codeZhi-zhou Zhang
Because timestamp is declared as `static', we needn't initialize it by writing it a zero. If we do it before relocate_code, we will write into a flash address(0xffffffffbfc0xxxx). Signed-off-by: Zhi-zhou Zhang <zhizhou.zh@gmail.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-11-20usb: use linux/usb/ch9.h instead of usbdescriptors.hIlya Yanok
Linux usb/ch9.h seems to have all the same information (and more) as usbdescriptors.h so use the former instead of the later one. As a consequense of this change USB_SPEED_* values don't correspond directly to EHCI speed encoding anymore, I've added necessary recoding in EHCI driver. Also there is no point to put speed into pipe anymore so it's removed and a bunch of host drivers fixed to look at usb_device->speed instead. Old usbdescriptors.h included is not removed as it seems to be used by old USB device code. This makes usb.h and usbdevice.h incompatible. Fortunately the only place that tries to include both are the old MUSB code and it needs usb.h only for USB_DMA_MINALIGN used in aligned attribute on musb_regs structure but this attribute seems to be unneeded (old MUSB code doesn't support any DMA at all). Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
2012-10-22common: Convert the U-Boot commands to LG-arraysMarek Vasut
This patch converts the old method of creating a list of command onto the new LG-arrays code. The old u_boot_cmd section is converted to new u_boot_list_cmd subsection and LG-array macros used as needed. Minor adjustments had to be made to the common code to work with the LG-array macros, mostly the fixup_cmdtable() calls are now passed the ll_entry_start and ll_entry_count instead of linker-generated symbols. The command.c had to be adjusted as well so it would use the newly introduced LG-array API instead of directly using linker-generated symbols. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Joe Hershberger <joe.hershberger@gmail.com> Cc: Mike Frysinger <vapier@gentoo.org>
2012-10-19mips: Change global data baudrate to intSimon Glass
This doesn't need to be a long, so change it. Also adjust bi_baudrate to be unsigned. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@ti.com>
2012-10-17Merge branch 'master' of git://git.denx.de/u-boot-mipsTom Rini
2012-10-17split AU1X00 specific code from cmd_ide.cPavel Herrmann
move special case of ide_swap_read() for AU1X00 SoC into SoC-specific directory. Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com>
2012-10-17serial: Use default_serial_puts() in driversMarek Vasut
Replace the in-place ad-hoc implementation of serial_puts() within the drivers with default_serial_puts() call. This cuts down on the code duplication quite a bit. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Tom Rini <trini@ti.com>
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