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2013-07-24MIPS: xburst/start.S: rework relocation info checkGabor Juhos
Make it similar to the code in mips{32,64}/start.S, in order to allow further unifications. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24MIPS: xburst/start.S: use t8 register for dynamic relocationGabor Juhos
Synchronize the code with mips{32,64}/start.S, in order to allow further unifications. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24MIPS: xburst/start.S: save gd in s0 registerGabor Juhos
Synchronize the code with mips{32,64}/start.S, in order to allow further unifications. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24MIPS: xburst/start.S: save relocation offset in s1 registerGabor Juhos
Synchronize the code with mips{32,64}/start.S, in order to allow further unifications. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24MIPS: xburst/start.S: save relocation address in s2 registerGabor Juhos
Synchronize the code with mips{32,64}/start.S, in order to allow further unifications. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24MIPS: mips32/start.S: rework relocation info checkGabor Juhos
Make it similar to the code in mips64/start.S, in order to allow further unifications. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24MIPS: mips32/start.S: use t8 register for dynamic relocationGabor Juhos
Synchronize the code with mips64/start.S, in order to allow further unifications. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24MIPS: mips32/cache.S: remove superfluous register assignmentGabor Juhos
The t4 register already holds the cache line size, and the value of the register is not changed in mips_init_icache. Get the cache line size value from t4 for mips_init_dcache as well and remove the superfluous assignment of t5 register. Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
2013-07-24MIPS: mips64/interrupt.c: remove superfluous includeGabor Juhos
Nothing is used from asm/mipsregs.h. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24MIPS: mips32/time.c: fix checkpatch errors/warningsGabor Juhos
Checking mips32/time.c with checkpatch.pl shows this: arch/mips/cpu/mips32/time.c:30: WARNING: line over 80 characters arch/mips/cpu/mips32/time.c:57: ERROR: return is not a function, parentheses are not required total: 1 errors, 1 warnings, 0 checks, 85 lines checked Fix the code to make checkpatch.pl happy. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24MIPS: qemu-malta: setup GT64120 registers as done by YAMONGabor Juhos
Move the GT64120 register base to 0x1be00000 and setup PCI BAR registers as done by the original YAMON bootloader. This is needed for running Linux kernel. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24MIPS: qemu-malta: enable flash supportGabor Juhos
Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24MIPS: qemu-malta: add reset supportGabor Juhos
The MIPS Malta board has a SOFTRES register. Writing a magic value into that register initiates a board reset. Use this feature to implement reset support. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24MIPS: qemu-malta: add support for emulated MIPS Malta boardGabor Juhos
Add minimal support for the MIPS Malta CoreLV board emulated by Qemu. The only supported peripherial is the UART. This is enough to boot U-Boot to the command prompt both in little and big endian mode. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24MIPS: start.S: emulate REVISION register for qemu-maltaGabor Juhos
On the origial Malta boards the REVISION register is accessible at the 0x1fc00010 address. The contents of this register gives information about the revision of the Malta and Core Boards. This register is used by the Linux kernel to identify the actual board it is running on. However the register is not emulated properly by Qemu, so put a hardcoded value into the flash to make Linux work. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
2013-07-24MIPS: mips64: fix typos in copyright text of start.STom Rini
Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Conflicts: arch/mips/cpu/mips64/start.S Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-07-16Build arch/$ARCH/lib/bootm.o depending on CONFIG_CMD_BOOTMDirk Eibach
MAKEALL is fine for ppc4xx and mpc85xx. Run checks were done on our controlcenterd hardware. Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-06-08MIPS: asm/errno.h: switch to asm-generic/errno.hDaniel Schwierzeck
This fixes several warnings like In file included from ./u-boot/include/linux/mtd/mtd.h:13:0, from env_onenand.c:37: ./u-boot/build/vct_platinumavc_onenand_small/include2/asm/errno.h:52:0: warning: "ENOMSG" redefined [enabled by default] Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-06-08MIPS: fix __raw_* IO accessorsGabor Juhos
The purpose of the __raw* IO accessors is to provide IO access in native-endian order. However in the current MIPS implementation, the 16 and 32 bit variants of the __raw accessors are swapping the values on big-endian systems if the CONFIG_SWAP_IO_SPACE option is enabled. The patch changes the IO accessor macros to fix this broken behaviour. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
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>
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