u-boot.git/arch/mips, branch v2013.04

Merge branch 'master' of git://git.denx.de/u-boot-arm

2013-03-18T18:37:18Z

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

Change stub example to use asm-generic/sections.h

2013-03-15T20:13:58Z

We can use the declarations of __bss_start and _end from this header instead of declaring them locally. Signed-off-by: Simon Glass

Introduce generic link section.h symbol files

2013-03-15T20:13:58Z

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 (version 5) Signed-off-by: Simon Glass

Refactor linker-generated arrays

2013-03-12T22:28:40Z

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

MIPS: board.c: remove manual relocation of env_name_spec

2013-02-15T17:00:04Z

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

MIPS: add dynamic relocation support

2013-02-12T21:22:13Z

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 Signed-off-by: Daniel Schwierzeck

MIPS: u-boot.lds: add relocation specific sections

2013-02-12T21:22:13Z

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 Signed-off-by: Daniel Schwierzeck

MIPS: start.S: use symbol __image_copy_end for U-Boot image relocation

2013-02-12T21:22:13Z

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

MIPS: start.S: optimize BSS initialization

2013-02-12T21:22:13Z

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

MIPS: board.c: switch to new symbols __bss_end and __image_copy_end

2013-02-12T21:22:12Z

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