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* usb: create common header virtual root hub descriptorsStephen Warren2014-03-10-98/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many USB host controller drivers contain almost identical copies of the same virtual root hub descriptors. Put these into a common file to avoid duplication. Note that there were some very minor differences between the descriptors in the various files, such as: - USB 1.0 vs. USB 1.1 - Manufacturer/Device ID - Max packet size - String content I assume these aren't relevant. Cc: Thomas Lange <thomas@corelatus.se> Cc: Shinya Kuribayashi <skuribay@pobox.com> Cc: Gary Jennejohn <garyj@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Eric Millbrandt <emillbrandt@coldhaus.com> Cc: Pierre Aubert <p.aubert@staubli.com> Cc: Stefan Roese <sr@denx.de> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Denis Peter <d.peter@mpl.ch> Cc: Rodolfo Giometti <giometti@linux.it> Cc: Zhang Wei <wei.zhang@freescale.com> Cc: Mateusz Zalega <m.zalega@samsung.com> Cc: Remy Bohmer <linux@bohmer.net> Cc: Markus Klotzbuecher <mk@denx.de> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Gary Jennejohn <garyj@denx.de> Cc: C Nauman <cnauman@diagraph.com> Cc: David Müller <d.mueller@elsoft.ch> Cc: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Cc: Thomas Abraham <t-abraham@ti.com> Cc: Tom Rini <trini@ti.com> Cc: Andrew Murray <amurray@embedded-bits.co.uk> Cc: Matej Frančeškin <matej.franceskin@comtrade.com> Cc: Cliff Cai <cliff.cai@analog.com> Cc: Bryan Wu <cooloney@gmail.com> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
* mips: move CONFIG_MIPS{32, 64} definition to config.mkMasahiro Yamada2014-03-07-6/+2
| | | | | | | | | | | | | | All mips32 boards define CONFIG_MIPS32 in config headers except malta boards which define it in boards.cfg. We can consolidate them by defining it in arch/mips/cpu/mips32/config.mk. CONFIG_MIPS64 definition can be moved to arch/mips/cpu/mips64/config.mk as well. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Acked-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* config.mk: specify the exact path to standalone linker scriptMasahiro Yamada2014-03-07-3/+6
| | | | | | | | | | | We want to change the build system to include config.mk only from ./Makefile and spl/Makefile. We must prepare for that in this commit. $(src) is a moving target and not handy for our purpose. We must replace it with a fixed path. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kbuild: change out-of-tree buildMasahiro Yamada2014-02-19-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit changes the working directory where the build process occurs. Before this commit, build process occurred under the source tree for both in-tree and out-of-tree build. That's why we needed to add $(obj) prefix to all generated files in makefiles like follows: $(obj)u-boot.bin: $(obj)u-boot Here, $(obj) is empty for in-tree build, whereas it points to the output directory for out-of-tree build. And our old build system changes the current working directory with "make -C <sub-dir>" syntax when descending into the sub-directories. On the other hand, Kbuild uses a different idea to handle out-of-tree build and directory descending. The build process of Kbuild always occurs under the output tree. When "O=dir/to/store/output/files" is given, the build system changes the current working directory to that directory and restarts the make. Kbuild uses "make -f $(srctree)/scripts/Makefile.build obj=<sub-dir>" syntax for descending into sub-directories. (We can write it like "make $(obj)=<sub-dir>" with a shorthand.) This means the current working directory is always the top of the output directory. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de>
* qemu-malta: rename to just "malta"Paul Burton2013-11-09-1/+1
| | | | | | | | | This is in preparation for adapting this board to function correctly on a physical MIPS Malta board. The board is moved into an "imgtec" vendor directory at the same time in order to ready us for any other boards supported by Imagination in the future. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
* mips32: detect L1 cache sizes if they're not definedPaul Burton2013-11-09-19/+144
| | | | | | | | | | | | | | | | For boards such as the MIPS Malta with an FPGA core card it is desirable to be able to detect the L1 cache sizes at runtime, since they are not dependant upon the board but on the FPGA bitstream in use. This patch performs that detection when the CONFIG_SYS_[DI]CACHE_SIZE macros are not defined by the board configuration. In cases where the sizes are detected this patch also removes the restriction that the I-cache & D-cache line sizes must be the same, as this is not necessarily true. If the cache sizes are defined by a configuration then they will be hardcoded as before, so this patch will not add overhead to such boards. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
* mips: convert makefiles to Kbuild styleMasahiro Yamada2013-10-31-119/+11
| | | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
* usb: add enum usb_init_type parameter to usb_lowlevel_initTroy Kisky2013-10-20-1/+1
| | | | | | This parameter will later be used to verify OTG ports. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
* Coding Style cleanup: remove trailing white spaceWolfgang Denk2013-10-14-1/+1
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* MIPS: mips32/cache.S: use v1 register for indirect function callsGabor Juhos2013-07-24-4/+4
| | | | | | | | Synchronize the code with mips64/cache.S, in order to allow further unifications. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
* MIPS: mips32/cache.S: store cache line size in t8 registerGabor Juhos2013-07-24-3/+3
| | | | | | | | Synchronize the code with mips64/cache.S, in order to allow further unifications. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
* MIPS: mips32/cache.S: save return address in t9 registerGabor Juhos2013-07-24-1/+1
| | | | | | | | Synchronize the code with mips64/cache.S, in order to allow further unifications. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
* MIPS: xburst/start.S: rework relocation info checkGabor Juhos2013-07-24-3/+3
| | | | | | | | 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>
* MIPS: xburst/start.S: use t8 register for dynamic relocationGabor Juhos2013-07-24-9/+9
| | | | | | | | 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>
* MIPS: xburst/start.S: save gd in s0 registerGabor Juhos2013-07-24-1/+2
| | | | | | | | 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>
* MIPS: xburst/start.S: save relocation offset in s1 registerGabor Juhos2013-07-24-6/+6
| | | | | | | | 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>
* MIPS: xburst/start.S: save relocation address in s2 registerGabor Juhos2013-07-24-3/+5
| | | | | | | | 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>
* MIPS: mips32/start.S: rework relocation info checkGabor Juhos2013-07-24-3/+3
| | | | | | | | 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>
* MIPS: mips32/start.S: use t8 register for dynamic relocationGabor Juhos2013-07-24-9/+9
| | | | | | | | 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>
* MIPS: mips32/cache.S: remove superfluous register assignmentGabor Juhos2013-07-24-2/+1
| | | | | | | | | | | | 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>
* MIPS: mips64/interrupt.c: remove superfluous includeGabor Juhos2013-07-24-1/+0
| | | | | | | Nothing is used from asm/mipsregs.h. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
* MIPS: mips32/time.c: fix checkpatch errors/warningsGabor Juhos2013-07-24-2/+3
| | | | | | | | | | | | | 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>
* MIPS: start.S: emulate REVISION register for qemu-maltaGabor Juhos2013-07-24-1/+7
| | | | | | | | | | | | | | | 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>
* MIPS: mips64: fix typos in copyright text of start.STom Rini2013-07-24-1/+1
| | | | | | | | | | | 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>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-537/+32
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* Refactor linker-generated arraysAlbert ARIBAUD2013-03-12-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* MIPS: add dynamic relocation supportGabor Juhos2013-02-12-0/+92
| | | | | | | | | | | | | | | | | | | | | | 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>
* MIPS: u-boot.lds: add relocation specific sectionsGabor Juhos2013-02-12-1/+41
| | | | | | | | | | | | | | 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>
* MIPS: start.S: use symbol __image_copy_end for U-Boot image relocationDaniel Schwierzeck2013-02-12-16/+9
| | | | | | | | | 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>
* MIPS: start.S: optimize BSS initializationDaniel Schwierzeck2013-02-12-28/+35
| | | | | | | | | | | | 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>
* MIPS: u-boot.lds: introduce symbol __image_copy_endDaniel Schwierzeck2013-02-12-0/+2
| | | | | | | 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>
* MIPS: u-boot.lds: merge all BSS sections and introduce symbols __bss_[start|end]Daniel Schwierzeck2013-02-12-5/+6
| | | | | | | 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>
* MIPS: compute num_got_entries from .got section's sizeGabor Juhos2013-02-12-4/+2
| | | | | | | | | | | | 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>
* MIPS: start.S: unify and simplify reset vector handlingDaniel Schwierzeck2013-02-12-176/+57
| | | | | | Adopt reset vector handling from Yamon. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: start.S: remove obsolete 64 bit handling in setup_c0_statusDaniel Schwierzeck2013-02-12-9/+1
| | | | Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: xburst: fix broken access to global_dataDaniel Schwierzeck2013-02-12-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* arm: Move lastinc to arch_global_dataSimon Glass2013-02-01-6/+6
| | | | | | Move this field into arch_global_data and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
* arm: Move tbl to arch_global_dataSimon Glass2013-02-01-6/+6
| | | | | | Move this field into arch_global_data and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
* MIPS: add unified u-boot.lds fileGabor Juhos2013-01-31-0/+84
| | | | | | | | | | | | 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>
* MIPS: remove OUTPUT_FORMAT from linker scriptsGabor Juhos2013-01-30-0/+12
| | | | | | | | | | | | | | | | 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>
* MIPS: xburst: simplify relocation offset calculationGabor Juhos2013-01-30-9/+3
| | | | | | | | | | | | | | | | | | 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>
* MIPS: simplify relocated _G_O_T_ address calculationGabor Juhos2013-01-30-12/+3
| | | | | | | | | | | | | | | 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>
* MIPS: start.S: don't save flush_cache parameters in advanceGabor Juhos2013-01-27-20/+4
| | | | | | | | | | | | | | | | 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>
* MIPS: start.S: simplify relocation offset calculationGabor Juhos2013-01-27-18/+6
| | | | | | | | | | | | | | | | | 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>
* MIPS: start.S: save reused arguments earlier in relocate_codeGabor Juhos2013-01-27-4/+6
| | | | | | | | | 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>
* MIPS: start.S: set sp register directlyGabor Juhos2013-01-27-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* MIPS: start.S: fix boundary check in relocate_codeGabor Juhos2013-01-27-3/+3
| | | | | | | | | | | | | 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>
* MIPS: start{, 64}.S: fill branch delay slots with NOP instructionsGabor Juhos2013-01-22-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* MIPS: fix a latent bug on initialize $gpZhi-zhou Zhang2012-12-08-1/+6
| | | | | | | | | 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>
* Merge branch 'master' of git://git.denx.de/u-boot-mipsTom Rini2012-11-27-2/+0
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