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u-boot/arch/microblaze/config.mk

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
# SPDX-License-Identifier: GPL-2.0+
* Patch by Yasushi Shoji, 07 Apr 2004: - add support for microblaze processors - add support for AtmarkTechno "suzaku" board
2004-04-18 21:13:41 +00:00
#
microblaze: clean microblaze_config.mk FLAGS are generated by U-BOOT generator. Board specific FLAGS are in board directory Signed-off-by: Michal Simek <monstr@monstr.eu>
2008-03-28 10:58:45 +00:00
# (C) Copyright 2007-2008 Michal Simek
# Michal SIMEK <monstr@monstr.eu>
* Patch by Yasushi Shoji, 07 Apr 2004: - add support for microblaze processors - add support for AtmarkTechno "suzaku" board
2004-04-18 21:13:41 +00:00
#
microblaze: clean microblaze_config.mk FLAGS are generated by U-BOOT generator. Board specific FLAGS are in board directory Signed-off-by: Michal Simek <monstr@monstr.eu>
2008-03-28 10:58:45 +00:00
# (C) Copyright 2004 Atmark Techno, Inc.
* Patch by Yasushi Shoji, 07 Apr 2004: - add support for microblaze processors - add support for AtmarkTechno "suzaku" board
2004-04-18 21:13:41 +00:00
# Yasushi SHOJI <yashi@atmark-techno.com>
[Microblaze][PATCH] part 2 timer support interrupt controller support flash support ethernet support cache support board information support env support booting image support adding support for Xilinx ML401
2007-03-11 12:48:24 +00:00
PLATFORM_CPPFLAGS += -ffixed-r31 -D__microblaze__
microblaze: Enable GCC garbage collector for full U-Boot GCC's garbage collector works for Microblaze for quite a long time but none has enabled it. The same change has be done for example by commit fac4790491f6 ("arc: Eliminate unused code and data with GCC's garbage collector"). Before: text data bss dec hex filename 588760 33592 39192 661544 a1828 u-boot After: text data bss dec hex filename 504504 32164 38608 575276 8c72c u-boot Which saves almost 15% of memory footprint. Also group symbols/functions to proper section. Reported-by: Tom Rini <trini@konsulko.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-11-04 13:01:45 +00:00
PLATFORM_CPPFLAGS += -fdata-sections -ffunction-sections
LDFLAGS_FINAL += --gc-sections
microblaze: Move architecture to use generic board init Compile code with -fPIC to get GOT. Do not build SPL with fPIC because it increasing SPL size for nothing. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-05-08 14:08:44 +00:00
ifeq ($(CONFIG_SPL_BUILD),)
PLATFORM_CPPFLAGS += -fPIC
microblaze: Add support for run time relocation Microblaze is using NEEDS_MANUAL_RELOC from the beginnging. This is causing issues with function pointer arrays which need to be updated manually after relocation. Building code with -fPIC and linking with -pic will remove this limitation and there is no longer need to run manual update. By default still old option is enabled but by disabling NEEDS_MANUAL_RELOC code will be compiled for full relocation. The patch does couple of things which are connected to each other. - Define STATIC_RELA dependency to call relocate-rela to fill sections. - REMAKE_ELF was already enabled but u-boot file can't be used because sections are empty. relocate-rela will fill them and output file is u-boot.elf which should be used. - Add support for full relocation (u-boot.elf) - Add support for early relocation when u-boot.bin is loaded to different address then CONFIG_SYS_TEXT_BASE - Add rela.dyn and dynsym sections Disabling NEEDS_MANUAL_RELOC U-Boot size increased by 10% of it's original size (550kB to 608kB). Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/a845670b34925859b2e321875f7588a29f6655f9.1655299267.git.michal.simek@amd.com
2022-06-24 12:15:01 +00:00
LDFLAGS_u-boot += -pic
endif
microblaze: Enable REMAKE_ELF Enable u-boot.elf recreation from u-boot.bin to prepare for removing manul relocation. Enable option for big endian configuration but it is not used too much that's why it is completely untested. By supporting this system there is a need to define LITTLE/BIG endian Kconfig options to pass -EL/-EB flags. Full command line for u-boot.elf recreation looks like this: microblazeel-xilinx-linux-gnu-objcopy -I binary -B microblaze \ -O elf32-microblazeel u-boot.bin u-boot-elf.o Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/7e242a519fcd1c693b9103c5599b515af555ca43.1655299267.git.michal.simek@amd.com
2022-06-24 12:14:59 +00:00
ifeq ($(CONFIG_SYS_LITTLE_ENDIAN),y)
PLATFORM_ELFFLAGS += -B microblaze $(OBJCOPYFLAGS) -O elf32-microblazeel
else
PLATFORM_ELFFLAGS += -B microblaze $(OBJCOPYFLAGS) -O elf32-microblaze
endif
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