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u-boot/arch/mips/config.mk

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* Add support for 16 MB flash configuration of TRAB board * Patch by Erwin Rol, 27 Feb 2003: Add support for RTEMS * Add image information to README * Fix dual PCMCIA slot support (when running with just one slot populated) * Add VFD type detection to trab board * extend drivers/cs8900.c driver to synchronize ethaddr environment variable with value in the EEPROM * Start adding MIPS support files
2003-02-28 00:49:47 +00:00
#
# (C) Copyright 2003
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-07-08 07:37:19 +00:00
# SPDX-License-Identifier: GPL-2.0+
* Add support for 16 MB flash configuration of TRAB board * Patch by Erwin Rol, 27 Feb 2003: Add support for RTEMS * Add image information to README * Fix dual PCMCIA slot support (when running with just one slot populated) * Add VFD type detection to trab board * extend drivers/cs8900.c driver to synchronize ethaddr environment variable with value in the EEPROM * Start adding MIPS support files
2003-02-28 00:49:47 +00:00
#
MIPS: refactor setting of compiler options Refactor and unify all compiler settings in arch/mips/config.mk. Also add tune flags for each supported CPU type. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2014-10-26 13:16:23 +00:00
ifdef CONFIG_SYS_BIG_ENDIAN
32bit-emul := elf32btsmip
64bit-emul := elf64btsmip
32bit-bfd := elf32-tradbigmips
64bit-bfd := elf64-tradbigmips
PLATFORM_CPPFLAGS += -EB
PLATFORM_LDFLAGS += -EB
kbuild: fix CROSS_COMPILE settings in config.mk The syntax CROSS_COMIPLE ?= <cross_compiler_prefix> does not work because config.mk is parsed after exporting CROSS_COMPILE. Like Linux Kernel's arch/$(ARCH)/Makefile, we must write as follows: ifeq ($(CROSS_COMPILE),) CROSS_COMPILE := <cross_compiler_prefix> endif Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-28 05:33:30 +00:00
endif
push CROSS_COMPILE out to $(ARCH)_config.mk Each arch should handle setting a proper default CROSS_COMPILE value in their own config.mk file rather than having to maintain a large ugly list in the Makefile. By using conditional assignment, we don't have to worry about the variable already being set (env/cmdline/etc...). The common config.mk file takes care of exporting CROSS_COMPILE already, and while a few variables (toolchain ones) utilize CROSS_COMPILE before including the arch config.mk, they do so with deferred assignment. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-15 03:33:14 +00:00
MIPS: refactor setting of compiler options Refactor and unify all compiler settings in arch/mips/config.mk. Also add tune flags for each supported CPU type. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2014-10-26 13:16:23 +00:00
ifdef CONFIG_SYS_LITTLE_ENDIAN
32bit-emul := elf32ltsmip
64bit-emul := elf64ltsmip
32bit-bfd := elf32-tradlittlemips
64bit-bfd := elf64-tradlittlemips
PLATFORM_CPPFLAGS += -EL
PLATFORM_LDFLAGS += -EL
MIPS: factor out endianess flag handling to arch config.mk This is CPU independent and should be configured architecture-wide. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-08-21 21:27:37 +00:00
endif
MIPS: refactor setting of compiler options Refactor and unify all compiler settings in arch/mips/config.mk. Also add tune flags for each supported CPU type. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2014-10-26 13:16:23 +00:00
ifdef CONFIG_32BIT
PLATFORM_CPPFLAGS += -mabi=32
PLATFORM_LDFLAGS += -m $(32bit-emul)
OBJCOPYFLAGS += -O $(32bit-bfd)
MIPS: factor out endianess flag handling to arch config.mk This is CPU independent and should be configured architecture-wide. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-08-21 21:27:37 +00:00
endif
MIPS: refactor setting of compiler options Refactor and unify all compiler settings in arch/mips/config.mk. Also add tune flags for each supported CPU type. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2014-10-26 13:16:23 +00:00
ifdef CONFIG_64BIT
PLATFORM_CPPFLAGS += -mabi=64
PLATFORM_LDFLAGS += -m$(64bit-emul)
OBJCOPYFLAGS += -O $(64bit-bfd)
MIPS: factor out endianess flag handling to arch config.mk This is CPU independent and should be configured architecture-wide. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-08-21 21:27:37 +00:00
endif
MIPS: refactor setting of compiler options Refactor and unify all compiler settings in arch/mips/config.mk. Also add tune flags for each supported CPU type. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2014-10-26 13:16:23 +00:00
cpuflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,-mips32
cpuflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,-mips32r2
cpuflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,-mips64
cpuflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,-mips64r2
PLATFORM_CPPFLAGS += $(cpuflags-y)
MIPS: factor out endianess flag handling to arch config.mk This is CPU independent and should be configured architecture-wide. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-08-21 21:27:37 +00:00
kconfig: delete redundant CONFIG_${ARCH} definition CONFIG_${ARCH} is defined by Kconfig. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2014-07-30 05:08:23 +00:00
PLATFORM_CPPFLAGS += -D__MIPS__
[MIPS] Add PIC-related switches to PLATFORM_{CPP,LD}FLAGS and cleanup Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
2007-10-21 12:30:42 +00:00
MIPS: allow use of generic board This patch allows MIPS boards to make use of generic board, replacing arch/mips/lib/board.c with common/board_{f,r}.c and struct bd_info with the asm-generic version. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
2014-04-07 09:11:22 +00:00
__HAVE_ARCH_GENERIC_BOARD := y
[MIPS] Add PIC-related switches to PLATFORM_{CPP,LD}FLAGS and cleanup Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
2007-10-21 12:30:42 +00:00
#
# From Linux arch/mips/Makefile
#
# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
# code since it only slows down the whole thing. At some point we might make
# use of global pointer optimizations but their use of $28 conflicts with
# the current pointer optimization.
#
# The DECStation requires an ECOFF kernel for remote booting, other MIPS
# machines may also. Since BFD is incredibly buggy with respect to
# crossformat linking we rely on the elf2ecoff tool for format conversion.
#
# cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
# cflags-y += -msoft-float
# LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
# MODFLAGS += -mlong-calls
#
[MIPS] mips_config.mk: Misc fixes - Kill redundant `-pipe' (this will be added by $(TOPDIR)/config.mk) - Modify comments Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
2008-06-05 13:29:00 +00:00
# On the other hand, we want PIC in the U-Boot code to relocate it from ROM
# to RAM. $28 is always used as gp.
[MIPS] Add PIC-related switches to PLATFORM_{CPP,LD}FLAGS and cleanup Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
2007-10-21 12:30:42 +00:00
#
MIPS: refactor setting of compiler options Refactor and unify all compiler settings in arch/mips/config.mk. Also add tune flags for each supported CPU type. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2014-10-26 13:16:23 +00:00
PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic
[MIPS] Add PIC-related switches to PLATFORM_{CPP,LD}FLAGS and cleanup Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
2007-10-21 12:30:42 +00:00
PLATFORM_CPPFLAGS += -msoft-float
MIPS: refactor setting of compiler options Refactor and unify all compiler settings in arch/mips/config.mk. Also add tune flags for each supported CPU type. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2014-10-26 13:16:23 +00:00
PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib
MIPS: Introduce --gc-sections for MIPS All architectures but MIPS are using --gc-sections on final linking. This patch introduces that feature for MIPS to reduce the memory and flash footprint. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Stefan Roese <sr@denx.de> Cc: Thomas Lange <thomas@corelatus.se> Cc: Vlad Lungu <vlad.lungu@windriver.com> Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
2011-04-15 15:16:44 +00:00
PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
MIPS: add dynamic relocation support 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>
2013-02-12 21:22:13 +00:00
LDFLAGS_FINAL += --gc-sections -pie
MIPS: always keep all sections in u-boot ELF binary. Always keep all sections in u-boot ELF binary. Move all unneeded sections after _end to avoid allocating space in the final binary. Also remove .deadcode section which is now obsolete. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2013-10-11 15:46:59 +00:00
OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .got
MIPS: add .padding section to linker script Commit 79fd7e649e287228a1445820a72f7dd33baedb96 MIPS: always keep all sections in u-boot ELF binary. Always keep all sections in u-boot ELF binary. Move all unneeded sections after _end to avoid allocating space in the final binary. Also remove .deadcode section which is now obsolete. removed section .deadcode because the original symptoms were not visible anymore. Unfortuneatly the binutils bug still exists. The size of .rel.dyn section is often bigger than needed for all entries. But objcopy only allocates space as much as required for all reloc entries. Thus there is a gap between the last entry and __rel_dyn_end in u-boot.bin. If u-boot is booted from RAM (e.g. in SPL scenarios) that area could contain garbage data which could lead to CPU exceptions during relocation. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2014-10-29 16:30:36 +00:00
OBJCOPYFLAGS += -j .u_boot_list -j .rel.dyn -j .padding
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