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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 $(64bit-bfd)
MIPS: factor out endianess flag handling to arch config.mk This is CPU independent and should be configured architecture-wide. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2012-08-21 21:27:37 +00:00
endif
kconfig: delete redundant CONFIG_${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 support for generating u-boot.elf Define PLATFORM_ELFFLAGS for MIPS in order to be able to generate u-boot.elf Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2017-04-20 18:36:27 +00:00
PLATFORM_ELFENTRY = "__start"
PLATFORM_ELFFLAGS += -B mips $(OBJCOPYFLAGS)
[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: do not build position-independent executables for SPL SPL binaries are usually linked to a fixed address in SRAM. Furthermore SPL binaries do not need to relocate itself. Thus do not build them as position-independent binaries which helps to largely reduce the size of SPL binaries. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2015-12-19 19:20:47 +00:00
ifdef CONFIG_SPL_BUILD
PF_ABICALLS := -mno-abicalls
PF_PIC := -fno-pic
PF_PIE :=
else
PF_ABICALLS := -mabicalls
PF_PIC := -fpic
PF_PIE := -pie
MIPS: provide a default u-boot-spl.lds Provide a default linker script for SPL binaries. Start address and size of text section and BSS section are configurable. All sections are arranged in a way that only relevant sections are kept in the code section for maximum size reduction. All other sections are kept but moved outside the code section to help with debugging. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Acked-by: Marek Vasut <marex@denx.de>
2016-05-26 13:28:38 +00:00
PF_OBJCOPY := -j .got -j .rel.dyn -j .padding
MIPS: add initial infrastructure for device-tree files Prepare sub-folder for device-tree files. Make support for device-tree on MIPS available in Kbuild/Kconfig. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
2015-12-19 19:20:48 +00:00
PF_OBJCOPY += -j .dtb.init.rodata
MIPS: do not build position-independent executables for SPL SPL binaries are usually linked to a fixed address in SRAM. Furthermore SPL binaries do not need to relocate itself. Thus do not build them as position-independent binaries which helps to largely reduce the size of SPL binaries. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2015-12-19 19:20:47 +00:00
endif
PLATFORM_CPPFLAGS += -G 0 $(PF_ABICALLS) $(PF_PIC)
[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: do not build position-independent executables for SPL SPL binaries are usually linked to a fixed address in SRAM. Furthermore SPL binaries do not need to relocate itself. Thus do not build them as position-independent binaries which helps to largely reduce the size of SPL binaries. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2015-12-19 19:20:47 +00:00
LDFLAGS_FINAL += --gc-sections $(PF_PIE)
MIPS: provide a default u-boot-spl.lds Provide a default linker script for SPL binaries. Start address and size of text section and BSS section are configurable. All sections are arranged in a way that only relevant sections are kept in the code section for maximum size reduction. All other sections are kept but moved outside the code section to help with debugging. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Acked-by: Marek Vasut <marex@denx.de>
2016-05-26 13:28:38 +00:00
OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list
OBJCOPYFLAGS += $(PF_OBJCOPY)
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