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https://github.com/brain-hackers/u-boot-brain
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de39dc7162
arch/arm/Makefile references armv5 for backwards compatibility with older compilers. This patch removes those references to armv5, since by now newer compilers are required which should have armv7 support enabled. The Makefile also also has a list of options for mtune, but the entry for CONFIG_CPU_V7A is empty, so this patch tunes the CPU_V7A architecture to generic-armv7-a. The following size changed apply to omap3_logic using GCC. Stock text data bss dec hex filename 50910 429 67580 118919 1d087 spl/u-boot-spl 540713 22700 327072 890485 d9675 u-boot Without Armv5 text data bss dec hex filename 50916 429 67580 118925 1d08d spl/u-boot-spl 540719 22700 327064 890483 d9673 u-boot mtune=generic-armv7-a text data bss dec hex filename 50932 429 67580 118941 1d09d spl/u-boot-spl 540519 22700 327080 890299 d95bb u-boot Signed-off-by: Adam Ford <aford173@gmail.com>
118 lines
3.6 KiB
Makefile
118 lines
3.6 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0+
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ifeq ($(CONFIG_SPL_BUILD)$(CONFIG_TEGRA),yy)
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CONFIG_CPU_V7A=
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CONFIG_CPU_ARM720T=y
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endif
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# This selects which instruction set is used.
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arch-$(CONFIG_CPU_ARM720T) =-march=armv4
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arch-$(CONFIG_CPU_ARM920T) =-march=armv4t
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arch-$(CONFIG_CPU_ARM926EJS) =-march=armv5te
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arch-$(CONFIG_CPU_ARM946ES) =-march=armv5te
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arch-$(CONFIG_CPU_SA1100) =-march=armv4
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arch-$(CONFIG_CPU_PXA) =
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arch-$(CONFIG_CPU_ARM1136) =-march=armv5
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arch-$(CONFIG_CPU_ARM1176) =-march=armv5t
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arch-$(CONFIG_CPU_V7A) =$(call cc-option, -march=armv7-a, \
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$(call cc-option, -march=armv7))
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arch-$(CONFIG_CPU_V7M) =-march=armv7-m
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arch-$(CONFIG_CPU_V7R) =-march=armv7-r
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arch-$(CONFIG_ARM64) =-march=armv8-a
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# On Tegra systems we must build SPL for the armv4 core on the device
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# but otherwise we can use the value in CONFIG_SYS_ARM_ARCH
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ifeq ($(CONFIG_SPL_BUILD)$(CONFIG_TEGRA),yy)
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arch-y += -D__LINUX_ARM_ARCH__=4
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else
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arch-y += -D__LINUX_ARM_ARCH__=$(CONFIG_SYS_ARM_ARCH)
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endif
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# Evaluate arch cc-option calls now
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arch-y := $(arch-y)
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# This selects how we optimise for the processor.
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tune-$(CONFIG_CPU_ARM720T) =-mtune=arm7tdmi
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tune-$(CONFIG_CPU_ARM920T) =
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tune-$(CONFIG_CPU_ARM926EJS) =
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tune-$(CONFIG_CPU_ARM946ES) =
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tune-$(CONFIG_CPU_SA1100) =-mtune=strongarm1100
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tune-$(CONFIG_CPU_PXA) =-mcpu=xscale
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tune-$(CONFIG_CPU_ARM1136) =
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tune-$(CONFIG_CPU_ARM1176) =
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tune-$(CONFIG_CPU_V7A) =-mtune=generic-armv7-a
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tune-$(CONFIG_CPU_V7R) =
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tune-$(CONFIG_ARM64) =
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# Evaluate tune cc-option calls now
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tune-y := $(tune-y)
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PLATFORM_CPPFLAGS += $(arch-y) $(tune-y)
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# Machine directory name. This list is sorted alphanumerically
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# by CONFIG_* macro name.
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machine-$(CONFIG_ARCH_ASPEED) += aspeed
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machine-$(CONFIG_ARCH_AT91) += at91
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machine-$(CONFIG_ARCH_BCM283X) += bcm283x
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machine-$(CONFIG_ARCH_BCMSTB) += bcmstb
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machine-$(CONFIG_ARCH_DAVINCI) += davinci
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machine-$(CONFIG_ARCH_EXYNOS) += exynos
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machine-$(CONFIG_ARCH_HIGHBANK) += highbank
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machine-$(CONFIG_ARCH_KEYSTONE) += keystone
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# TODO: rename CONFIG_KIRKWOOD -> CONFIG_ARCH_KIRKWOOD
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machine-$(CONFIG_KIRKWOOD) += kirkwood
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machine-$(CONFIG_ARCH_MESON) += meson
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machine-$(CONFIG_ARCH_MVEBU) += mvebu
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# TODO: rename CONFIG_TEGRA -> CONFIG_ARCH_TEGRA
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# TODO: rename CONFIG_ORION5X -> CONFIG_ARCH_ORION5X
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machine-$(CONFIG_ORION5X) += orion5x
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machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2
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machine-$(CONFIG_ARCH_OWL) += owl
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machine-$(CONFIG_ARCH_S5PC1XX) += s5pc1xx
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machine-$(CONFIG_ARCH_SUNXI) += sunxi
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machine-$(CONFIG_ARCH_SNAPDRAGON) += snapdragon
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machine-$(CONFIG_ARCH_SOCFPGA) += socfpga
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machine-$(CONFIG_ARCH_RMOBILE) += rmobile
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machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip
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machine-$(CONFIG_STM32) += stm32
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machine-$(CONFIG_ARCH_STM32MP) += stm32mp
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machine-$(CONFIG_TEGRA) += tegra
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machine-$(CONFIG_ARCH_UNIPHIER) += uniphier
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machine-$(CONFIG_ARCH_ZYNQ) += zynq
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machine-$(CONFIG_ARCH_ZYNQMP_R5) += zynqmp-r5
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machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
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PLATFORM_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs))
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libs-y += $(machdirs)
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head-y := arch/arm/cpu/$(CPU)/start.o
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ifeq ($(CONFIG_SPL_BUILD),y)
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ifneq ($(CONFIG_SPL_START_S_PATH),)
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head-y := $(CONFIG_SPL_START_S_PATH:"%"=%)/start.o
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endif
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endif
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libs-y += arch/arm/cpu/$(CPU)/
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libs-y += arch/arm/cpu/
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libs-y += arch/arm/lib/
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ifeq ($(CONFIG_SPL_BUILD),y)
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ifneq (,$(CONFIG_MX23)$(CONFIG_MX28)$(CONFIG_MX35)$(filter $(SOC), mx25 mx5 mx6 mx7 mx35 mx8m))
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libs-y += arch/arm/mach-imx/
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endif
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else
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ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx7 mx7ulp mx31 mx35 mxs mx8m vf610))
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libs-y += arch/arm/mach-imx/
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endif
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endif
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ifneq (,$(filter $(SOC), kirkwood))
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libs-y += arch/arm/mach-mvebu/
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endif
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# deprecated
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-include $(machdirs)/config.mk
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