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https://github.com/brain-hackers/u-boot-brain
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c09d29057a
v7_maint_dcache_all() does not work reliable when build with gcc6, see: https://bugzilla.redhat.com/show_bug.cgi?id=1318788 While debugging this I learned that v7_maint_dcache_all() is unreliable when build with gcc5 too when it is marked as noinline. This commit fixes the reliability issues by replacing the C-code with the ready to use asm implementation from the kernel. Given that this code when written as C-code clearly is quite fragile (also see the existing comments about the C-code being the way it is to get optimal assembly) and that we have a proven asm alternative, I believe that this is the best solution. Note that we actually already had a copy of the kernel's v7_flush_dcache_all() before this commit in arch/arm/mach-uniphier/arm32/lowlevel_init.S. This commit moves that code arch/arm/cpu/armv7/cache_v7_asm.S, renames it to __v7_flush_dcache_all(), and adds a v7_flush_dcache_all() wrapper which saves / restores the clobbered registers for use from C-code. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
55 lines
1.4 KiB
Makefile
55 lines
1.4 KiB
Makefile
#
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# (C) Copyright 2000-2003
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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extra-y := start.o
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obj-y += cache_v7.o cache_v7_asm.o
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obj-y += cpu.o cp15.o
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obj-y += syslib.o
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ifneq ($(CONFIG_AM43XX)$(CONFIG_AM33XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX)$(CONFIG_TEGRA)$(CONFIG_MX6)$(CONFIG_MX7)$(CONFIG_TI81XX)$(CONFIG_AT91FAMILY)$(CONFIG_SUNXI)$(CONFIG_ARCH_SOCFPGA),)
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ifneq ($(CONFIG_SKIP_LOWLEVEL_INIT),y)
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obj-y += lowlevel_init.o
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endif
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endif
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ifneq ($(CONFIG_ARMV7_NONSEC),)
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obj-y += nonsec_virt.o
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obj-y += virt-v7.o
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obj-y += virt-dt.o
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endif
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ifneq ($(CONFIG_ARMV7_PSCI),)
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obj-y += psci.o
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endif
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obj-$(CONFIG_IPROC) += iproc-common/
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obj-$(CONFIG_KONA) += kona-common/
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obj-$(CONFIG_OMAP_COMMON) += omap-common/
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obj-$(CONFIG_SYS_ARCH_TIMER) += arch_timer.o
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ifneq (,$(filter s5pc1xx exynos,$(SOC)))
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obj-y += s5p-common/
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endif
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obj-$(if $(filter am33xx,$(SOC)),y) += am33xx/
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obj-$(if $(filter bcm281xx,$(SOC)),y) += bcm281xx/
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obj-$(if $(filter bcmcygnus,$(SOC)),y) += bcmcygnus/
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obj-$(if $(filter bcmnsp,$(SOC)),y) += bcmnsp/
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obj-$(if $(filter ls102xa,$(SOC)),y) += ls102xa/
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obj-$(if $(filter mx5,$(SOC)),y) += mx5/
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obj-$(CONFIG_MX6) += mx6/
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obj-$(CONFIG_MX7) += mx7/
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obj-$(CONFIG_OMAP34XX) += omap3/
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obj-$(CONFIG_OMAP44XX) += omap4/
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obj-$(CONFIG_OMAP54XX) += omap5/
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obj-$(CONFIG_RMOBILE) += rmobile/
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obj-$(if $(filter stv0991,$(SOC)),y) += stv0991/
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obj-$(CONFIG_ARCH_SUNXI) += sunxi/
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obj-$(CONFIG_VF610) += vf610/
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