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ARM: cache: Allow SPL to build cache-pl310.c

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Introduce the new Kconfig symbol CONFIG_SPL_SYS_L2_PL310 to allow the
SPL to build cache-pl310.c.

Before this commit, the SPL could enable the PL310 L2 cache [1], but the
cache maintenance functions from cache-pl310.c were only useable for
non-SPL builds.

After enabling the cache one must be able to flush it, too. Thus this
commit allows cache-pl310.c to be included in the SPL build.

[1] See for example arch/arm/mach-imx/cache.c: v7_outer_cache_enable()

Signed-off-by: Philip Oberfichtner <pro@denx.de>
This commit is contained in:
Philip Oberfichtner 2022-08-17 15:07:13 +02:00 committed by Tom Rini
parent 111688839a
commit b6664eace8
2 changed files with 6 additions and 1 deletions
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5
arch/arm/Kconfig
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@ -493,6 +493,11 @@ config SYS_L2_PL310
help
Enable support for ARM PL310 L2 cache controller in U-Boot
config SPL_SYS_L2_PL310
bool "ARM PL310 L2 cache controller in SPL"
help
Enable support for ARM PL310 L2 cache controller in SPL
config SYS_L2CACHE_OFF
bool "L2cache off"
help

2
arch/arm/lib/Makefile
View File

@ -33,7 +33,6 @@ obj-$(CONFIG_OF_LIBFDT) += bootm-fdt.o
obj-$(CONFIG_CMD_BOOTI) += bootm.o image.o
obj-$(CONFIG_CMD_BOOTM) += bootm.o
obj-$(CONFIG_CMD_BOOTZ) += bootm.o zimage.o
obj-$(CONFIG_SYS_L2_PL310) += cache-pl310.o
else
obj-$(CONFIG_$(SPL_TPL_)FRAMEWORK) += spl.o
obj-$(CONFIG_SPL_FRAMEWORK) += zimage.o
@ -46,6 +45,7 @@ else
obj-$(CONFIG_$(SPL_TPL_)USE_ARCH_MEMSET) += memset.o
obj-$(CONFIG_$(SPL_TPL_)USE_ARCH_MEMCPY) += memcpy.o
endif
obj-$(CONFIG_$(SPL_TPL_)SYS_L2_PL310) += cache-pl310.o
obj-$(CONFIG_$(SPL_TPL_)SEMIHOSTING) += semihosting.o
ifneq ($(filter y,$(CONFIG_SAVE_PREV_BL_INITRAMFS_START_ADDR) $(CONFIG_SAVE_PREV_BL_FDT_ADDR)),)