Rename CACHE_SUPPORT to CACHE

Rename this option so that CONFIG_IS_ENABLED can be used with it.

Oddly there is already an SPL_CACHE option. Drop it in favour of this one.

Drop the special SPL Makefile rule which is now superfluous.

Signed-off-by: Simon Glass <sjg@chromium.org>

common/spl/Kconfig

@@ -495,7 +495,7 @@ config SPL_FIT_IMAGE_TINY
 	  ensure this information is available to the next image
 	  invoked).
 
-config SPL_CACHE_SUPPORT
+config SPL_CACHE
 	bool "Support CACHE drivers"
 	help
 	  Enable CACHE drivers in SPL. These drivers can keep data so that
@@ -808,12 +808,6 @@ config SPL_UBI
 	  README.ubispl for more info.
 
 if SPL_DM
-config SPL_CACHE
-	depends on CACHE
-	bool "Support cache drivers in SPL"
-	help
-	  Enable support for cache drivers in SPL.
-
 config SPL_DM_SPI
 	bool "Support SPI DM drivers in SPL"
 	help

drivers/Makefile

@@ -37,7 +37,6 @@ ifndef CONFIG_TPL_BUILD
 ifdef CONFIG_SPL_BUILD
 
 obj-$(CONFIG_SPL_BOOTCOUNT_LIMIT) += bootcount/
-obj-$(CONFIG_SPL_CACHE_SUPPORT) += cache/
 obj-$(CONFIG_SPL_CPU) += cpu/
 obj-$(CONFIG_SPL_CRYPTO) += crypto/
 obj-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += ddr/fsl/