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| author | Arthur Heymans <arthur@aheymans.xyz> | 2018-01-07 23:12:49 +0100 |
|---|---|---|
| committer | Arthur Heymans <arthur@aheymans.xyz> | 2018-01-20 16:11:44 +0000 |
| commit | 82aa8338c7485cf0139cc1a451e84d32194070fd (patch) | |
| tree | 29341ebbb3ec28997e41ebad765614f90bfa184e /src/drivers/mrc_cache | |
| parent | 1e931f3e47a24855bd18146ccbaed31273510d6a (diff) | |
| download | coreboot-82aa8338c7485cf0139cc1a451e84d32194070fd.tar.xz | |
drivers/mrc_cache: Always generate an FMAP region
This automatically generates an FMAP region for the MRC_CACHE driver
which is easier to handle than a cbfsfile.
Adds some spaces and more comments to Makefile.inc to improve
readability.
Tested on Thinkpad x200 with some proof of concept patches.
Change-Id: Iaaca36b1123b094ec1bbe5df4fb25660919173ca
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/23150
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/drivers/mrc_cache')
| -rw-r--r-- | src/drivers/mrc_cache/Kconfig | 4 | ||||
| -rw-r--r-- | src/drivers/mrc_cache/Makefile.inc | 21 | ||||
| -rw-r--r-- | src/drivers/mrc_cache/mrc_cache.c | 19 |
3 files changed, 3 insertions, 41 deletions
diff --git a/src/drivers/mrc_cache/Kconfig b/src/drivers/mrc_cache/Kconfig index c367dcec95..543f310e66 100644 --- a/src/drivers/mrc_cache/Kconfig +++ b/src/drivers/mrc_cache/Kconfig @@ -5,10 +5,6 @@ config CACHE_MRC_SETTINGS if CACHE_MRC_SETTINGS -config MRC_SETTINGS_CACHE_BASE - hex - default 0xfffe0000 - config MRC_SETTINGS_CACHE_SIZE hex default 0x10000 diff --git a/src/drivers/mrc_cache/Makefile.inc b/src/drivers/mrc_cache/Makefile.inc index 7c8732fb73..0d226fe89a 100644 --- a/src/drivers/mrc_cache/Makefile.inc +++ b/src/drivers/mrc_cache/Makefile.inc @@ -1,19 +1,2 @@ -ifeq ($(CONFIG_CACHE_MRC_SETTINGS),y) - -romstage-y += mrc_cache.c -ramstage-y += mrc_cache.c - -# Create and add the MRC cache to the cbfs image -ifneq ($(CONFIG_CHROMEOS),y) -$(obj)/mrc.cache: $(obj)/config.h - dd if=/dev/zero count=1 \ - bs=$(shell printf "%d" $(CONFIG_MRC_SETTINGS_CACHE_SIZE) ) | \ - tr '\000' '\377' > $@ - -cbfs-files-y += mrc.cache -mrc.cache-file := $(obj)/mrc.cache -mrc.cache-position := $(CONFIG_MRC_SETTINGS_CACHE_BASE) -mrc.cache-type := mrc_cache -endif # ifneq ($(CONFIG_CHROMEOS),y) - -endif # ifeq ($(CONFIG_CACHE_MRC_SETTINGS),y) +romstage-$(CONFIG_CACHE_MRC_SETTINGS) += mrc_cache.c +ramstage-$(CONFIG_CACHE_MRC_SETTINGS) += mrc_cache.c diff --git a/src/drivers/mrc_cache/mrc_cache.c b/src/drivers/mrc_cache/mrc_cache.c index 9732185646..eec1591ce2 100644 --- a/src/drivers/mrc_cache/mrc_cache.c +++ b/src/drivers/mrc_cache/mrc_cache.c @@ -98,26 +98,9 @@ static const struct cache_region *cache_regions[] = { static int lookup_region_by_name(const char *name, struct region *r) { - /* This assumes memory mapped boot media just under 4GiB. */ - const uint32_t pointer_base_32bit = -CONFIG_ROM_SIZE; - if (fmap_locate_area(name, r) == 0) return 0; - - /* CHROMEOS builds must get their MRC cache from FMAP. */ - if (IS_ENABLED(CONFIG_CHROMEOS)) { - printk(BIOS_ERR, "MRC: Chrome OS lookup failure.\n"); - return -1; - } - - if (!IS_ENABLED(CONFIG_BOOT_DEVICE_MEMORY_MAPPED)) - return -1; - - /* Base is in the form of a pointer. Make it an offset. */ - r->offset = CONFIG_MRC_SETTINGS_CACHE_BASE - pointer_base_32bit; - r->size = CONFIG_MRC_SETTINGS_CACHE_SIZE; - - return 0; + return -1; } static const struct cache_region *lookup_region_type(int type) |