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fmap: new API using region_device

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Instead of being pointer based use the region infrastrucutre.
Additionally, this removes the need for arch-specific compilation
paths. The users of the new API can use the region APIs to memory
map or read the region provided by the new fmap API.

Change-Id: Ie36e9ff9cb554234ec394b921f029eeed6845aee
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9170
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Aaron Durbin
2015-03-28 23:56:22 -05:00
parent b6981c0f9c
commit 0424c95a6d
16 changed files with 293 additions and 147 deletions
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29
src/northbridge/intel/sandybridge/mrccache.c
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@ -22,6 +22,7 @@
#include <bootstate.h>
#include <console/console.h>
#include <cbfs.h>
#include <fmap.h>
#include <ip_checksum.h>
#include <device/device.h>
#include <cbmem.h>
@ -29,9 +30,6 @@
#include "sandybridge.h"
#include <spi-generic.h>
#include <spi_flash.h>
#if CONFIG_CHROMEOS
#include <vendorcode/google/chromeos/fmap.h>
#endif
/* convert a pointer to flash area into the offset inside the flash */
static inline u32 to_flash_offset(struct spi_flash *flash, void *p) {
@ -66,17 +64,22 @@ static int is_mrc_cache(struct mrc_data_container *mrc_cache)
*/
static u32 get_mrc_cache_region(struct mrc_data_container **mrc_region_ptr)
{
#if CONFIG_CHROMEOS
return find_fmap_entry("RW_MRC_CACHE", (void **)mrc_region_ptr);
#else
size_t region_size;
*mrc_region_ptr = cbfs_get_file_content(CBFS_DEFAULT_MEDIA,
"mrc.cache",
CBFS_TYPE_MRC_CACHE,
&region_size);
return region_size;
#endif
size_t region_size = 0;
if (IS_ENABLED(CONFIG_CHROMEOS)) {
struct region_device rdev;
if (fmap_locate_area_as_rdev("RW_MRC_CACHE", &rdev) == 0) {
region_size = region_device_sz(&rdev);
*mrc_region_ptr = rdev_mmap_full(&rdev);
}
} else {
*mrc_region_ptr = cbfs_get_file_content(CBFS_DEFAULT_MEDIA,
"mrc.cache",
CBFS_TYPE_MRC_CACHE,
&region_size);
}
return region_size;
}
/*