diff options
Diffstat (limited to 'src/drivers/elog/elog.c')
| -rw-r--r-- | src/drivers/elog/elog.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/src/drivers/elog/elog.c b/src/drivers/elog/elog.c index 1219883907..7be443a375 100644 --- a/src/drivers/elog/elog.c +++ b/src/drivers/elog/elog.c @@ -28,7 +28,9 @@ #include <elog.h> #include "elog_internal.h" -#if CONFIG_ELOG_FLASH_BASE == 0 +#if CONFIG_CHROMEOS +#include <vendorcode/google/chromeos/fmap.h> +#elif CONFIG_ELOG_FLASH_BASE == 0 #error "CONFIG_ELOG_FLASH_BASE is invalid" #endif #if CONFIG_ELOG_FULL_THRESHOLD >= CONFIG_ELOG_AREA_SIZE @@ -735,6 +737,12 @@ int elog_clear(void) */ int elog_init(void) { + u32 flash_base = CONFIG_ELOG_FLASH_BASE; + int flash_size = CONFIG_ELOG_AREA_SIZE; +#if CONFIG_CHROMEOS + u8 *flash_base_ptr; +#endif + if (elog_initialized) return 0; @@ -746,9 +754,24 @@ int elog_init(void) return -1; } +#if CONFIG_CHROMEOS + /* Find the ELOG base and size in FMAP */ + flash_size = find_fmap_entry("RW_ELOG", (void **)&flash_base_ptr); + if (flash_size < 0) { + printk(BIOS_WARNING, "ELOG: Unable to find RW_ELOG in FMAP, " + "using CONFIG_ELOG_FLASH_BASE instead\n"); + flash_size = CONFIG_ELOG_AREA_SIZE; + } else { + flash_base = elog_flash_address_to_offset(flash_base_ptr); + + /* Use configured size if smaller than FMAP size */ + if (flash_size > CONFIG_ELOG_AREA_SIZE) + flash_size = CONFIG_ELOG_AREA_SIZE; + } +#endif + /* Setup descriptors for flash and memory areas */ - if (elog_setup_descriptors(CONFIG_ELOG_FLASH_BASE, - CONFIG_ELOG_AREA_SIZE) < 0) { + if (elog_setup_descriptors(flash_base, flash_size) < 0) { printk(BIOS_ERR, "ELOG: Unable to initialize descriptors\n"); return -1; } |