diff options
| author | Bora Guvendik <bora.guvendik@intel.com> | 2018-03-30 16:03:32 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-05-23 09:04:41 +0000 |
| commit | ddf2bc5081e0eafc33af40a06f4217c5c851fa3f (patch) | |
| tree | 3a0dec85d5c60ada99c08fdbce00cb7dd2634572 /src/commonlib | |
| parent | b7fe7a1a8e033706f39c0fded5901f0f1dce7cfb (diff) | |
coreboot_tables: pass the early_mmc_wake_hw status to payload
Pass the return value from early_mmc_wake_hw() to the payload so that
payload can skip sending CMD0 and resetting the card in case of success
or in case of a failure in firmware, payload can recover by sending
CMD0 and resetting the card.
BUG=b:78106689
TEST=Boot to OS
Change-Id: Ia4c57d05433c3966118c3642913d7017958cce55
Signed-off-by: Bora Guvendik <bora.guvendik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/25464
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/commonlib')
| -rw-r--r-- | src/commonlib/include/commonlib/coreboot_tables.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/commonlib/include/commonlib/coreboot_tables.h b/src/commonlib/include/commonlib/coreboot_tables.h index 198ad27b87..99ab21c724 100644 --- a/src/commonlib/include/commonlib/coreboot_tables.h +++ b/src/commonlib/include/commonlib/coreboot_tables.h @@ -385,6 +385,21 @@ struct mac_address { uint8_t pad[2]; /* Pad it to 8 bytes to keep it simple. */ }; +#define LB_TAG_MMC_INFO 0x0034 +struct lb_mmc_info { + uint32_t tag; + uint32_t size; + /* + * Passes the early mmc status to payload to indicate if firmware + * successfully sent CMD0, CMD1 to the card or not. In case of + * success, the payload can skip the first step of the initialization + * sequence which is to send CMD0, and instead start by sending CMD1 + * as described in Jedec Standard JESD83-B1 section 6.4.3. + * passes 1 on success + */ + int32_t early_cmd1_status; +}; + struct lb_macs { uint32_t tag; uint32_t size; |