From ddf2bc5081e0eafc33af40a06f4217c5c851fa3f Mon Sep 17 00:00:00 2001 From: Bora Guvendik Date: Fri, 30 Mar 2018 16:03:32 -0700 Subject: 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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/25464 Reviewed-by: Lijian Zhao Tested-by: build bot (Jenkins) --- payloads/libpayload/include/coreboot_tables.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'payloads/libpayload/include/coreboot_tables.h') diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h index 92e3f26180..705e348666 100644 --- a/payloads/libpayload/include/coreboot_tables.h +++ b/payloads/libpayload/include/coreboot_tables.h @@ -287,6 +287,21 @@ struct cb_macs { struct mac_address mac_addrs[0]; }; +#define CB_TAG_MMC_INFO 0x0034 +struct cb_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; +}; + #define CB_TAG_SERIALNO 0x002a #define CB_MAX_SERIALNO_LENGTH 32 -- cgit v1.2.3