diff options
| -rw-r--r-- | payloads/libpayload/include/coreboot_tables.h | 7 | ||||
| -rw-r--r-- | payloads/libpayload/include/sysinfo.h | 1 | ||||
| -rw-r--r-- | payloads/libpayload/libc/coreboot.c | 15 |
3 files changed, 21 insertions, 2 deletions
diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h index e9c159d8bc..a3a0a05a32 100644 --- a/payloads/libpayload/include/coreboot_tables.h +++ b/payloads/libpayload/include/coreboot_tables.h @@ -239,6 +239,13 @@ struct cb_macs { struct mac_address mac_addrs[0]; }; +#define CB_TAG_RAM_CODE 0x0028 +struct cb_ram_code { + uint32_t tag; + uint32_t size; + uint32_t ram_code; +}; + #define CB_TAG_CMOS_OPTION_TABLE 0x00c8 struct cb_cmos_option_table { u32 tag; diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h index 825e4ef2ad..e15d186533 100644 --- a/payloads/libpayload/include/sysinfo.h +++ b/payloads/libpayload/include/sysinfo.h @@ -114,6 +114,7 @@ struct sysinfo_t { void *mrc_cache; void *acpi_gnvs; u32 board_id; + u32 ram_code; void *wifi_calibration; uint64_t ramoops_buffer; uint32_t ramoops_buffer_size; diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c index 489adf4a9f..1f1cf320a2 100644 --- a/payloads/libpayload/libc/coreboot.c +++ b/payloads/libpayload/libc/coreboot.c @@ -154,6 +154,12 @@ static void cb_parse_board_id(unsigned char *ptr, struct sysinfo_t *info) info->board_id = cbbid->board_id; } +static void cb_parse_ram_code(unsigned char *ptr, struct sysinfo_t *info) +{ + struct cb_ram_code *const ram_code = (struct cb_ram_code *)ptr; + info->ram_code = ram_code->ram_code; +} + #ifdef CONFIG_LP_NVRAM static void cb_parse_optiontable(void *ptr, struct sysinfo_t *info) { @@ -228,10 +234,12 @@ int cb_parse_header(void *addr, int len, struct sysinfo_t *info) info->header = header; /* - * Valid board IDs are small numbers, preset this to an invalid value - * for the case when firmware does not supply the board ID. + * Board straps represented by numerical values are small numbers. + * Preset them to an invalid value in case the firmware does not + * supply the info. */ info->board_id = ~0; + info->ram_code = ~0; /* Now, walk the tables. */ ptr += header->header_bytes; @@ -329,6 +337,9 @@ int cb_parse_header(void *addr, int len, struct sysinfo_t *info) case CB_TAG_BOARD_ID: cb_parse_board_id(ptr, info); break; + case CB_TAG_RAM_CODE: + cb_parse_ram_code(ptr, info); + break; case CB_TAG_WIFI_CALIBRATION: cb_parse_wifi_calibration(ptr, info); break; |