diff options
Diffstat (limited to 'src/drivers/intel/fsp1_1/vbt.c')
| -rw-r--r-- | src/drivers/intel/fsp1_1/vbt.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/drivers/intel/fsp1_1/vbt.c b/src/drivers/intel/fsp1_1/vbt.c index 414b88d95a..5cac150d01 100644 --- a/src/drivers/intel/fsp1_1/vbt.c +++ b/src/drivers/intel/fsp1_1/vbt.c @@ -15,10 +15,49 @@ */ #include <bootmode.h> +#include <cbfs.h> #include <console/console.h> #include <fsp/ramstage.h> #include <fsp/util.h> +/* Reading VBT table from flash */ +const optionrom_vbt_t *fsp_get_vbt(uint32_t *vbt_len) +{ + size_t vbt_size; + union { + const optionrom_vbt_t *data; + uint32_t *signature; + } vbt; + + /* Locate the vbt file in cbfs */ + vbt.data = cbfs_boot_map_with_leak("vbt.bin", CBFS_TYPE_RAW, &vbt_size); + if (!vbt.data) { + printk(BIOS_INFO, + "FSP_INFO: VBT data file (vbt.bin) not found in CBFS"); + return NULL; + } + + /* Validate the vbt file */ + if (*vbt.signature != VBT_SIGNATURE) { + printk(BIOS_WARNING, + "FSP_WARNING: Invalid signature in VBT data file (vbt.bin)!\n"); + return NULL; + } + *vbt_len = vbt_size; + printk(BIOS_DEBUG, "FSP_INFO: VBT found at %p, 0x%08x bytes\n", + vbt.data, *vbt_len); + +#if IS_ENABLED(CONFIG_DISPLAY_VBT) + /* Display the vbt file contents */ + printk(BIOS_DEBUG, "VBT Data:\n"); + hexdump(vbt.data, *vbt_len); + printk(BIOS_DEBUG, "\n"); +#endif + + /* Return the pointer to the vbt file data */ + return vbt.data; +} + /* Locate VBT and pass it to FSP GOP */ void load_vbt(uint8_t s3_resume, SILICON_INIT_UPD *params) { |