src/drivers/intel/fsp1_1/vbt.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <acpi/acpi.h>
   4 #include <bootmode.h>
   5 #include <console/console.h>
   6 #include <drivers/intel/gma/opregion.h>
   7 #include <fsp/ramstage.h>
   8 #include <fsp/util.h>
   9 #include <lib.h>
  10
  11 /* Locate VBT and pass it to FSP GOP */
  12 void load_vbt(SILICON_INIT_UPD *params)
  13 {
  14         const optionrom_vbt_t *vbt_data = NULL;
  15         size_t vbt_len;
  16
  17         /* Check boot mode - for S3 resume path VBT loading is not needed */
  18         if (acpi_is_wakeup_s3()) {
  19                 printk(BIOS_DEBUG, "S3 resume do not pass VBT to GOP\n");
  20         } else if (display_init_required()) {
  21                 /* Get VBT data */
  22                 vbt_data = locate_vbt(&vbt_len);
  23                 if (vbt_data != NULL) {
  24                         if (CONFIG(DISPLAY_VBT)) {
  25                                 /* Display the vbt file contents */
  26                                 printk(BIOS_DEBUG, "VBT Data:\n");
  27                                 hexdump(vbt_data, vbt_len);
  28                                 printk(BIOS_DEBUG, "\n");
  29                         }
  30                         printk(BIOS_DEBUG, "Passing VBT to GOP\n");
  31                 } else {
  32                         printk(BIOS_DEBUG, "VBT not found!\n");
  33                 }
  34         } else {
  35                 printk(BIOS_DEBUG, "Not passing VBT to GOP\n");
  36         }
  37         params->GraphicsConfigPtr = (u32)vbt_data;
  38 }