src/soc/amd/common/fsp/fsp_validate.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <console/console.h>
   4 #include <fsp/util.h>
   5 #include <types.h>
   6
   7 struct amd_image_revision {
   8         uint8_t build;
   9         uint8_t revision;
  10         uint8_t minor;
  11         uint8_t major;
  12 } __packed;
  13
  14 /* Validate the FSP-M header in romstage */
  15 void soc_validate_fspm_header(const struct fsp_header *hdr)
  16 {
  17         struct amd_image_revision *rev;
  18
  19         rev = (struct amd_image_revision *)&(hdr->image_revision);
  20
  21         /* Check if the image fits into the reserved memory region */
  22         if (hdr->image_size > CONFIG_FSP_M_SIZE)
  23                 die("The FSP-M binary is %u bytes larger than the memory region"
  24                 " allocated for it. Increase FSP_M_SIZE to make it fit.\n",
  25                         hdr->image_size - CONFIG_FSP_M_SIZE);
  26
  27         /* a coding bug on the AMD FSP side makes this value 1 in
  28         older versions of the FSP.*/
  29         if (hdr->image_revision == 1) {
  30                 printk(BIOS_WARNING, "No AMD FSP image revision information available\n");
  31                 return;
  32         }
  33
  34         printk(BIOS_INFO, "FSP major    = %d\n", rev->major);
  35         printk(BIOS_INFO, "FSP minor    = %d\n", rev->minor);
  36         printk(BIOS_INFO, "FSP revision = %d\n", rev->revision);
  37         printk(BIOS_INFO, "FSP build    = %d\n", rev->build);
  38
  39         if ((rev->major != IMAGE_REVISION_MAJOR_VERSION) ||
  40         (rev->minor != IMAGE_REVISION_MINOR_VERSION)) {
  41                 printk(BIOS_WARNING, "FSP binary and SOC FSP header file don't match.\n");
  42                 printk(BIOS_WARNING, "include file ImageRevisionMajorVersion=%d\n",
  43                         IMAGE_REVISION_MAJOR_VERSION);
  44                 printk(BIOS_WARNING, "include file ImageRevisionMinorVersion=%d\n",
  45                         IMAGE_REVISION_MINOR_VERSION);
  46                 printk(BIOS_WARNING, "Please update FspmUpd.h based on the corresponding FSP"
  47                         " build's FspmUpd.h\n");
  48         }
  49
  50         if (rev->major != IMAGE_REVISION_MAJOR_VERSION)
  51                 die("IMAGE_REVISION_MAJOR_VERSION mismatch, halting\nGoodbye now\n");
  52 }