tools/ifdtool.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * ifdtool - Manage Intel Firmware Descriptor information
   4  *
   5  * Copyright (C) 2011 The ChromiumOS Authors.
   6  *
   7  * From Coreboot project
   8  */
   9
  10 #include <stdint.h>
  11
  12 #define __packed        __attribute__((packed))
  13
  14 #define IFDTOOL_VERSION "1.1-U-Boot"
  15
  16 #define WRITE_MAX       16
  17
  18 enum spi_frequency {
  19         SPI_FREQUENCY_20MHZ = 0,
  20         SPI_FREQUENCY_33MHZ = 1,
  21         SPI_FREQUENCY_50MHZ = 4,
  22 };
  23
  24 enum component_density {
  25         COMPONENT_DENSITY_512KB = 0,
  26         COMPONENT_DENSITY_1MB   = 1,
  27         COMPONENT_DENSITY_2MB   = 2,
  28         COMPONENT_DENSITY_4MB   = 3,
  29         COMPONENT_DENSITY_8MB   = 4,
  30         COMPONENT_DENSITY_16MB  = 5,
  31 };
  32
  33 /* flash descriptor */
  34 struct __packed fdbar_t {
  35         uint32_t flvalsig;
  36         uint32_t flmap0;
  37         uint32_t flmap1;
  38         uint32_t flmap2;
  39         uint8_t  reserved[0xefc - 0x20];
  40         uint32_t flumap1;
  41 };
  42
  43 #define MAX_REGIONS     5
  44
  45 /* regions */
  46 struct __packed frba_t {
  47         uint32_t flreg[MAX_REGIONS];
  48 };
  49
  50 /* component section */
  51 struct __packed fcba_t {
  52         uint32_t flcomp;
  53         uint32_t flill;
  54         uint32_t flpb;
  55 };
  56
  57 #define MAX_STRAPS      18
  58
  59 /* pch strap */
  60 struct __packed fpsba_t {
  61         uint32_t pchstrp[MAX_STRAPS];
  62 };
  63
  64 /* master */
  65 struct __packed fmba_t {
  66         uint32_t flmstr1;
  67         uint32_t flmstr2;
  68         uint32_t flmstr3;
  69 };
  70
  71 /* processor strap */
  72 struct __packed fmsba_t {
  73         uint32_t data[8];
  74 };
  75
  76 /* ME VSCC */
  77 struct vscc_t {
  78         uint32_t jid;
  79         uint32_t vscc;
  80 };
  81
  82 struct vtba_t {
  83         /* Actual number of entries specified in vtl */
  84         struct vscc_t entry[8];
  85 };
  86
  87 struct region_t {
  88         int base, limit, size;
  89 };