tools/ifdtool.h

   1 /*
   2  * ifdtool - Manage Intel Firmware Descriptor information
   3  *
   4  * Copyright (C) 2011 The ChromiumOS Authors.
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0
   7  *
   8  * From Coreboot project
   9  */
  10
  11 #include <stdint.h>
  12
  13 #define __packed        __attribute__((packed))
  14
  15 #define IFDTOOL_VERSION "1.1-U-Boot"
  16
  17 #define WRITE_MAX       16
  18
  19 enum spi_frequency {
  20         SPI_FREQUENCY_20MHZ = 0,
  21         SPI_FREQUENCY_33MHZ = 1,
  22         SPI_FREQUENCY_50MHZ = 4,
  23 };
  24
  25 enum component_density {
  26         COMPONENT_DENSITY_512KB = 0,
  27         COMPONENT_DENSITY_1MB   = 1,
  28         COMPONENT_DENSITY_2MB   = 2,
  29         COMPONENT_DENSITY_4MB   = 3,
  30         COMPONENT_DENSITY_8MB   = 4,
  31         COMPONENT_DENSITY_16MB  = 5,
  32 };
  33
  34 /* flash descriptor */
  35 struct __packed fdbar_t {
  36         uint32_t flvalsig;
  37         uint32_t flmap0;
  38         uint32_t flmap1;
  39         uint32_t flmap2;
  40         uint8_t  reserved[0xefc - 0x20];
  41         uint32_t flumap1;
  42 };
  43
  44 #define MAX_REGIONS     5
  45
  46 /* regions */
  47 struct __packed frba_t {
  48         uint32_t flreg[MAX_REGIONS];
  49 };
  50
  51 /* component section */
  52 struct __packed fcba_t {
  53         uint32_t flcomp;
  54         uint32_t flill;
  55         uint32_t flpb;
  56 };
  57
  58 #define MAX_STRAPS      18
  59
  60 /* pch strap */
  61 struct __packed fpsba_t {
  62         uint32_t pchstrp[MAX_STRAPS];
  63 };
  64
  65 /* master */
  66 struct __packed fmba_t {
  67         uint32_t flmstr1;
  68         uint32_t flmstr2;
  69         uint32_t flmstr3;
  70 };
  71
  72 /* processor strap */
  73 struct __packed fmsba_t {
  74         uint32_t data[8];
  75 };
  76
  77 /* ME VSCC */
  78 struct vscc_t {
  79         uint32_t jid;
  80         uint32_t vscc;
  81 };
  82
  83 struct vtba_t {
  84         /* Actual number of entries specified in vtl */
  85         struct vscc_t entry[8];
  86 };
  87
  88 struct region_t {
  89         int base, limit, size;
  90 };