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 enum spi_frequency {
  18         SPI_FREQUENCY_20MHZ = 0,
  19         SPI_FREQUENCY_33MHZ = 1,
  20         SPI_FREQUENCY_50MHZ = 4,
  21 };
  22
  23 enum component_density {
  24         COMPONENT_DENSITY_512KB = 0,
  25         COMPONENT_DENSITY_1MB   = 1,
  26         COMPONENT_DENSITY_2MB   = 2,
  27         COMPONENT_DENSITY_4MB   = 3,
  28         COMPONENT_DENSITY_8MB   = 4,
  29         COMPONENT_DENSITY_16MB  = 5,
  30 };
  31
  32 /* flash descriptor */
  33 struct __packed fdbar_t {
  34         uint32_t flvalsig;
  35         uint32_t flmap0;
  36         uint32_t flmap1;
  37         uint32_t flmap2;
  38         uint8_t  reserved[0xefc - 0x20];
  39         uint32_t flumap1;
  40 };
  41
  42 #define MAX_REGIONS     5
  43
  44 /* regions */
  45 struct __packed frba_t {
  46         uint32_t flreg[MAX_REGIONS];
  47 };
  48
  49 /* component section */
  50 struct __packed fcba_t {
  51         uint32_t flcomp;
  52         uint32_t flill;
  53         uint32_t flpb;
  54 };
  55
  56 #define MAX_STRAPS      18
  57
  58 /* pch strap */
  59 struct __packed fpsba_t {
  60         uint32_t pchstrp[MAX_STRAPS];
  61 };
  62
  63 /* master */
  64 struct __packed fmba_t {
  65         uint32_t flmstr1;
  66         uint32_t flmstr2;
  67         uint32_t flmstr3;
  68 };
  69
  70 /* processor strap */
  71 struct __packed fmsba_t {
  72         uint32_t data[8];
  73 };
  74
  75 /* ME VSCC */
  76 struct vscc_t {
  77         uint32_t jid;
  78         uint32_t vscc;
  79 };
  80
  81 struct vtba_t {
  82         /* Actual number of entries specified in vtl */
  83         struct vscc_t entry[8];
  84 };
  85
  86 struct region_t {
  87         int base, limit, size;
  88 };