board/reef/fmap.dts

   1 /dts-v1/;
   2 /*
   3  * NOTE: this needs to align with src/mainboard/google/reef/chromeos.fmd
   4  * in the coreboot repository. Any changes made there should be reflected
   5  * in this file. There are parallel notions of fmap information. However,
   6  * both are used in different parts of the system so the right answer now
   7  * is to keep them in sync.
   8  */
   9
  10 / {
  11         model = "Google Reef";
  12         config {
  13                 hwid = "REEF TEST 3240";
  14         };
  15         chromeos-config {
  16                 /* Enable factory-friendly features. */
  17                 gbb-flag-dev-screen-short-delay;
  18                 gbb-flag-force-dev-switch-on;
  19                 gbb-flag-force-dev-boot-usb;
  20                 gbb-flag-disable-fw-rollback-check;
  21         };
  22         flash@ff800000 {
  23                 #address-cells = <1>;
  24                 #size-cells = <1>;
  25                 compatible = "chromeos,flashmap";
  26                 /* FIXME: the part is really 16MiB */
  27                 reg = <0xff800000 0x00800000>;
  28
  29                 /*
  30                  * This encompasses both the descriptor proper and IFWI
  31                  * information found in the first part of the BIOS section.
  32                  */
  33                 si-all {
  34                         label = "si-all";
  35                         reg = <0x00000000 0x00200000>;
  36                         type = "ifd";
  37                 };
  38
  39                 /*
  40                 * Firmware Descriptor section of the Intel Firmware Descriptor
  41                 * image.
  42                 */
  43                 si-desc {
  44                         label = "si-desc";
  45                         reg = <0x00000000 0x00001000>;
  46                 };
  47                 bootblock {
  48                         label = "bootblock";
  49                         reg = <0x00076480 0x00008000>;
  50                 };
  51                 ro-vpid {
  52                         label = "ro-vpid";
  53                         reg = <0x00200000 0x00004000>;
  54                         read-only;
  55                 };
  56                 ro-fmap {
  57                         label = "fmap";
  58                         /*
  59                         * We encourage to align FMAP partition in as large
  60                         * block as possible so that flashrom can find it soon.
  61                         * For example, aligning to 512KB is better than to
  62                         * 256KB.
  63                         */
  64
  65                         reg = <0x00204000 0x00000800>;
  66                         read-only;
  67                         type = "fmap";
  68                         ver-major = <1>;
  69                         ver-minor = <1>;
  70                 };
  71                 ro-frid {
  72                         label = "ro-frid";
  73                         reg = <0x00204800 0x00000040>;
  74                         read-only;
  75                 };
  76                 ro-boot {
  77                         label = "coreboot";
  78                         reg = <0x00205000 0x0017b000>;
  79                         read-only;
  80                         type = "blob coreboot";
  81                         required;
  82                 };
  83                 ro-sig2 {
  84                         label = "sign_cse";
  85                         reg = <0x00380000 0x00010000>;
  86                         read-only;
  87                         required;
  88                 };
  89                 ro-gbb {
  90                         label = "gbb";
  91                         /* GBB offset must be aligned to 4K bytes */
  92                         reg = <0x00390000 0x00050000>;
  93                         read-only;
  94                         type = "blob gbb";
  95                 };
  96                 /* ---- Section: Rewritable MRC cache 64KB ---- */
  97                 rw-mrc-cache {
  98                         label = "rw-mrc-cache";
  99                         /* Alignment: 4k (for updating) */
 100                         reg = <0x00400000 0x00010000>;
 101                         type = "wiped";
 102                         wipe-value = [ff];
 103                 };
 104                 /* ---- 8k of event log */
 105                 rw-elog {
 106                         label = "rw-elog";
 107                         /* Alignment: 4k (for updating) */
 108                         reg = <0x00410000 0x00004000>;
 109                         type = "wiped";
 110                         wipe-value = [ff];
 111                 };
 112                 /* --- Section: Rewritable shared 16 KB --- */
 113                 shared-section {
 114                         /*
 115                          * Alignment: 4k (for updating).
 116                          * Anything in this range may be updated in recovery.
 117                          */
 118                         label = "rw-shared";
 119                         reg = <0x00414000 0x00004000>;
 120                 };
 121                 shared-data {
 122                         label = "shared-data";
 123                         /*
 124                          * Alignment: 4k (for random read/write).
 125                          * RW firmware can put calibration data here.
 126                          */
 127                         reg = <0x00414000 0x00002000>;
 128                         type = "wiped";
 129                         wipe-value = [00];
 130                 };
 131                 /* ---- Section: Rewritable slot A ---- */
 132                 rw-a {
 133                         label = "rw-section-a";
 134                         /* Alignment: 4k (for updating) */
 135                         reg = <0x00520000 0x000f0000>;
 136                 };
 137                 rw-a-vblock {
 138                         label = "vblock-a";
 139                         /*
 140                          * Alignment: 4k (for updating) and must be in start of
 141                          * each RW_SECTION.
 142                          */
 143                         reg = <0x00520000 0x00010000>;
 144                         type = "keyblock cbfs/rw/a-boot";
 145                         keyblock = "firmware.keyblock";
 146                         signprivate = "firmware_data_key.vbprivk";
 147                         version = <1>;
 148                         kernelkey = "kernel_subkey.vbpubk";
 149                         preamble-flags = <0>;
 150                 };
 151                 rw-a-boot {
 152                         /* Alignment: no requirement (yet). */
 153                         label = "fw-main-a";
 154                         reg = <0x00530000 0x000c0000>;
 155                         type = "blob cbfs/rw/a-boot";
 156                 };
 157                 /* ---- Section: Rewritable slot B ---- */
 158                 rw-b {
 159                         label = "rw-section-b";
 160                         /* Alignment: 4k (for updating) */
 161                         reg = <0x00610000 0x000f0000>;
 162                 };
 163                 rw-b-vblock {
 164                         label = "vblock-b";
 165                         /*
 166                          * Alignment: 4k (for updating) and must be in start of
 167                          * each RW_SECTION.
 168                          */
 169                         reg = <0x00610000 0x00010000>;
 170                         type = "keyblock cbfs/rw/b-boot";
 171                         keyblock = "firmware.keyblock";
 172                         signprivate = "firmware_data_key.vbprivk";
 173                         version = <1>;
 174                         kernelkey = "kernel_subkey.vbpubk";
 175                         preamble-flags = <0>;
 176                 };
 177                 rw-b-boot {
 178                         label = "fw-main-b";
 179                         /* Alignment: no requirement (yet). */
 180                         reg = <0x00620000 0x000c0000>;
 181                         type = "blob cbfs/rw/b-boot";
 182                 };
 183
 184                 device-extension {
 185                         /* CSE RW data */
 186                         label = "device-extension";
 187                         reg = <0x00700000 0x00100000>;
 188                         type = "wiped";
 189                         wipe-value = [ff];
 190                 };
 191         };
 192 };