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                 * Firmware Descriptor section of the Intel Firmware Descriptor
  31                 * image.
  32                 */
  33                 si-desc {
  34                         label = "si-desc";
  35                         reg = <0x00000000 0x00001000>;
  36                         type = "ifd";
  37                 };
  38                 bootblock {
  39                         label = "bootblock";
  40                         reg = <0x0007c480 0x00008000>;
  41                 };
  42                 ro-vpd {
  43                         label = "ro-vpd";
  44                         reg = <0x00200000 0x00004000>;
  45                         read-only;
  46                 };
  47                 ro-fmap {
  48                         label = "fmap";
  49                         /*
  50                         * We encourage to align FMAP partition in as large
  51                         * block as possible so that flashrom can find it soon.
  52                         * For example, aligning to 512KB is better than to
  53                         * 256KB.
  54                         */
  55
  56                         reg = <0x00204000 0x00000800>;
  57                         read-only;
  58                         type = "fmap";
  59                         ver-major = <1>;
  60                         ver-minor = <1>;
  61                 };
  62                 ro-frid {
  63                         label = "ro-frid";
  64                         reg = <0x00204800 0x00000040>;
  65                         read-only;
  66                 };
  67                 ro-boot {
  68                         label = "coreboot";
  69                         reg = <0x00205000 0x0017b000>;
  70                         read-only;
  71                         type = "blob coreboot";
  72                         required;
  73                 };
  74                 ro-gbb {
  75                         label = "gbb";
  76                         /* GBB offset must be aligned to 4K bytes */
  77                         reg = <0x00380000 0x00040000>;
  78                         read-only;
  79                         type = "blob gbb";
  80                 };
  81                 ro-sig2 {
  82                         label = "sign_cse";
  83                         reg = <0x003c0000 0x00010000>;
  84                         read-only;
  85                         required;
  86                 };
  87                 /* ---- Section: Rewritable MRC cache 64KB ---- */
  88                 rw-mrc-cache {
  89                         label = "rw-mrc-cache";
  90                         /* Alignment: 4k (for updating) */
  91                         reg = <0x00400000 0x00010000>;
  92                         type = "wiped";
  93                         wipe-value = [ff];
  94                 };
  95                 /* ---- 16k of event log ---- */
  96                 rw-elog {
  97                         label = "rw-elog";
  98                         /* Alignment: 4k (for updating) */
  99                         reg = <0x00410000 0x00004000>;
 100                         type = "wiped";
 101                         wipe-value = [ff];
 102                 };
 103                 /* --- Section: Rewritable shared 16 KB --- */
 104                 shared-section {
 105                         /*
 106                          * Alignment: 4k (for updating).
 107                          * Anything in this range may be updated in recovery.
 108                          */
 109                         label = "rw-shared";
 110                         reg = <0x00414000 0x00004000>;
 111                 };
 112                 shared-data {
 113                         label = "shared-data";
 114                         /*
 115                          * Alignment: 4k (for random read/write).
 116                          * RW firmware can put calibration data here.
 117                          */
 118                         reg = <0x00414000 0x00002000>;
 119                         type = "wiped";
 120                         wipe-value = [00];
 121                 };
 122                 rw-vblock-dev {
 123                         label = "vblock-dev";
 124                         /*
 125                          * Alignment: 4k (for random read/write).
 126                          * Reserve space for an optional user-installed
 127                          * vblock to validate dev-mode kernels.
 128                          * See crosbug.com/p/11216.
 129                          */
 130                         reg = <0x00416000 0x00002000>;
 131                         type = "wiped";
 132                         wipe-value = [ff];
 133                 };
 134                 /* ---- Section: Rewritable VPD 8 KB ---- */
 135                 rw-vpd {
 136                         label = "rw-vpd";
 137                         /* Alignment: 4k (for updating) */
 138                         reg = <0x00418000 0x00002000>;
 139                         type = "wiped";
 140                         wipe-value = [ff];
 141                 };
 142                 /* ---- Section: Rewritable slot A ---- */
 143                 rw-a {
 144                         label = "rw-section-a";
 145                         /* Alignment: 4k (for updating) */
 146                         reg = <0x0041a000 0x00173000>;
 147                 };
 148                 rw-a-vblock {
 149                         label = "vblock-a";
 150                         /*
 151                          * Alignment: 4k (for updating) and must be in start of
 152                          * each RW_SECTION.
 153                          */
 154                         reg = <0x0041a000 0x00010000>;
 155                         type = "keyblock cbfs/rw/a-boot";
 156                         keyblock = "firmware.keyblock";
 157                         signprivate = "firmware_data_key.vbprivk";
 158                         version = <1>;
 159                         kernelkey = "kernel_subkey.vbpubk";
 160                         preamble-flags = <0>;
 161                 };
 162                 rw-a-boot {
 163                         /* Alignment: no requirement (yet). */
 164                         label = "fw-main-a";
 165                         reg = <0x0042a000 0x00162fc0>;
 166                         type = "blob cbfs/rw/a-boot";
 167                 };
 168                 rw-a-firmware-id {
 169                         /* Alignment: no requirement. */
 170                         label = "rw-fwid-a";
 171                         reg = <0x0058cfc0 0x00000040>;
 172                         read-only;
 173                         type = "blobstring fwid";
 174                 };
 175
 176                 /* ---- Section: Rewritable slot B ---- */
 177                 rw-b {
 178                         label = "rw-section-b";
 179                         /* Alignment: 4k (for updating) */
 180                         reg = <0x0058d000 0x00173000>;
 181                 };
 182                 rw-b-vblock {
 183                         label = "vblock-b";
 184                         /*
 185                          * Alignment: 4k (for updating) and must be in start of
 186                          * each RW_SECTION.
 187                          */
 188                         reg = <0x0058d000 0x00010000>;
 189                         type = "keyblock cbfs/rw/b-boot";
 190                         keyblock = "firmware.keyblock";
 191                         signprivate = "firmware_data_key.vbprivk";
 192                         version = <1>;
 193                         kernelkey = "kernel_subkey.vbpubk";
 194                         preamble-flags = <0>;
 195                 };
 196                 rw-b-boot {
 197                         label = "fw-main-b";
 198                         /* Alignment: no requirement (yet). */
 199                         reg = <0x0059d000 0x00162fc0>;
 200                         type = "blob cbfs/rw/b-boot";
 201                 };
 202                 rw-b-firmware-id {
 203                         label = "rw-fwid-b";
 204                         /* Alignment: no requirement. */
 205                         reg = <0x006fffc0 0x00000040>;
 206                         read-only;
 207                         type = "blobstring fwid";
 208                 };
 209
 210                 device-extension {
 211                         /* CSE RW data */
 212                         label = "device-extension";
 213                         reg = <0x0077f000 0x00080000>;
 214                         type = "wiped";
 215                         wipe-value = [ff];
 216                 };
 217         };
 218 };