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/*
* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/ {
/*
* Names will be capitalized and hyphen converted to underscore by
* cros_bundle_firmware.
*/
flash@ff800000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "chromeos,flashmap";
reg = <0xff800000 0x00800000>;
/*
* Non-BIOS section of the Intel Firmware Descriptor image.
* This section covers the all the parts that are not shown
* to the CPU right below 4G.
*/
si-all@0 {
label = "si-all";
reg = <0x00000000 0x00180000>;
};
/*
* Firmware Descriptor section of the Intel Firmware Descriptor
* image.
*/
si-desc@0 {
label = "si-desc";
reg = <0x00000000 0x00001000>;
type = "wiped";
wipe-value = [ff];
};
/*
* Intel Management Engine section of the Intel Firmware
* Descriptor image.
*/
si-me@0 {
label = "si-me";
reg = <0x00001000 0x0017f000>;
type = "wiped";
wipe-value = [ff];
};
/*
* "BIOS" section of the Intel Firmware Descriptor image.
* This section covers the complete image as shown to the
* CPU right below 4G.
*/
si-bios@0 {
label ="si-bios";
reg = <0x00180000 0x00680000>;
};
/* ---- Section: Rewritable VPD 4 KB ---- */
rw-vpd@0 {
label = "rw-vpd";
/* Alignment: 4k (for updating) */
reg = <0x00180000 0x00001000>;
type = "wiped";
wipe-value = [ff];
};
/*
* This space is currently unused and reserved for future
* extensions. cros_bundle_firmware dislikes holes in the
* FMAP, so we cover all empty space here.
*/
rw-unused@0 {
label = "rw-unused";
reg = <0x00181000 0x00067000>;
type = "wiped";
wipe-value = [ff];
};
/* ---- Section: Rewritable shared 80 KB---- */
shared-section@0 {
/* Alignment: 4k (for updating).
* Anything in this range may be updated in recovery. */
label = "rw-shared";
reg = <0x001e8000 0x00018000>;
};
/* ---- Section: Rewritable u-boot environment 16 KB---- */
rw-environment@0 {
label = "rw-environment";
/* Alignment 4k: (for updating) */
reg = <0x001e8000 0x00004000>;
/*
* We could put the dev environment here, but U-Boot has
* a default built in. Devs can 'saveenv' to set this
* up.
*/
type = "wiped";
wipe-value = [00];
};
/* ---- Section: Rewritable MRC cache 64 KB ---- */
rw-mrc-cache@0 {
label = "rw-mrc-cache";
/* Alignment: 4k (for updating) */
reg = <0x001ec000 0x00010000>;
type = "wiped";
wipe-value = [ff];
};
/* ---- Section: Rewritable private 16 KB---- */
dev-cfg@0 {
label = "dev-cfg";
/* Alignment: 4k (for updating) */
reg = <0x001fc000 0x00004000>;
type = "wiped";
wipe-value = [00];
};
/* ---- Section: Rewritable slot A ---- */
rw-a@0 {
label = "rw-section-a";
/* Alignment: 4k (for updating) */
reg = <0x00200000 0x00100000>;
};
rw-a-vblock@0 {
label = "vblock-a";
/*
* Alignment: 4k (for updating) and must be in start of
* each RW_SECTION.
*/
reg = <0x00200000 0x00010000>;
type = "keyblock boot";
keyblock = "firmware.keyblock";
signprivate = "firmware_data_key.vbprivk";
version = <1>;
kernelkey = "kernel_subkey.vbpubk";
preamble-flags = <1>;
};
rw-a-boot@0 {
/* Alignment: no requirement (yet). */
label = "fw-main-a";
reg = <0x00210000 0x0007ffc0>;
type = "blob boot";
};
rw-a-firmware-id@0 {
/* Alignment: no requirement. */
label = "rw-fwid-a";
reg = <0x0028ffc0 0x00000040>;
read-only;
type = "blobstring fwid";
};
rw-a-unused@0 {
label = "rw-unused-a";
reg = <0x00290000 0x00070000>;
type = "wiped";
wipe-value = [ff];
};
/* ---- Section: Rewritable slot B ---- */
rw-b@0 {
label = "rw-section-b";
/* Alignment: 4k (for updating) */
reg = <0x00300000 0x00100000>;
};
rw-b-vblock@0 {
label = "vblock-b";
/*
* Alignment: 4k (for updating) and must be in start of
* each RW_SECTION.
*/
reg = <0x00300000 0x00010000>;
type = "keyblock boot";
keyblock = "firmware.keyblock";
signprivate = "firmware_data_key.vbprivk";
version = <1>;
kernelkey = "kernel_subkey.vbpubk";
preamble-flags = <1>;
};
rw-b-boot@0 {
label = "fw-main-b";
/* Alignment: no requirement (yet). */
reg = <0x00310000 0x0007ffc0>;
type = "blob boot";
};
rw-b-firmware-id@0 {
label = "rw-fwid-b";
/* Alignment: no requirement. */
reg = <0x0038ffc0 0x00000040>;
read-only;
type = "blobstring fwid";
};
rw-b-unused@0 {
label = "rw-unused-b";
reg = <0x00390000 0x00070000>;
type = "wiped";
wipe-value = [ff];
};
/*
* This space is currently unused and reserved for future
* extensions. cros_bundle_firmware dislikes holes in the
* FMAP, so we cover all empty space here.
*/
ro-unused-1@0 {
label = "ro-unused-1";
reg = <0x00400000 0x00170000>;
type = "wiped";
wipe-value = [ff];
};
/* ---- Section: Vital-product data (VPD) ---- */
ro-vpd@0 {
label = "ro-vpd";
/* VPD offset must be aligned to 4K bytes */
reg = <0x00570000 0x00020000>; /* 128 KB */
read-only;
type = "wiped";
wipe-value = [ff];
};
/*
* This space is currently unused and reserved for future
* extensions. cros_bundle_firmware dislikes holes in the
* FMAP, so we cover all empty space here.
*/
ro-unused-2@0 {
label = "ro-unused-2";
reg = <0x00590000 0x000e0000>;
type = "wiped";
wipe-value = [ff];
};
/* ---- Section: Read-only ---- */
ro-section@0 {
label = "ro-section";
reg = <0x00670000 0x00190000>;
read-only;
};
ro-fmap@0 {
label = "fmap";
/*
* We encourage to align FMAP partition in as large
* block as possible so that flashrom can find it soon.
* For example, aligning to 512KB is better than to
* 256KB.
*/
reg = <0x00670000 0x00000800>;
read-only;
type = "fmap";
ver-major = <1>;
ver-minor = <0>;
};
ro-firmware-id@0 {
label = "ro-frid";
reg = <0x00670800 0x00000040>;
read-only;
type = "blobstring fwid";
};
ro-padding@0 {
label = "ro-padding";
reg = <0x00670840 0x0000f7c0>;
read-only;
type = "wiped";
wipe-value = [ff];
};
ro-gbb@0 {
label = "gbb";
/* GBB offset must be aligned to 4K bytes */
reg = <0x00680000 0x00080000>; /* 512 KB */
read-only;
type = "blob gbb";
};
ro-boot@0 {
label = "boot-stub";
reg = <0x00700000 0x00100000>; /* 1024 KB */
read-only;
type = "blob signed";
};
};
};
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