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author | Jonas Gorski <jonas.gorski@gmail.com> | 2019-03-28 15:19:06 +0100 |
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committer | Richard Weinberger <richard@nod.at> | 2019-05-06 21:46:44 +0200 |
commit | daa82b93f5b0bdc67e5cf594d55c0c8d84a406c9 (patch) | |
tree | 7b194bdc9e6d24dcd66cad2c477d58fc292c5b21 /Documentation | |
parent | 4bc11a2418f2ebb51b977a9807f4fb78b52ed5a8 (diff) | |
download | linux-stable-daa82b93f5b0bdc67e5cf594d55c0c8d84a406c9.tar.gz linux-stable-daa82b93f5b0bdc67e5cf594d55c0c8d84a406c9.tar.bz2 linux-stable-daa82b93f5b0bdc67e5cf594d55c0c8d84a406c9.zip |
dt-bindings: mtd: describe the simple BCM963XX NOR flash layout
Add binding documentation for the standard CFE based BCM963XX flash
layout, found in most devices using a BCM63XX SoC with NOR flash.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/mtd/partitions/brcm,bcm963xx-cfe-nor-partitions.txt | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mtd/partitions/brcm,bcm963xx-cfe-nor-partitions.txt b/Documentation/devicetree/bindings/mtd/partitions/brcm,bcm963xx-cfe-nor-partitions.txt new file mode 100644 index 000000000000..9f630e95f180 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/partitions/brcm,bcm963xx-cfe-nor-partitions.txt @@ -0,0 +1,24 @@ +Broadcom BCM963XX CFE Loader NOR Flash Partitions +================================================= + +Most Broadcom BCM63XX SoC based devices follow the Broadcom reference layout for +NOR. The first erase block used for the CFE bootloader, the last for an +NVRAM partition, and the remainder in-between for one to two firmware partitions +at fixed offsets. A valid firmware partition is identified by the ImageTag +header found at beginning of the second erase block, containing the rootfs and +kernel offsets and sizes within the firmware partition. + +Required properties: +- compatible : must be "brcm,bcm963xx-cfe-nor-partitions" + +Example: + +flash@1fc00000 { + compatible = "cfi-flash"; + reg = <0x1fc00000 0x400000>; + bank-width = <2>; + + partitions { + compatible = "brcm,bcm963xx-cfe-nor-partitions"; + }; +}; |