Commit 4caa4e30 authored Sep 25, 2019 by Brad Bishop Committed by Joel Stanley Nov 01, 2019

ARM: dts: Add 128MiB OpenBMC flash layout



This is an alternate layout used by OpenBMC systems that require more
space on the BMC's flash. In addition to more space for the rootfs, it
supports a larger u-boot and Linux kernel FIT image.

The division of space is as follows:

 u-boot + env: 1MB
 kernel/FIT: 9MB
 rwfs: 86MB
 rofs: 32MB

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>

parent d52ce2be

arch/arm/boot/dts/openbmc-flash-layout-128.dtsi

0 → 100644

+32 −0

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0+

		partitions {
		compatible = "fixed-partitions";
		#address-cells = <1>;
		#size-cells = <1>;

		u-boot@0 {
		reg = <0x0 0xe0000>; // 896KB
		label = "u-boot";
		};

		u-boot-env@e0000 {
		reg = <0xe0000 0x20000>; // 128KB
		label = "u-boot-env";
		};

		kernel@100000 {
		reg = <0x100000 0x900000>; // 9MB
		label = "kernel";
		};

		rofs@a00000 {
		reg = <0xa00000 0x5600000>; // 86MB
		label = "rofs";
		};

		rwfs@6000000 {
		reg = <0x6000000 0x2000000>; // 32MB
		label = "rwfs";
		};
		};