From: Tao Ren <rentao.bupt@gmail.com>
Date: Mon, 28 Jul 2025 05:56:07 +0000 (-0700)
Subject: ARM: dts: aspeed: Add facebook-bmc-flash-layout-128-data64.dtsi
X-Git-Tag: v6.18-rc1~147^2~55^2~15
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e1b5c5f54797a61073e564278e7dbefb469c1c50;p=thirdparty%2Fkernel%2Flinux.git

ARM: dts: aspeed: Add facebook-bmc-flash-layout-128-data64.dtsi

Add facebook-bmc-flash-layout-128-data64.dts (with 64MB datastore) to be
used by Meta Network BMC platforms.

Signed-off-by: Tao Ren <rentao.bupt@gmail.com>
Link: https://patch.msgid.link/20250728055618.61616-6-rentao.bupt@gmail.com
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
---

diff --git a/arch/arm/boot/dts/aspeed/facebook-bmc-flash-layout-128-data64.dtsi b/arch/arm/boot/dts/aspeed/facebook-bmc-flash-layout-128-data64.dtsi
new file mode 100644
index 0000000000000..efd92232cda26
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed/facebook-bmc-flash-layout-128-data64.dtsi
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2020 Facebook Inc.
+
+partitions {
+	compatible = "fixed-partitions";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	/*
+	 * u-boot partition: 896KB.
+	 */
+	u-boot@0 {
+		reg = <0x0 0xe0000>;
+		label = "u-boot";
+	};
+
+	/*
+	 * u-boot environment variables: 64KB.
+	 */
+	u-boot-env@e0000 {
+		reg = <0xe0000 0x10000>;
+		label = "env";
+	};
+
+	/*
+	 * image metadata partition (64KB), used by Facebook internal
+	 * tools.
+	 */
+	image-meta@f0000 {
+		reg = <0xf0000 0x10000>;
+		label = "meta";
+	};
+
+	/*
+	 * FIT image: 63 MB.
+	 */
+	fit@100000 {
+		reg = <0x100000 0x3f00000>;
+		label = "fit";
+	};
+
+	/*
+	 * "data0" partition (64MB) is used by Facebook BMC platforms as
+	 * persistent data store.
+	 */
+	data0@4000000 {
+		reg = <0x4000000 0x4000000>;
+		label = "data0";
+	};
+
+	/*
+	 * Although the master partition can be created by enabling
+	 * MTD_PARTITIONED_MASTER option, below "flash0" partition is
+	 * explicitly created to avoid breaking legacy applications.
+	 */
+	flash0@0 {
+		reg = <0x0 0x8000000>;
+		label = "flash0";
+	};
+};