linux-kernel - [PATCH v1] ARM: dts: Fix 64MiB OpenBMC flash layout and aspeed-ast2600-evb.dts

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Message-ID: <20210316085932.2601-1-troy_lee@aspeedtech.com>
Date:   Tue, 16 Mar 2021 08:59:32 +0000
From:   Troy Lee <troy_lee@...eedtech.com>
To:     <wangzhiqiang.bj@...edance.com>, <yulei.sh@...edance.com>,
        Rob Herring <robh+dt@...nel.org>,
        Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "moderated list:ARM/ASPEED MACHINE SUPPORT" 
        <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:ARM/ASPEED MACHINE SUPPORT" 
        <linux-aspeed@...ts.ozlabs.org>,
        open list <linux-kernel@...r.kernel.org>
CC:     <leetroy@...il.com>
Subject: [PATCH v1] ARM: dts: Fix 64MiB OpenBMC flash layout and aspeed-ast2600-evb.dts

Aspeed AST2600 u-boot requires 600KiB+ flash space. Sharing the same
openbmc-flash-layout-64.dtsi requires to resize the flash partition.

The updated flash layout as follows:
- u-boot: 896 KiB
- u-boot-env: 128 KiB
- kernel: 9MiB
- rofs: 32 MiB
- rwfs: 22 MiB

Signed-off-by: Troy Lee <troy_lee@...eedtech.com>
---
 arch/arm/boot/dts/aspeed-ast2600-evb.dts      | 32 +------------------
 .../arm/boot/dts/openbmc-flash-layout-64.dtsi | 18 +++++------
 2 files changed, 10 insertions(+), 40 deletions(-)

diff --git a/arch/arm/boot/dts/aspeed-ast2600-evb.dts b/arch/arm/boot/dts/aspeed-ast2600-evb.dts
index 89be13197780..2cfae9cfed3a 100644
--- a/arch/arm/boot/dts/aspeed-ast2600-evb.dts
+++ b/arch/arm/boot/dts/aspeed-ast2600-evb.dts
@@ -121,37 +121,7 @@ flash@0 {
 		m25p,fast-read;
 		label = "bmc";
 		spi-max-frequency = <50000000>;
-
-		partitions {
-			compatible = "fixed-partitions";
-			#address-cells = <1>;
-			#size-cells = <1>;
-
-			u-boot@0 {
-				reg = <0x0 0xe0000>; // 896KB
-				label = "u-boot";
-			};
-
-			u-boot-env@...00 {
-				reg = <0xe0000 0x20000>; // 128KB
-				label = "u-boot-env";
-			};
-
-			kernel@...000 {
-				reg = <0x100000 0x900000>; // 9MB
-				label = "kernel";
-			};
-
-			rofs@...000 {
-				reg = <0xa00000 0x2000000>; // 32MB
-				label = "rofs";
-			};
-
-			rwfs@...0000 {
-				reg = <0x2a00000 0x1600000>; // 22MB
-				label = "rwfs";
-			};
-		};
+#include "openbmc-flash-layout-64.dtsi"
 	};
 };
 
diff --git a/arch/arm/boot/dts/openbmc-flash-layout-64.dtsi b/arch/arm/boot/dts/openbmc-flash-layout-64.dtsi
index 91163867be34..31f59de5190b 100644
--- a/arch/arm/boot/dts/openbmc-flash-layout-64.dtsi
+++ b/arch/arm/boot/dts/openbmc-flash-layout-64.dtsi
@@ -9,27 +9,27 @@ partitions {
 	#size-cells = <1>;
 
 	u-boot@0 {
-		reg = <0x0 0x60000>; // 384KB
+		reg = <0x0 0xe0000>; // 896KB
 		label = "u-boot";
 	};
 
-	u-boot-env@...00 {
-		reg = <0x60000 0x20000>; // 128KB
+	u-boot-env@...00 {
+		reg = <0xe0000 0x20000>; // 128KB
 		label = "u-boot-env";
 	};
 
-	kernel@...00 {
-		reg = <0x80000 0x500000>; // 5MB
+	kernel@...000 {
+		reg = <0x100000 0x900000>; // 9MB
 		label = "kernel";
 	};
 
-	rofs@...000 {
-		reg = <0x580000 0x2a80000>; // 42.5MB
+	rofs@...000 {
+		reg = <0xa00000 0x2000000>; // 32MB
 		label = "rofs";
 	};
 
-	rwfs@...0000 {
-		reg = <0x3000000 0x1000000>; // 16MB
+	rwfs@...0000 {
+		reg = <0x2a00000 0x1600000>; // 22MB
 		label = "rwfs";
 	};
 };
-- 
2.25.1