linux-kernel - [PATCH] ARM: dts: ethanolx: Add BIOS flash chip

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Message-Id: <20230111113934.1176-1-aladyshev22@gmail.com>
Date:   Wed, 11 Jan 2023 14:39:34 +0300
From:   Konstantin Aladyshev <aladyshev22@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Konstantin Aladyshev <aladyshev22@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: dts: ethanolx: Add BIOS flash chip

Add a BIOS flash chip to the DTS to open a possibility to reflash the
main CPU BIOS from the BMC.

Signed-off-by: Konstantin Aladyshev <aladyshev22@...il.com>
---
 arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts b/arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts
index 8d84dcc06221..5f9093c58e8c 100644
--- a/arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts
@@ -63,6 +63,17 @@ flash@0 {
 	};
 };
 
+&spi1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi1_default>;
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "bios";
+		spi-max-frequency = <100000000>;
+	};
+};
 
 &mac0 {
 	status = "okay";
-- 
2.25.1