linux-kernel - [PATCH 6/6] ARM: dts: aspeed: Add e3c246d4i BIOS flash device

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Message-Id: <20210929115409.21254-7-zev@bewilderbeest.net>
Date:   Wed, 29 Sep 2021 04:54:08 -0700
From:   Zev Weiss <zev@...ilderbeest.net>
To:     openbmc@...ts.ozlabs.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jeremy Kerr <jk@...econstruct.com.au>,
        Joel Stanley <joel@....id.au>,
        Cédric Le Goater <clg@...d.org>,
        Zev Weiss <zev@...ilderbeest.net>,
        Rob Herring <robh+dt@...nel.org>,
        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 6/6] ARM: dts: aspeed: Add e3c246d4i BIOS flash device

Signed-off-by: Zev Weiss <zev@...ilderbeest.net>
---
 .../arm/boot/dts/aspeed-bmc-asrock-e3c246d4i.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-bmc-asrock-e3c246d4i.dts b/arch/arm/boot/dts/aspeed-bmc-asrock-e3c246d4i.dts
index 9b4cf5ebe6d5..456f4de53869 100644
--- a/arch/arm/boot/dts/aspeed-bmc-asrock-e3c246d4i.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-asrock-e3c246d4i.dts
@@ -68,6 +68,22 @@ flash@0 {
 	};
 };
 
+&spi1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi1_default>;
+	flash@0 {
+		/*
+		 * The BIOS SPI flash is shared with the host via an
+		 * external mux, and is not accessible by the BMC by
+		 * default (hence "reserved" rather than "okay").
+		 */
+		status = "reserved";
+		label = "bios";
+		m25p,fast-read;
+	};
+};
+
 &uart5 {
 	status = "okay";
 };
-- 
2.33.0