linux-kernel - [PATCH 1/2] ARM: dts: ixp4xx-nslu2: Enable write on flash

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Message-Id: <20230908-ixp4xx-dts-v1-1-98d36264ed6d@linaro.org>
Date:   Fri, 08 Sep 2023 12:49:48 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Linus Walleij <linusw@...nel.org>, Imre Kaloz <kaloz@...nwrt.org>,
        Krzysztof Halasa <khalasa@...p.pl>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 1/2] ARM: dts: ixp4xx-nslu2: Enable write on flash

To upgrade the firmware and similar, the flash needs write
access.

Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
 arch/arm/boot/dts/intel/ixp/intel-ixp42x-linksys-nslu2.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/intel/ixp/intel-ixp42x-linksys-nslu2.dts b/arch/arm/boot/dts/intel/ixp/intel-ixp42x-linksys-nslu2.dts
index da1e93212b86..706ba531faf0 100644
--- a/arch/arm/boot/dts/intel/ixp/intel-ixp42x-linksys-nslu2.dts
+++ b/arch/arm/boot/dts/intel/ixp/intel-ixp42x-linksys-nslu2.dts
@@ -101,6 +101,8 @@ bus@...00000 {
 			flash@0,0 {
 				compatible = "intel,ixp4xx-flash", "cfi-flash";
 				bank-width = <2>;
+				/* Enable writes on the expansion bus */
+				intel,ixp4xx-eb-write-enable = <1>;
 				/*
 				 * 8 MB of Flash in 0x20000 byte blocks
 				 * mapped in at CS0.

-- 
2.41.0