[PATCH] arm64: dts: imx8mp: Describe M24C32-D write-lockable page in DH i.MX8MP DHCOM DT

Marek Vasut marex at denx.de
Sun Oct 15 13:01:24 PDT 2023


The i.MX8MP DHCOM SoM production rev.200 is populated with M24C32-D
EEPROMs which have Additional Write lockable page at separate I2C
address. Describe the page in DT to make it available.

Signed-off-by: Marek Vasut <marex at denx.de>
---
NOTE: The labels are there so they can be used by U-Boot and DTOs
NOTE: Depends on currently linux-next next-20231013
      c761068f484c ("dt-bindings: at24: add ST M24C32-D Additional Write lockable page")
      4791146e9055 ("eeprom: at24: add ST M24C32-D Additional Write lockable page support")
---
Cc: Conor Dooley <conor+dt at kernel.org>
Cc: Fabio Estevam <festevam at gmail.com>
Cc: Frieder Schrempf <frieder.schrempf at kontron.de>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt at linaro.org>
Cc: Marco Felsch <m.felsch at pengutronix.de>
Cc: NXP Linux Team <linux-imx at nxp.com>
Cc: Pengutronix Kernel Team <kernel at pengutronix.de>
Cc: Rob Herring <robh+dt at kernel.org>
Cc: Sascha Hauer <s.hauer at pengutronix.de>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: devicetree at vger.kernel.org
Cc: linux-arm-kernel at lists.infradead.org
---
 arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi
index d8963f32ec84c..4ae4fdab461e0 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi
@@ -420,6 +420,18 @@ eeprom1: eeprom at 53 {	/* EEPROM with FEC MAC address */
 		reg = <0x53>;
 	};
 
+	eeprom0wl: eeprom at 58 {
+		compatible = "atmel,24c32d-wl";	/* M24C32-D WL page of 0x50 */
+		pagesize = <32>;
+		reg = <0x58>;
+	};
+
+	eeprom1wl: eeprom at 5b {
+		compatible = "atmel,24c32d-wl";	/* M24C32-D WL page of 0x53 */
+		pagesize = <32>;
+		reg = <0x5b>;
+	};
+
 	ioexp: gpio at 74 {
 		compatible = "nxp,pca9539";
 		reg = <0x74>;
-- 
2.42.0




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