[PATCH] arm64: dts: ls1028a-rdb: Add EEPROM nodes to I2C bus

[PATCH] arm64: dts: ls1028a-rdb: Add EEPROM nodes to I2C bus

[Mike Looijmans]

The LS1028ARDB board contains three EEPROM devices, for
storing boot code, DDR SPD and board information. Add the
missing entries to the devicetree.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
---

 .../boot/dts/freescale/fsl-ls1028a-rdb.dts    | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
index ecd2c1ea177f..757a34ba7da3 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
@@ -201,6 +201,37 @@ i2c-mux@77 {
 		#address-cells = <1>;
 		#size-cells = <0>;
 
+		i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x0>;
+
+			/* Atmel AT24C512C-XHD­B: 64 KB EEPROM */
+			eeprom@50 {
+				compatible = "atmel,24c512";
+				reg = <0x50>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+			};
+
+			/* AT24C04C 512-byte DDR4 SPD EEPROM */
+			/* Documentation says 0x51, but must be even and i2cdetect says 0x52 */
+			eeprom@52 {
+				compatible = "atmel,24c04";
+				reg = <0x52>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+			};
+
+			/* Atmel AT24C02C-XHM­B: 256-byte EEPROM */
+			eeprom@57 {
+				compatible = "atmel,24c02";
+				reg = <0x57>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+			};
+		};
+
 		i2c@1 {
 			#address-cells = <1>;
 			#size-cells = <0>;
-- 
2.34.1


Met vriendelijke groet / kind regards,

Mike Looijmans
System Expert


TOPIC Embedded Products B.V.
Materiaalweg 4, 5681 RJ Best
The Netherlands

T: +31 (0) 499 33 69 69
E: mike.looijmans@topic.nl
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Re: [PATCH] arm64: dts: ls1028a-rdb: Add EEPROM nodes to I2C bus

[Shawn Guo]

On Tue, Jun 04, 2024 at 08:27:22AM +0200, Mike Looijmans wrote:
> The LS1028ARDB board contains three EEPROM devices, for
> storing boot code, DDR SPD and board information. Add the
> missing entries to the devicetree.
> 
> Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>

Applied, thanks!