2024-06-04 06:27:55

by Mike Looijmans

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

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 <[email protected]>
---

.../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: [email protected]
W: http://www.topic.nl

Please consider the environment before printing this e-mail

2024-06-16 12:23:06

by Shawn Guo

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

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 <[email protected]>

Applied, thanks!