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arm64: dts: rockchip: Add EEPROMs for Radxa rk35xx boards

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The BL24C16A EEPROM is found in the schematics for Radxa CM3I, Radxa
ROCK 3A, 3B, 5B+, and 5T. [1] [2] [3] [4] [5]

The BL24C16F EEPROM is found in the schematic for Radxa ROCK 4D. [6]

Add these eeprom nodes.

These are designed to have data written during factory programming
(regardless of whether data is actually written or not), and we at
Radxa permit users to read the data but not write to it. [8]
Therefore, we will add a read-only property to the eeprom node.

[1] https://dl.radxa.com/cm3i/docs/hw/radxa_cm3i_v1310_schematic.pdf p.8
[2] https://dl.radxa.com/rock3/docs/hw/3a/radxa_rock_3a_v1310_schematic.pdf p.7
[3] https://dl.radxa.com/rock3/docs/hw/3b/Radxa_ROCK_3B_V1.51_SCH.pdf p.35
[4] https://dl.radxa.com/rock5/5b+/docs/hw/radxa_rock5bp_v1.2_schematic.pdf p.29
[5] https://dl.radxa.com/rock5/5t/docs/hw/radxa_rock5t_schematic_v1.2_20250109.pdf p.36
[6] https://dl.radxa.com/rock4/4d/docs/hw/Radxa_ROCK_4D_SCH_V1.12.pdf p.23
[7] https://github.com/radxa/u-boot/blob/next-dev-v2024.10/drivers/misc/radxa-i2c-eeprom.c

Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
Link: https://patch.msgid.link/20251202084941.1785-4-naoki@radxa.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
FUKAUMI Naoki 2025-12-02 08:49:41 +00:00 committed by Heiko Stuebner
parent 1b2d6b75e2
commit e3b12fc333
6 changed files with 59 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
arch/arm64/boot/dts/rockchip/rk3568-radxa-cm3i.dtsi
View File

@ -321,7 +321,7 @@ regulator-state-mem {
};
};
vcc_3v3: SWITCH_REG1 {
gpio_vref: vcc_3v3: SWITCH_REG1 {
regulator-name = "vcc_3v3";
regulator-always-on;
regulator-boot-on;
@ -340,6 +340,14 @@ regulator-state-mem {
};
};
};
eeprom@50 {
compatible = "belling,bl24c16a", "atmel,24c16";
reg = <0x50>;
pagesize = <16>;
read-only;
vcc-supply = <&gpio_vref>;
};
};
&pinctrl {

8
arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
View File

@ -532,6 +532,14 @@ regulator-state-mem {
};
};
};
eeprom@50 {
compatible = "belling,bl24c16a", "atmel,24c16";
reg = <0x50>;
pagesize = <16>;
read-only;
vcc-supply = <&vcc3v3_pmu>;
};
};
&i2c3 {

8
arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts
View File

@ -480,6 +480,14 @@ regulator-state-mem {
};
};
};
eeprom@50 {
compatible = "belling,bl24c16a", "atmel,24c16";
reg = <0x50>;
pagesize = <16>;
read-only;
vcc-supply = <&vcc3v3_sys>;
};
};
&i2c5 {

14
arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts
View File

@ -682,6 +682,20 @@ hym8563: rtc@51 {
};
};
&i2c6 {
pinctrl-names = "default";
pinctrl-0 = <&i2c6m3_xfer>;
status = "okay";
eeprom@50 {
compatible = "belling,bl24c16f", "atmel,24c16";
reg = <0x50>;
pagesize = <16>;
read-only;
vcc-supply = <&vcc_3v3_s3>;
};
};
&mdio0 {
rgmii_phy0: ethernet-phy@1 {
compatible = "ethernet-phy-id001c.c916";

10
arch/arm64/boot/dts/rockchip/rk3588-rock-5b-plus.dts
View File

@ -69,6 +69,16 @@ wwan-wake-n-hog {
};
};
&i2c1 {
eeprom@50 {
compatible = "belling,bl24c16a", "atmel,24c16";
reg = <0x50>;
pagesize = <16>;
read-only;
vcc-supply = <&vcc_3v3_s3>;
};
};
&pcie30phy {
data-lanes = <1 1 2 2>;
};

10
arch/arm64/boot/dts/rockchip/rk3588-rock-5t.dts
View File

@ -60,6 +60,16 @@ &hdmi_receiver {
status = "okay";
};
&i2c1 {
eeprom@50 {
compatible = "belling,bl24c16a", "atmel,24c16";
reg = <0x50>;
pagesize = <16>;
read-only;
vcc-supply = <&vcc_3v3_s3>;
};
};
&pcie2x1l1 {
pinctrl-names = "default";
pinctrl-0 = <&pcie2_1_rst>;