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arm64: dts: rockchip: describe mcu eeprom cells on rk3568-ts433

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The MCU's eeprom contains the unit's serial and a number of slots for
mac-addresses. As the MCU seems to be used in different devices, up to
8 mac addresses can live there and the unused slots are actually
initialized with empty mac-address strings like 00:00:00:00:05:09 .

Interestingly on the TS-433, the PCIe ethernet adapter brings its own
memory to hold its mac, and the gmac0 is supposed to get its mac from
the second mac-slot, while the first one stays empty.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20251112214206.423244-3-heiko@sntech.de
This commit is contained in:
Heiko Stuebner 2025-11-12 22:42:03 +01:00
parent 15efa24146
commit 81f1169914
1 changed files with 62 additions and 0 deletions
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62
arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts
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@ -655,6 +655,68 @@ fan: fan-0 {
#cooling-cells = <2>;
cooling-levels = <0 64 89 128 166 204 221 238>;
};
nvmem-layout {
compatible = "fixed-layout";
#address-cells = <1>;
#size-cells = <1>;
serial-number@0 {
reg = <0x0 0x13>;
};
ext-port@22 {
reg = <0x22 0x2>;
};
mac0: mac@24 {
compatible = "mac-base";
reg = <0x24 0x11>;
#nvmem-cell-cells = <1>;
};
mac1: mac@35 {
compatible = "mac-base";
reg = <0x35 0x11>;
#nvmem-cell-cells = <1>;
};
mac2: mac@46 {
compatible = "mac-base";
reg = <0x46 0x11>;
#nvmem-cell-cells = <1>;
};
mac3: mac@57 {
compatible = "mac-base";
reg = <0x57 0x11>;
#nvmem-cell-cells = <1>;
};
mac4: mac@68 {
compatible = "mac-base";
reg = <0x68 0x11>;
#nvmem-cell-cells = <1>;
};
mac5: mac@79 {
compatible = "mac-base";
reg = <0x79 0x11>;
#nvmem-cell-cells = <1>;
};
mac6: mac@8a {
compatible = "mac-base";
reg = <0x8a 0x11>;
#nvmem-cell-cells = <1>;
};
mac7: mac@9b {
compatible = "mac-base";
reg = <0x9b 0x11>;
#nvmem-cell-cells = <1>;
};
};
};
};