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 <[email protected]> Link: https://patch.msgid.link/[email protected] [ upstream commit: 81f116991433d2547d7f350873cb4511ebcd4fec ] (cherry picked from commit 51b234a762b64dd4d8b1f338b4abbcf7cfc748a4) --- .../src/arm64/rockchip/rk3568-qnap-ts433.dts | 62 +++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/dts/upstream/src/arm64/rockchip/rk3568-qnap-ts433.dts b/dts/upstream/src/arm64/rockchip/rk3568-qnap-ts433.dts index 5656554ca28..224db87973b 100644 --- a/dts/upstream/src/arm64/rockchip/rk3568-qnap-ts433.dts +++ b/dts/upstream/src/arm64/rockchip/rk3568-qnap-ts433.dts @@ -655,6 +655,68 @@ #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>; + }; + }; }; }; -- 2.47.2
