arm64: dts: freescale: tx8p-ml81: fix eqos nvmem-cells

[ Upstream commit cdf4e631eec5ddd49bb625df9fb144d6ecdd6f15 ]

On this SoM eqos is the primary ethernet interface, Ka-Ro fuses the
address for it in eth_mac1, eth_mac2 seems to be left unfused. In their
downstream u-boot they fetch it from eth_mac1 [1][2], by setting alias
of eqos to ethernet0, the driver then fetches the mac address based on
the alias number.

Set eqos to read from eth_mac1 instead of eth_mac2. Also set fec to
point at eth_mac2 as it may be fused later even though it is disabled
by default.

With this changed barebox is now capable of loading the correct address.

Link: https://github.com/karo-electronics/karo-tx-uboot/blob/380543278410bbf04264d80a3bfbe340b8e62439/drivers/net/dwc_eth_qos.c#L1167
Link: https://github.com/karo-electronics/karo-tx-uboot/blob/380543278410bbf04264d80a3bfbe340b8e62439/arch/arm/dts/imx8mp-karo.dtsi#L12
Fixes: bac63d7c5f46 ("arm64: dts: freescale: add Ka-Ro Electronics tx8p-ml81 COM")
Signed-off-by: Maud Spierings <maudspierings@gocontroll.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81.dtsi
index fe8ba16eb40e718d032a44fb74804df986b2d581..761ee046eb72ef08f38424d615f7001021b5ab03 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81.dtsi
@@ -47,6 +47,7 @@
                                 <&clk IMX8MP_SYS_PLL2_100M>,
                                 <&clk IMX8MP_SYS_PLL2_50M>;
        assigned-clock-rates = <266000000>, <100000000>, <50000000>;
+       nvmem-cells = <&eth_mac1>;
        phy-handle = <&ethphy0>;
        phy-mode = "rmii";
        pinctrl-0 = <&pinctrl_eqos>;
@@ -75,6 +76,10 @@
        };
 };
 
+&fec {
+       nvmem-cells = <&eth_mac2>;
+};
+
 &gpio1 {
        gpio-line-names = "SODIMM_152",
                          "SODIMM_42",