Some Ventana boards have a Marvell sky2 GigE controller as eth1 however assigning the mac address through device-tree is difficult because the PCI slot can move around depending on board configuration and slot population.
To work around this we add a patch to the sky2 driver to allow accessing its mac address via a device-tree alias. Signed-off-by: Tim Harvey <[email protected]> Signed-off-by: Pushpal Sidhu <[email protected]> --- .../208-sky2-allow-mac-to-come-from-dt.patch | 30 ++++++++++++++++++++++ .../209-ARM-imx-ventana-add-sky2-alias.patch | 24 +++++++++++++++++ 2 files changed, 54 insertions(+) create mode 100644 target/linux/imx6/patches-4.3/208-sky2-allow-mac-to-come-from-dt.patch create mode 100644 target/linux/imx6/patches-4.3/209-ARM-imx-ventana-add-sky2-alias.patch diff --git a/target/linux/imx6/patches-4.3/208-sky2-allow-mac-to-come-from-dt.patch b/target/linux/imx6/patches-4.3/208-sky2-allow-mac-to-come-from-dt.patch new file mode 100644 index 0000000..7a29846 --- /dev/null +++ b/target/linux/imx6/patches-4.3/208-sky2-allow-mac-to-come-from-dt.patch @@ -0,0 +1,30 @@ +Index: linux-4.3/drivers/net/ethernet/marvell/sky2.c +=================================================================== +--- linux-4.3.orig/drivers/net/ethernet/marvell/sky2.c 2015-11-01 16:05:25.000000000 -0800 ++++ linux-4.3/drivers/net/ethernet/marvell/sky2.c 2015-12-18 10:39:44.983158318 -0800 +@@ -4812,7 +4812,24 @@ + * 1) from device tree data + * 2) from internal registers set by bootloader + */ +- iap = of_get_mac_address(hw->pdev->dev.of_node); ++ ++ iap = NULL; ++ if (IS_ENABLED(CONFIG_OF)) { ++ struct device_node *np; ++ np = of_find_node_by_path("/aliases"); ++ if (np) { ++ const char *path = of_get_property(np, "sky2", NULL); ++ if (path) ++ np = of_find_node_by_path(path); ++ if (np) ++ path = of_get_mac_address(np); ++ if (path) ++ iap = (unsigned char *) path; ++ } ++ } ++ ++ if (!iap) ++ iap = of_get_mac_address(hw->pdev->dev.of_node); + if (iap) + memcpy(dev->dev_addr, iap, ETH_ALEN); + else diff --git a/target/linux/imx6/patches-4.3/209-ARM-imx-ventana-add-sky2-alias.patch b/target/linux/imx6/patches-4.3/209-ARM-imx-ventana-add-sky2-alias.patch new file mode 100644 index 0000000..7377ce3 --- /dev/null +++ b/target/linux/imx6/patches-4.3/209-ARM-imx-ventana-add-sky2-alias.patch @@ -0,0 +1,24 @@ +Index: linux-4.3/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi +=================================================================== +--- linux-4.3.orig/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi 2015-12-18 10:39:44.959158318 -0800 ++++ linux-4.3/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi 2015-12-18 10:43:21.000000000 -0800 +@@ -15,6 +15,7 @@ + /* these are used by bootloader for disabling nodes */ + aliases { + ethernet1 = ð1; ++ sky2 = ð1; + led0 = &led0; + led1 = &led1; + led2 = &led2; +Index: linux-4.3/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi +=================================================================== +--- linux-4.3.orig/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi 2015-12-18 10:39:44.959158318 -0800 ++++ linux-4.3/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi 2015-12-18 10:43:21.000000000 -0800 +@@ -15,6 +15,7 @@ + /* these are used by bootloader for disabling nodes */ + aliases { + ethernet1 = ð1; ++ sky2 = ð1; + led0 = &led0; + led1 = &led1; + led2 = &led2; -- 2.6.4 _______________________________________________ openwrt-devel mailing list [email protected] https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
