From: Corentin LABBE <clabbe.montjoie@xxxxxxxxx>
The dwmac-sun8i is an ethernet MAC hardware that support 10/100/1000 speed.
This patch add support for it on the Allwinner a83t SoC Device-tree.
This patch add the emac device node and the related RGMII pins node.
Signed-off-by: Corentin Labbe <clabbe.montjoie@xxxxxxxxx>
Reviewed-by: Chen-Yu Tsai <wens@xxxxxxxx>
Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx>
---
arch/arm/boot/dts/sun8i-a83t.dtsi | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi
index 19acae1b4089..a384b766f3dc 100644
--- a/arch/arm/boot/dts/sun8i-a83t.dtsi
+++ b/arch/arm/boot/dts/sun8i-a83t.dtsi
@@ -336,6 +336,18 @@
#interrupt-cells = <3>;
#gpio-cells = <3>;
+ emac_rgmii_pins: emac-rgmii-pins {
+ pins = "PD2", "PD3", "PD4", "PD5", "PD6", "PD7",
+ "PD11", "PD12", "PD13", "PD14", "PD18",
+ "PD19", "PD21", "PD22", "PD23";
+ function = "gmac";
+ /*
+ * data lines in RGMII mode use DDR mode
+ * and need a higher signal drive strength
+ */
+ drive-strength = <40>;
+ };
+
mmc0_pins: mmc0-pins {
pins = "PF0", "PF1", "PF2",
"PF3", "PF4", "PF5";
@@ -440,6 +452,27 @@
status = "disabled";
};
+ emac: ethernet@1c30000 {
+ compatible = "allwinner,sun8i-a83t-emac";
+ syscon = <&syscon>;
+ reg = <0x01c30000 0x104>;
+ interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "macirq";
+ resets = <&ccu 13>;
+ reset-names = "stmmaceth";
+ clocks = <&ccu 27>;
+ clock-names = "stmmaceth";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ mdio: mdio {
+ compatible = "snps,dwmac-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+
gic: interrupt-controller@1c81000 {
compatible = "arm,cortex-a7-gic", "arm,cortex-a15-gic";
reg = <0x01c81000 0x1000>,
--
2.15.0
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