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sunxi: R40: add gigabit ethernet devicetree node

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Add a device tree node for the Allwinner R40/V40 GMAC gigabit
ethernet interface.
The R40 SoC does not use the syscon register for GMAC settings.
The gigabit ethernet interface can only be routed to a fixed set of
pins.
Updated to match the Linux kernel's device tree.

Signed-off-by: Lothar Felten <lothar.felten@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Tested-by: Jagan Teki <jagan@openedev.com>
This commit is contained in:
Lothar Felten 2018-07-13 10:45:29 +02:00 committed by Jagan Teki
parent e46d73fa96
commit 3c2abf5019
1 changed files with 34 additions and 0 deletions
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34
arch/arm/dts/sun8i-r40.dtsi
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@ -161,6 +161,19 @@
#interrupt-cells = <3>;
#gpio-cells = <3>;
gmac_rgmii_pins: gmac-rgmii-pins {
pins = "PA0", "PA1", "PA2", "PA3",
"PA4", "PA5", "PA6", "PA7",
"PA8", "PA10", "PA11", "PA12",
"PA13", "PA15", "PA16";
function = "gmac";
/*
* data lines in RGMII mode use DDR mode
* and need a higher signal drive strength
*/
drive-strength = <40>;
};
i2c0_pins: i2c0_pins {
pins = "PB0", "PB1";
function = "i2c0";
@ -202,6 +215,27 @@
#size-cells = <0>;
};
gmac: ethernet@1c50000 {
compatible = "allwinner,sun8i-r40-gmac";
syscon = <&ccu>;
reg = <0x01c50000 0x10000>;
interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "macirq";
resets = <&ccu RST_BUS_GMAC>;
reset-names = "stmmaceth";
clocks = <&ccu CLK_BUS_GMAC>;
clock-names = "stmmaceth";
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
gmac_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>,