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ARM: dts: sun8i: r40: Add device node and RGMII pinmux node for GMAC

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The R40 SoC has a GMAC (gigabit capable Ethernet controller). Add a
device node for it. The only publicly available board for this SoC
uses an RGMII PHY. Add a pinmux node for it as well.

Since this SoC also has an old 10/100 Mbps EMAC, which also has an
MDIO bus controller, the MDIO bus for the GMAC is labeled "gmac_mdio".

Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
This commit is contained in:
Chen-Yu Tsai 2018-05-02 00:12:24 +08:00
parent 02b301f5d1
commit 76f803223b
1 changed files with 34 additions and 0 deletions
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34
arch/arm/boot/dts/sun8i-r40.dtsi
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@ -265,6 +265,19 @@
#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";
@ -451,6 +464,27 @@
#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,gic-400";
reg = <0x01c81000 0x1000>,