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arm64: dts: rockchip: pull down rst-gpio of gmac-phy at suspend for rk3399-box

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Some phys would not enter low power mode by writing 'power down'
bit into phy common register0 such as RTL8211E. And pulling down
reset gpio is also a common way to make phy get low consumption,
if the supplied regulator of phy could not be disabled at suspend.

Change-Id: Ib01f48ec8c0bdec633868bb79e4155561ca6c471
Signed-off-by: David Wu <david.wu@rock-chips.com>
This commit is contained in:
David Wu
2016-09-09 12:21:42 +08:00
committed by Huang, Tao
parent 9eae9656e2
commit 9e5ea06cc7
1 changed files with 9 additions and 1 deletions
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10
arch/arm64/boot/dts/rockchip/rk3399-box.dtsi
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@@ -928,8 +928,9 @@
snps,reset-delays-us = <0 10000 50000>;
assigned-clocks = <&cru SCLK_RMII_SRC>;
assigned-clock-parents = <&clkin_gmac>;
pinctrl-names = "default";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&rgmii_pins>;
pinctrl-1 = <&rgmii_sleep_pins>;
tx_delay = <0x28>;
rx_delay = <0x11>;
status = "okay";
@@ -1003,4 +1004,11 @@
<1 21 RK_FUNC_GPIO &pcfg_pull_up>;
};
};
gmac {
rgmii_sleep_pins: rgmii-sleep-pins {
rockchip,pins =
<3 15 RK_FUNC_GPIO &pcfg_output_low>;
};
};
};