From revision J the board uses new phy chip LAN8710. Compared
with RTL8201, RA17 pin is TXERR. It has pullup which causes phy not to work. To fix this PA17 is muxed with GMAC function. This makes the pin output-low.
Signed-off-by: Stefan Mavrodiev stefan@olimex.com --- arch/arm/dts/sun7i-a20-olinuxino-micro.dts | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/arch/arm/dts/sun7i-a20-olinuxino-micro.dts b/arch/arm/dts/sun7i-a20-olinuxino-micro.dts index 7e3006f..0bc5ea9 100644 --- a/arch/arm/dts/sun7i-a20-olinuxino-micro.dts +++ b/arch/arm/dts/sun7i-a20-olinuxino-micro.dts @@ -95,7 +95,7 @@
&gmac { pinctrl-names = "default"; - pinctrl-0 = <&gmac_pins_mii_a>; + pinctrl-0 = <&gmac_pins_mii_a>,<&gmac_txerr>; phy = <&phy1>; phy-mode = "mii"; status = "okay"; @@ -226,6 +226,13 @@ };
&pio { + gmac_txerr: gmac_txerr@0 { + allwinner,pins = "PA17"; + allwinner,function = "gpio_out"; + allwinner,drive = <SUN4I_PINCTRL_10_MA>; + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; + }; + mmc3_cd_pin_olinuxinom: mmc3_cd_pin@0 { allwinner,pins = "PH11"; allwinner,function = "gpio_in";