The Snowball Board's Ethernet chip is configured in a slightly non-standard way. Its SoC has an address space usually reserved for a NOR-flash device. However, on the Snowball, that external bus is populated by the SMSC9115 Ethernet chip. So, to power on the Ethernet chip, we have to enable the GPIO controlled regulator which usually controls the NOR-flash. In this patch we inform the Snowball's Device Tree which GPIO is used to operate it.
Signed-off-by: Lee Jones <[email protected]> --- arch/arm/boot/dts/snowball.dts | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/boot/dts/snowball.dts b/arch/arm/boot/dts/snowball.dts index 27f31a5..4733a96 100644 --- a/arch/arm/boot/dts/snowball.dts +++ b/arch/arm/boot/dts/snowball.dts @@ -134,6 +134,7 @@ reg = <0 0x10000>; interrupts = <12 0x1>; interrupt-parent = <&gpio4>; + vdd33a-supply = <&en_3v3_reg>; vddvario-supply = <&db8500_vape_reg>; @@ -153,6 +154,7 @@ bus-width = <4>; mmc-cap-mmc-highspeed; vmmc-supply = <&ab8500_ldo_aux3_reg>; + vqmmc-supply = <&vmmci>; cd-gpios = <&gpio6 26 0x4>; // 218 cd-inverted; @@ -346,5 +348,12 @@ }; }; }; + + vmmci: regulator-gpio { + gpios = <&gpio7 4 0x4>; // 228 + enable-gpio = <&gpio6 25 0x4>; // 217 + + status = "okay"; + }; }; }; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
