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ARM: dts: imx23-evk: updates for mmc device

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The 8-bit mode mmc has pin conflicts with display.  Let's use 4-bit
mode by default, so that display can be enabled together later.

Also add vmmc-supply for mmc device.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
This commit is contained in:
Shawn Guo 2012-06-28 11:44:59 +08:00
parent d54dbb5000
commit 72beabae63
2 changed files with 31 additions and 2 deletions
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17
arch/arm/boot/dts/imx23-evk.dts
View File

@ -25,9 +25,10 @@
ssp0: ssp@80010000 {
compatible = "fsl,imx23-mmc";
pinctrl-names = "default";
pinctrl-0 = <&mmc0_8bit_pins_a &mmc0_pins_fixup>;
bus-width = <8>;
pinctrl-0 = <&mmc0_4bit_pins_a &mmc0_pins_fixup>;
bus-width = <4>;
wp-gpios = <&gpio1 30 0>;
vmmc-supply = <&reg_vddio_sd0>;
status = "okay";
};
@ -57,4 +58,16 @@
};
};
};
regulators {
compatible = "simple-bus";
reg_vddio_sd0: vddio-sd0 {
compatible = "regulator-fixed";
regulator-name = "vddio-sd0";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio1 29 0>;
};
};
};

16
arch/arm/boot/dts/imx23.dtsi
View File

@ -123,6 +123,22 @@
fsl,pull-up = <0>;
};
mmc0_4bit_pins_a: mmc0-4bit@0 {
reg = <0>;
fsl,pinmux-ids = <
0x2020 /* MX23_PAD_SSP1_DATA0__SSP1_DATA0 */
0x2030 /* MX23_PAD_SSP1_DATA1__SSP1_DATA1 */
0x2040 /* MX23_PAD_SSP1_DATA2__SSP1_DATA2 */
0x2050 /* MX23_PAD_SSP1_DATA3__SSP1_DATA3 */
0x2000 /* MX23_PAD_SSP1_CMD__SSP1_CMD */
0x2010 /* MX23_PAD_SSP1_DETECT__SSP1_DETECT */
0x2060 /* MX23_PAD_SSP1_SCK__SSP1_SCK */
>;
fsl,drive-strength = <1>;
fsl,voltage = <1>;
fsl,pull-up = <1>;
};
mmc0_8bit_pins_a: mmc0-8bit@0 {
reg = <0>;
fsl,pinmux-ids = <