From: Ilya Ledvich <ilya@xxxxxxxxxxxxxx>
Add pinmux configuration for MMC0 pins.
Add fixed regulator 'vmmc_fixed'.
Enable MMC0 in 4-bit mode.
Signed-off-by: Ilya Ledvich <ilya@xxxxxxxxxxxxxx>
Signed-off-by: Uri Mashiach <uri.mashiach@xxxxxxxxxxxxxx>
Acked-by: Igor Grinberg <grinberg@xxxxxxxxxxxxxx>
---
v1 -> v2: integrate AM33XX_IOPAD macro in pinmux definitions
arch/arm/boot/dts/am335x-cm-t335.dts | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/arch/arm/boot/dts/am335x-cm-t335.dts b/arch/arm/boot/dts/am335x-cm-t335.dts
index 431b6dd..0a20256 100644
--- a/arch/arm/boot/dts/am335x-cm-t335.dts
+++ b/arch/arm/boot/dts/am335x-cm-t335.dts
@@ -31,6 +31,14 @@
linux,default-trigger = "heartbeat";
};
};
+
+ /* regulator for mmc */
+ vmmc_fixed: fixedregulator@0 {
+ compatible = "regulator-fixed";
+ regulator-name = "vmmc_fixed";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
};
&am33xx_pinmux {
@@ -105,6 +113,23 @@
AM33XX_IOPAD(0x974, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
>;
};
+
+ mmc1_pins: pinmux_mmc1_pins {
+ pinctrl-single,pins = <
+ /* mmc0_dat3.mmc0_dat3 */
+ AM33XX_IOPAD(0x8f0, PIN_INPUT_PULLUP | MUX_MODE0)
+ /* mmc0_dat2.mmc0_dat2 */
+ AM33XX_IOPAD(0x8f4, PIN_INPUT_PULLUP | MUX_MODE0)
+ /* mmc0_dat1.mmc0_dat1 */
+ AM33XX_IOPAD(0x8f8, PIN_INPUT_PULLUP | MUX_MODE0)
+ /* mmc0_dat0.mmc0_dat0 */
+ AM33XX_IOPAD(0x8fc, PIN_INPUT_PULLUP | MUX_MODE0)
+ /* mmc0_clk.mmc0_clk */
+ AM33XX_IOPAD(0x900, PIN_INPUT_PULLUP | MUX_MODE0)
+ /* mmc0_cmd.mmc0_cmd */
+ AM33XX_IOPAD(0x904, PIN_INPUT_PULLUP | MUX_MODE0)
+ >;
+ };
};
&uart0 {
@@ -204,3 +229,11 @@
status = "okay";
};
+&mmc1 {
+ status = "okay";
+ vmmc-supply = <&vmmc_fixed>;
+ bus-width = <4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins>;
+};
+
--
2.5.0
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