On SBC-T43 the mmc1 interface is connected to an SD-Card slot.
Add the necessary muxing and configuration to the device tree.
Signed-off-by: Nikita Kiryanov <nik...@compulab.co.il>
Cc: Tony Lindgren <t...@atomide.com>
Cc: Benoit Cousson <bcous...@baylibre.com>
Cc: Rob Herring <r...@kernel.org>
Cc: Mark Rutland <mark.rutl...@arm.com>
Cc: Pawel Moll <pawel.m...@arm.com>
Cc: Igor Grinberg <grinb...@compulab.co.il>
Cc: Dmitry Lifshitz <lifsh...@compulab.co.il>
Cc: Ian Campbell <ijc+devicet...@hellion.org.uk>
---
Changes in V2:
- No changes.
arch/arm/boot/dts/am437x-sbc-t43.dts | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/arch/arm/boot/dts/am437x-sbc-t43.dts
b/arch/arm/boot/dts/am437x-sbc-t43.dts
index 46b2831..6b51151 100644
--- a/arch/arm/boot/dts/am437x-sbc-t43.dts
+++ b/arch/arm/boot/dts/am437x-sbc-t43.dts
@@ -7,6 +7,7 @@
*/
#include "am437x-cm-t43.dts"
+#include "compulab-sb-som.dtsi"
/ {
model = "CompuLab CM-T43 on SB-SOM-T43";
@@ -14,6 +15,19 @@
};
&am43xx_pinmux {
+ mmc1_pins: pinmux_mmc1_pins {
+ pinctrl-single,pins = <
+ AM4372_IOPAD(0x900, PIN_INPUT_PULLUP | MUX_MODE0) /*
mmc0_clk.mmc0_clk */
+ AM4372_IOPAD(0x904, PIN_INPUT_PULLUP | MUX_MODE0) /*
mmc0_cmd.mmc0_cmd */
+ AM4372_IOPAD(0x8f0, PIN_INPUT_PULLUP | MUX_MODE0) /*
mmc0_dat0.mmc0_dat0 */
+ AM4372_IOPAD(0x8f4, PIN_INPUT_PULLUP | MUX_MODE0) /*
mmc0_dat1.mmc0_dat1 */
+ AM4372_IOPAD(0x8f8, PIN_INPUT_PULLUP | MUX_MODE0) /*
mmc0_dat2.mmc0_dat2 */
+ AM4372_IOPAD(0x8fc, PIN_INPUT_PULLUP | MUX_MODE0) /*
mmc0_dat3.mmc0_dat3 */
+ AM4372_IOPAD(0x960, PIN_INPUT | MUX_MODE7) /*
spi0_cs1.gpio0_6 */
+ AM4372_IOPAD(0x964, PIN_INPUT | MUX_MODE7) /*
ecap0_in_pwm0_out.gpio0_7 */
+ >;
+ };
+
uart0_pins_default: uart0_pins_default {
pinctrl-single,pins = <
AM4372_IOPAD(0x968, DS0_PULL_UP_DOWN_EN | INPUT_EN |
MUX_MODE0)
@@ -75,6 +89,16 @@
pinctrl-0 = <&i2c2_pins>;
};
+&mmc1 {
+ status = "okay";
+ bus-width = <4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins>;
+ vmmc-supply = <&vsb_3v3>;
+ cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
+ wp-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
+};
+
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_default>;
--
1.9.1
--
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