From: Christopher Spinrath <christopher.spinrath@xxxxxxxxxxxxxx>
The Utilite Pro has a mmc card slot connected to the usdhc3
controller. There is no card detection until hardware revision 1.3.
Add support for it and signal the controller with the broken-cd
property that polling has to be used to detect a card.
Signed-off-by: Christopher Spinrath <christopher.spinrath@xxxxxxxxxxxxxx>
---
Notes:
Changes since v1:
- enhance commit message to explain to the broken-cd property
arch/arm/boot/dts/imx6q-utilite-pro.dts | 44 +++++++++++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/arch/arm/boot/dts/imx6q-utilite-pro.dts b/arch/arm/boot/dts/imx6q-utilite-pro.dts
index 7219745..6199063 100644
--- a/arch/arm/boot/dts/imx6q-utilite-pro.dts
+++ b/arch/arm/boot/dts/imx6q-utilite-pro.dts
@@ -130,6 +130,39 @@
MX6QDL_PAD_SD4_DAT6__UART2_CTS_B 0x1b0b1
>;
};
+
+ pinctrl_usdhc3: usdhc3grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD3_CMD__SD3_CMD 0x17059
+ MX6QDL_PAD_SD3_CLK__SD3_CLK 0x10059
+ MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x17059
+ MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x17059
+ MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x17059
+ MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x17059
+ >;
+ };
+
+ pinctrl_usdhc3_100mhz: usdhc3grp-100mhz {
+ fsl,pins = <
+ MX6QDL_PAD_SD3_CMD__SD3_CMD 0x170B9
+ MX6QDL_PAD_SD3_CLK__SD3_CLK 0x100B9
+ MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x170B9
+ MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x170B9
+ MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x170B9
+ MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x170B9
+ >;
+ };
+
+ pinctrl_usdhc3_200mhz: usdhc3grp-200mhz {
+ fsl,pins = <
+ MX6QDL_PAD_SD3_CMD__SD3_CMD 0x170F9
+ MX6QDL_PAD_SD3_CLK__SD3_CLK 0x100F9
+ MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x170F9
+ MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x170F9
+ MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x170F9
+ MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x170F9
+ >;
+ };
};
&pcie {
@@ -151,3 +184,14 @@
uart-has-rtscts;
status = "okay";
};
+
+&usdhc3 {
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc3>;
+ pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
+ pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
+ no-1-8-v;
+ broken-cd;
+ keep-power-in-suspend;
+ status = "okay";
+};
--
2.8.3
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
