The Toradex board Iris V2 has a SD-card slot with switchable
power.
Add a pinctrl sleep used when the card power is off to avoid
backfeeding to the card and add the "sleep" pinctrl to the
usdhc1 controller.
Signed-off-by: Max Krummenacher <[email protected]>
---
arch/arm/boot/dts/imx6qdl-colibri.dtsi | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/imx6qdl-colibri.dtsi b/arch/arm/boot/dts/imx6qdl-colibri.dtsi
index 1c3c34bbfe98..c383e0e4110c 100644
--- a/arch/arm/boot/dts/imx6qdl-colibri.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-colibri.dtsi
@@ -680,10 +680,11 @@
bus-width = <4>;
no-1-8-v;
disable-wp;
- pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
pinctrl-0 = <&pinctrl_usdhc1 &pinctrl_mmc_cd>;
pinctrl-1 = <&pinctrl_usdhc1_100mhz &pinctrl_mmc_cd>;
pinctrl-2 = <&pinctrl_usdhc1_200mhz &pinctrl_mmc_cd>;
+ pinctrl-3 = <&pinctrl_usdhc1_sleep &pinctrl_mmc_cd_sleep>;
vmmc-supply = <®_module_3v3>;
vqmmc-supply = <&vgen3_reg>;
status = "disabled";
@@ -951,6 +952,12 @@
>;
};
+ pinctrl_mmc_cd_sleep: mmccdslpgrp {
+ fsl,pins = <
+ MX6QDL_PAD_NANDF_D5__GPIO2_IO05 0x0
+ >;
+ };
+
pinctrl_pwm1: pwm1grp {
fsl,pins = <
MX6QDL_PAD_GPIO_9__PWM1_OUT 0x1b0b1
@@ -1097,6 +1104,18 @@
>;
};
+ /* avoid backfeeding with removed card power */
+ pinctrl_usdhc1_sleep: usdhc1sleepgrp {
+ fsl,pins = <
+ MX6QDL_PAD_SD1_CMD__SD1_CMD 0x3000
+ MX6QDL_PAD_SD1_CLK__SD1_CLK 0x3000
+ MX6QDL_PAD_SD1_DAT0__SD1_DATA0 0x3000
+ MX6QDL_PAD_SD1_DAT1__SD1_DATA1 0x3000
+ MX6QDL_PAD_SD1_DAT2__SD1_DATA2 0x3000
+ MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x3000
+ >;
+ };
+
pinctrl_usdhc3: usdhc3grp {
fsl,pins = <
MX6QDL_PAD_SD3_CMD__SD3_CMD 0x17059
--
2.20.1