arm64: dts: apalis-imx8: Add 1v8 SD support

Fix UHS 1v8 mode support for Apalis iMX8 board enabling complete USDHC
functionality on the SoM dtsi file, but disable 1.8V card voltage for
Apalis Evaluation board and Ixora 1.1 where pull-up to 3.3V are present.

Enable usdhc pinctrl definition for high speed mode on Ixora 1.2 dts.

With these changes UHS104 is working fine on Ixora 1.2.

Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Fixes: 17be987ed70b ("ARM64: dts: apalis-imx8: use non-uhs sd-mode by default")

1 files changed, 0 insertions, 22 deletions

diff --git a/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi b/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi
index 7befeac7a834..b8ad25967bfd 100644
--- a/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi
@@ -1788,42 +1788,20 @@
 
 /* Apalis MMC1 */
 &usdhc2 {
-/*
- * The define SD_1_8 allows to use the SD interface at a higher speed mode
- * if the card supports it. For this the signaling voltage is switched from
- * 3.3V to 1.8V under the usdhc2's drivers control.
- * However the by default placed pull-up resistors on SD data lines on Apalis
- * Carrier Boards (except Ixora V1.2) are interfering with UHS's 1.8V signaling
- * voltage. Remove those pull-ups on the carrier board for UHS usage.
- */
-// #define SD_1_8
-#ifdef SD_1_8
 	pinctrl-names = "default", "state_100mhz", "state_200mhz";
 	pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_mmc1_cd>;
 	pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_mmc1_cd>;
 	pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_mmc1_cd>;
-#else
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_mmc1_cd>;
-	no-1-8-v;
-#endif
 	bus-width = <8>;
 	cd-gpios = <&lsio_gpio2 9 GPIO_ACTIVE_LOW>; /* Apalis MMC1_CD# */
 };
 
 /* Apalis SD1 */
 &usdhc3 {
-// #define SD_1_8
-#ifdef SD_1_8
 	pinctrl-names = "default", "state_100mhz", "state_200mhz";
 	pinctrl-0 = <&pinctrl_usdhc3>, <&pinctrl_sd1_cd>;
 	pinctrl-1 = <&pinctrl_usdhc3_100mhz>, <&pinctrl_sd1_cd>;
 	pinctrl-2 = <&pinctrl_usdhc3_200mhz>, <&pinctrl_sd1_cd>;
-#else
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_usdhc3>, <&pinctrl_sd1_cd>;
-	no-1-8-v;
-#endif
 	bus-width = <4>;
 	cd-gpios = <&lsio_gpio4 12 GPIO_ACTIVE_LOW>; /* Apalis SD1_CD# */
 };