2019-11-06 09:52:32

by Anson Huang

Subject: [PATCH 2/3] ARM: dts: imx6sll-evk: Add eMMC support

i.MX6SLL EVK board has eMMC connected on uSDHC2, add support
for it.

Signed-off-by: Anson Huang <[email protected]>
---
arch/arm/boot/dts/imx6sll-evk.dts | 67 +++++++++++++++++++++++++++++++++++++++
1 file changed, 67 insertions(+)

diff --git a/arch/arm/boot/dts/imx6sll-evk.dts b/arch/arm/boot/dts/imx6sll-evk.dts
index 3e1d32f..29b284c 100644
--- a/arch/arm/boot/dts/imx6sll-evk.dts
+++ b/arch/arm/boot/dts/imx6sll-evk.dts
@@ -109,6 +109,14 @@
enable-active-high;
};

+ reg_sd2_vmmc: regulator-sd2-vmmc {
+ compatible = "regulator-fixed";
+ regulator-name = "eMMC-VCCQ";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ };
+
reg_sd3_vmmc: regulator-sd3-vmmc {
compatible = "regulator-fixed";
pinctrl-names = "default";
@@ -314,6 +322,17 @@
status = "okay";
};

+&usdhc2 {
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc2>;
+ pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
+ pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
+ vqmmc-supply = <&reg_sd2_vmmc>;
+ bus-width = <8>;
+ no-removable;
+ status = "okay";
+};
+
&usdhc3 {
pinctrl-names = "default", "state_100mhz", "state_200mhz";
pinctrl-0 = <&pinctrl_usdhc3>;
@@ -403,6 +422,54 @@
>;
};

+ pinctrl_usdhc2: usdhc2grp {
+ fsl,pins = <
+ MX6SLL_PAD_SD2_CMD__SD2_CMD 0x17059
+ MX6SLL_PAD_SD2_CLK__SD2_CLK 0x13059
+ MX6SLL_PAD_SD2_DATA0__SD2_DATA0 0x17059
+ MX6SLL_PAD_SD2_DATA1__SD2_DATA1 0x17059
+ MX6SLL_PAD_SD2_DATA2__SD2_DATA2 0x17059
+ MX6SLL_PAD_SD2_DATA3__SD2_DATA3 0x17059
+ MX6SLL_PAD_SD2_DATA4__SD2_DATA4 0x17059
+ MX6SLL_PAD_SD2_DATA5__SD2_DATA5 0x17059
+ MX6SLL_PAD_SD2_DATA6__SD2_DATA6 0x17059
+ MX6SLL_PAD_SD2_DATA7__SD2_DATA7 0x17059
+ MX6SLL_PAD_GPIO4_IO21__SD2_STROBE 0x413059
+ >;
+ };
+
+ pinctrl_usdhc2_100mhz: usdhc2grp_100mhz {
+ fsl,pins = <
+ MX6SLL_PAD_SD2_CMD__SD2_CMD 0x170b9
+ MX6SLL_PAD_SD2_CLK__SD2_CLK 0x130b9
+ MX6SLL_PAD_SD2_DATA0__SD2_DATA0 0x170b9
+ MX6SLL_PAD_SD2_DATA1__SD2_DATA1 0x170b9
+ MX6SLL_PAD_SD2_DATA2__SD2_DATA2 0x170b9
+ MX6SLL_PAD_SD2_DATA3__SD2_DATA3 0x170b9
+ MX6SLL_PAD_SD2_DATA4__SD2_DATA4 0x170b9
+ MX6SLL_PAD_SD2_DATA5__SD2_DATA5 0x170b9
+ MX6SLL_PAD_SD2_DATA6__SD2_DATA6 0x170b9
+ MX6SLL_PAD_SD2_DATA7__SD2_DATA7 0x170b9
+ MX6SLL_PAD_GPIO4_IO21__SD2_STROBE 0x4130b9
+ >;
+ };
+
+ pinctrl_usdhc2_200mhz: usdhc2grp_200mhz {
+ fsl,pins = <
+ MX6SLL_PAD_SD2_CMD__SD2_CMD 0x170f9
+ MX6SLL_PAD_SD2_CLK__SD2_CLK 0x130f9
+ MX6SLL_PAD_SD2_DATA0__SD2_DATA0 0x170f9
+ MX6SLL_PAD_SD2_DATA1__SD2_DATA1 0x170f9
+ MX6SLL_PAD_SD2_DATA2__SD2_DATA2 0x170f9
+ MX6SLL_PAD_SD2_DATA3__SD2_DATA3 0x170f9
+ MX6SLL_PAD_SD2_DATA4__SD2_DATA4 0x170f9
+ MX6SLL_PAD_SD2_DATA5__SD2_DATA5 0x170f9
+ MX6SLL_PAD_SD2_DATA6__SD2_DATA6 0x170f9
+ MX6SLL_PAD_SD2_DATA7__SD2_DATA7 0x170f9
+ MX6SLL_PAD_GPIO4_IO21__SD2_STROBE 0x4130f9
+ >;
+ };
+
pinctrl_usbotg1: usbotg1grp {
fsl,pins = <
MX6SLL_PAD_EPDC_PWR_COM__USB_OTG1_ID 0x17059
--
2.7.4