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Subject[PATCH 2/2] arm64: dts: ti: k3-am654-base-board: Add MMC/SD support
Date
On the am654x-evm, sdhci0 node is connected to an eMMC while sdhci1
is connected to an SD card slot. Add nodes and pinmuxes for the same.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
---
.../arm64/boot/dts/ti/k3-am654-base-board.dts | 46 +++++++++++++++++++
1 file changed, 46 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index bd5a0069191d..5dcd16b787eb 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -60,6 +60,36 @@
AM65X_IOPAD(0x0070, PIN_INPUT, 5) /* (R25) GPMC0_CSn2.I2C2_SDA */
>;
};
+
+ main_mmc0_pins_default: main_mmc0_pins_default {
+ pinctrl-single,pins = <
+ AM65X_IOPAD(0x01a8, PIN_INPUT_PULLDOWN, 0) /* (B25) MMC0_CLK */
+ AM65X_IOPAD(0x01ac, PIN_INPUT_PULLUP, 0) /* (B27) MMC0_CMD */
+ AM65X_IOPAD(0x01a4, PIN_INPUT_PULLUP, 0) /* (A26) MMC0_DAT0 */
+ AM65X_IOPAD(0x01a0, PIN_INPUT_PULLUP, 0) /* (E25) MMC0_DAT1 */
+ AM65X_IOPAD(0x019c, PIN_INPUT_PULLUP, 0) /* (C26) MMC0_DAT2 */
+ AM65X_IOPAD(0x0198, PIN_INPUT_PULLUP, 0) /* (A25) MMC0_DAT3 */
+ AM65X_IOPAD(0x0194, PIN_INPUT_PULLUP, 0) /* (E24) MMC0_DAT4 */
+ AM65X_IOPAD(0x0190, PIN_INPUT_PULLUP, 0) /* (A24) MMC0_DAT5 */
+ AM65X_IOPAD(0x018c, PIN_INPUT_PULLUP, 0) /* (B26) MMC0_DAT6 */
+ AM65X_IOPAD(0x0188, PIN_INPUT_PULLUP, 0) /* (D25) MMC0_DAT7 */
+ AM65X_IOPAD(0x01b4, PIN_INPUT_PULLUP, 0) /* (A23) MMC0_SDCD */
+ AM65X_IOPAD(0x01b0, PIN_INPUT, 0) /* (C25) MMC0_DS */
+ >;
+ };
+
+ main_mmc1_pins_default: main_mmc1_pins_default {
+ pinctrl-single,pins = <
+ AM65X_IOPAD(0x02d4, PIN_INPUT_PULLDOWN, 0) /* (C27) MMC1_CLK */
+ AM65X_IOPAD(0x02d8, PIN_INPUT_PULLUP, 0) /* (C28) MMC1_CMD */
+ AM65X_IOPAD(0x02d0, PIN_INPUT_PULLUP, 0) /* (D28) MMC1_DAT0 */
+ AM65X_IOPAD(0x02cc, PIN_INPUT_PULLUP, 0) /* (E27) MMC1_DAT1 */
+ AM65X_IOPAD(0x02c8, PIN_INPUT_PULLUP, 0) /* (D26) MMC1_DAT2 */
+ AM65X_IOPAD(0x02c4, PIN_INPUT_PULLUP, 0) /* (D27) MMC1_DAT3 */
+ AM65X_IOPAD(0x02dc, PIN_INPUT_PULLUP, 0) /* (B24) MMC1_SDCD */
+ AM65X_IOPAD(0x02e0, PIN_INPUT, 0) /* (C24) MMC1_SDWP */
+ >;
+ };
};

&main_pmx1 {
@@ -125,3 +155,19 @@
pinctrl-0 = <&main_i2c2_pins_default>;
clock-frequency = <400000>;
};
+
+&sdhci0 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_mmc0_pins_default>;
+ bus-width = <8>;
+ non-removable;
+ ti,driver-strength-ohm = <50>;
+};
+
+&sdhci1 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_mmc1_pins_default>;
+ ti,driver-strength-ohm = <50>;
+};
--
2.19.2
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