Thread (17 messages) 17 messages, 4 authors, 2026-03-25
STALE108d

[PATCH v3 1/9] arm64: dts: amlogic: t7: Add eMMC, SD card and SDIO pinctrl nodes

From: Ronald Claveau <hidden>
Date: 2026-03-23 10:03:35
Also in: linux-amlogic, linux-devicetree, linux-mmc, linux-wireless, lkml
Subsystem: arm/amlogic meson soc support, the rest · Maintainers: Neil Armstrong, Kevin Hilman, Linus Torvalds

These pinctrl nodes are required by the eMMC, SD card and SDIO drivers
to configure pin muxing at runtime.

- eMMC: control, 4-bit/8-bit data, data strobe and clock gate pins
- SD card: data, clock, command and clock gate pins
- SDIO: data, clock, command and clock gate pins

Signed-off-by: Ronald Claveau <redacted>
---
 arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi | 98 +++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
index 6510068bcff92..ac8de8e9b8010 100644
--- a/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
+++ b/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
@@ -250,6 +250,104 @@ gpio: bank@4000 {
 					#gpio-cells = <2>;
 					gpio-ranges = <&periphs_pinctrl 0 0 157>;
 				};
+
+				emmc_ctrl_pins: emmc-ctrl {
+					mux-0 {
+						groups = "emmc_cmd";
+						function = "emmc";
+						bias-pull-up;
+					};
+
+					mux-1 {
+						groups = "emmc_clk";
+						function = "emmc";
+						bias-disable;
+					};
+				};
+
+				emmc_data_4b_pins: emmc-data-4b {
+					mux-0 {
+						groups = "emmc_nand_d0",
+							 "emmc_nand_d1",
+							 "emmc_nand_d2",
+							 "emmc_nand_d3";
+						function = "emmc";
+						bias-pull-up;
+					};
+				};
+
+				emmc_data_8b_pins: emmc-data-8b {
+					mux-0 {
+						groups = "emmc_nand_d0",
+							 "emmc_nand_d1",
+							 "emmc_nand_d2",
+							 "emmc_nand_d3",
+							 "emmc_nand_d4",
+							 "emmc_nand_d5",
+							 "emmc_nand_d6",
+							 "emmc_nand_d7";
+						function = "emmc";
+						bias-pull-up;
+					};
+				};
+
+				emmc_ds_pins: emmc-ds {
+					mux {
+						groups = "emmc_nand_ds";
+						function = "emmc";
+						bias-pull-down;
+					};
+				};
+
+				emmc_clk_gate_pins: emmc_clk_gate {
+					mux {
+						groups = "GPIOB_8";
+						function = "gpio_periphs";
+						bias-pull-down;
+					};
+				};
+
+				sdcard_pins: sdcard {
+					mux {
+						groups = "sdcard_d0",
+							 "sdcard_d1",
+							 "sdcard_d2",
+							 "sdcard_d3",
+							 "sdcard_clk",
+							 "sdcard_cmd";
+						function = "sdcard";
+						bias-pull-up;
+					};
+				};
+
+				sdcard_clk_gate_pins: sdcard_clk_gate {
+					mux {
+						groups = "GPIOC_4";
+						function = "gpio_periphs";
+						bias-pull-down;
+					};
+				};
+
+				sdio_pins: sdio {
+					mux-0 {
+						groups = "sdio_d0",
+							 "sdio_d1",
+							 "sdio_d2",
+							 "sdio_d3",
+							 "sdio_clk",
+							 "sdio_cmd";
+						function = "sdio";
+						bias-pull-up;
+					};
+				};
+
+				sdio_clk_gate_pins: sdio_clk_gate {
+					mux {
+						groups = "GPIOX_4";
+						function = "gpio_periphs";
+						bias-pull-up;
+					};
+				};
 			};
 
 			gpio_intc: interrupt-controller@4080 {
-- 
2.49.0

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