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 <linux-kernel-dev@aliel.fr>
---
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 {
--
2.49.0Hi Ronald,
On 2026/3/23 17:55, Ronald Claveau wrote:
> 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<linux-kernel-dev@aliel.fr>
> ---
> 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 {
Node names should use hyphens ('-') instead of underscores ('_'),
consistent with the following nodes.
> + 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 {
On 3/25/26 3:48 AM, Xianwei Zhao wrote:
> Hi Ronald,
>
> On 2026/3/23 17:55, Ronald Claveau wrote:
>> 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<linux-kernel-dev@aliel.fr>
>> ---
>> 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 {
>
> Node names should use hyphens ('-') instead of underscores ('_'),
> consistent with the following nodes.
>
Thanks for your feedback Xianwei.
I will change that.
>> + 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 {
--
Best regards,
Ronald
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