Re: [PATCH v4 3/9] arm64: dts: amlogic: t7: Add MMC controller nodes

Ronald Claveau
2026-03-26T09:22:32Z

On 3/26/26 9:52 AM, Neil Armstrong wrote:
> On 3/25/26 10:15, Ronald Claveau wrote:
>> Add device tree nodes for the three MMC controllers available
>> on the Amlogic T7 SoC, using amlogic,meson-axg-mmc as fallback
>> compatible.
>> All nodes are disabled by default and should be
>> enabled in the board-specific DTS file.
>>
>> Signed-off-by: Ronald Claveau <linux-kernel-dev@aliel.fr>
>> ---
>>   arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi | 39 +++++++++++++++++++
>> ++++++++++
>>   1 file changed, 39 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi b/arch/arm64/
>> boot/dts/amlogic/amlogic-t7.dtsi
>> index 016b5429c8d1b..62c87d0ef7065 100644
>> --- a/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
>> +++ b/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
>> @@ -374,6 +374,45 @@ sec_ao: ao-secure@10220 {
>>                   reg = <0x0 0x10220 0x0 0x140>;
>>                   amlogic,has-chip-id;
>>               };
>> +
>> +            sd_emmc_a: mmc@88000 {
>> +                compatible = "amlogic,t7-mmc", "amlogic,meson-axg-mmc";
>> +                reg = <0x0 0x88000 0x0 0x800>;
>> +                interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>;
>> +                status = "disabled";
>
> move disabled at the end of the properties
>

Thanks I will do.

>> +                clocks = <&clkc_periphs CLKID_SYS_SD_EMMC_A>,
>> +                     <&clkc_periphs CLKID_SD_EMMC_A>,
>> +                     <&scmi_clk CLKID_FCLK_DIV2>;
>> +                clock-names = "core", "clkin0", "clkin1";
>> +                assigned-clocks = <&clkc_periphs CLKID_SD_EMMC_A_SEL>;
>> +                assigned-clock-parents = <&xtal>;
>> +            };
>> +
>> +            sd_emmc_b: mmc@8a000 {
>> +                compatible = "amlogic,t7-mmc", "amlogic,meson-axg-mmc";
>> +                reg = <0x0 0x8a000 0x0 0x800>;
>> +                interrupts = <GIC_SPI 177 IRQ_TYPE_EDGE_RISING>;
>> +                status = "disabled";
> Ditto
>
>> +                clocks = <&clkc_periphs CLKID_SYS_SD_EMMC_B>,
>> +                     <&clkc_periphs CLKID_SD_EMMC_B>,
>> +                     <&scmi_clk CLKID_FCLK_DIV2>;
>> +                clock-names = "core", "clkin0", "clkin1";
>> +                assigned-clocks = <&clkc_periphs CLKID_SD_EMMC_B_SEL>;
>> +                assigned-clock-parents = <&xtal>;
>> +            };
>> +
>> +            sd_emmc_c: mmc@8c000 {
>> +                compatible = "amlogic,t7-mmc", "amlogic,meson-axg-mmc";
>> +                reg = <0x0 0x8c000 0x0 0x800>;
>> +                interrupts = <GIC_SPI 178 IRQ_TYPE_EDGE_RISING>;
>> +                status = "disabled";
> Ditto
>> +                clocks = <&clkc_periphs CLKID_SYS_SD_EMMC_C>,
>> +                     <&clkc_periphs CLKID_SD_EMMC_C>,
>> +                     <&scmi_clk CLKID_FCLK_DIV2>;
>> +                clock-names = "core", "clkin0", "clkin1";
>> +                assigned-clocks = <&clkc_periphs CLKID_SD_EMMC_C_SEL>;
>> +                assigned-clock-parents = <&xtal>;
>> +            };
>>           };
>>         };
>>
>

--
Best regards,
Ronald