arm64: dts: amlogic: t7: Add MMC controller nodes

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>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260326-add-emmc-t7-vim4-v5-3-d3f182b48e9d@aliel.fr
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

Author: rclaveau-tech

arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi

@@ -645,6 +645,45 @@
 				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>;
+				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>;
+				status = "disabled";
+			};
+
+			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>;
+				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>;
+				status = "disabled";
+			};
+
+			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>;
+				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>;
+				status = "disabled";
+			};
 		};
 
 	};