[PATCH v7 2/9] arm64: dts: agilex5: add SD/eMMC host controller

[Tanmay Kathpalia <tanmay.kathpalia@altera.com>]

The Agilex5 HPS includes a Cadence SD6HC that can drive either an SD
card or eMMC. It uses separate SDMCLK (CIU) and L4_MP (BIU) clocks, and
has three resets for the host controller, Combo PHY, and SDMMC OCP
bridge.

Signed-off-by: Tanmay Kathpalia <tanmay.kathpalia@altera.com>
---
Depends on commit ab45ecfab540 ("dt-bindings: reset: altr: add
COMBOPHY_RESET for Agilex5"), which is already in mainline via the
reset tree. It is not yet in mmc/next; apply or merge that commit when
building/testing this patch on top of mmc/next.

Depends on commit 10cf797f3f8a ("arm64: dts: socfpga: agilex5: Enable
the SMMU"), which is already in the SoC DT tree. It is not yet in
mmc/next; apply or merge that commit when building/testing this patch
on top of mmc/next, otherwise the SMMU remains disabled.

 arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi b/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
index b06c6d5d60ee..6de5a470d423 100644
--- a/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
@@ -300,6 +300,21 @@ portb: gpio-controller@0 {
 			};
 		};
 
+		sdmmc: mmc@10808000 {
+			compatible = "altr,agilex5-sd6hc", "cdns,sd6hc";
+			reg = <0x10808000 0x1000>;
+			clocks = <&clkmgr AGILEX5_SDMCLK>, <&clkmgr AGILEX5_L4_MP_CLK>;
+			clock-names = "ciu", "biu";
+			dma-coherent;
+			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+			iommus = <&smmu 5>;
+			resets = <&rst SDMMC_RESET>, <&rst COMBOPHY_RESET>,
+				 <&rst SDMMC_OCP_RESET>;
+			reset-names = "sdhc-reset", "combophy", "sdmmc-ocp";
+
+			status = "disabled";
+		};
+
 		nand: nand-controller@10b80000 {
 			compatible = "cdns,hp-nfc";
 			reg = <0x10b80000 0x10000>,
-- 
2.43.7