linux-kernel - [PATCH v2 1/5] ARM: dts: qcom: Add ADM DMA + NAND definitions to ipq806x

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Date:   Thu, 20 May 2021 18:29:39 +0100
From:   Jonathan McDowell <noodles@...th.li>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Ansuel Smith <ansuelsmth@...il.com>,
        Vinod Koul <vkoul@...nel.org>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/5] ARM: dts: qcom: Add ADM DMA + NAND definitions to
 ipq806x

Now the ADM driver is in mainline add the appropriate definitions for it
and the NAND controller to get NAND working on IPQ806x platforms,

Signed-off-by: Jonathan McDowell <noodles@...th.li>
---
 arch/arm/boot/dts/qcom-ipq8064.dtsi | 67 +++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-ipq8064.dtsi b/arch/arm/boot/dts/qcom-ipq8064.dtsi
index 98995ead4413..3f666021ff23 100644
--- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
@@ -185,6 +185,31 @@
 					bias-pull-up;
 				};
 			};
+
+			nand_pins: nand_pins {
+				mux {
+					pins = "gpio34", "gpio35", "gpio36",
+					       "gpio37", "gpio38", "gpio39",
+					       "gpio40", "gpio41", "gpio42",
+					       "gpio43", "gpio44", "gpio45",
+					       "gpio46", "gpio47";
+					function = "nand";
+					drive-strength = <10>;
+					bias-disable;
+				};
+
+				pullups {
+					pins = "gpio39";
+					bias-pull-up;
+				};
+
+				hold {
+					pins = "gpio40", "gpio41", "gpio42",
+					       "gpio43", "gpio44", "gpio45",
+					       "gpio46", "gpio47";
+					bias-bus-hold;
+				};
+			};
 		};
 
 		intc: interrupt-controller@...0000 {
@@ -226,6 +251,26 @@
 			reg = <0x02098000 0x1000>, <0x02008000 0x1000>;
 		};
 
+		adm_dma: dma-controller@...00000 {
+			compatible = "qcom,adm";
+			reg = <0x18300000 0x100000>;
+			interrupts = <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>;
+			#dma-cells = <1>;
+
+			clocks = <&gcc ADM0_CLK>, <&gcc ADM0_PBUS_CLK>;
+			clock-names = "core", "iface";
+
+			resets = <&gcc ADM0_RESET>,
+				 <&gcc ADM0_PBUS_RESET>,
+				 <&gcc ADM0_C0_RESET>,
+				 <&gcc ADM0_C1_RESET>,
+				 <&gcc ADM0_C2_RESET>;
+			reset-names = "clk", "pbus", "c0", "c1", "c2";
+			qcom,ee = <0>;
+
+			status = "disabled";
+		};
+
 		saw0: regulator@...9000 {
 			compatible = "qcom,saw2";
 			reg = <0x02089000 0x1000>, <0x02009000 0x1000>;
@@ -403,6 +448,28 @@
 			status = "disabled";
 		};
 
+		nand: nand-controller@...00000 {
+			compatible = "qcom,ipq806x-nand";
+			reg = <0x1ac00000 0x800>;
+
+			pinctrl-0 = <&nand_pins>;
+			pinctrl-names = "default";
+
+			clocks = <&gcc EBI2_CLK>,
+				 <&gcc EBI2_AON_CLK>;
+			clock-names = "core", "aon";
+
+			dmas = <&adm_dma 3>;
+			dma-names = "rxtx";
+			qcom,cmd-crci = <15>;
+			qcom,data-crci = <3>;
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			status = "disabled";
+		};
+
 		sata: sata@...00000 {
 			compatible = "qcom,ipq806x-ahci", "generic-ahci";
 			reg = <0x29000000 0x180>;
-- 
2.20.1