freifunkist-firmware/target/linux/ipq806x/patches-4.9/863-dts-ipq4019-add-nand-and-qpic-bam-dma-node.patch

From 02bbf3c46e1e38e9ca699143566903683e3a015d Mon Sep 17 00:00:00 2001
From: Ram Chandra Jangir <rjangir@codeaurora.org>
Date: Thu, 20 Apr 2017 10:45:00 +0530
Subject: [PATCH] dts: ipq4019: add nand and qpic bam dma node

This change adds QPIC BAM dma and NAND driver node's in
IPQ4019 device tree, also enable this for AP-DK04.1 based
boards.

Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
---
 arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1.dtsi | 75 +++++++++++++++++++++++++++
 arch/arm/boot/dts/qcom-ipq4019.dtsi           | 38 ++++++++++++++
 2 files changed, 113 insertions(+)

--- a/arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1.dtsi
+++ b/arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1.dtsi
@@ -88,6 +88,86 @@
 					bias-disable;
 				};
 			};
+
+			nand_pins: nand_pins {
+
+				 mux_1 {
+					 pins = "gpio52", "gpio53", "gpio54",
+						"gpio55", "gpio56", "gpio61",
+						"gpio62", "gpio63", "gpio69";
+					 function = "qpic_pad";
+					 bias-disable;
+				 };
+
+				mux_2 {
+					pins = "gpio67";
+					function = "qpic_pad0";
+					bias-disable;
+				};
+
+				mux_3 {
+					pins = "gpio64";
+					function = "qpic_pad1";
+					bias-disable;
+				};
+
+				mux_4 {
+					pins = "gpio65";
+					function = "qpic_pad2";
+					bias-disable;
+				};
+
+				mux_5 {
+					pins = "gpio66";
+					function = "qpic_pad3";
+					bias-disable;
+				};
+
+				mux_6 {
+					pins = "gpio57";
+					function = "qpic_pad4";
+					bias-disable;
+				};
+
+				mux_7 {
+					pins = "gpio58";
+					function = "qpic_pad5";
+					bias-disable;
+				};
+
+				mux_8 {
+					pins = "gpio59";
+					function = "qpic_pad6";
+					bias-disable;
+				};
+
+				mux_9 {
+					pins = "gpio60";
+					function = "qpic_pad7";
+					bias-disable;
+				};
+
+				mux_10 {
+					pins = "gpio68";
+					function = "qpic_pad8";
+					bias-disable;
+				};
+
+				pullups {
+					pins = "gpio52", "gpio53", "gpio58",
+						"gpio59";
+					bias-pull-up;
+				};
+
+				pulldowns {
+					pins = "gpio54", "gpio55", "gpio56",
+						"gpio57", "gpio60", "gpio61",
+						"gpio62", "gpio63", "gpio64",
+						"gpio65", "gpio66", "gpio67",
+						"gpio68", "gpio69";
+					bias-pull-down;
+				};
+			};
 		};
 
 		blsp_dma: dma@7884000 {
@@ -159,5 +239,15 @@
 		watchdog@b017000 {
 			status = "ok";
 		};
+
+		qpic_bam: dma@7984000 {
+			status = "ok";
+		};
+
+		nand: qpic-nand@79b0000 {
+			pinctrl-0 = <&nand_pins>;
+			pinctrl-names = "default";
+			status = "ok";
+		};
 	};
 };
--- a/arch/arm/boot/dts/qcom-ipq4019.dtsi
+++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi
@@ -586,5 +586,43 @@
 					  "legacy";
 			status = "disabled";
 		};
+
+		qpic_bam: dma@7984000 {
+			compatible = "qcom,bam-v1.7.0";
+			reg = <0x7984000 0x1a000>;
+			interrupts = <0 101 0>;
+			clocks = <&gcc GCC_QPIC_AHB_CLK>;
+			clock-names = "bam_clk";
+			#dma-cells = <1>;
+			qcom,ee = <0>;
+			status = "disabled";
+		};
+
+		nand: qpic-nand@79b0000 {
+			compatible = "qcom,ebi2-nandc-bam", "qcom,msm-nand";
+			reg = <0x79b0000 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&gcc GCC_QPIC_CLK>,
+				<&gcc GCC_QPIC_AHB_CLK>;
+			clock-names = "core", "aon";
+
+			dmas = <&qpic_bam 0>,
+				<&qpic_bam 1>,
+				<&qpic_bam 2>;
+			dma-names = "tx", "rx", "cmd";
+			status = "disabled";
+
+			nandcs@0 {
+				compatible = "qcom,nandcs";
+				reg = <0>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				nand-ecc-strength = <4>;
+				nand-ecc-step-size = <512>;
+				nand-bus-width = <8>;
+			};
+		};
 	};
 };