From f4029538f063a845dc9aae46cce4cf386e6253a5 Mon Sep 17 00:00:00 2001
From: Sam Shih <sam.shih@mediatek.com>
Date: Fri, 18 Nov 2022 20:01:21 +0100
Subject: [PATCH 06/19] arm64: dts: mt7986: add spi related device nodes

This patch adds spi support for MT7986.

Signed-off-by: Sam Shih <sam.shih@mediatek.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20221118190126.100895-7-linux@fw-web.de
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
---
 arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts | 35 ++++++++++++++++++++
 arch/arm64/boot/dts/mediatek/mt7986a.dtsi    | 28 ++++++++++++++++
 arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts | 35 ++++++++++++++++++++
 3 files changed, 98 insertions(+)

--- a/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
@@ -59,6 +59,20 @@
 };
 
 &pio {
+	spi_flash_pins: spi-flash-pins {
+		mux {
+			function = "spi";
+			groups = "spi0", "spi0_wp_hold";
+		};
+	};
+
+	spic_pins: spic-pins {
+		mux {
+			function = "spi";
+			groups = "spi1_2";
+		};
+	};
+
 	uart1_pins: uart1-pins {
 		mux {
 			function = "uart";
@@ -105,6 +119,27 @@
 	};
 };
 
+&spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi_flash_pins>;
+	cs-gpios = <0>, <0>;
+	status = "okay";
+	spi_nand: spi_nand@0 {
+		compatible = "spi-nand";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+		spi-tx-buswidth = <4>;
+		spi-rx-buswidth = <4>;
+	};
+};
+
+&spi1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spic_pins>;
+	cs-gpios = <0>, <0>;
+	status = "okay";
+};
+
 &switch {
 	ports {
 		#address-cells = <1>;
--- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
@@ -294,6 +294,34 @@
 			status = "disabled";
 		};
 
+		spi0: spi@1100a000 {
+			compatible = "mediatek,mt7986-spi-ipm", "mediatek,spi-ipm";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0 0x1100a000 0 0x100>;
+			interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&topckgen CLK_TOP_MPLL_D2>,
+				 <&topckgen CLK_TOP_SPI_SEL>,
+				 <&infracfg CLK_INFRA_SPI0_CK>,
+				 <&infracfg CLK_INFRA_SPI0_HCK_CK>;
+			clock-names = "parent-clk", "sel-clk", "spi-clk", "hclk";
+			status = "disabled";
+		};
+
+		spi1: spi@1100b000 {
+			compatible = "mediatek,mt7986-spi-ipm", "mediatek,spi-ipm";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0 0x1100b000 0 0x100>;
+			interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&topckgen CLK_TOP_MPLL_D2>,
+				 <&topckgen CLK_TOP_SPIM_MST_SEL>,
+				 <&infracfg CLK_INFRA_SPI1_CK>,
+				 <&infracfg CLK_INFRA_SPI1_HCK_CK>;
+			clock-names = "parent-clk", "sel-clk", "spi-clk", "hclk";
+			status = "disabled";
+		};
+
 		ethsys: syscon@15000000 {
 			 #address-cells = <1>;
 			 #size-cells = <1>;
--- a/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts
@@ -100,6 +100,20 @@
 };
 
 &pio {
+	spi_flash_pins: spi-flash-pins {
+		mux {
+			function = "spi";
+			groups = "spi0", "spi0_wp_hold";
+		};
+	};
+
+	spic_pins: spic-pins {
+		mux {
+			function = "spi";
+			groups = "spi1_2";
+		};
+	};
+
 	wf_2g_5g_pins: wf-2g-5g-pins {
 		mux {
 			function = "wifi";
@@ -132,6 +146,27 @@
 	};
 };
 
+&spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi_flash_pins>;
+	cs-gpios = <0>, <0>;
+	status = "okay";
+	spi_nand: spi_nand@0 {
+		compatible = "spi-nand";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+		spi-tx-buswidth = <4>;
+		spi-rx-buswidth = <4>;
+	};
+};
+
+&spi1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spic_pins>;
+	cs-gpios = <0>, <0>;
+	status = "okay";
+};
+
 &uart0 {
 	status = "okay";
 };