From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Subject: [PATCH] ARM: BCM5301X: Add basic dts for BCM53573 based Tenda AC9
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BCM53573 seems to be low priced alternative for standard Northstar
chipsets. It uses single core Cortex-A7, doesn't have SDU or local (TWD)
timer. It was also stripped out of independent SPI controller and 2
GMACs.

DTS for Tenda AC9 isn't completed yet. It misses e.g. switch entry (we
still need some bgmac/b53 fixes) and probably some clocks. It adds
support for basic features however and can be improved later.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
---
 MAINTAINERS                              |   2 +
 arch/arm/boot/dts/Makefile               |   1 +
 arch/arm/boot/dts/bcm47189-tenda-ac9.dts |  74 ++++++++++++++++
 arch/arm/boot/dts/bcm53573.dtsi          | 147 +++++++++++++++++++++++++++++++
 4 files changed, 224 insertions(+)
 create mode 100644 arch/arm/boot/dts/bcm47189-tenda-ac9.dts
 create mode 100644 arch/arm/boot/dts/bcm53573.dtsi

--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2337,6 +2337,8 @@ S:	Maintained
 F:	arch/arm/mach-bcm/bcm_5301x.c
 F:	arch/arm/boot/dts/bcm5301x.dtsi
 F:	arch/arm/boot/dts/bcm470*
+F:	arch/arm/boot/dts/bcm53573*
+F:	arch/arm/boot/dts/bcm47189*
 
 BROADCOM BCM63XX ARM ARCHITECTURE
 M:	Florian Fainelli <f.fainelli@gmail.com>
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -77,6 +77,7 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
 	bcm4709-netgear-r7000.dtb \
 	bcm4709-netgear-r8000.dtb \
 	bcm47094-dlink-dir-885l.dtb \
+	bcm47189-tenda-ac9.dtb \
 	bcm94708.dtb \
 	bcm94709.dtb \
 	bcm953012er.dtb \
--- /dev/null
+++ b/arch/arm/boot/dts/bcm47189-tenda-ac9.dts
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2016 Rafał Miłecki <rafal@milecki.pl>
+ *
+ * Licensed under the ISC license.
+ */
+
+/dts-v1/;
+
+#include "bcm53573.dtsi"
+
+/ {
+	compatible = "tenda,ac9", "brcm,bcm47189", "brcm,bcm53573";
+	model = "Tenda AC9";
+
+	chosen {
+		bootargs = "console=ttyS0,115200 earlycon";
+	};
+
+	memory {
+		reg = <0x00000000 0x08000000>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		usb {
+			label = "bcm53xx:blue:usb";
+			gpios = <&chipcommon 1 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "default-off";
+		};
+
+		wps {
+			label = "bcm53xx:blue:wps";
+			gpios = <&chipcommon 10 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "default-off";
+		};
+
+		5ghz {
+			label = "bcm53xx:blue:5ghz";
+			gpios = <&chipcommon 11 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "default-off";
+		};
+
+		system {
+			label = "bcm53xx:blue:system";
+			gpios = <&chipcommon 15 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "timer";
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		rfkill {
+			label = "WiFi";
+			linux,code = <KEY_RFKILL>;
+			gpios = <&chipcommon 3 GPIO_ACTIVE_LOW>;
+		};
+
+		restart {
+			label = "Reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&chipcommon 7 GPIO_ACTIVE_LOW>;
+		};
+
+		wps {
+			label = "WPS";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&chipcommon 9 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
--- /dev/null
+++ b/arch/arm/boot/dts/bcm53573.dtsi
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2016 Rafał Miłecki <rafal@milecki.pl>
+ *
+ * Licensed under the ISC license.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include "skeleton.dtsi"
+
+/ {
+	interrupt-parent = <&gic>;
+
+	chosen {
+		stdout-path = &uart0;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x0>;
+		};
+	};
+
+	mpcore {
+		compatible = "simple-bus";
+		ranges = <0x00000000 0x18310000 0x00008000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		gic: interrupt-controller@1000 {
+			compatible = "arm,cortex-a7-gic";
+			#interrupt-cells = <3>;
+			#address-cells = <0>;
+			interrupt-controller;
+			reg = <0x1000 0x1000>,
+			      <0x2000 0x0100>;
+		};
+	};
+
+	clocks {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		alp: oscillator {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <40000000>;
+		};
+	};
+
+	axi@18000000 {
+		compatible = "brcm,bus-axi";
+		reg = <0x18000000 0x1000>;
+		ranges = <0x00000000 0x18000000 0x00100000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0x000fffff 0xffff>;
+		interrupt-map =
+			/* ChipCommon */
+			<0x00000000 0 &gic GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+
+			/* IEEE 802.11 0 */
+			<0x00001000 0 &gic GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+
+			/* PCIe Controller 0 */
+			<0x00002000 0 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+			<0x00002000 1 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+			<0x00002000 2 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+			<0x00002000 3 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+			<0x00002000 4 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+			<0x00002000 5 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+
+			/* USB 2.0 Controller */
+			<0x00004000 0 &gic GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+
+			/* Ethernet Controller 0 */
+			<0x00005000 0 &gic GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+
+			/* IEEE 802.11 1 */
+			<0x0000a000 0 &gic GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+
+			/* Ethernet Controller 1 */
+			<0x0000b000 0 &gic GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
+
+		chipcommon: chipcommon@0 {
+			compatible = "simple-bus";
+			reg = <0x00000000 0x1000>;
+			ranges;
+
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			gpio-controller;
+			#gpio-cells = <2>;
+
+			uart0: serial@0300 {
+				compatible = "ns16550a";
+				reg = <0x0300 0x100>;
+				interrupt-parent = <&gic>;
+				interrupts = <GIC_PPI 16 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&alp>;
+				status = "okay";
+			};
+		};
+
+		usb2: usb2@4000 {
+			reg = <0x4000 0x1000>;
+			ranges;
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			ehci: ehci@4000 {
+				compatible = "generic-ehci";
+				reg = <0x4000 0x1000>;
+				interrupt-parent = <&gic>;
+				interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+			};
+
+			ohci: ohci@d000 {
+				#usb-cells = <0>;
+
+				compatible = "generic-ohci";
+				reg = <0xd000 0x1000>;
+				interrupt-parent = <&gic>;
+				interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+			};
+		};
+
+		gmac0: ethernet@5000 {
+			reg = <0x5000 0x1000>;
+		};
+
+		gmac1: ethernet@b000 {
+			reg = <0xb000 0x1000>;
+		};
+	};
+};
