[PATCH v0 06/10] arm: orion5x: Add DT-based support for Netgear WNR854T

From: Jamie Lentin
Date: Sat Jul 16 2016 - 11:06:34 EST

This is a router based on the mv88f5181 chipset.

http://www.netgear.com/support/product/WNR854T.aspx
http://wiki.openwrt.org/toh/netgear/wnr854t

Signed-off-by: Jamie Lentin <jm@xxxxxxxxxxxx>
---
.../bindings/arm/marvell/marvell,orion5x.txt | 1 +
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/orion5x-netgear-wnr854t.dts | 200 +++++++++++++++++++++
arch/arm/mach-orion5x/Kconfig | 6 +
arch/arm/mach-orion5x/Makefile | 1 +
arch/arm/mach-orion5x/board-wnr854t.c | 78 ++++++++
6 files changed, 287 insertions(+)
create mode 100644 arch/arm/boot/dts/orion5x-netgear-wnr854t.dts
create mode 100644 arch/arm/mach-orion5x/board-wnr854t.c

diff --git a/Documentation/devicetree/bindings/arm/marvell/marvell,orion5x.txt b/Documentation/devicetree/bindings/arm/marvell/marvell,orion5x.txt
index ff3c120..748a8f2 100644
--- a/Documentation/devicetree/bindings/arm/marvell/marvell,orion5x.txt
+++ b/Documentation/devicetree/bindings/arm/marvell/marvell,orion5x.txt
@@ -22,3 +22,4 @@ board. Currently known boards are:
"lacie,d2-network"
"marvell,rd-88f5182-nas"
"maxtor,shared-storage-2"
+"netgear,wnr854t"
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 95c1923..63b9202 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -535,6 +535,7 @@ dtb-$(CONFIG_ARCH_ORION5X) += \
orion5x-linkstation-lswtgl.dtb \
orion5x-lswsgl.dtb \
orion5x-maxtor-shared-storage-2.dtb \
+ orion5x-netgear-wnr854t.dtb \
orion5x-rd88f5182-nas.dtb
dtb-$(CONFIG_ARCH_PRIMA2) += \
prima2-evb.dtb
diff --git a/arch/arm/boot/dts/orion5x-netgear-wnr854t.dts b/arch/arm/boot/dts/orion5x-netgear-wnr854t.dts
new file mode 100644
index 0000000..a8e89d8
--- /dev/null
+++ b/arch/arm/boot/dts/orion5x-netgear-wnr854t.dts
@@ -0,0 +1,200 @@
+/*
+ * Copyright (C) 2014 Jamie Lentin <jm@xxxxxxxxxxxx>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include "orion5x-mv88f5181.dtsi"
+
+/ {
+ model = "Netgear WNR854-t";
+ compatible = "netgear,wnr854t", "marvell,orion5x-88f5181",
+ "marvell,orion5x";
+
+ memory {
+ reg = <0x00000000 0x2000000>; /* 32 MB */
+ };
+
+ chosen {
+ bootargs = "console=ttyS0,115200n8 earlyprintk";
+ linux,stdout-path = &uart0;
+ };
+
+ soc {
+ ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000>,
+ <MBUS_ID(0x09, 0x00) 0 0xf2200000 0x800>,
+ <MBUS_ID(0x01, 0x0f) 0 0xf4000000 0x800000>;
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ pinctrl-0 = <&pmx_reset_switch>;
+ pinctrl-names = "default";
+
+ reset {
+ label = "Reset Button";
+ linux,code = <KEY_RESTART>;
+ gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ gpio-leds {
+ compatible = "gpio-leds";
+ pinctrl-0 = <&pmx_power_led &pmx_power_led_blink &pmx_wan_led>;
+ pinctrl-names = "default";
+
+ led@0 {
+ label = "power:green";
+ gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;
+ };
+
+ led@1 {
+ label = "power:blink";
+ gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
+ };
+
+ led@2 {
+ label = "wan:green";
+ gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ dsa@0 {
+ compatible = "marvell,dsa";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dsa,ethernet = <&ethport>;
+ dsa,mii-bus = <&mdio>;
+
+ switch@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0 0>; /* MDIO address 0, switch 0 in tree */
+
+ port@0 {
+ reg = <0>;
+ label = "lan3";
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan4";
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "wan";
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "cpu";
+ };
+
+ port@5 {
+ reg = <5>;
+ label = "lan1";
+ };
+
+ port@7 {
+ reg = <7>;
+ label = "lan2";
+ };
+ };
+ };
+};
+
+&devbus_bootcs {
+ status = "okay";
+
+ devbus,keep-config;
+
+ flash@0 {
+ compatible = "cfi-flash";
+ reg = <0 0x800000>;
+ bank-width = <1>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "kernel";
+ reg = <0x0 0x100000>;
+ };
+
+ partition@100000 {
+ label = "rootfs";
+ reg = <0x100000 0x660000>;
+ };
+
+ partition@760000 {
+ label = "uboot_env";
+ reg = <0x760000 0x20000>;
+ };
+
+ partition@780000 {
+ label = "uboot";
+ reg = <0x780000 0x80000>;
+ read-only;
+ };
+ };
+};
+
+&mdio {
+ status = "okay";
+};
+
+&eth {
+ status = "okay";
+ ethernet-port@0 {
+ speed = <1000>;
+ duplex = <1>;
+ };
+};
+
+&pinctrl {
+ pinctrl-0 = <&pmx_pci_gpios &pmx_ge>;
+ pinctrl-names = "default";
+
+ pmx_power_led: pmx-power-led {
+ marvell,pins = "mpp0";
+ marvell,function = "gpio";
+ };
+
+ pmx_reset_switch: pmx-reset-switch {
+ marvell,pins = "mpp1";
+ marvell,function = "gpio";
+ };
+
+ pmx_power_led_blink: pmx-power-led-blink {
+ marvell,pins = "mpp2";
+ marvell,function = "gpio";
+ };
+
+ pmx_wan_led: pmx-wan-led {
+ marvell,pins = "mpp3";
+ marvell,function = "gpio";
+ };
+
+ pmx_pci_gpios: pmx-pci-gpios {
+ marvell,pins = "mpp4";
+ marvell,function = "gpio";
+ };
+
+ pmx_ge: pmx-ge {
+ marvell,pins = "mpp9", "mpp12", "mpp13", "mpp14", "mpp15",
+ "mpp16", "mpp17", "mpp18", "mpp19";
+ marvell,function = "ge";
+ };
+};
+
+&uart0 {
+ /* Pin 1: Tx, Pin 7: Rx, Pin 8: Gnd */
+ status = "okay";
+};
diff --git a/arch/arm/mach-orion5x/Kconfig b/arch/arm/mach-orion5x/Kconfig
index a2af158..1fdb95d 100644
--- a/arch/arm/mach-orion5x/Kconfig
+++ b/arch/arm/mach-orion5x/Kconfig
@@ -151,6 +151,12 @@ config MACH_MSS2_DT
Say 'Y' here if you want your kernel to support the
Maxtor Shared Storage II platform.

+config MACH_WNR854T_DT
+ bool "Netgear WNR854T (Flattened Device Tree)"
+ help
+ Say 'Y' here if you want your kernel to support the
+ Netgear WNR854T platform.
+
config MACH_WNR854T
bool "Netgear WNR854T"
help
diff --git a/arch/arm/mach-orion5x/Makefile b/arch/arm/mach-orion5x/Makefile
index 4b2502b..9dff2d3 100644
--- a/arch/arm/mach-orion5x/Makefile
+++ b/arch/arm/mach-orion5x/Makefile
@@ -24,3 +24,4 @@ obj-$(CONFIG_ARCH_ORION5X_DT) += board-dt.o
obj-$(CONFIG_MACH_D2NET_DT) += board-d2net.o
obj-$(CONFIG_MACH_MSS2_DT) += board-mss2.o
obj-$(CONFIG_MACH_RD88F5182_DT) += board-rd88f5182.o
+obj-$(CONFIG_MACH_WNR854T_DT) += board-wnr854t.o
diff --git a/arch/arm/mach-orion5x/board-wnr854t.c b/arch/arm/mach-orion5x/board-wnr854t.c
new file mode 100644
index 0000000..c506e33
--- /dev/null
+++ b/arch/arm/mach-orion5x/board-wnr854t.c
@@ -0,0 +1,78 @@
+/*
+ * Netgear WNR854T PCI setup
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <asm/mach/pci.h>
+#include "common.h"
+#include "orion5x.h"
+
+#define WNR854T_PCI_SLOT0_OFFS 7
+#define WNR854T_PCI_SLOT0_IRQ_PIN 4
+
+static void __init wnr854t_pci_preinit(void)
+{
+ int pin;
+
+ /*
+ * Configure PCI GPIO IRQ pins
+ */
+ pin = WNR854T_PCI_SLOT0_IRQ_PIN;
+ if (gpio_request(pin, "PCI Int") == 0) {
+ if (gpio_direction_input(pin) == 0) {
+ irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
+ } else {
+ pr_err("wnr854t_pci_preinit failed to set_irq_type pin %d\n",
+ pin);
+ gpio_free(pin);
+ }
+ } else {
+ pr_err("wnr854t_pci_preinit failed to request gpio %d\n", pin);
+ }
+}
+
+static int __init wnr854t_pci_map_irq(const struct pci_dev *dev, u8 slot,
+ u8 pin)
+{
+ int irq;
+
+ /*
+ * Check for devices with hard-wired IRQs.
+ */
+ irq = orion5x_pci_map_irq(dev, slot, pin);
+ if (irq != -1)
+ return irq;
+
+ /*
+ * PCI IRQs are connected via GPIOs
+ */
+ switch (slot - WNR854T_PCI_SLOT0_OFFS) {
+ case 0:
+ return gpio_to_irq(WNR854T_PCI_SLOT0_IRQ_PIN);
+ default:
+ return -1;
+ }
+}
+
+static struct hw_pci wnr854t_pci __initdata = {
+ .nr_controllers = 2,
+ .preinit = wnr854t_pci_preinit,
+ .setup = orion5x_pci_sys_setup,
+ .scan = orion5x_pci_sys_scan_bus,
+ .map_irq = wnr854t_pci_map_irq,
+};
+
+static int __init wnr854t_pci_init(void)
+{
+ if (of_machine_is_compatible("netgear,wnr854t"))
+ pci_common_init(&wnr854t_pci);
+
+ return 0;
+}
+/* NB: Use late_initcall so we can gpio_request() without being deferred */
+late_initcall(wnr854t_pci_init);
--
2.8.1