ARM: kirkwood: DT board setup for Network Space Lite v2

This patch adds DT board setup for the LaCie NAS Network Space Lite v2.
This board is derived from the Network Space v2 and a lot of hardware
characteristics are shared.

- CPU: Marvell 88F6192 800Mhz
- SDRAM memory: 128MB DDR2 200Mhz
- 1 SATA port: internal
- Gigabit ethernet: PHY Marvell 88E1318
- Flash memory: SPI NOR 512KB (Macronix MX25L4005A)
- i2c EEPROM: 512 bytes (24C04 type)
- 2 USB2 ports: host and host/device
- 1 push button
- 1 SATA LED (bi-color, blue and red)

Note that the SATA LED is not compatible with the driver leds-ns2. The
LED behaviour ("on", "off" or "SATA activity blink") is controlled via
a single MPP (21).
Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/Makefile

@@ -41,6 +41,7 @@ dtb-$(CONFIG_ARCH_KIRKWOOD) += kirkwood-dns320.dtb \
 	kirkwood-lschlv2.dtb \
 	kirkwood-lsxhl.dtb \
 	kirkwood-ns2.dtb \
+	kirkwood-ns2lite.dtb \
 	kirkwood-ns2max.dtb \
 	kirkwood-ts219-6281.dtb \
 	kirkwood-ts219-6282.dtb

arch/arm/boot/dts/kirkwood-ns2lite.dts

+/dts-v1/;
+
+/include/ "kirkwood-ns2-common.dtsi"
+
+/ {
+	model = "LaCie Network Space Lite v2";
+	compatible = "lacie,netspace_lite_v2", "marvell,kirkwood-88f6192", "marvell,kirkwood";
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x8000000>;
+	};
+
+	ocp@f1000000 {
+		sata@80000 {
+			status = "okay";
+			nr-ports = <1>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		blue-sata {
+			label = "ns2:blue:sata";
+			gpios = <&gpio0 30 1>;
+			linux,default-trigger = "default-on";
+		};
+	};
+};

arch/arm/mach-kirkwood/Kconfig

@@ -151,6 +151,13 @@ config MACH_NETSPACE_MAX_V2_DT
 	  Say 'Y' here if you want your kernel to support the LaCie
 	  Network Space Max v2 NAS, using Flattened Device Tree.
 
+config MACH_NETSPACE_LITE_V2_DT
+	bool "LaCie Network Space Lite v2 NAS (Flattened Device Tree)"
+	select ARCH_KIRKWOOD_DT
+	help
+	  Say 'Y' here if you want your kernel to support the LaCie
+	  Network Space Lite v2 NAS, using Flattened Device Tree.
+
 config MACH_TS219
 	bool "QNAP TS-110, TS-119, TS-119P+, TS-210, TS-219, TS-219P and TS-219P+ Turbo NAS"
 	help

arch/arm/mach-kirkwood/Makefile

@@ -34,3 +34,4 @@ obj-$(CONFIG_MACH_KM_KIRKWOOD_DT)	+= board-km_kirkwood.o
 obj-$(CONFIG_MACH_INETSPACE_V2_DT)	+= board-ns2.o
 obj-$(CONFIG_MACH_NETSPACE_V2_DT)	+= board-ns2.o
 obj-$(CONFIG_MACH_NETSPACE_MAX_V2_DT)	+= board-ns2.o
+obj-$(CONFIG_MACH_NETSPACE_LITE_V2_DT)	+= board-ns2.o

arch/arm/mach-kirkwood/board-dt.c

@@ -98,7 +98,8 @@ static void __init kirkwood_dt_init(void)
 
 	if (of_machine_is_compatible("lacie,inetspace_v2") ||
 	    of_machine_is_compatible("lacie,netspace_v2") ||
-	    of_machine_is_compatible("lacie,netspace_max_v2"))
+	    of_machine_is_compatible("lacie,netspace_max_v2") ||
+	    of_machine_is_compatible("lacie,netspace_lite_v2"))
 		ns2_init();
 
 	of_platform_populate(NULL, kirkwood_dt_match_table,
@@ -120,6 +121,7 @@ static const char *kirkwood_dt_board_compat[] = {
 	"lacie,inetspace_v2",
 	"lacie,netspace_max_v2",
 	"lacie,netspace_v2",
+	"lacie,netspace_lite_v2",
 	NULL
 };
 

arch/arm/mach-kirkwood/board-ns2.c

@@ -16,6 +16,7 @@
 #include <linux/platform_device.h>
 #include <linux/mv643xx_eth.h>
 #include <linux/gpio.h>
+#include <linux/of.h>
 #include "common.h"
 #include "mpp.h"
 
@@ -73,6 +74,8 @@ void __init ns2_init(void)
 	kirkwood_mpp_conf(ns2_mpp_config);
 
 	kirkwood_ehci_init();
+	if (of_machine_is_compatible("lacie,netspace_lite_v2"))
+		ns2_ge00_data.phy_addr = MV643XX_ETH_PHY_ADDR(0);
 	kirkwood_ge00_init(&ns2_ge00_data);
 
 	if (gpio_request(NS2_GPIO_POWER_OFF, "power-off") == 0 &&

arch/arm/mach-kirkwood/common.h

@@ -114,7 +114,8 @@ static inline void km_kirkwood_init(void) {};
 
 #if defined(CONFIG_MACH_INETSPACE_V2_DT) || \
 	defined(CONFIG_MACH_NETSPACE_V2_DT) || \
-	defined(CONFIG_MACH_NETSPACE_MAX_V2_DT)
+	defined(CONFIG_MACH_NETSPACE_MAX_V2_DT) || \
+	defined(CONFIG_MACH_NETSPACE_LITE_V2_DT)
 void ns2_init(void);
 #else
 static inline void ns2_init(void) {};