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

This patch adds DT board setup for the LaCie NAS Network Space Mini v2
(aka SafeBox). The hardware characteristics are very close to those of
the Network Space Lite v2. The main difference are:
- A GPIO fan which is only available on the NS2 Mini.
- A single USB host port is wired on the NS2 Mini. The NS2 Lite provides
  an additional dual-mode USB port (host/device).
Signed-off-by: NSimon Guinot <simon.guinot@sequanux.org>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/Makefile

@@ -43,6 +43,7 @@ dtb-$(CONFIG_ARCH_KIRKWOOD) += kirkwood-dns320.dtb \
 	kirkwood-ns2.dtb \
 	kirkwood-ns2lite.dtb \
 	kirkwood-ns2max.dtb \
+	kirkwood-ns2mini.dtb \
 	kirkwood-ts219-6281.dtb \
 	kirkwood-ts219-6282.dtb
 dtb-$(CONFIG_ARCH_MSM) += msm8660-surf.dtb \

arch/arm/boot/dts/kirkwood-ns2mini.dts

+/dts-v1/;
+
+/include/ "kirkwood-ns2-common.dtsi"
+
+/ {
+	model = "LaCie Network Space Mini v2";
+	compatible = "lacie,netspace_mini_v2", "marvell,kirkwood-88f6192", "marvell,kirkwood";
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x8000000>;
+	};
+
+	ocp@f1000000 {
+		sata@80000 {
+			status = "okay";
+			nr-ports = <1>;
+		};
+	};
+
+	gpio_fan {
+		compatible = "gpio-fan";
+		gpios = <&gpio0 22 1
+			 &gpio0  7 1
+			 &gpio1  1 1
+			 &gpio0 23 1>;
+		gpio-fan,speed-map =
+			<   0  0
+			 3000 15
+			 3180 14
+			 4140 13
+			 4570 12
+			 6760 11
+			 7140 10
+			 7980  9
+			 9200  8>;
+		alarm-gpios = <&gpio0 25 1>;
+	};
+
+	ns2-leds {
+		compatible = "lacie,ns2-leds";
+
+		blue-sata {
+			label = "ns2:blue:sata";
+			slow-gpio = <&gpio0 29 0>;
+			cmd-gpio = <&gpio0 30 0>;
+		};
+	};
+};

arch/arm/mach-kirkwood/Kconfig

@@ -158,6 +158,14 @@ config MACH_NETSPACE_LITE_V2_DT
 	  Say 'Y' here if you want your kernel to support the LaCie
 	  Network Space Lite v2 NAS, using Flattened Device Tree.
 
+config MACH_NETSPACE_MINI_V2_DT
+	bool "LaCie Network Space Mini v2 NAS (Flattened Device Tree)"
+	select ARCH_KIRKWOOD_DT
+	help
+	  Say 'Y' here if you want your kernel to support the LaCie
+	  Network Space Mini v2 NAS (aka SafeBox), 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

@@ -35,3 +35,4 @@ 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
+obj-$(CONFIG_MACH_NETSPACE_MINI_V2_DT)	+= board-ns2.o

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

@@ -99,7 +99,8 @@ 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_lite_v2"))
+	    of_machine_is_compatible("lacie,netspace_lite_v2") ||
+	    of_machine_is_compatible("lacie,netspace_mini_v2"))
 		ns2_init();
 
 	of_platform_populate(NULL, kirkwood_dt_match_table,
@@ -122,6 +123,7 @@ static const char *kirkwood_dt_board_compat[] = {
 	"lacie,netspace_max_v2",
 	"lacie,netspace_v2",
 	"lacie,netspace_lite_v2",
+	"lacie,netspace_mini_v2",
 	NULL
 };
 

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

@@ -74,7 +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"))
+	if (of_machine_is_compatible("lacie,netspace_lite_v2") ||
+	    of_machine_is_compatible("lacie,netspace_mini_v2"))
 		ns2_ge00_data.phy_addr = MV643XX_ETH_PHY_ADDR(0);
 	kirkwood_ge00_init(&ns2_ge00_data);
 

arch/arm/mach-kirkwood/common.h

@@ -115,7 +115,8 @@ 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_LITE_V2_DT)
+	defined(CONFIG_MACH_NETSPACE_LITE_V2_DT) || \
+	defined(CONFIG_MACH_NETSPACE_MINI_V2_DT)
 void ns2_init(void);
 #else
 static inline void ns2_init(void) {};

drivers/leds/Kconfig

@@ -381,7 +381,7 @@ config LEDS_NS2
 	depends on MACH_NETSPACE_V2 || MACH_INETSPACE_V2 || \
 		   MACH_NETSPACE_MAX_V2 || MACH_D2NET_V2 || \
 		   MACH_NETSPACE_V2_DT || MACH_INETSPACE_V2_DT || \
-		   MACH_NETSPACE_MAX_V2_DT
+		   MACH_NETSPACE_MAX_V2_DT || MACH_NETSPACE_MINI_V2_DT
 	default y
 	help
 	  This option enable support for the dual-GPIO LED found on the