ARM: Kirkwood: new board USI Topkick

This is a new kirkwood box made by Universal Scientific Industrial, Inc.
The product description is here:

http://www.usish.com/english/products_topkick1281p2.php

It is very similar to the dreamplug and other plug devices, with the
exception that it has room for a 2.5" SATA HDD internally.

Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>

5 files changed, 100 insertions, 0 deletions

diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig
index 757bdb39bc08..1d5283fad014 100644
--- a/arch/arm/mach-kirkwood/Kconfig
+++ b/arch/arm/mach-kirkwood/Kconfig
@@ -166,6 +166,13 @@ config MACH_NETSPACE_MINI_V2_DT
 	  Network Space Mini v2 NAS (aka SafeBox), using Flattened
 	  Device Tree.
 
+config MACH_TOPKICK_DT
+	bool "USI Topkick (Flattened Device Tree)"
+	select ARCH_KIRKWOOD_DT
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  USI Topkick, 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
diff --git a/arch/arm/mach-kirkwood/Makefile b/arch/arm/mach-kirkwood/Makefile
index 3ff4aa1030c5..d867b36a39f8 100644
--- a/arch/arm/mach-kirkwood/Makefile
+++ b/arch/arm/mach-kirkwood/Makefile
@@ -36,3 +36,4 @@ 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
+obj-$(CONFIG_MACH_TOPKICK_DT)		+= board-usi_topkick.o
diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index 571b0198e4d5..e0bb9ca59245 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -103,6 +103,9 @@ static void __init kirkwood_dt_init(void)
 	    of_machine_is_compatible("lacie,netspace_mini_v2"))
 		ns2_init();
 
+	if (of_machine_is_compatible("usi,topkick"))
+		usi_topkick_init();
+
 	of_platform_populate(NULL, kirkwood_dt_match_table,
 			     kirkwood_auxdata_lookup, NULL);
 }
@@ -124,6 +127,7 @@ static const char *kirkwood_dt_board_compat[] = {
 	"lacie,netspace_v2",
 	"lacie,netspace_lite_v2",
 	"lacie,netspace_mini_v2",
+	"usi,topkick",
 	NULL
 };
 
diff --git a/arch/arm/mach-kirkwood/board-usi_topkick.c b/arch/arm/mach-kirkwood/board-usi_topkick.c
new file mode 100644
index 000000000000..e2ec9d891fe3
--- /dev/null
+++ b/arch/arm/mach-kirkwood/board-usi_topkick.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2012 (C), Jason Cooper <jason@lakedaemon.net>
+ *
+ * arch/arm/mach-kirkwood/board-usi_topkick.c
+ *
+ * USI Topkick Init for drivers not converted to flattened device tree yet.
+ *
+ * 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/kernel.h>
+#include <linux/init.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/gpio.h>
+#include <linux/platform_data/mmc-mvsdio.h>
+#include "common.h"
+#include "mpp.h"
+
+static struct mv643xx_eth_platform_data topkick_ge00_data = {
+	.phy_addr	= MV643XX_ETH_PHY_ADDR(0),
+};
+
+static struct mvsdio_platform_data topkick_mvsdio_data = {
+	/* unfortunately the CD signal has not been connected */
+};
+
+/*
+ * GPIO LED layout
+ *
+ *       /-SYS_LED(2)
+ *       |
+ *       |   /-DISK_LED
+ *       |   |
+ *       |   |   /-WLAN_LED(2)
+ *       |   |   |
+ * [SW] [*] [*] [*]
+ */
+
+/*
+ * Switch positions
+ *
+ *     /-SW_LEFT
+ *     |
+ *     |   /-SW_IDLE
+ *     |   |
+ *     |   |   /-SW_RIGHT
+ *     |   |   |
+ * PS [L] [I] [R] LEDS
+ */
+
+static unsigned int topkick_mpp_config[] __initdata = {
+	MPP21_GPIO,	/* DISK_LED           (low active) - yellow */
+	MPP36_GPIO,	/* SATA0 power enable (high active) */
+	MPP37_GPIO,	/* SYS_LED2           (low active) - red */
+	MPP38_GPIO,	/* SYS_LED            (low active) - blue */
+	MPP39_GPIO,	/* WLAN_LED           (low active) - green */
+	MPP43_GPIO,	/* SW_LEFT            (low active) */
+	MPP44_GPIO,     /* SW_RIGHT           (low active) */
+	MPP45_GPIO,	/* SW_IDLE            (low active) */
+	MPP46_GPIO,     /* SW_LEFT            (low active) */
+	MPP48_GPIO,	/* WLAN_LED2          (low active) - yellow */
+	0
+};
+
+#define TOPKICK_SATA0_PWR_ENABLE 36
+
+void __init usi_topkick_init(void)
+{
+	/*
+	 * Basic setup. Needs to be called early.
+	 */
+	kirkwood_mpp_conf(topkick_mpp_config);
+
+	/* SATA0 power enable */
+	gpio_set_value(TOPKICK_SATA0_PWR_ENABLE, 1);
+
+	kirkwood_ehci_init();
+	kirkwood_ge00_init(&topkick_ge00_data);
+	kirkwood_sdio_init(&topkick_mvsdio_data);
+}
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
index 95eb69b7b46c..276fc01dd6d7 100644
--- a/arch/arm/mach-kirkwood/common.h
+++ b/arch/arm/mach-kirkwood/common.h
@@ -122,6 +122,12 @@ void ns2_init(void);
 static inline void ns2_init(void) {};
 #endif
 
+#ifdef CONFIG_MACH_TOPKICK_DT
+void usi_topkick_init(void);
+#else
+static inline void usi_topkick_init(void) {};
+#endif
+
 /* early init functions not converted to fdt yet */
 char *kirkwood_id(void);
 void kirkwood_l2_init(void);