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>

8 files changed, 187 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 77fce3f63946..df3a8ae9224f 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -44,6 +44,7 @@ dtb-$(CONFIG_ARCH_KIRKWOOD) += kirkwood-dns320.dtb \
         kirkwood-ns2lite.dtb \
         kirkwood-ns2max.dtb \
         kirkwood-ns2mini.dtb \
+        kirkwood-topkick.dtb \
         kirkwood-ts219-6281.dtb \
         kirkwood-ts219-6282.dtb
 dtb-$(CONFIG_ARCH_MSM) += msm8660-surf.dtb \
diff --git a/arch/arm/boot/dts/kirkwood-topkick.dts b/arch/arm/boot/dts/kirkwood-topkick.dts
new file mode 100644
index 000000000000..c0de5a7f660d
--- /dev/null
+++ b/arch/arm/boot/dts/kirkwood-topkick.dts
@@ -0,0 +1,85 @@
+/dts-v1/;
+
+/include/ "kirkwood.dtsi"
+
+/ {
+        model = "Univeral Scientific Industrial Co. Topkick-1281P2";
+        compatible = "usi,topkick-1281P2", "usi,topkick", "marvell,kirkwood-88f6282", "marvell,kirkwood";
+
+        memory {
+                device_type = "memory";
+                reg = <0x00000000 0x10000000>;
+        };
+
+        chosen {
+                bootargs = "console=ttyS0,115200n8 earlyprintk";
+        };
+
+        ocp@f1000000 {
+                serial@12000 {
+                        clock-frequency = <200000000>;
+                        status = "ok";
+                };
+
+                nand@3000000 {
+                        status = "okay";
+
+                        partition@0 {
+                                label = "u-boot";
+                                reg = <0x0000000 0x180000>;
+                        };
+
+                        partition@180000 {
+                                label = "u-boot env";
+                                reg = <0x0180000 0x20000>;
+                        };
+
+                        partition@200000 {
+                                label = "uImage";
+                                reg = <0x0200000 0x600000>;
+                        };
+
+                        partition@800000 {
+                                label = "uInitrd";
+                                reg = <0x0800000 0x1000000>;
+                        };
+
+                        partition@1800000 {
+                                label = "rootfs";
+                                reg = <0x1800000 0xe800000>;
+                        };
+                };
+
+                sata@80000 {
+                        status = "okay";
+                        nr-ports = <1>;
+                };
+        };
+
+        gpio-leds {
+                compatible = "gpio-leds";
+
+                disk {
+                        label = "topkick:yellow:disk";
+                        gpios = <&gpio0 21 1>;
+                        linux,default-trigger = "ide-disk";
+                };
+                system2 {
+                        label = "topkick:red:system";
+                        gpios = <&gpio1 5 1>;
+                };
+                system {
+                        label = "topkick:blue:system";
+                        gpios = <&gpio1 6 1>;
+                        default-state = "on";
+                };
+                wifi {
+                        label = "topkick:green:wifi";
+                        gpios = <&gpio1 7 1>;
+                };
+                wifi2 {
+                        label = "topkick:yellow:wifi";
+                        gpios = <&gpio1 16 1>;
+                };
+        };
+};
diff --git a/arch/arm/configs/kirkwood_defconfig b/arch/arm/configs/kirkwood_defconfig
index 66f7ae76f0d5..006b7b95caca 100644
--- a/arch/arm/configs/kirkwood_defconfig
+++ b/arch/arm/configs/kirkwood_defconfig
@@ -32,6 +32,7 @@ CONFIG_MACH_NETSPACE_V2_DT=y
 CONFIG_MACH_NETSPACE_MAX_V2_DT=y
 CONFIG_MACH_NETSPACE_LITE_V2_DT=y
 CONFIG_MACH_NETSPACE_MINI_V2_DT=y
+CONFIG_MACH_TOPKICK_DT=y
 CONFIG_MACH_TS219=y
 CONFIG_MACH_TS41X=y
 CONFIG_MACH_DOCKSTAR=y
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);