sh: Add support for AP-SH4A-3A board.

This adds preliminary support for the alpha project AP-SH4A-3A reference
platform (SH7785 based).

Additional paltform information available at:

	http://www.apnet.co.jp/product/superh/ap-sh4a-3a.html

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

3 files changed, 183 insertions, 0 deletions

diff --git a/arch/sh/boards/Kconfig b/arch/sh/boards/Kconfig
index 3bac817e025e..4875d0bb01f0 100644
--- a/arch/sh/boards/Kconfig
+++ b/arch/sh/boards/Kconfig
@@ -323,6 +323,13 @@ config SH_SH2007
           Compact Flash socket, two serial ports and PC-104 bus.
           More information at <http://sh2000.sh-linux.org>.
 
+config SH_APSH4A3A
+        bool "AP-SH4A-3A"
+        select SH_ALPHA_BOARD
+        depends on CPU_SUBTYPE_SH7785
+        help
+          Select AP-SH4A-3A if configuring for an ALPHAPROJECT AP-SH4A-3A.
+
 endmenu
 
 source "arch/sh/boards/mach-r2d/Kconfig"
diff --git a/arch/sh/boards/Makefile b/arch/sh/boards/Makefile
index be7d11d04b26..54c0458811ba 100644
--- a/arch/sh/boards/Makefile
+++ b/arch/sh/boards/Makefile
@@ -13,3 +13,4 @@ obj-$(CONFIG_SH_ESPT)		+= board-espt.o
 obj-$(CONFIG_SH_POLARIS)        += board-polaris.o
 obj-$(CONFIG_SH_TITAN)          += board-titan.o
 obj-$(CONFIG_SH_SH7757LCR)      += board-sh7757lcr.o
+obj-$(CONFIG_SH_APSH4A3A)       += board-apsh4a3a.o
diff --git a/arch/sh/boards/board-apsh4a3a.c b/arch/sh/boards/board-apsh4a3a.c
new file mode 100644
index 000000000000..8e2a27057bc9
--- /dev/null
+++ b/arch/sh/boards/board-apsh4a3a.c
@@ -0,0 +1,175 @@
+/*
+ * ALPHAPROJECT AP-SH4A-3A Support.
+ *
+ * Copyright (C) 2010 ALPHAPROJECT Co.,Ltd.
+ * Copyright (C) 2008  Yoshihiro Shimoda
+ * Copyright (C) 2009  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/mtd/physmap.h>
+#include <linux/smsc911x.h>
+#include <linux/irq.h>
+#include <linux/clk.h>
+#include <asm/machvec.h>
+#include <asm/sizes.h>
+#include <asm/clock.h>
+
+static struct mtd_partition nor_flash_partitions[] = {
+        {
+                .name           = "loader",
+                .offset         = 0x00000000,
+                .size           = 512 * 1024,
+        },
+        {
+                .name           = "bootenv",
+                .offset         = MTDPART_OFS_APPEND,
+                .size           = 512 * 1024,
+        },
+        {
+                .name           = "kernel",
+                .offset         = MTDPART_OFS_APPEND,
+                .size           = 4 * 1024 * 1024,
+        },
+        {
+                .name           = "data",
+                .offset         = MTDPART_OFS_APPEND,
+                .size           = MTDPART_SIZ_FULL,
+        },
+};
+
+static struct physmap_flash_data nor_flash_data = {
+        .width          = 4,
+        .parts          = nor_flash_partitions,
+        .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
+};
+
+static struct resource nor_flash_resources[] = {
+        [0]     = {
+                .start  = 0x00000000,
+                .end    = 0x01000000 - 1,
+                .flags  = IORESOURCE_MEM,
+        }
+};
+
+static struct platform_device nor_flash_device = {
+        .name           = "physmap-flash",
+        .dev            = {
+                .platform_data  = &nor_flash_data,
+        },
+        .num_resources  = ARRAY_SIZE(nor_flash_resources),
+        .resource       = nor_flash_resources,
+};
+
+static struct resource smsc911x_resources[] = {
+        [0] = {
+                .name           = "smsc911x-memory",
+                .start          = 0xA4000000,
+                .end            = 0xA4000000 + SZ_256 - 1,
+                .flags          = IORESOURCE_MEM,
+        },
+        [1] = {
+                .name           = "smsc911x-irq",
+                .start          = evt2irq(0x200),
+                .end            = evt2irq(0x200),
+                .flags          = IORESOURCE_IRQ,
+        },
+};
+
+static struct smsc911x_platform_config smsc911x_config = {
+        .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
+        .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
+        .flags          = SMSC911X_USE_16BIT,
+        .phy_interface  = PHY_INTERFACE_MODE_MII,
+};
+
+static struct platform_device smsc911x_device = {
+        .name           = "smsc911x",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(smsc911x_resources),
+        .resource       = smsc911x_resources,
+        .dev = {
+                .platform_data = &smsc911x_config,
+        },
+};
+
+static struct platform_device *apsh4a3a_devices[] __initdata = {
+        &nor_flash_device,
+        &smsc911x_device,
+};
+
+static int __init apsh4a3a_devices_setup(void)
+{
+        return platform_add_devices(apsh4a3a_devices,
+                                    ARRAY_SIZE(apsh4a3a_devices));
+}
+device_initcall(apsh4a3a_devices_setup);
+
+static int apsh4a3a_clk_init(void)
+{
+        struct clk *clk;
+        int ret;
+
+        clk = clk_get(NULL, "extal");
+        if (!clk || IS_ERR(clk))
+                return PTR_ERR(clk);
+        ret = clk_set_rate(clk, 33333000);
+        clk_put(clk);
+
+        return ret;
+}
+
+/* Initialize the board */
+static void __init apsh4a3a_setup(char **cmdline_p)
+{
+        printk(KERN_INFO "Alpha Project AP-SH4A-3A support:\n");
+}
+
+static void __init apsh4a3a_init_irq(void)
+{
+        plat_irq_setup_pins(IRQ_MODE_IRQ7654);
+}
+
+/* Return the board specific boot mode pin configuration */
+static int apsh4a3a_mode_pins(void)
+{
+        int value = 0;
+
+        /* These are the factory default settings of SW1 and SW2.
+         * If you change these dip switches then you will need to
+         * adjust the values below as well.
+         */
+        value &= ~MODE_PIN0;  /* Clock Mode 16 */
+        value &= ~MODE_PIN1;
+        value &= ~MODE_PIN2;
+        value &= ~MODE_PIN3;
+        value |=  MODE_PIN4;
+        value &= ~MODE_PIN5;  /* 16-bit Area0 bus width */
+        value |=  MODE_PIN6;  /* Area 0 SRAM interface */
+        value |=  MODE_PIN7;
+        value |=  MODE_PIN8;  /* Little Endian */
+        value |=  MODE_PIN9;  /* Master Mode */
+        value |=  MODE_PIN10; /* Crystal resonator */
+        value |=  MODE_PIN11; /* Display Unit */
+        value |=  MODE_PIN12;
+        value &= ~MODE_PIN13; /* 29-bit address mode */
+        value |=  MODE_PIN14; /* No PLL step-up */
+
+        return value;
+}
+
+/*
+ * The Machine Vector
+ */
+static struct sh_machine_vector mv_apsh4a3a __initmv = {
+        .mv_name                = "AP-SH4A-3A",
+        .mv_setup               = apsh4a3a_setup,
+        .mv_clk_init            = apsh4a3a_clk_init,
+        .mv_init_irq            = apsh4a3a_init_irq,
+        .mv_mode_pins           = apsh4a3a_mode_pins,
+};