1 files changed, 189 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-sdk7786/setup.c b/arch/sh/boards/mach-sdk7786/setup.c
new file mode 100644
index 000000000000..f094ea2ee783
--- /dev/null
+++ b/arch/sh/boards/mach-sdk7786/setup.c
@@ -0,0 +1,189 @@
+/*
+ * Renesas Technology Europe SDK7786 Support.
+ *
+ * Copyright (C) 2010  Matt Fleming
+ * Copyright (C) 2010  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/smsc911x.h>
+#include <linux/i2c.h>
+#include <linux/irq.h>
+#include <linux/clk.h>
+#include <mach/fpga.h>
+#include <mach/irq.h>
+#include <asm/machvec.h>
+#include <asm/heartbeat.h>
+#include <asm/sizes.h>
+#include <asm/reboot.h>
+
+static struct resource heartbeat_resource = {
+	.start		= 0x07fff8b0,
+	.end		= 0x07fff8b0 + sizeof(u16) - 1,
+	.flags		= IORESOURCE_MEM | IORESOURCE_MEM_16BIT,
+};
+
+static struct platform_device heartbeat_device = {
+	.name		= "heartbeat",
+	.id		= -1,
+	.num_resources	= 1,
+	.resource	= &heartbeat_resource,
+};
+
+static struct resource smsc911x_resources[] = {
+	[0] = {
+		.name		= "smsc911x-memory",
+		.start		= 0x07ffff00,
+		.end		= 0x07ffff00 + SZ_256 - 1,
+		.flags		= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name		= "smsc911x-irq",
+		.start		= evt2irq(0x2c0),
+		.end		= evt2irq(0x2c0),
+		.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_32BIT,
+	.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 resource smbus_fpga_resource = {
+	.start		= 0x07fff9e0,
+	.end		= 0x07fff9e0 + SZ_32 - 1,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device smbus_fpga_device = {
+	.name		= "i2c-sdk7786",
+	.id		= 0,
+	.num_resources	= 1,
+	.resource	= &smbus_fpga_resource,
+};
+
+static struct resource smbus_pcie_resource = {
+	.start		= 0x07fffc30,
+	.end		= 0x07fffc30 + SZ_32 - 1,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device smbus_pcie_device = {
+	.name		= "i2c-sdk7786",
+	.id		= 1,
+	.num_resources	= 1,
+	.resource	= &smbus_pcie_resource,
+};
+
+static struct i2c_board_info __initdata sdk7786_i2c_devices[] = {
+	{
+		I2C_BOARD_INFO("max6900", 0x68),
+	},
+};
+
+static struct platform_device *sh7786_devices[] __initdata = {
+	&heartbeat_device,
+	&smsc911x_device,
+	&smbus_fpga_device,
+	&smbus_pcie_device,
+};
+
+static int sdk7786_i2c_setup(void)
+{
+	unsigned int tmp;
+
+	/*
+	 * Hand over I2C control to the FPGA.
+	 */
+	tmp = fpga_read_reg(SBCR);
+	tmp &= ~SCBR_I2CCEN;
+	tmp |= SCBR_I2CMEN;
+	fpga_write_reg(tmp, SBCR);
+
+	return i2c_register_board_info(0, sdk7786_i2c_devices,
+				       ARRAY_SIZE(sdk7786_i2c_devices));
+}
+
+static int __init sdk7786_devices_setup(void)
+{
+	int ret;
+
+	ret = platform_add_devices(sh7786_devices, ARRAY_SIZE(sh7786_devices));
+	if (unlikely(ret != 0))
+		return ret;
+
+	return sdk7786_i2c_setup();
+}
+__initcall(sdk7786_devices_setup);
+
+static int sdk7786_mode_pins(void)
+{
+	return fpga_read_reg(MODSWR);
+}
+
+static int sdk7786_clk_init(void)
+{
+	struct clk *clk;
+	int ret;
+
+	/*
+	 * Only handle the EXTAL case, anyone interfacing a crystal
+	 * resonator will need to provide their own input clock.
+	 */
+	if (test_mode_pin(MODE_PIN9))
+		return -EINVAL;
+
+	clk = clk_get(NULL, "extal");
+	if (!clk || IS_ERR(clk))
+		return PTR_ERR(clk);
+	ret = clk_set_rate(clk, 33333333);
+	clk_put(clk);
+
+	return ret;
+}
+
+static void sdk7786_restart(char *cmd)
+{
+	fpga_write_reg(0xa5a5, SRSTR);
+}
+
+/* Initialize the board */
+static void __init sdk7786_setup(char **cmdline_p)
+{
+	pr_info("Renesas Technology Europe SDK7786 support:\n");
+
+	sdk7786_fpga_init();
+
+	pr_info("\tPCB revision:\t%d\n", fpga_read_reg(PCBRR) & 0xf);
+
+	machine_ops.restart = sdk7786_restart;
+}
+
+/*
+ * The Machine Vector
+ */
+static struct sh_machine_vector mv_sdk7786 __initmv = {
+	.mv_name		= "SDK7786",
+	.mv_setup		= sdk7786_setup,
+	.mv_mode_pins		= sdk7786_mode_pins,
+	.mv_clk_init		= sdk7786_clk_init,
+	.mv_init_irq		= sdk7786_init_irq,
+};