1 files changed, 219 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..b460dcc785c1
--- /dev/null
+++ b/arch/sh/boards/mach-sdk7786/setup.c
@@ -0,0 +1,219 @@
+/*
+ * 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 <asm/machvec.h>
+#include <asm/sizes.h>
+
+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 = {
+        &smsc911x_device,
+        &smbus_fpga_device,
+        &smbus_pcie_device,
+};
+
+#define SBCR_REGS_BASE  0x07fff990
+
+#define SCBR_I2CMEN     (1 << 0)        /* FPGA I2C master enable */
+#define SCBR_I2CCEN     (1 << 1)        /* CPU I2C master enable */
+
+static int sdk7786_i2c_setup(void)
+{
+        void __iomem *sbcr;
+        unsigned int tmp;
+
+        sbcr = ioremap_nocache(SBCR_REGS_BASE, SZ_16);
+
+        /*
+         * Hand over I2C control to the FPGA.
+         */
+        tmp = ioread16(sbcr);
+        tmp &= ~SCBR_I2CCEN;
+        tmp |= SCBR_I2CMEN;
+        iowrite16(tmp, sbcr);
+
+        iounmap(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);
+
+#define FPGA_REGS_BASE  0x07fff800
+#define FPGA_REGS_SIZE  1152
+
+#define INTASR          0x010
+#define INTAMR          0x020
+#define INTBSR          0x090
+#define INTBMR          0x0a0
+#define INTMSR          0x130
+
+#define IASELR1         0x210
+#define IASELR2         0x220
+#define IASELR3         0x230
+#define IASELR4         0x240
+#define IASELR5         0x250
+#define IASELR6         0x260
+#define IASELR7         0x270
+#define IASELR8         0x280
+#define IASELR9         0x290
+#define IASELR10        0x2a0
+#define IASELR11        0x2b0
+#define IASELR12        0x2c0
+#define IASELR13        0x2d0
+#define IASELR14        0x2e0
+#define IASELR15        0x2f0
+
+static void __iomem *fpga_regs;
+
+static u16 fpga_read_reg(unsigned int reg)
+{
+        return __raw_readw(fpga_regs + reg);
+}
+
+static void fpga_write_reg(u16 val, unsigned int reg)
+{
+        __raw_writew(val, fpga_regs + reg);
+}
+
+enum {
+        ATA_IRQ_BIT             = 1,
+        SPI_BUSY_BIT            = 2,
+        LIRQ5_BIT               = 3,
+        LIRQ6_BIT               = 4,
+        LIRQ7_BIT               = 5,
+        LIRQ8_BIT               = 6,
+        KEY_IRQ_BIT             = 7,
+        PEN_IRQ_BIT             = 8,
+        ETH_IRQ_BIT             = 9,
+        RTC_ALARM_BIT           = 10,
+        CRYSTAL_FAIL_BIT        = 12,
+        ETH_PME_BIT             = 14,
+};
+
+static void __init init_sdk7786_IRQ(void)
+{
+        unsigned int tmp;
+
+        fpga_regs = ioremap_nocache(FPGA_REGS_BASE, FPGA_REGS_SIZE);
+        if (!fpga_regs) {
+                printk(KERN_ERR "Couldn't map FPGA registers\n");
+                return;
+        }
+
+        /* Enable priority encoding for all IRLs */
+        fpga_write_reg(fpga_read_reg(INTMSR) | 0x0303, INTMSR);
+
+        /* Clear FPGA interrupt status registers */
+        fpga_write_reg(0x0000, INTASR);
+        fpga_write_reg(0x0000, INTBSR);
+
+        /* Unmask FPGA interrupts */
+        tmp = fpga_read_reg(INTAMR);
+        tmp &= ~(1 << ETH_IRQ_BIT);
+        fpga_write_reg(tmp, INTAMR);
+
+        plat_irq_setup_pins(IRQ_MODE_IRL7654_MASK);
+        plat_irq_setup_pins(IRQ_MODE_IRL3210_MASK);
+}
+
+/* Initialize the board */
+static void __init sdk7786_setup(char **cmdline_p)
+{
+        printk(KERN_INFO "Renesas Technology Corp. SDK7786 support.\n");
+}
+
+/*
+ * The Machine Vector
+ */
+static struct sh_machine_vector mv_sdk7786 __initmv = {
+        .mv_name                = "SDK7786",
+        .mv_setup               = sdk7786_setup,
+        .mv_init_irq            = init_sdk7786_IRQ,
+};