/*
 * linux/arch/arm/mach-omap1/board-innovator.c
 *
 * Board specific inits for OMAP-1510 and OMAP-1610 Innovator
 *
 * Copyright (C) 2001 RidgeRun, Inc.
 * Author: Greg Lonnon <glonnon@ridgerun.com>
 *
 * Copyright (C) 2002 MontaVista Software, Inc.
 *
 * Separated FPGA interrupts from innovator1510.c and cleaned up for 2.6
 * Copyright (C) 2004 Nokia Corporation by Tony Lindrgen <tony@atomide.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/input.h>
#include <linux/smc91x.h>
#include <linux/omapfb.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include <mach/mux.h>
#include <mach/flash.h>
#include <mach/tc.h>
#include <linux/platform_data/keypad-omap.h>

#include <mach/hardware.h>
#include <mach/usb.h>

#include "iomap.h"
#include "common.h"
#include "mmc.h"

/* At OMAP1610 Innovator the Ethernet is directly connected to CS1 */
#define INNOVATOR1610_ETHR_START        0x04000300

static const unsigned int innovator_keymap[] = {
        KEY(0, 0, KEY_F1),
        KEY(3, 0, KEY_DOWN),
        KEY(1, 1, KEY_F2),
        KEY(2, 1, KEY_RIGHT),
        KEY(0, 2, KEY_F3),
        KEY(1, 2, KEY_F4),
        KEY(2, 2, KEY_UP),
        KEY(2, 3, KEY_ENTER),
        KEY(3, 3, KEY_LEFT),
};

static struct mtd_partition innovator_partitions[] = {
        /* bootloader (U-Boot, etc) in first sector */
        {
              .name             = "bootloader",
              .offset           = 0,
              .size             = SZ_128K,
              .mask_flags       = MTD_WRITEABLE, /* force read-only */
        },
        /* bootloader params in the next sector */
        {
              .name             = "params",
              .offset           = MTDPART_OFS_APPEND,
              .size             = SZ_128K,
              .mask_flags       = 0,
        },
        /* kernel */
        {
              .name             = "kernel",
              .offset           = MTDPART_OFS_APPEND,
              .size             = SZ_2M,
              .mask_flags       = 0
        },
        /* rest of flash1 is a file system */
        {
              .name             = "rootfs",
              .offset           = MTDPART_OFS_APPEND,
              .size             = SZ_16M - SZ_2M - 2 * SZ_128K,
              .mask_flags       = 0
        },
        /* file system */
        {
              .name             = "filesystem",
              .offset           = MTDPART_OFS_APPEND,
              .size             = MTDPART_SIZ_FULL,
              .mask_flags       = 0
        }
};

static struct physmap_flash_data innovator_flash_data = {
        .width          = 2,
        .set_vpp        = omap1_set_vpp,
        .parts          = innovator_partitions,
        .nr_parts       = ARRAY_SIZE(innovator_partitions),
};

static struct resource innovator_flash_resource = {
        .start          = OMAP_CS0_PHYS,
        .end            = OMAP_CS0_PHYS + SZ_32M - 1,
        .flags          = IORESOURCE_MEM,
};

static struct platform_device innovator_flash_device = {
        .name           = "physmap-flash",
        .id             = 0,
        .dev            = {
                .platform_data  = &innovator_flash_data,
        },
        .num_resources  = 1,
        .resource       = &innovator_flash_resource,
};

static struct resource innovator_kp_resources[] = {
        [0] = {
                .start  = INT_KEYBOARD,
                .end    = INT_KEYBOARD,
                .flags  = IORESOURCE_IRQ,
        },
};

static const struct matrix_keymap_data innovator_keymap_data = {
        .keymap         = innovator_keymap,
        .keymap_size    = ARRAY_SIZE(innovator_keymap),
};

static struct omap_kp_platform_data innovator_kp_data = {
        .rows           = 8,
        .cols           = 8,
        .keymap_data    = &innovator_keymap_data,
        .delay          = 4,
};

static struct platform_device innovator_kp_device = {
        .name           = "omap-keypad",
        .id             = -1,
        .dev            = {
                .platform_data = &innovator_kp_data,
        },
        .num_resources  = ARRAY_SIZE(innovator_kp_resources),
        .resource       = innovator_kp_resources,
};

static struct smc91x_platdata innovator_smc91x_info = {
        .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
        .leda   = RPC_LED_100_10,
        .ledb   = RPC_LED_TX_RX,
};

#ifdef CONFIG_ARCH_OMAP15XX

#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>


/* Only FPGA needs to be mapped here. All others are done with ioremap */
static struct map_desc innovator1510_io_desc[] __initdata = {
        {
                .virtual        = OMAP1510_FPGA_BASE,
                .pfn            = __phys_to_pfn(OMAP1510_FPGA_START),
                .length         = OMAP1510_FPGA_SIZE,
                .type           = MT_DEVICE
        }
};

static struct resource innovator1510_smc91x_resources[] = {
        [0] = {
                .start  = OMAP1510_FPGA_ETHR_START,     /* Physical */
                .end    = OMAP1510_FPGA_ETHR_START + 0xf,
                .flags  = IORESOURCE_MEM,
        },
        [1] = {
                .start  = OMAP1510_INT_ETHER,
                .end    = OMAP1510_INT_ETHER,
                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
        },
};

static struct platform_device innovator1510_smc91x_device = {
        .name           = "smc91x",
        .id             = 0,
        .dev    = {
                .platform_data  = &innovator_smc91x_info,
        },
        .num_resources  = ARRAY_SIZE(innovator1510_smc91x_resources),
        .resource       = innovator1510_smc91x_resources,
};

static struct platform_device innovator1510_lcd_device = {
        .name           = "lcd_inn1510",
        .id             = -1,
};

static struct platform_device innovator1510_spi_device = {
        .name           = "spi_inn1510",
        .id             = -1,
};

static struct platform_device *innovator1510_devices[] __initdata = {
        &innovator_flash_device,
        &innovator1510_smc91x_device,
        &innovator_kp_device,
        &innovator1510_lcd_device,
        &innovator1510_spi_device,
};

static int innovator_get_pendown_state(void)
{
        return !(__raw_readb(OMAP1510_FPGA_TOUCHSCREEN) & (1 << 5));
}

static const struct ads7846_platform_data innovator1510_ts_info = {
        .model                  = 7846,
        .vref_delay_usecs       = 100,  /* internal, no capacitor */
        .x_plate_ohms           = 419,
        .y_plate_ohms           = 486,
        .get_pendown_state      = innovator_get_pendown_state,
};

static struct spi_board_info __initdata innovator1510_boardinfo[] = { {
        /* FPGA (bus "10") CS0 has an ads7846e */
        .modalias               = "ads7846",
        .platform_data          = &innovator1510_ts_info,
        .irq                    = OMAP1510_INT_FPGA_TS,
        .max_speed_hz           = 120000 /* max sample rate at 3V */
                                        * 26 /* command + data + overhead */,
        .bus_num                = 10,
        .chip_select            = 0,
} };

#endif /* CONFIG_ARCH_OMAP15XX */

#ifdef CONFIG_ARCH_OMAP16XX

static struct resource innovator1610_smc91x_resources[] = {
        [0] = {
                .start  = INNOVATOR1610_ETHR_START,             /* Physical */
                .end    = INNOVATOR1610_ETHR_START + 0xf,
                .flags  = IORESOURCE_MEM,
        },
        [1] = {
                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
        },
};

static struct platform_device innovator1610_smc91x_device = {
        .name           = "smc91x",
        .id             = 0,
        .dev    = {
                .platform_data  = &innovator_smc91x_info,
        },
        .num_resources  = ARRAY_SIZE(innovator1610_smc91x_resources),
        .resource       = innovator1610_smc91x_resources,
};

static struct platform_device innovator1610_lcd_device = {
        .name           = "inn1610_lcd",
        .id             = -1,
};

static struct platform_device *innovator1610_devices[] __initdata = {
        &innovator_flash_device,
        &innovator1610_smc91x_device,
        &innovator_kp_device,
        &innovator1610_lcd_device,
};

#endif /* CONFIG_ARCH_OMAP16XX */

static void __init innovator_init_smc91x(void)
{
        if (cpu_is_omap1510()) {
                __raw_writeb(__raw_readb(OMAP1510_FPGA_RST) & ~1,
                           OMAP1510_FPGA_RST);
                udelay(750);
        } else {
                if (gpio_request(0, "SMC91x irq") < 0) {
                        printk("Error requesting gpio 0 for smc91x irq\n");
                        return;
                }
        }
}

#ifdef CONFIG_ARCH_OMAP15XX
static struct omap_usb_config innovator1510_usb_config __initdata = {
        /* for bundled non-standard host and peripheral cables */
        .hmc_mode       = 4,

        .register_host  = 1,
        .pins[1]        = 6,
        .pins[2]        = 6,            /* Conflicts with UART2 */

        .register_dev   = 1,
        .pins[0]        = 2,
};

static struct omap_lcd_config innovator1510_lcd_config __initdata = {
        .ctrl_name      = "internal",
};
#endif

#ifdef CONFIG_ARCH_OMAP16XX
static struct omap_usb_config h2_usb_config __initdata = {
        /* usb1 has a Mini-AB port and external isp1301 transceiver */
        .otg            = 2,

#ifdef  CONFIG_USB_GADGET_OMAP
        .hmc_mode       = 19,   /* 0:host(off) 1:dev|otg 2:disabled */
        /* .hmc_mode    = 21,*/ /* 0:host(off) 1:dev(loopback) 2:host(loopback) */
#elif   defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
        /* NONSTANDARD CABLE NEEDED (B-to-Mini-B) */
        .hmc_mode       = 20,   /* 1:dev|otg(off) 1:host 2:disabled */
#endif

        .pins[1]        = 3,
};

static struct omap_lcd_config innovator1610_lcd_config __initdata = {
        .ctrl_name      = "internal",
};
#endif

#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)

static int mmc_set_power(struct device *dev, int slot, int power_on,
                                int vdd)
{
        if (power_on)
                __raw_writeb(__raw_readb(OMAP1510_FPGA_POWER) | (1 << 3),
                                OMAP1510_FPGA_POWER);
        else
                __raw_writeb(__raw_readb(OMAP1510_FPGA_POWER) & ~(1 << 3),
                                OMAP1510_FPGA_POWER);

        return 0;
}

/*
 * Innovator could use the following functions tested:
 * - mmc_get_wp that uses OMAP_MPUIO(3)
 * - mmc_get_cover_state that uses FPGA F4 UIO43
 */
static struct omap_mmc_platform_data mmc1_data = {
        .nr_slots                       = 1,
        .slots[0]       = {
                .set_power              = mmc_set_power,
                .wires                  = 4,
                .name                   = "mmcblk",
        },
};

static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];

static void __init innovator_mmc_init(void)
{
        mmc_data[0] = &mmc1_data;
        omap1_init_mmc(mmc_data, OMAP15XX_NR_MMC);
}

#else
static inline void innovator_mmc_init(void)
{
}
#endif

static void __init innovator_init(void)
{
        if (cpu_is_omap1510())
                omap1510_fpga_init_irq();
        innovator_init_smc91x();

#ifdef CONFIG_ARCH_OMAP15XX
        if (cpu_is_omap1510()) {
                unsigned char reg;

                /* mux pins for uarts */
                omap_cfg_reg(UART1_TX);
                omap_cfg_reg(UART1_RTS);
                omap_cfg_reg(UART2_TX);
                omap_cfg_reg(UART2_RTS);
                omap_cfg_reg(UART3_TX);
                omap_cfg_reg(UART3_RX);

                reg = __raw_readb(OMAP1510_FPGA_POWER);
                reg |= OMAP1510_FPGA_PCR_COM1_EN;
                __raw_writeb(reg, OMAP1510_FPGA_POWER);
                udelay(10);

                reg = __raw_readb(OMAP1510_FPGA_POWER);
                reg |= OMAP1510_FPGA_PCR_COM2_EN;
                __raw_writeb(reg, OMAP1510_FPGA_POWER);
                udelay(10);

                platform_add_devices(innovator1510_devices, ARRAY_SIZE(innovator1510_devices));
                spi_register_board_info(innovator1510_boardinfo,
                                ARRAY_SIZE(innovator1510_boardinfo));
        }
#endif
#ifdef CONFIG_ARCH_OMAP16XX
        if (!cpu_is_omap1510()) {
                innovator1610_smc91x_resources[1].start = gpio_to_irq(0);
                innovator1610_smc91x_resources[1].end = gpio_to_irq(0);
                platform_add_devices(innovator1610_devices, ARRAY_SIZE(innovator1610_devices));
        }
#endif

#ifdef CONFIG_ARCH_OMAP15XX
        if (cpu_is_omap1510()) {
                omap1_usb_init(&innovator1510_usb_config);
                omapfb_set_lcd_config(&innovator1510_lcd_config);
        }
#endif
#ifdef CONFIG_ARCH_OMAP16XX
        if (cpu_is_omap1610()) {
                omap1_usb_init(&h2_usb_config);
                omapfb_set_lcd_config(&innovator1610_lcd_config);
        }
#endif
        omap_serial_init();
        omap_register_i2c_bus(1, 100, NULL, 0);
        innovator_mmc_init();
}

/*
 * REVISIT: Assume 15xx for now, we don't want to do revision check
 * until later on. The right way to fix this is to set up a different
 * machine_id for 16xx Innovator, or use device tree.
 */
static void __init innovator_map_io(void)
{
#ifdef CONFIG_ARCH_OMAP15XX
        omap15xx_map_io();

        iotable_init(innovator1510_io_desc, ARRAY_SIZE(innovator1510_io_desc));
        udelay(10);     /* Delay needed for FPGA */

        /* Dump the Innovator FPGA rev early - useful info for support. */
        pr_debug("Innovator FPGA Rev %d.%d Board Rev %d\n",
                        __raw_readb(OMAP1510_FPGA_REV_HIGH),
                        __raw_readb(OMAP1510_FPGA_REV_LOW),
                        __raw_readb(OMAP1510_FPGA_BOARD_REV));
#endif
}

MACHINE_START(OMAP_INNOVATOR, "TI-Innovator")
        /* Maintainer: MontaVista Software, Inc. */
        .atag_offset    = 0x100,
        .map_io         = innovator_map_io,
        .init_early     = omap1_init_early,
        .init_irq       = omap1_init_irq,
        .init_machine   = innovator_init,
        .init_late      = omap1_init_late,
        .init_time      = omap1_timer_init,
        .restart        = omap1_restart,
MACHINE_END