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dev.c

/*
 * linux/arch/arm/mach-w90x900/dev.c
 *
 * Copyright (C) 2009 Nuvoton corporation.
 *
 * Wan ZongShun <mcuos.com@gmail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation;version 2 of the License.
 *
 */

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/slab.h>

#include <linux/mtd/physmap.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>

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

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

#include <mach/regs-serial.h>
#include <mach/nuc900_spi.h>
#include <mach/map.h>
#include <mach/fb.h>
#include <mach/regs-ldm.h>
#include <mach/w90p910_keypad.h>

#include "cpu.h"

/*NUC900 evb norflash driver data */

#define NUC900_FLASH_BASE     0xA0000000
#define NUC900_FLASH_SIZE     0x400000
#define SPIOFFSET       0x200
#define SPIOREG_SIZE          0x100

static struct mtd_partition nuc900_flash_partitions[] = {
      {
            .name =     "NOR Partition 1 for kernel (960K)",
            .size =     0xF0000,
            .offset     =     0x10000,
      },
      {
            .name =     "NOR Partition 2 for image (1M)",
            .size =     0x100000,
            .offset     =     0x100000,
      },
      {
            .name =     "NOR Partition 3 for user (2M)",
            .size =     0x200000,
            .offset     =     0x00200000,
      }
};

static struct physmap_flash_data nuc900_flash_data = {
      .width            =     2,
      .parts            =     nuc900_flash_partitions,
      .nr_parts   =     ARRAY_SIZE(nuc900_flash_partitions),
};

static struct resource nuc900_flash_resources[] = {
      {
            .start      =     NUC900_FLASH_BASE,
            .end  =     NUC900_FLASH_BASE + NUC900_FLASH_SIZE - 1,
            .flags      =     IORESOURCE_MEM,
      }
};

static struct platform_device nuc900_flash_device = {
      .name       =     "physmap-flash",
      .id         =     0,
      .dev        = {
                        .platform_data = &nuc900_flash_data,
                  },
      .resource   =     nuc900_flash_resources,
      .num_resources    =     ARRAY_SIZE(nuc900_flash_resources),
};

/* USB EHCI Host Controller */

static struct resource nuc900_usb_ehci_resource[] = {
      [0] = {
            .start = W90X900_PA_USBEHCIHOST,
            .end   = W90X900_PA_USBEHCIHOST + W90X900_SZ_USBEHCIHOST - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_USBH,
            .end   = IRQ_USBH,
            .flags = IORESOURCE_IRQ,
      }
};

static u64 nuc900_device_usb_ehci_dmamask = 0xffffffffUL;

static struct platform_device nuc900_device_usb_ehci = {
      .name         = "nuc900-ehci",
      .id           = -1,
      .num_resources      = ARRAY_SIZE(nuc900_usb_ehci_resource),
      .resource     = nuc900_usb_ehci_resource,
      .dev              = {
            .dma_mask = &nuc900_device_usb_ehci_dmamask,
            .coherent_dma_mask = 0xffffffffUL
      }
};

/* USB OHCI Host Controller */

static struct resource nuc900_usb_ohci_resource[] = {
      [0] = {
            .start = W90X900_PA_USBOHCIHOST,
            .end   = W90X900_PA_USBOHCIHOST + W90X900_SZ_USBOHCIHOST - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_USBH,
            .end   = IRQ_USBH,
            .flags = IORESOURCE_IRQ,
      }
};

static u64 nuc900_device_usb_ohci_dmamask = 0xffffffffUL;
static struct platform_device nuc900_device_usb_ohci = {
      .name         = "nuc900-ohci",
      .id           = -1,
      .num_resources      = ARRAY_SIZE(nuc900_usb_ohci_resource),
      .resource     = nuc900_usb_ohci_resource,
      .dev              = {
            .dma_mask = &nuc900_device_usb_ohci_dmamask,
            .coherent_dma_mask = 0xffffffffUL
      }
};

/* USB Device (Gadget)*/

static struct resource nuc900_usbgadget_resource[] = {
      [0] = {
            .start = W90X900_PA_USBDEV,
            .end   = W90X900_PA_USBDEV + W90X900_SZ_USBDEV - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_USBD,
            .end   = IRQ_USBD,
            .flags = IORESOURCE_IRQ,
      }
};

static struct platform_device nuc900_device_usbgadget = {
      .name       = "nuc900-usbgadget",
      .id         = -1,
      .num_resources    = ARRAY_SIZE(nuc900_usbgadget_resource),
      .resource   = nuc900_usbgadget_resource,
};

/* MAC device */

static struct resource nuc900_emc_resource[] = {
      [0] = {
            .start = W90X900_PA_EMC,
            .end   = W90X900_PA_EMC + W90X900_SZ_EMC - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_EMCTX,
            .end   = IRQ_EMCTX,
            .flags = IORESOURCE_IRQ,
      },
      [2] = {
            .start = IRQ_EMCRX,
            .end   = IRQ_EMCRX,
            .flags = IORESOURCE_IRQ,
      }
};

static u64 nuc900_device_emc_dmamask = 0xffffffffUL;
static struct platform_device nuc900_device_emc = {
      .name       = "nuc900-emc",
      .id         = -1,
      .num_resources    = ARRAY_SIZE(nuc900_emc_resource),
      .resource   = nuc900_emc_resource,
      .dev              = {
            .dma_mask = &nuc900_device_emc_dmamask,
            .coherent_dma_mask = 0xffffffffUL
      }
};

/* SPI device */

static struct nuc900_spi_info nuc900_spiflash_data = {
      .num_cs           = 1,
      .lsb        = 0,
      .txneg            = 1,
      .rxneg            = 0,
      .divider    = 24,
      .sleep            = 0,
      .txnum            = 0,
      .txbitlen   = 8,
      .bus_num    = 0,
};

static struct resource nuc900_spi_resource[] = {
      [0] = {
            .start = W90X900_PA_I2C + SPIOFFSET,
            .end   = W90X900_PA_I2C + SPIOFFSET + SPIOREG_SIZE - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_SSP,
            .end   = IRQ_SSP,
            .flags = IORESOURCE_IRQ,
      }
};

static struct platform_device nuc900_device_spi = {
      .name       = "nuc900-spi",
      .id         = -1,
      .num_resources    = ARRAY_SIZE(nuc900_spi_resource),
      .resource   = nuc900_spi_resource,
      .dev        = {
                        .platform_data = &nuc900_spiflash_data,
                  }
};

/* spi device, spi flash info */

static struct mtd_partition nuc900_spi_flash_partitions[] = {
      {
            .name = "bootloader(spi)",
            .size = 0x0100000,
            .offset = 0,
      },
};

static struct flash_platform_data nuc900_spi_flash_data = {
      .name = "m25p80",
      .parts =  nuc900_spi_flash_partitions,
      .nr_parts = ARRAY_SIZE(nuc900_spi_flash_partitions),
      .type = "w25x16",
};

static struct spi_board_info nuc900_spi_board_info[] __initdata = {
      {
            .modalias = "m25p80",
            .max_speed_hz = 20000000,
            .bus_num = 0,
            .chip_select = 0,
            .platform_data = &nuc900_spi_flash_data,
            .mode = SPI_MODE_0,
      },
};

/* WDT Device */

static struct resource nuc900_wdt_resource[] = {
      [0] = {
            .start = W90X900_PA_TIMER,
            .end   = W90X900_PA_TIMER + W90X900_SZ_TIMER - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_WDT,
            .end   = IRQ_WDT,
            .flags = IORESOURCE_IRQ,
      }
};

static struct platform_device nuc900_device_wdt = {
      .name       = "nuc900-wdt",
      .id         = -1,
      .num_resources    = ARRAY_SIZE(nuc900_wdt_resource),
      .resource   = nuc900_wdt_resource,
};

/*
 * public device definition between 910 and 920, or 910
 * and 950 or 950 and 960...,their dev platform register
 * should be in specific file such as nuc950, nuc960 c
 * files rather than the public dev.c file here. so the
 * corresponding platform_device definition should not be
 * static.
*/

/* RTC controller*/

static struct resource nuc900_rtc_resource[] = {
      [0] = {
            .start = W90X900_PA_RTC,
            .end   = W90X900_PA_RTC + 0xff,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_RTC,
            .end   = IRQ_RTC,
            .flags = IORESOURCE_IRQ,
      },
};

struct platform_device nuc900_device_rtc = {
      .name       = "nuc900-rtc",
      .id         = -1,
      .num_resources    = ARRAY_SIZE(nuc900_rtc_resource),
      .resource   = nuc900_rtc_resource,
};

/*TouchScreen controller*/

static struct resource nuc900_ts_resource[] = {
      [0] = {
            .start = W90X900_PA_ADC,
            .end   = W90X900_PA_ADC + W90X900_SZ_ADC-1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_ADC,
            .end   = IRQ_ADC,
            .flags = IORESOURCE_IRQ,
      },
};

struct platform_device nuc900_device_ts = {
      .name       = "nuc900-ts",
      .id         = -1,
      .resource   = nuc900_ts_resource,
      .num_resources    = ARRAY_SIZE(nuc900_ts_resource),
};

/* FMI Device */

static struct resource nuc900_fmi_resource[] = {
      [0] = {
            .start = W90X900_PA_FMI,
            .end   = W90X900_PA_FMI + W90X900_SZ_FMI - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_FMI,
            .end   = IRQ_FMI,
            .flags = IORESOURCE_IRQ,
      }
};

struct platform_device nuc900_device_fmi = {
      .name       = "nuc900-fmi",
      .id         = -1,
      .num_resources    = ARRAY_SIZE(nuc900_fmi_resource),
      .resource   = nuc900_fmi_resource,
};

/* KPI controller*/

static int nuc900_keymap[] = {
      KEY(0, 0, KEY_A),
      KEY(0, 1, KEY_B),
      KEY(0, 2, KEY_C),
      KEY(0, 3, KEY_D),

      KEY(1, 0, KEY_E),
      KEY(1, 1, KEY_F),
      KEY(1, 2, KEY_G),
      KEY(1, 3, KEY_H),

      KEY(2, 0, KEY_I),
      KEY(2, 1, KEY_J),
      KEY(2, 2, KEY_K),
      KEY(2, 3, KEY_L),

      KEY(3, 0, KEY_M),
      KEY(3, 1, KEY_N),
      KEY(3, 2, KEY_O),
      KEY(3, 3, KEY_P),
};

static struct matrix_keymap_data nuc900_map_data = {
      .keymap                 = nuc900_keymap,
      .keymap_size            = ARRAY_SIZE(nuc900_keymap),
};

struct w90p910_keypad_platform_data nuc900_keypad_info = {
      .keymap_data      = &nuc900_map_data,
      .prescale   = 0xfa,
      .debounce   = 0x50,
};

static struct resource nuc900_kpi_resource[] = {
      [0] = {
            .start = W90X900_PA_KPI,
            .end   = W90X900_PA_KPI + W90X900_SZ_KPI - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_KPI,
            .end   = IRQ_KPI,
            .flags = IORESOURCE_IRQ,
      }

};

struct platform_device nuc900_device_kpi = {
      .name       = "nuc900-kpi",
      .id         = -1,
      .num_resources    = ARRAY_SIZE(nuc900_kpi_resource),
      .resource   = nuc900_kpi_resource,
      .dev        = {
                        .platform_data = &nuc900_keypad_info,
                  }
};

/* LCD controller*/

static struct nuc900fb_display __initdata nuc900_lcd_info[] = {
      /* Giantplus Technology GPM1040A0 320x240 Color TFT LCD */
      [0] = {
            .type       = LCM_DCCS_VA_SRC_RGB565,
            .width            = 320,
            .height           = 240,
            .xres       = 320,
            .yres       = 240,
            .bpp        = 16,
            .pixclock   = 200000,
            .left_margin      = 34,
            .right_margin   = 54,
            .hsync_len  = 10,
            .upper_margin     = 18,
            .lower_margin     = 4,
            .vsync_len  = 1,
            .dccs       = 0x8e00041a,
            .devctl           = 0x060800c0,
            .fbctrl           = 0x00a000a0,
            .scale            = 0x04000400,
      },
};

static struct nuc900fb_mach_info nuc900_fb_info __initdata = {
#if defined(CONFIG_GPM1040A0_320X240)
      .displays         = &nuc900_lcd_info[0],
#else
      .displays         = nuc900_lcd_info,
#endif
      .num_displays           = ARRAY_SIZE(nuc900_lcd_info),
      .default_display  = 0,
      .gpio_dir         = 0x00000004,
      .gpio_dir_mask          = 0xFFFFFFFD,
      .gpio_data        = 0x00000004,
      .gpio_data_mask         = 0xFFFFFFFD,
};

static struct resource nuc900_lcd_resource[] = {
      [0] = {
            .start = W90X900_PA_LCD,
            .end   = W90X900_PA_LCD + W90X900_SZ_LCD - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_LCD,
            .end   = IRQ_LCD,
            .flags = IORESOURCE_IRQ,
      }
};

static u64 nuc900_device_lcd_dmamask = -1;
struct platform_device nuc900_device_lcd = {
      .name             = "nuc900-lcd",
      .id               = -1,
      .num_resources    = ARRAY_SIZE(nuc900_lcd_resource),
      .resource         = nuc900_lcd_resource,
      .dev              = {
            .dma_mask               = &nuc900_device_lcd_dmamask,
            .coherent_dma_mask      = -1,
            .platform_data = &nuc900_fb_info,
      }
};

/* AUDIO controller*/
static u64 nuc900_device_audio_dmamask = -1;
static struct resource nuc900_ac97_resource[] = {
      [0] = {
            .start = W90X900_PA_ACTL,
            .end   = W90X900_PA_ACTL + W90X900_SZ_ACTL - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = IRQ_ACTL,
            .end   = IRQ_ACTL,
            .flags = IORESOURCE_IRQ,
      }

};

struct platform_device nuc900_device_audio = {
      .name       = "nuc900-audio",
      .id         = -1,
      .num_resources    = ARRAY_SIZE(nuc900_ac97_resource),
      .resource   = nuc900_ac97_resource,
      .dev              = {
            .dma_mask               = &nuc900_device_audio_dmamask,
            .coherent_dma_mask      = -1,
      }
};

/*Here should be your evb resourse,such as LCD*/

static struct platform_device *nuc900_public_dev[] __initdata = {
      &nuc900_serial_device,
      &nuc900_flash_device,
      &nuc900_device_usb_ehci,
      &nuc900_device_usb_ohci,
      &nuc900_device_usbgadget,
      &nuc900_device_emc,
      &nuc900_device_spi,
      &nuc900_device_wdt,
      &nuc900_device_audio,
};

/* Provide adding specific CPU platform devices API */

void __init nuc900_board_init(struct platform_device **device, int size)
{
      platform_add_devices(device, size);
      platform_add_devices(nuc900_public_dev, ARRAY_SIZE(nuc900_public_dev));
      spi_register_board_info(nuc900_spi_board_info,
                              ARRAY_SIZE(nuc900_spi_board_info));
}


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