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board-innovator.c

/*
 * 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/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/input.h>

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

#include <asm/arch/mux.h>
#include <asm/arch/fpga.h>
#include <asm/arch/gpio.h>
#include <asm/arch/tc.h>
#include <asm/arch/usb.h>
#include <asm/arch/keypad.h>
#include <asm/arch/common.h>
#include <asm/arch/mcbsp.h>
#include <asm/arch/omap-alsa.h>

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

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 flash_platform_data innovator_flash_data = {
      .map_name   = "cfi_probe",
      .width            = 2,
      .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       = "omapflash",
      .id         = 0,
      .dev        = {
            .platform_data    = &innovator_flash_data,
      },
      .num_resources    = 1,
      .resource   = &innovator_flash_resource,
};

#define DEFAULT_BITPERSAMPLE 16

static struct omap_mcbsp_reg_cfg mcbsp_regs = {
      .spcr2 = FREE | FRST | GRST | XRST | XINTM(3),
      .spcr1 = RINTM(3) | RRST,
      .rcr2 = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) |
          RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(0),
      .rcr1 = RFRLEN1(OMAP_MCBSP_WORD_8) | RWDLEN1(OMAP_MCBSP_WORD_16),
      .xcr2 = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) |
          XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(0) | XFIG,
      .xcr1 = XFRLEN1(OMAP_MCBSP_WORD_8) | XWDLEN1(OMAP_MCBSP_WORD_16),
      .srgr1 = FWID(DEFAULT_BITPERSAMPLE - 1),
      .srgr2 = GSYNC | CLKSP | FSGM | FPER(DEFAULT_BITPERSAMPLE * 2 - 1),
      /*.pcr0 = FSXM | FSRM | CLKXM | CLKRM | CLKXP | CLKRP,*/ /* mcbsp: master */
      .pcr0 = CLKXP | CLKRP,  /* mcbsp: slave */
};

static struct omap_alsa_codec_config alsa_config = {
      .name             = "OMAP Innovator AIC23",
      .mcbsp_regs_alsa  = &mcbsp_regs,
      .codec_configure_dev    = NULL, // aic23_configure,
      .codec_set_samplerate   = NULL, // aic23_set_samplerate,
      .codec_clock_setup      = NULL, // aic23_clock_setup,
      .codec_clock_on         = NULL, // aic23_clock_on,
      .codec_clock_off  = NULL, // aic23_clock_off,
      .get_default_samplerate = NULL, // aic23_get_default_samplerate,
};

static struct platform_device innovator_mcbsp1_device = {
      .name = "omap_alsa_mcbsp",
      .id   = 1,
      .dev = {
            .platform_data    = &alsa_config,
      },
};

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

static struct omap_kp_platform_data innovator_kp_data = {
      .rows = 8,
      .cols = 8,
      .keymap = innovator_keymap,
};

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,
};


#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,
      },
};

static struct platform_device innovator1510_smc91x_device = {
      .name       = "smc91x",
      .id         = 0,
      .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_mcbsp1_device,
      &innovator_kp_device,
      &innovator1510_lcd_device,
      &innovator1510_spi_device,
};

static int innovator_get_pendown_state(void)
{
      return !(fpga_read(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] = {
            .start      = OMAP_GPIO_IRQ(0),
            .end  = OMAP_GPIO_IRQ(0),
            .flags      = IORESOURCE_IRQ,
      },
};

static struct platform_device innovator1610_smc91x_device = {
      .name       = "smc91x",
      .id         = 0,
      .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()) {
            fpga_write(fpga_read(OMAP1510_FPGA_RST) & ~1,
                     OMAP1510_FPGA_RST);
            udelay(750);
      } else {
            if ((omap_request_gpio(0)) < 0) {
                  printk("Error requesting gpio 0 for smc91x irq\n");
                  return;
            }
      }
}

void innovator_init_irq(void)
{
      omap1_init_common_hw();
      omap_init_irq();
      omap_gpio_init();
#ifdef CONFIG_ARCH_OMAP15XX
      if (cpu_is_omap1510()) {
            omap1510_fpga_init_irq();
      }
#endif
      innovator_init_smc91x();
}

#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

static struct omap_mmc_config innovator_mmc_config __initdata = {
      .mmc [0] = {
            .enabled    = 1,
            .wire4            = 1,
            .wp_pin           = OMAP_MPUIO(3),
            .power_pin  = -1, /* FPGA F3 UIO42 */
            .switch_pin = -1, /* FPGA F4 UIO43 */
      },
};

static struct omap_uart_config innovator_uart_config __initdata = {
      .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
};

static struct omap_board_config_kernel innovator_config[] = {
      { OMAP_TAG_USB,         NULL },
      { OMAP_TAG_LCD,         NULL },
      { OMAP_TAG_MMC,         &innovator_mmc_config },
      { OMAP_TAG_UART,  &innovator_uart_config },
};

static void __init innovator_init(void)
{
#ifdef CONFIG_ARCH_OMAP15XX
      if (cpu_is_omap1510()) {
            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()) {
            platform_add_devices(innovator1610_devices, ARRAY_SIZE(innovator1610_devices));
      }
#endif

#ifdef CONFIG_ARCH_OMAP15XX
      if (cpu_is_omap1510()) {
            innovator_config[0].data = &innovator1510_usb_config;
            innovator_config[1].data = &innovator1510_lcd_config;
      }
#endif
#ifdef CONFIG_ARCH_OMAP16XX
      if (cpu_is_omap1610()) {
            innovator_config[0].data = &h2_usb_config;
            innovator_config[1].data = &innovator1610_lcd_config;
      }
#endif
      omap_board_config = innovator_config;
      omap_board_config_size = ARRAY_SIZE(innovator_config);
      omap_serial_init();
}

static void __init innovator_map_io(void)
{
      omap1_map_common_io();

#ifdef CONFIG_ARCH_OMAP15XX
      if (cpu_is_omap1510()) {
            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. */
            printk("Innovator FPGA Rev %d.%d Board Rev %d\n",
                   fpga_read(OMAP1510_FPGA_REV_HIGH),
                   fpga_read(OMAP1510_FPGA_REV_LOW),
                   fpga_read(OMAP1510_FPGA_BOARD_REV));
      }
#endif
}

MACHINE_START(OMAP_INNOVATOR, "TI-Innovator")
      /* Maintainer: MontaVista Software, Inc. */
      .phys_io    = 0xfff00000,
      .io_pg_offst      = ((0xfef00000) >> 18) & 0xfffc,
      .boot_params      = 0x10000100,
      .map_io           = innovator_map_io,
      .init_irq   = innovator_init_irq,
      .init_machine     = innovator_init,
      .timer            = &omap_timer,
MACHINE_END

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