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ts409-setup.c

/*
 * QNAP TS-409 Board Setup
 *
 * Maintainer: Sylver Bruneau <sylver.bruneau@gmail.com>
 *
 * Copyright (C) 2008  Sylver Bruneau <sylver.bruneau@gmail.com>
 * Copyright (C) 2008  Martin Michlmayr <tbm@cyrius.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; either version
 * 2 of the License, or (at your option) any later version.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
#include <linux/irq.h>
#include <linux/mtd/physmap.h>
#include <linux/mv643xx_eth.h>
#include <linux/leds.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/i2c.h>
#include <linux/serial_reg.h>
#include <asm/mach-types.h>
#include <asm/gpio.h>
#include <asm/mach/arch.h>
#include <asm/mach/pci.h>
#include <mach/orion5x.h>
#include "common.h"
#include "mpp.h"
#include "tsx09-common.h"

/*****************************************************************************
 * QNAP TS-409 Info
 ****************************************************************************/

/*
 * QNAP TS-409 hardware :
 * - Marvell 88F5281-D0
 * - Marvell 88SX7042 SATA controller (PCIe)
 * - Marvell 88E1118 Gigabit Ethernet PHY
 * - RTC S35390A (@0x30) on I2C bus
 * - 8MB NOR flash
 * - 256MB of DDR-2 RAM
 */

/*
 * 8MB NOR flash Device bus boot chip select
 */

#define QNAP_TS409_NOR_BOOT_BASE 0xff800000
#define QNAP_TS409_NOR_BOOT_SIZE SZ_8M

/****************************************************************************
 * 8MiB NOR flash. The struct mtd_partition is not in the same order as the
 *     partitions on the device because we want to keep compatability with
 *     existing QNAP firmware.
 *
 * Layout as used by QNAP:
 *  [2] 0x00000000-0x00200000 : "Kernel"
 *  [3] 0x00200000-0x00600000 : "RootFS1"
 *  [4] 0x00600000-0x00700000 : "RootFS2"
 *  [6] 0x00700000-0x00760000 : "NAS Config" (read-only)
 *  [5] 0x00760000-0x00780000 : "U-Boot Config"
 *  [1] 0x00780000-0x00800000 : "U-Boot" (read-only)
 ***************************************************************************/
static struct mtd_partition qnap_ts409_partitions[] = {
      {
            .name       = "U-Boot",
            .size       = 0x00080000,
            .offset           = 0x00780000,
            .mask_flags = MTD_WRITEABLE,
      }, {
            .name       = "Kernel",
            .size       = 0x00200000,
            .offset           = 0,
      }, {
            .name       = "RootFS1",
            .size       = 0x00400000,
            .offset           = 0x00200000,
      }, {
            .name       = "RootFS2",
            .size       = 0x00100000,
            .offset           = 0x00600000,
      }, {
            .name       = "U-Boot Config",
            .size       = 0x00020000,
            .offset           = 0x00760000,
      }, {
            .name       = "NAS Config",
            .size       = 0x00060000,
            .offset           = 0x00700000,
            .mask_flags = MTD_WRITEABLE,
      },
};

static struct physmap_flash_data qnap_ts409_nor_flash_data = {
      .width            = 1,
      .parts            = qnap_ts409_partitions,
      .nr_parts   = ARRAY_SIZE(qnap_ts409_partitions)
};

static struct resource qnap_ts409_nor_flash_resource = {
      .flags      = IORESOURCE_MEM,
      .start      = QNAP_TS409_NOR_BOOT_BASE,
      .end  = QNAP_TS409_NOR_BOOT_BASE + QNAP_TS409_NOR_BOOT_SIZE - 1,
};

static struct platform_device qnap_ts409_nor_flash = {
      .name       = "physmap-flash",
      .id         = 0,
      .dev        = { .platform_data = &qnap_ts409_nor_flash_data, },
      .num_resources    = 1,
      .resource   = &qnap_ts409_nor_flash_resource,
};

/*****************************************************************************
 * PCI
 ****************************************************************************/

static int __init qnap_ts409_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
      int irq;

      /*
       * Check for devices with hard-wired IRQs.
       */
      irq = orion5x_pci_map_irq(dev, slot, pin);
      if (irq != -1)
            return irq;

      /*
       * PCI isn't used on the TS-409
       */
      return -1;
}

static struct hw_pci qnap_ts409_pci __initdata = {
      .nr_controllers   = 2,
      .swizzle    = pci_std_swizzle,
      .setup            = orion5x_pci_sys_setup,
      .scan       = orion5x_pci_sys_scan_bus,
      .map_irq    = qnap_ts409_pci_map_irq,
};

static int __init qnap_ts409_pci_init(void)
{
      if (machine_is_ts409())
            pci_common_init(&qnap_ts409_pci);

      return 0;
}

subsys_initcall(qnap_ts409_pci_init);

/*****************************************************************************
 * RTC S35390A on I2C bus
 ****************************************************************************/

#define TS409_RTC_GPIO  10

static struct i2c_board_info __initdata qnap_ts409_i2c_rtc = {
      I2C_BOARD_INFO("s35390a", 0x30),
};

/*****************************************************************************
 * LEDs attached to GPIO
 ****************************************************************************/

static struct gpio_led ts409_led_pins[] = {
      {
            .name       = "ts409:red:sata1",
            .gpio       = 4,
            .active_low = 1,
      }, {
            .name       = "ts409:red:sata2",
            .gpio       = 5,
            .active_low = 1,
      }, {
            .name       = "ts409:red:sata3",
            .gpio       = 6,
            .active_low = 1,
      }, {
            .name       = "ts409:red:sata4",
            .gpio       = 7,
            .active_low = 1,
      },
};

static struct gpio_led_platform_data ts409_led_data = {
      .leds       = ts409_led_pins,
      .num_leds   = ARRAY_SIZE(ts409_led_pins),
};

static struct platform_device ts409_leds = {
      .name = "leds-gpio",
      .id   = -1,
      .dev  = {
            .platform_data    = &ts409_led_data,
      },
};

/****************************************************************************
 * GPIO Attached Keys
 *     Power button is attached to the PIC microcontroller
 ****************************************************************************/

#define QNAP_TS409_GPIO_KEY_RESET   14
#define QNAP_TS409_GPIO_KEY_MEDIA   15

static struct gpio_keys_button qnap_ts409_buttons[] = {
      {
            .code       = KEY_RESTART,
            .gpio       = QNAP_TS409_GPIO_KEY_RESET,
            .desc       = "Reset Button",
            .active_low = 1,
      }, {
            .code       = KEY_COPY,
            .gpio       = QNAP_TS409_GPIO_KEY_MEDIA,
            .desc       = "USB Copy Button",
            .active_low = 1,
      },
};

static struct gpio_keys_platform_data qnap_ts409_button_data = {
      .buttons    = qnap_ts409_buttons,
      .nbuttons   = ARRAY_SIZE(qnap_ts409_buttons),
};

static struct platform_device qnap_ts409_button_device = {
      .name       = "gpio-keys",
      .id         = -1,
      .num_resources    = 0,
      .dev        = {
            .platform_data    = &qnap_ts409_button_data,
      },
};

/*****************************************************************************
 * General Setup
 ****************************************************************************/
static struct orion5x_mpp_mode ts409_mpp_modes[] __initdata = {
      {  0, MPP_UNUSED },
      {  1, MPP_UNUSED },
      {  2, MPP_UNUSED },
      {  3, MPP_UNUSED },
      {  4, MPP_GPIO },       /* HDD 1 status */
      {  5, MPP_GPIO },       /* HDD 2 status */
      {  6, MPP_GPIO },       /* HDD 3 status */
      {  7, MPP_GPIO },       /* HDD 4 status */
      {  8, MPP_UNUSED },
      {  9, MPP_UNUSED },
      { 10, MPP_GPIO },       /* RTC int */
      { 11, MPP_UNUSED },
      { 12, MPP_UNUSED },
      { 13, MPP_UNUSED },
      { 14, MPP_GPIO },       /* SW_RST */
      { 15, MPP_GPIO },       /* USB copy button */
      { 16, MPP_UART },       /* UART1 RXD */
      { 17, MPP_UART },       /* UART1 TXD */
      { 18, MPP_UNUSED },
      { 19, MPP_UNUSED },
      { -1 },
};

static void __init qnap_ts409_init(void)
{
      /*
       * Setup basic Orion functions. Need to be called early.
       */
      orion5x_init();

      orion5x_mpp_conf(ts409_mpp_modes);

      /*
       * Configure peripherals.
       */
      orion5x_setup_dev_boot_win(QNAP_TS409_NOR_BOOT_BASE,
                           QNAP_TS409_NOR_BOOT_SIZE);
      platform_device_register(&qnap_ts409_nor_flash);

      orion5x_ehci0_init();
      qnap_tsx09_find_mac_addr(QNAP_TS409_NOR_BOOT_BASE +
                         qnap_ts409_partitions[5].offset,
                         qnap_ts409_partitions[5].size);
      orion5x_eth_init(&qnap_tsx09_eth_data);
      orion5x_i2c_init();
      orion5x_uart0_init();
      orion5x_uart1_init();

      platform_device_register(&qnap_ts409_button_device);

      /* Get RTC IRQ and register the chip */
      if (gpio_request(TS409_RTC_GPIO, "rtc") == 0) {
            if (gpio_direction_input(TS409_RTC_GPIO) == 0)
                  qnap_ts409_i2c_rtc.irq = gpio_to_irq(TS409_RTC_GPIO);
            else
                  gpio_free(TS409_RTC_GPIO);
      }
      if (qnap_ts409_i2c_rtc.irq == 0)
            pr_warning("qnap_ts409_init: failed to get RTC IRQ\n");
      i2c_register_board_info(0, &qnap_ts409_i2c_rtc, 1);
      platform_device_register(&ts409_leds);

      /* register tsx09 specific power-off method */
      pm_power_off = qnap_tsx09_power_off;
}

MACHINE_START(TS409, "QNAP TS-409")
      /* Maintainer:  Sylver Bruneau <sylver.bruneau@gmail.com> */
      .phys_io    = ORION5X_REGS_PHYS_BASE,
      .io_pg_offst      = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
      .boot_params      = 0x00000100,
      .init_machine     = qnap_ts409_init,
      .map_io           = orion5x_map_io,
      .init_irq   = orion5x_init_irq,
      .timer            = &orion5x_timer,
      .fixup            = tag_fixup_mem32,
MACHINE_END

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