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ts219-setup.c

/*
 *
 * QNAP TS-119/TS-219 Turbo NAS Board Setup
 *
 * Copyright (C) 2009  Martin Michlmayr <tbm@cyrius.com>
 * Copyright (C) 2008  Byron Bradley <byron.bbradley@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; 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/mtd/physmap.h>
#include <linux/spi/flash.h>
#include <linux/spi/spi.h>
#include <linux/spi/orion_spi.h>
#include <linux/i2c.h>
#include <linux/mv643xx_eth.h>
#include <linux/ata_platform.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/timex.h>
#include <linux/serial_reg.h>
#include <linux/pci.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/kirkwood.h>
#include "common.h"
#include "mpp.h"

/****************************************************************************
 * 16 MiB 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
 *     the QNAP firmware.
 * Layout as used by QNAP:
 *  0x00000000-0x00080000 : "U-Boot"
 *  0x00200000-0x00400000 : "Kernel"
 *  0x00400000-0x00d00000 : "RootFS"
 *  0x00d00000-0x01000000 : "RootFS2"
 *  0x00080000-0x000c0000 : "U-Boot Config"
 *  0x000c0000-0x00200000 : "NAS Config"
 *
 * We'll use "RootFS1" instead of "RootFS" to stay compatible with the layout
 * used by the QNAP TS-109/TS-209.
 *
 ***************************************************************************/

static struct mtd_partition qnap_ts219_partitions[] = {
      {
            .name       = "U-Boot",
            .size       = 0x00080000,
            .offset           = 0,
            .mask_flags = MTD_WRITEABLE,
      }, {
            .name       = "Kernel",
            .size       = 0x00200000,
            .offset           = 0x00200000,
      }, {
            .name       = "RootFS1",
            .size       = 0x00900000,
            .offset           = 0x00400000,
      }, {
            .name       = "RootFS2",
            .size       = 0x00300000,
            .offset           = 0x00d00000,
      }, {
            .name       = "U-Boot Config",
            .size       = 0x00040000,
            .offset           = 0x00080000,
      }, {
            .name       = "NAS Config",
            .size       = 0x00140000,
            .offset           = 0x000c0000,
      },
};

static const struct flash_platform_data qnap_ts219_flash = {
      .type       = "m25p128",
      .name       = "spi_flash",
      .parts            = qnap_ts219_partitions,
      .nr_parts   = ARRAY_SIZE(qnap_ts219_partitions),
};

static struct spi_board_info __initdata qnap_ts219_spi_slave_info[] = {
      {
            .modalias   = "m25p80",
            .platform_data    = &qnap_ts219_flash,
            .irq        = -1,
            .max_speed_hz     = 20000000,
            .bus_num    = 0,
            .chip_select      = 0,
      },
};

static struct i2c_board_info __initdata qnap_ts219_i2c_rtc = {
      I2C_BOARD_INFO("s35390a", 0x30),
};

static struct mv643xx_eth_platform_data qnap_ts219_ge00_data = {
      .phy_addr   = MV643XX_ETH_PHY_ADDR(8),
};

static struct mv_sata_platform_data qnap_ts219_sata_data = {
      .n_ports    = 2,
};

static struct gpio_keys_button qnap_ts219_buttons[] = {
      {
            .code       = KEY_COPY,
            .gpio       = 15,
            .desc       = "USB Copy",
            .active_low = 1,
      },
      {
            .code       = KEY_RESTART,
            .gpio       = 16,
            .desc       = "Reset",
            .active_low = 1,
      },
};

static struct gpio_keys_platform_data qnap_ts219_button_data = {
      .buttons    = qnap_ts219_buttons,
      .nbuttons   = ARRAY_SIZE(qnap_ts219_buttons),
};

static struct platform_device qnap_ts219_button_device = {
      .name       = "gpio-keys",
      .id         = -1,
      .num_resources    = 0,
      .dev        = {
            .platform_data    = &qnap_ts219_button_data,
      }
};

static unsigned int qnap_ts219_mpp_config[] __initdata = {
      MPP0_SPI_SCn,
      MPP1_SPI_MOSI,
      MPP2_SPI_SCK,
      MPP3_SPI_MISO,
      MPP4_SATA1_ACTn,
      MPP5_SATA0_ACTn,
      MPP8_TW_SDA,
      MPP9_TW_SCK,
      MPP10_UART0_TXD,
      MPP11_UART0_RXD,
      MPP13_UART1_TXD,  /* PIC controller */
      MPP14_UART1_RXD,  /* PIC controller */
      MPP15_GPIO,       /* USB Copy button */
      MPP16_GPIO,       /* Reset button */
      0
};


/*****************************************************************************
 * QNAP TS-x19 specific power off method via UART1-attached PIC
 ****************************************************************************/

#define UART1_REG(x)    (UART1_VIRT_BASE + ((UART_##x) << 2))

void qnap_ts219_power_off(void)
{
      /* 19200 baud divisor */
      const unsigned divisor = ((kirkwood_tclk + (8 * 19200)) / (16 * 19200));

      pr_info("%s: triggering power-off...\n", __func__);

      /* hijack UART1 and reset into sane state (19200,8n1) */
      writel(0x83, UART1_REG(LCR));
      writel(divisor & 0xff, UART1_REG(DLL));
      writel((divisor >> 8) & 0xff, UART1_REG(DLM));
      writel(0x03, UART1_REG(LCR));
      writel(0x00, UART1_REG(IER));
      writel(0x00, UART1_REG(FCR));
      writel(0x00, UART1_REG(MCR));

      /* send the power-off command 'A' to PIC */
      writel('A', UART1_REG(TX));
}

static void __init qnap_ts219_init(void)
{
      /*
       * Basic setup. Needs to be called early.
       */
      kirkwood_init();
      kirkwood_mpp_conf(qnap_ts219_mpp_config);

      kirkwood_uart0_init();
      kirkwood_uart1_init(); /* A PIC controller is connected here. */
      spi_register_board_info(qnap_ts219_spi_slave_info,
                        ARRAY_SIZE(qnap_ts219_spi_slave_info));
      kirkwood_spi_init();
      kirkwood_i2c_init();
      i2c_register_board_info(0, &qnap_ts219_i2c_rtc, 1);
      kirkwood_ge00_init(&qnap_ts219_ge00_data);
      kirkwood_sata_init(&qnap_ts219_sata_data);
      kirkwood_ehci_init();
      platform_device_register(&qnap_ts219_button_device);

      pm_power_off = qnap_ts219_power_off;

}

static int __init ts219_pci_init(void)
{
   if (machine_is_ts219())
           kirkwood_pcie_init();

   return 0;
}
subsys_initcall(ts219_pci_init);

MACHINE_START(TS219, "QNAP TS-119/TS-219")
      /* Maintainer: Martin Michlmayr <tbm@cyrius.com> */
      .phys_io    = KIRKWOOD_REGS_PHYS_BASE,
      .io_pg_offst      = ((KIRKWOOD_REGS_VIRT_BASE) >> 18) & 0xfffc,
      .boot_params      = 0x00000100,
      .init_machine     = qnap_ts219_init,
      .map_io           = kirkwood_map_io,
      .init_irq   = kirkwood_init_irq,
      .timer            = &kirkwood_timer,
MACHINE_END

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