arch/arm/mach-tegra/board-paz00.c

   1 /*
   2  * arch/arm/mach-tegra/board-paz00.c
   3  *
   4  * Copyright (C) 2011 Marc Dietrich <marvin24@gmx.de>
   5  *
   6  * Based on board-harmony.c
   7  * Copyright (C) 2010 Google, Inc.
   8  *
   9  * This software is licensed under the terms of the GNU General Public
  10  * License version 2, as published by the Free Software Foundation, and
  11  * may be copied, distributed, and modified under those terms.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  */
  19
  20 #include <linux/kernel.h>
  21 #include <linux/init.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/serial_8250.h>
  24 #include <linux/of_serial.h>
  25 #include <linux/clk.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/gpio_keys.h>
  28 #include <linux/pda_power.h>
  29 #include <linux/io.h>
  30 #include <linux/input.h>
  31 #include <linux/i2c.h>
  32 #include <linux/gpio.h>
  33 #include <linux/rfkill-gpio.h>
  34
  35 #include <asm/hardware/gic.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/time.h>
  39 #include <asm/setup.h>
  40
  41 #include <mach/iomap.h>
  42 #include <mach/irqs.h>
  43 #include <mach/sdhci.h>
  44
  45 #include "board.h"
  46 #include "board-paz00.h"
  47 #include "clock.h"
  48 #include "devices.h"
  49 #include "gpio-names.h"
  50
  51 static struct plat_serial8250_port debug_uart_platform_data[] = {
  52         {
  53                 /* serial port on JP1 */
  54                 .membase        = IO_ADDRESS(TEGRA_UARTA_BASE),
  55                 .mapbase        = TEGRA_UARTA_BASE,
  56                 .irq            = INT_UARTA,
  57                 .flags          = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE,
  58                 .type           = PORT_TEGRA,
  59                 .handle_break   = tegra_serial_handle_break,
  60                 .iotype         = UPIO_MEM,
  61                 .regshift       = 2,
  62                 .uartclk        = 216000000,
  63         }, {
  64                 /* serial port on mini-pcie */
  65                 .membase        = IO_ADDRESS(TEGRA_UARTC_BASE),
  66                 .mapbase        = TEGRA_UARTC_BASE,
  67                 .irq            = INT_UARTC,
  68                 .flags          = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE,
  69                 .type           = PORT_TEGRA,
  70                 .handle_break   = tegra_serial_handle_break,
  71                 .iotype         = UPIO_MEM,
  72                 .regshift       = 2,
  73                 .uartclk        = 216000000,
  74         }, {
  75                 .flags          = 0
  76         }
  77 };
  78
  79 static struct platform_device debug_uart = {
  80         .name = "serial8250",
  81         .id = PLAT8250_DEV_PLATFORM,
  82         .dev = {
  83                 .platform_data = debug_uart_platform_data,
  84         },
  85 };
  86
  87 static struct rfkill_gpio_platform_data wifi_rfkill_platform_data = {
  88         .name           = "wifi_rfkill",
  89         .reset_gpio     = TEGRA_WIFI_RST,
  90         .shutdown_gpio  = TEGRA_WIFI_PWRN,
  91         .type   = RFKILL_TYPE_WLAN,
  92 };
  93
  94 static struct platform_device wifi_rfkill_device = {
  95         .name   = "rfkill_gpio",
  96         .id     = -1,
  97         .dev    = {
  98                 .platform_data = &wifi_rfkill_platform_data,
  99         },
 100 };
 101
 102 static struct gpio_led gpio_leds[] = {
 103         {
 104                 .name                   = "wifi-led",
 105                 .default_trigger        = "rfkill0",
 106                 .gpio                   = TEGRA_WIFI_LED,
 107         },
 108 };
 109
 110 static struct gpio_led_platform_data gpio_led_info = {
 111         .leds           = gpio_leds,
 112         .num_leds       = ARRAY_SIZE(gpio_leds),
 113 };
 114
 115 static struct platform_device leds_gpio = {
 116         .name   = "leds-gpio",
 117         .id     = -1,
 118         .dev    = {
 119                 .platform_data = &gpio_led_info,
 120         },
 121 };
 122
 123 static struct gpio_keys_button paz00_gpio_keys_buttons[] = {
 124         {
 125                 .code           = KEY_POWER,
 126                 .gpio           = TEGRA_GPIO_POWERKEY,
 127                 .active_low     = 1,
 128                 .desc           = "Power",
 129                 .type           = EV_KEY,
 130                 .wakeup         = 1,
 131         },
 132 };
 133
 134 static struct gpio_keys_platform_data paz00_gpio_keys = {
 135         .buttons        = paz00_gpio_keys_buttons,
 136         .nbuttons       = ARRAY_SIZE(paz00_gpio_keys_buttons),
 137 };
 138
 139 static struct platform_device gpio_keys_device = {
 140         .name   = "gpio-keys",
 141         .id     = -1,
 142         .dev    = {
 143                 .platform_data = &paz00_gpio_keys,
 144         },
 145 };
 146
 147 static struct platform_device *paz00_devices[] __initdata = {
 148         &debug_uart,
 149         &tegra_sdhci_device4,
 150         &tegra_sdhci_device1,
 151         &wifi_rfkill_device,
 152         &leds_gpio,
 153         &gpio_keys_device,
 154 };
 155
 156 static void paz00_i2c_init(void)
 157 {
 158         platform_device_register(&tegra_i2c_device1);
 159         platform_device_register(&tegra_i2c_device2);
 160         platform_device_register(&tegra_i2c_device4);
 161 }
 162
 163 static void paz00_usb_init(void)
 164 {
 165         tegra_ehci2_ulpi_phy_config.reset_gpio = TEGRA_ULPI_RST;
 166
 167         platform_device_register(&tegra_ehci2_device);
 168         platform_device_register(&tegra_ehci3_device);
 169 }
 170
 171 static void __init tegra_paz00_fixup(struct tag *tags, char **cmdline,
 172         struct meminfo *mi)
 173 {
 174         mi->nr_banks = 1;
 175         mi->bank[0].start = PHYS_OFFSET;
 176         mi->bank[0].size = 448 * SZ_1M;
 177 }
 178
 179 static __initdata struct tegra_clk_init_table paz00_clk_init_table[] = {
 180         /* name         parent          rate            enabled */
 181         { "uarta",      "pll_p",        216000000,      true },
 182         { "uartc",      "pll_p",        216000000,      true },
 183
 184         { "usbd",       "clk_m",        12000000,       false },
 185         { "usb2",       "clk_m",        12000000,       false },
 186         { "usb3",       "clk_m",        12000000,       false },
 187
 188         { NULL,         NULL,           0,              0},
 189 };
 190
 191 static struct tegra_sdhci_platform_data sdhci_pdata1 = {
 192         .cd_gpio        = TEGRA_GPIO_SD1_CD,
 193         .wp_gpio        = TEGRA_GPIO_SD1_WP,
 194         .power_gpio     = TEGRA_GPIO_SD1_POWER,
 195 };
 196
 197 static struct tegra_sdhci_platform_data sdhci_pdata4 = {
 198         .cd_gpio        = -1,
 199         .wp_gpio        = -1,
 200         .power_gpio     = -1,
 201         .is_8bit        = 1,
 202 };
 203
 204 static void __init tegra_paz00_init(void)
 205 {
 206         tegra_clk_init_from_table(paz00_clk_init_table);
 207
 208         paz00_pinmux_init();
 209
 210         tegra_sdhci_device1.dev.platform_data = &sdhci_pdata1;
 211         tegra_sdhci_device4.dev.platform_data = &sdhci_pdata4;
 212
 213         platform_add_devices(paz00_devices, ARRAY_SIZE(paz00_devices));
 214
 215         paz00_i2c_init();
 216         paz00_usb_init();
 217 }
 218
 219 MACHINE_START(PAZ00, "Toshiba AC100 / Dynabook AZ")
 220         .atag_offset    = 0x100,
 221         .fixup          = tegra_paz00_fixup,
 222         .map_io         = tegra_map_common_io,
 223         .init_early     = tegra20_init_early,
 224         .init_irq       = tegra_init_irq,
 225         .handle_irq     = gic_handle_irq,
 226         .timer          = &tegra_timer,
 227         .init_machine   = tegra_paz00_init,
 228         .init_late      = tegra_init_late,
 229         .restart        = tegra_assert_system_reset,
 230 MACHINE_END