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/clk.h>
  25 #include <linux/dma-mapping.h>
  26 #include <linux/gpio_keys.h>
  27 #include <linux/pda_power.h>
  28 #include <linux/io.h>
  29 #include <linux/input.h>
  30 #include <linux/i2c.h>
  31 #include <linux/gpio.h>
  32 #include <linux/rfkill-gpio.h>
  33
  34 #include <asm/hardware/gic.h>
  35 #include <asm/mach-types.h>
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/time.h>
  38 #include <asm/setup.h>
  39
  40 #include <mach/iomap.h>
  41 #include <mach/irqs.h>
  42 #include <mach/sdhci.h>
  43
  44 #include "board.h"
  45 #include "board-paz00.h"
  46 #include "clock.h"
  47 #include "devices.h"
  48 #include "gpio-names.h"
  49
  50 static struct plat_serial8250_port debug_uart_platform_data[] = {
  51         {
  52                 /* serial port on JP1 */
  53                 .membase        = IO_ADDRESS(TEGRA_UARTA_BASE),
  54                 .mapbase        = TEGRA_UARTA_BASE,
  55                 .irq            = INT_UARTA,
  56                 .flags          = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE,
  57                 .type           = PORT_TEGRA,
  58                 .iotype         = UPIO_MEM,
  59                 .regshift       = 2,
  60                 .uartclk        = 216000000,
  61         }, {
  62                 /* serial port on mini-pcie */
  63                 .membase        = IO_ADDRESS(TEGRA_UARTC_BASE),
  64                 .mapbase        = TEGRA_UARTC_BASE,
  65                 .irq            = INT_UARTC,
  66                 .flags          = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE,
  67                 .type           = PORT_TEGRA,
  68                 .iotype         = UPIO_MEM,
  69                 .regshift       = 2,
  70                 .uartclk        = 216000000,
  71         }, {
  72                 .flags          = 0
  73         }
  74 };
  75
  76 static struct platform_device debug_uart = {
  77         .name = "serial8250",
  78         .id = PLAT8250_DEV_PLATFORM,
  79         .dev = {
  80                 .platform_data = debug_uart_platform_data,
  81         },
  82 };
  83
  84 static struct rfkill_gpio_platform_data wifi_rfkill_platform_data = {
  85         .name           = "wifi_rfkill",
  86         .reset_gpio     = TEGRA_WIFI_RST,
  87         .shutdown_gpio  = TEGRA_WIFI_PWRN,
  88         .type   = RFKILL_TYPE_WLAN,
  89 };
  90
  91 static struct platform_device wifi_rfkill_device = {
  92         .name   = "rfkill_gpio",
  93         .id     = -1,
  94         .dev    = {
  95                 .platform_data = &wifi_rfkill_platform_data,
  96         },
  97 };
  98
  99 static struct gpio_led gpio_leds[] = {
 100         {
 101                 .name                   = "wifi-led",
 102                 .default_trigger        = "rfkill0",
 103                 .gpio                   = TEGRA_WIFI_LED,
 104         },
 105 };
 106
 107 static struct gpio_led_platform_data gpio_led_info = {
 108         .leds           = gpio_leds,
 109         .num_leds       = ARRAY_SIZE(gpio_leds),
 110 };
 111
 112 static struct platform_device leds_gpio = {
 113         .name   = "leds-gpio",
 114         .id     = -1,
 115         .dev    = {
 116                 .platform_data = &gpio_led_info,
 117         },
 118 };
 119
 120 static struct gpio_keys_button paz00_gpio_keys_buttons[] = {
 121         {
 122                 .code           = KEY_POWER,
 123                 .gpio           = TEGRA_GPIO_POWERKEY,
 124                 .active_low     = 1,
 125                 .desc           = "Power",
 126                 .type           = EV_KEY,
 127                 .wakeup         = 1,
 128         },
 129 };
 130
 131 static struct gpio_keys_platform_data paz00_gpio_keys = {
 132         .buttons        = paz00_gpio_keys_buttons,
 133         .nbuttons       = ARRAY_SIZE(paz00_gpio_keys_buttons),
 134 };
 135
 136 static struct platform_device gpio_keys_device = {
 137         .name   = "gpio-keys",
 138         .id     = -1,
 139         .dev    = {
 140                 .platform_data = &paz00_gpio_keys,
 141         },
 142 };
 143
 144 static struct platform_device *paz00_devices[] __initdata = {
 145         &debug_uart,
 146         &tegra_sdhci_device4,
 147         &tegra_sdhci_device1,
 148         &wifi_rfkill_device,
 149         &leds_gpio,
 150         &gpio_keys_device,
 151 };
 152
 153 static void paz00_i2c_init(void)
 154 {
 155         platform_device_register(&tegra_i2c_device1);
 156         platform_device_register(&tegra_i2c_device2);
 157         platform_device_register(&tegra_i2c_device4);
 158 }
 159
 160 static void paz00_usb_init(void)
 161 {
 162         platform_device_register(&tegra_ehci2_device);
 163         platform_device_register(&tegra_ehci3_device);
 164 }
 165
 166 static void __init tegra_paz00_fixup(struct tag *tags, char **cmdline,
 167         struct meminfo *mi)
 168 {
 169         mi->nr_banks = 1;
 170         mi->bank[0].start = PHYS_OFFSET;
 171         mi->bank[0].size = 448 * SZ_1M;
 172 }
 173
 174 static __initdata struct tegra_clk_init_table paz00_clk_init_table[] = {
 175         /* name         parent          rate            enabled */
 176         { "uarta",      "pll_p",        216000000,      true },
 177         { "uartc",      "pll_p",        216000000,      true },
 178
 179         { "pll_p_out4", "pll_p",        24000000,       true },
 180         { "usbd",       "clk_m",        12000000,       false },
 181         { "usb2",       "clk_m",        12000000,       false },
 182         { "usb3",       "clk_m",        12000000,       false },
 183
 184         { NULL,         NULL,           0,              0},
 185 };
 186
 187 static struct tegra_sdhci_platform_data sdhci_pdata1 = {
 188         .cd_gpio        = TEGRA_GPIO_SD1_CD,
 189         .wp_gpio        = TEGRA_GPIO_SD1_WP,
 190         .power_gpio     = TEGRA_GPIO_SD1_POWER,
 191 };
 192
 193 static struct tegra_sdhci_platform_data sdhci_pdata4 = {
 194         .cd_gpio        = -1,
 195         .wp_gpio        = -1,
 196         .power_gpio     = -1,
 197         .is_8bit        = 1,
 198 };
 199
 200 static void __init tegra_paz00_init(void)
 201 {
 202         tegra_clk_init_from_table(paz00_clk_init_table);
 203
 204         paz00_pinmux_init();
 205
 206         tegra_sdhci_device1.dev.platform_data = &sdhci_pdata1;
 207         tegra_sdhci_device4.dev.platform_data = &sdhci_pdata4;
 208
 209         platform_add_devices(paz00_devices, ARRAY_SIZE(paz00_devices));
 210
 211         paz00_i2c_init();
 212         paz00_usb_init();
 213 }
 214
 215 MACHINE_START(PAZ00, "Toshiba AC100 / Dynabook AZ")
 216         .atag_offset    = 0x100,
 217         .fixup          = tegra_paz00_fixup,
 218         .map_io         = tegra_map_common_io,
 219         .init_early     = tegra20_init_early,
 220         .init_irq       = tegra_init_irq,
 221         .handle_irq     = gic_handle_irq,
 222         .timer          = &tegra_timer,
 223         .init_machine   = tegra_paz00_init,
 224         .restart        = tegra_assert_system_reset,
 225 MACHINE_END