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