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_UARTD_BASE), 64 .mapbase = TEGRA_UARTD_BASE, 65 .irq = INT_UARTD, 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 { "uartd", "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 226