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 &leds_gpio, 152 &gpio_keys_device, 153 }; 154 155 static void paz00_i2c_init(void) 156 { 157 platform_device_register(&tegra_i2c_device1); 158 platform_device_register(&tegra_i2c_device2); 159 platform_device_register(&tegra_i2c_device4); 160 } 161 162 static void paz00_usb_init(void) 163 { 164 tegra_ehci2_ulpi_phy_config.reset_gpio = TEGRA_ULPI_RST; 165 166 platform_device_register(&tegra_ehci2_device); 167 platform_device_register(&tegra_ehci3_device); 168 } 169 170 static void __init tegra_paz00_fixup(struct tag *tags, char **cmdline, 171 struct meminfo *mi) 172 { 173 mi->nr_banks = 1; 174 mi->bank[0].start = PHYS_OFFSET; 175 mi->bank[0].size = 448 * SZ_1M; 176 } 177 178 static __initdata struct tegra_clk_init_table paz00_clk_init_table[] = { 179 /* name parent rate enabled */ 180 { "uarta", "pll_p", 216000000, true }, 181 { "uartc", "pll_p", 216000000, true }, 182 183 { "usbd", "clk_m", 12000000, false }, 184 { "usb2", "clk_m", 12000000, false }, 185 { "usb3", "clk_m", 12000000, false }, 186 187 { NULL, NULL, 0, 0}, 188 }; 189 190 static struct tegra_sdhci_platform_data sdhci_pdata1 = { 191 .cd_gpio = TEGRA_GPIO_SD1_CD, 192 .wp_gpio = TEGRA_GPIO_SD1_WP, 193 .power_gpio = TEGRA_GPIO_SD1_POWER, 194 }; 195 196 static struct tegra_sdhci_platform_data sdhci_pdata4 = { 197 .cd_gpio = -1, 198 .wp_gpio = -1, 199 .power_gpio = -1, 200 .is_8bit = 1, 201 }; 202 203 void __init tegra_paz00_wifikill_init(void) 204 { 205 platform_device_register(&wifi_rfkill_device); 206 } 207 208 static void __init tegra_paz00_init(void) 209 { 210 tegra_clk_init_from_table(paz00_clk_init_table); 211 212 paz00_pinmux_init(); 213 214 tegra_sdhci_device1.dev.platform_data = &sdhci_pdata1; 215 tegra_sdhci_device4.dev.platform_data = &sdhci_pdata4; 216 217 platform_add_devices(paz00_devices, ARRAY_SIZE(paz00_devices)); 218 tegra_paz00_wifikill_init(); 219 220 paz00_i2c_init(); 221 paz00_usb_init(); 222 } 223 224 MACHINE_START(PAZ00, "Toshiba AC100 / Dynabook AZ") 225 .atag_offset = 0x100, 226 .fixup = tegra_paz00_fixup, 227 .map_io = tegra_map_common_io, 228 .init_early = tegra20_init_early, 229 .init_irq = tegra_init_irq, 230 .handle_irq = gic_handle_irq, 231 .timer = &tegra_timer, 232 .init_machine = tegra_paz00_init, 233 .init_late = tegra_init_late, 234 .restart = tegra_assert_system_reset, 235 MACHINE_END 236