Marek Vasut | 54088bf | 2009-03-24 00:29:29 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * Hardware definitions for Palm Tungsten|E2 |
| 3 | * |
| 4 | * Author: |
| 5 | * Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com> |
| 6 | * |
| 7 | * Rewrite for mainline: |
| 8 | * Marek Vasut <marek.vasut@gmail.com> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License version 2 as |
| 12 | * published by the Free Software Foundation. |
| 13 | * |
| 14 | * (find more info at www.hackndev.com) |
| 15 | * |
| 16 | */ |
| 17 | |
| 18 | #include <linux/platform_device.h> |
| 19 | #include <linux/delay.h> |
| 20 | #include <linux/irq.h> |
| 21 | #include <linux/gpio_keys.h> |
| 22 | #include <linux/input.h> |
| 23 | #include <linux/pwm_backlight.h> |
| 24 | #include <linux/gpio.h> |
| 25 | |
| 26 | #include <asm/mach-types.h> |
| 27 | #include <asm/mach/arch.h> |
| 28 | #include <asm/mach/map.h> |
| 29 | |
| 30 | #include <mach/audio.h> |
| 31 | #include <mach/palmte2.h> |
| 32 | #include <mach/mmc.h> |
| 33 | #include <mach/pxafb.h> |
| 34 | #include <mach/mfp-pxa25x.h> |
| 35 | |
| 36 | #include "generic.h" |
| 37 | #include "devices.h" |
| 38 | |
| 39 | /****************************************************************************** |
| 40 | * Pin configuration |
| 41 | ******************************************************************************/ |
| 42 | static unsigned long palmte2_pin_config[] __initdata = { |
| 43 | /* MMC */ |
| 44 | GPIO6_MMC_CLK, |
| 45 | GPIO8_MMC_CS0, |
| 46 | GPIO10_GPIO, /* SD detect */ |
| 47 | GPIO55_GPIO, /* SD power */ |
| 48 | GPIO51_GPIO, /* SD r/o switch */ |
| 49 | |
| 50 | /* AC97 */ |
| 51 | GPIO28_AC97_BITCLK, |
| 52 | GPIO29_AC97_SDATA_IN_0, |
| 53 | GPIO30_AC97_SDATA_OUT, |
| 54 | GPIO31_AC97_SYNC, |
| 55 | |
| 56 | /* PWM */ |
| 57 | GPIO16_PWM0_OUT, |
| 58 | |
| 59 | /* LCD */ |
| 60 | GPIO58_LCD_LDD_0, |
| 61 | GPIO59_LCD_LDD_1, |
| 62 | GPIO60_LCD_LDD_2, |
| 63 | GPIO61_LCD_LDD_3, |
| 64 | GPIO62_LCD_LDD_4, |
| 65 | GPIO63_LCD_LDD_5, |
| 66 | GPIO64_LCD_LDD_6, |
| 67 | GPIO65_LCD_LDD_7, |
| 68 | GPIO66_LCD_LDD_8, |
| 69 | GPIO67_LCD_LDD_9, |
| 70 | GPIO68_LCD_LDD_10, |
| 71 | GPIO69_LCD_LDD_11, |
| 72 | GPIO70_LCD_LDD_12, |
| 73 | GPIO71_LCD_LDD_13, |
| 74 | GPIO72_LCD_LDD_14, |
| 75 | GPIO73_LCD_LDD_15, |
| 76 | GPIO74_LCD_FCLK, |
| 77 | GPIO75_LCD_LCLK, |
| 78 | GPIO76_LCD_PCLK, |
| 79 | |
| 80 | /* GPIO KEYS */ |
| 81 | GPIO5_GPIO, /* notes */ |
| 82 | GPIO7_GPIO, /* tasks */ |
| 83 | GPIO11_GPIO, /* calendar */ |
| 84 | GPIO13_GPIO, /* contacts */ |
| 85 | GPIO14_GPIO, /* center */ |
| 86 | GPIO19_GPIO, /* left */ |
| 87 | GPIO20_GPIO, /* right */ |
| 88 | GPIO21_GPIO, /* down */ |
| 89 | GPIO22_GPIO, /* up */ |
| 90 | |
| 91 | /* MISC */ |
| 92 | GPIO1_RST, /* reset */ |
| 93 | }; |
| 94 | |
| 95 | /****************************************************************************** |
| 96 | * SD/MMC card controller |
| 97 | ******************************************************************************/ |
| 98 | static int palmte2_mci_init(struct device *dev, |
| 99 | irq_handler_t palmte2_detect_int, void *data) |
| 100 | { |
| 101 | int err = 0; |
| 102 | |
| 103 | /* Setup an interrupt for detecting card insert/remove events */ |
| 104 | err = gpio_request(GPIO_NR_PALMTE2_SD_DETECT_N, "SD IRQ"); |
| 105 | if (err) |
| 106 | goto err; |
| 107 | err = gpio_direction_input(GPIO_NR_PALMTE2_SD_DETECT_N); |
| 108 | if (err) |
| 109 | goto err2; |
| 110 | err = request_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), |
| 111 | palmte2_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM | |
| 112 | IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, |
| 113 | "SD/MMC card detect", data); |
| 114 | if (err) { |
| 115 | printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n", |
| 116 | __func__); |
| 117 | goto err2; |
| 118 | } |
| 119 | |
| 120 | err = gpio_request(GPIO_NR_PALMTE2_SD_POWER, "SD_POWER"); |
| 121 | if (err) |
| 122 | goto err3; |
| 123 | err = gpio_direction_output(GPIO_NR_PALMTE2_SD_POWER, 0); |
| 124 | if (err) |
| 125 | goto err4; |
| 126 | |
| 127 | err = gpio_request(GPIO_NR_PALMTE2_SD_READONLY, "SD_READONLY"); |
| 128 | if (err) |
| 129 | goto err4; |
| 130 | err = gpio_direction_input(GPIO_NR_PALMTE2_SD_READONLY); |
| 131 | if (err) |
| 132 | goto err5; |
| 133 | |
| 134 | printk(KERN_DEBUG "%s: irq registered\n", __func__); |
| 135 | |
| 136 | return 0; |
| 137 | |
| 138 | err5: |
| 139 | gpio_free(GPIO_NR_PALMTE2_SD_READONLY); |
| 140 | err4: |
| 141 | gpio_free(GPIO_NR_PALMTE2_SD_POWER); |
| 142 | err3: |
| 143 | free_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), data); |
| 144 | err2: |
| 145 | gpio_free(GPIO_NR_PALMTE2_SD_DETECT_N); |
| 146 | err: |
| 147 | return err; |
| 148 | } |
| 149 | |
| 150 | static void palmte2_mci_exit(struct device *dev, void *data) |
| 151 | { |
| 152 | gpio_free(GPIO_NR_PALMTE2_SD_READONLY); |
| 153 | gpio_free(GPIO_NR_PALMTE2_SD_POWER); |
| 154 | free_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), data); |
| 155 | gpio_free(GPIO_NR_PALMTE2_SD_DETECT_N); |
| 156 | } |
| 157 | |
| 158 | static void palmte2_mci_power(struct device *dev, unsigned int vdd) |
| 159 | { |
| 160 | struct pxamci_platform_data *p_d = dev->platform_data; |
| 161 | gpio_set_value(GPIO_NR_PALMTE2_SD_POWER, p_d->ocr_mask & (1 << vdd)); |
| 162 | } |
| 163 | |
| 164 | static int palmte2_mci_get_ro(struct device *dev) |
| 165 | { |
| 166 | return gpio_get_value(GPIO_NR_PALMTE2_SD_READONLY); |
| 167 | } |
| 168 | |
| 169 | static struct pxamci_platform_data palmte2_mci_platform_data = { |
| 170 | .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, |
| 171 | .setpower = palmte2_mci_power, |
| 172 | .get_ro = palmte2_mci_get_ro, |
| 173 | .init = palmte2_mci_init, |
| 174 | .exit = palmte2_mci_exit, |
| 175 | }; |
| 176 | |
| 177 | /****************************************************************************** |
| 178 | * GPIO keys |
| 179 | ******************************************************************************/ |
| 180 | static struct gpio_keys_button palmte2_pxa_buttons[] = { |
| 181 | {KEY_F1, GPIO_NR_PALMTE2_KEY_CONTACTS, 1, "Contacts" }, |
| 182 | {KEY_F2, GPIO_NR_PALMTE2_KEY_CALENDAR, 1, "Calendar" }, |
| 183 | {KEY_F3, GPIO_NR_PALMTE2_KEY_TASKS, 1, "Tasks" }, |
| 184 | {KEY_F4, GPIO_NR_PALMTE2_KEY_NOTES, 1, "Notes" }, |
| 185 | {KEY_ENTER, GPIO_NR_PALMTE2_KEY_CENTER, 1, "Center" }, |
| 186 | {KEY_LEFT, GPIO_NR_PALMTE2_KEY_LEFT, 1, "Left" }, |
| 187 | {KEY_RIGHT, GPIO_NR_PALMTE2_KEY_RIGHT, 1, "Right" }, |
| 188 | {KEY_DOWN, GPIO_NR_PALMTE2_KEY_DOWN, 1, "Down" }, |
| 189 | {KEY_UP, GPIO_NR_PALMTE2_KEY_UP, 1, "Up" }, |
| 190 | }; |
| 191 | |
| 192 | static struct gpio_keys_platform_data palmte2_pxa_keys_data = { |
| 193 | .buttons = palmte2_pxa_buttons, |
| 194 | .nbuttons = ARRAY_SIZE(palmte2_pxa_buttons), |
| 195 | }; |
| 196 | |
| 197 | static struct platform_device palmte2_pxa_keys = { |
| 198 | .name = "gpio-keys", |
| 199 | .id = -1, |
| 200 | .dev = { |
| 201 | .platform_data = &palmte2_pxa_keys_data, |
| 202 | }, |
| 203 | }; |
| 204 | |
| 205 | /****************************************************************************** |
| 206 | * Backlight |
| 207 | ******************************************************************************/ |
| 208 | static struct platform_pwm_backlight_data palmte2_backlight_data = { |
| 209 | .pwm_id = 0, |
| 210 | .max_brightness = PALMTE2_MAX_INTENSITY, |
| 211 | .dft_brightness = PALMTE2_MAX_INTENSITY, |
| 212 | .pwm_period_ns = PALMTE2_PERIOD_NS, |
| 213 | }; |
| 214 | |
| 215 | static struct platform_device palmte2_backlight = { |
| 216 | .name = "pwm-backlight", |
| 217 | .dev = { |
| 218 | .parent = &pxa25x_device_pwm0.dev, |
| 219 | .platform_data = &palmte2_backlight_data, |
| 220 | }, |
| 221 | }; |
| 222 | |
| 223 | /****************************************************************************** |
| 224 | * Framebuffer |
| 225 | ******************************************************************************/ |
| 226 | static struct pxafb_mode_info palmte2_lcd_modes[] = { |
| 227 | { |
| 228 | .pixclock = 77757, |
| 229 | .xres = 320, |
| 230 | .yres = 320, |
| 231 | .bpp = 16, |
| 232 | |
| 233 | .left_margin = 28, |
| 234 | .right_margin = 7, |
| 235 | .upper_margin = 7, |
| 236 | .lower_margin = 5, |
| 237 | |
| 238 | .hsync_len = 4, |
| 239 | .vsync_len = 1, |
| 240 | }, |
| 241 | }; |
| 242 | |
| 243 | static struct pxafb_mach_info palmte2_lcd_screen = { |
| 244 | .modes = palmte2_lcd_modes, |
| 245 | .num_modes = ARRAY_SIZE(palmte2_lcd_modes), |
| 246 | .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, |
| 247 | }; |
| 248 | |
| 249 | /****************************************************************************** |
| 250 | * Machine init |
| 251 | ******************************************************************************/ |
| 252 | static struct platform_device *devices[] __initdata = { |
| 253 | #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) |
| 254 | &palmte2_pxa_keys, |
| 255 | #endif |
| 256 | &palmte2_backlight, |
| 257 | }; |
| 258 | |
| 259 | static void __init palmte2_init(void) |
| 260 | { |
| 261 | pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config)); |
| 262 | |
| 263 | set_pxa_fb_info(&palmte2_lcd_screen); |
| 264 | pxa_set_mci_info(&palmte2_mci_platform_data); |
| 265 | pxa_set_ac97_info(NULL); |
| 266 | |
| 267 | platform_add_devices(devices, ARRAY_SIZE(devices)); |
| 268 | } |
| 269 | |
| 270 | MACHINE_START(PALMTE2, "Palm Tungsten|E2") |
| 271 | .phys_io = 0x40000000, |
| 272 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, |
| 273 | .boot_params = 0xa0000100, |
| 274 | .map_io = pxa_map_io, |
| 275 | .init_irq = pxa25x_init_irq, |
| 276 | .timer = &pxa_timer, |
| 277 | .init_machine = palmte2_init |
| 278 | MACHINE_END |