Marek Vašut | b5e4ad5 | 2008-07-07 17:25:46 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Hardware definitions for PalmTX |
| 3 | * |
| 4 | * Author: Marek Vasut <marek.vasut@gmail.com> |
| 5 | * |
| 6 | * Based on work of: |
| 7 | * Alex Osborne <ato@meshy.org> |
| 8 | * Cristiano P. <cristianop@users.sourceforge.net> |
| 9 | * Jan Herman <2hp@seznam.cz> |
| 10 | * Michal Hrusecky |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License version 2 as |
| 14 | * published by the Free Software Foundation. |
| 15 | * |
| 16 | * (find more info at www.hackndev.com) |
| 17 | * |
| 18 | */ |
| 19 | |
| 20 | #include <linux/platform_device.h> |
| 21 | #include <linux/delay.h> |
| 22 | #include <linux/irq.h> |
| 23 | #include <linux/gpio_keys.h> |
| 24 | #include <linux/input.h> |
Marek Vašut | d4b19c4 | 2008-07-07 17:31:58 +0100 | [diff] [blame] | 25 | #include <linux/pda_power.h> |
Marek Vašut | b5e4ad5 | 2008-07-07 17:25:46 +0100 | [diff] [blame] | 26 | #include <linux/pwm_backlight.h> |
| 27 | #include <linux/gpio.h> |
| 28 | |
| 29 | #include <asm/mach-types.h> |
| 30 | #include <asm/mach/arch.h> |
| 31 | #include <asm/mach/map.h> |
| 32 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame^] | 33 | #include <mach/audio.h> |
| 34 | #include <mach/palmtx.h> |
| 35 | #include <mach/mmc.h> |
| 36 | #include <mach/pxafb.h> |
| 37 | #include <mach/pxa-regs.h> |
| 38 | #include <mach/mfp-pxa27x.h> |
| 39 | #include <mach/irda.h> |
| 40 | #include <mach/pxa27x_keypad.h> |
| 41 | #include <mach/udc.h> |
Marek Vašut | b5e4ad5 | 2008-07-07 17:25:46 +0100 | [diff] [blame] | 42 | |
| 43 | #include "generic.h" |
| 44 | #include "devices.h" |
| 45 | |
| 46 | /****************************************************************************** |
| 47 | * Pin configuration |
| 48 | ******************************************************************************/ |
| 49 | static unsigned long palmtx_pin_config[] __initdata = { |
| 50 | /* MMC */ |
| 51 | GPIO32_MMC_CLK, |
| 52 | GPIO92_MMC_DAT_0, |
| 53 | GPIO109_MMC_DAT_1, |
| 54 | GPIO110_MMC_DAT_2, |
| 55 | GPIO111_MMC_DAT_3, |
| 56 | GPIO112_MMC_CMD, |
| 57 | |
| 58 | /* AC97 */ |
| 59 | GPIO28_AC97_BITCLK, |
| 60 | GPIO29_AC97_SDATA_IN_0, |
| 61 | GPIO30_AC97_SDATA_OUT, |
| 62 | GPIO31_AC97_SYNC, |
| 63 | |
| 64 | /* IrDA */ |
| 65 | GPIO46_FICP_RXD, |
| 66 | GPIO47_FICP_TXD, |
| 67 | |
| 68 | /* PWM */ |
| 69 | GPIO16_PWM0_OUT, |
| 70 | |
| 71 | /* USB */ |
| 72 | GPIO13_GPIO, |
Marek Vašut | 3597840 | 2008-07-07 17:28:59 +0100 | [diff] [blame] | 73 | |
| 74 | /* PCMCIA */ |
| 75 | GPIO48_nPOE, |
| 76 | GPIO49_nPWE, |
| 77 | GPIO50_nPIOR, |
| 78 | GPIO51_nPIOW, |
| 79 | GPIO85_nPCE_1, |
| 80 | GPIO54_nPCE_2, |
| 81 | GPIO79_PSKTSEL, |
| 82 | GPIO55_nPREG, |
| 83 | GPIO56_nPWAIT, |
| 84 | GPIO57_nIOIS16, |
Marek Vašut | b5e4ad5 | 2008-07-07 17:25:46 +0100 | [diff] [blame] | 85 | }; |
| 86 | |
| 87 | /****************************************************************************** |
| 88 | * SD/MMC card controller |
| 89 | ******************************************************************************/ |
| 90 | static int palmtx_mci_init(struct device *dev, irq_handler_t palmtx_detect_int, |
| 91 | void *data) |
| 92 | { |
| 93 | int err = 0; |
| 94 | |
| 95 | /* Setup an interrupt for detecting card insert/remove events */ |
| 96 | err = request_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, palmtx_detect_int, |
| 97 | IRQF_DISABLED | IRQF_SAMPLE_RANDOM | |
| 98 | IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, |
| 99 | "SD/MMC card detect", data); |
| 100 | if (err) { |
| 101 | printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n", |
| 102 | __func__); |
| 103 | return err; |
| 104 | } |
| 105 | |
| 106 | err = gpio_request(GPIO_NR_PALMTX_SD_POWER, "SD_POWER"); |
| 107 | if (err) |
| 108 | goto pwr_err; |
| 109 | |
| 110 | err = gpio_request(GPIO_NR_PALMTX_SD_READONLY, "SD_READONLY"); |
| 111 | if (err) |
| 112 | goto ro_err; |
| 113 | |
| 114 | printk(KERN_DEBUG "%s: irq registered\n", __func__); |
| 115 | |
| 116 | return 0; |
| 117 | |
| 118 | ro_err: |
| 119 | gpio_free(GPIO_NR_PALMTX_SD_POWER); |
| 120 | pwr_err: |
| 121 | free_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, data); |
| 122 | return err; |
| 123 | } |
| 124 | |
| 125 | static void palmtx_mci_exit(struct device *dev, void *data) |
| 126 | { |
| 127 | gpio_free(GPIO_NR_PALMTX_SD_READONLY); |
| 128 | gpio_free(GPIO_NR_PALMTX_SD_POWER); |
| 129 | free_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, data); |
| 130 | } |
| 131 | |
| 132 | static void palmtx_mci_power(struct device *dev, unsigned int vdd) |
| 133 | { |
| 134 | struct pxamci_platform_data *p_d = dev->platform_data; |
| 135 | gpio_set_value(GPIO_NR_PALMTX_SD_POWER, p_d->ocr_mask & (1 << vdd)); |
| 136 | } |
| 137 | |
| 138 | static int palmtx_mci_get_ro(struct device *dev) |
| 139 | { |
| 140 | return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY); |
| 141 | } |
| 142 | |
| 143 | static struct pxamci_platform_data palmtx_mci_platform_data = { |
| 144 | .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, |
| 145 | .setpower = palmtx_mci_power, |
| 146 | .get_ro = palmtx_mci_get_ro, |
| 147 | .init = palmtx_mci_init, |
| 148 | .exit = palmtx_mci_exit, |
| 149 | }; |
| 150 | |
| 151 | /****************************************************************************** |
| 152 | * GPIO keyboard |
| 153 | ******************************************************************************/ |
| 154 | static unsigned int palmtx_matrix_keys[] = { |
| 155 | KEY(0, 0, KEY_POWER), |
| 156 | KEY(0, 1, KEY_F1), |
| 157 | KEY(0, 2, KEY_ENTER), |
| 158 | |
| 159 | KEY(1, 0, KEY_F2), |
| 160 | KEY(1, 1, KEY_F3), |
| 161 | KEY(1, 2, KEY_F4), |
| 162 | |
| 163 | KEY(2, 0, KEY_UP), |
| 164 | KEY(2, 2, KEY_DOWN), |
| 165 | |
| 166 | KEY(3, 0, KEY_RIGHT), |
| 167 | KEY(3, 2, KEY_LEFT), |
| 168 | |
| 169 | }; |
| 170 | |
| 171 | static struct pxa27x_keypad_platform_data palmtx_keypad_platform_data = { |
| 172 | .matrix_key_rows = 4, |
| 173 | .matrix_key_cols = 3, |
| 174 | .matrix_key_map = palmtx_matrix_keys, |
| 175 | .matrix_key_map_size = ARRAY_SIZE(palmtx_matrix_keys), |
| 176 | |
| 177 | .debounce_interval = 30, |
| 178 | }; |
| 179 | |
| 180 | /****************************************************************************** |
| 181 | * GPIO keys |
| 182 | ******************************************************************************/ |
| 183 | static struct gpio_keys_button palmtx_pxa_buttons[] = { |
| 184 | {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" }, |
| 185 | }; |
| 186 | |
| 187 | static struct gpio_keys_platform_data palmtx_pxa_keys_data = { |
| 188 | .buttons = palmtx_pxa_buttons, |
| 189 | .nbuttons = ARRAY_SIZE(palmtx_pxa_buttons), |
| 190 | }; |
| 191 | |
| 192 | static struct platform_device palmtx_pxa_keys = { |
| 193 | .name = "gpio-keys", |
| 194 | .id = -1, |
| 195 | .dev = { |
| 196 | .platform_data = &palmtx_pxa_keys_data, |
| 197 | }, |
| 198 | }; |
| 199 | |
| 200 | /****************************************************************************** |
| 201 | * Backlight |
| 202 | ******************************************************************************/ |
| 203 | static int palmtx_backlight_init(struct device *dev) |
| 204 | { |
| 205 | int ret; |
| 206 | |
| 207 | ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER"); |
| 208 | if (ret) |
| 209 | goto err; |
| 210 | ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER"); |
| 211 | if (ret) |
| 212 | goto err2; |
| 213 | |
| 214 | return 0; |
| 215 | err2: |
| 216 | gpio_free(GPIO_NR_PALMTX_BL_POWER); |
| 217 | err: |
| 218 | return ret; |
| 219 | } |
| 220 | |
| 221 | static int palmtx_backlight_notify(int brightness) |
| 222 | { |
| 223 | gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness); |
| 224 | gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness); |
| 225 | return brightness; |
| 226 | } |
| 227 | |
| 228 | static void palmtx_backlight_exit(struct device *dev) |
| 229 | { |
| 230 | gpio_free(GPIO_NR_PALMTX_BL_POWER); |
| 231 | gpio_free(GPIO_NR_PALMTX_LCD_POWER); |
| 232 | } |
| 233 | |
| 234 | static struct platform_pwm_backlight_data palmtx_backlight_data = { |
| 235 | .pwm_id = 0, |
| 236 | .max_brightness = PALMTX_MAX_INTENSITY, |
| 237 | .dft_brightness = PALMTX_MAX_INTENSITY, |
| 238 | .pwm_period_ns = PALMTX_PERIOD_NS, |
| 239 | .init = palmtx_backlight_init, |
| 240 | .notify = palmtx_backlight_notify, |
| 241 | .exit = palmtx_backlight_exit, |
| 242 | }; |
| 243 | |
| 244 | static struct platform_device palmtx_backlight = { |
| 245 | .name = "pwm-backlight", |
| 246 | .dev = { |
| 247 | .parent = &pxa27x_device_pwm0.dev, |
| 248 | .platform_data = &palmtx_backlight_data, |
| 249 | }, |
| 250 | }; |
| 251 | |
| 252 | /****************************************************************************** |
| 253 | * IrDA |
| 254 | ******************************************************************************/ |
| 255 | static void palmtx_irda_transceiver_mode(struct device *dev, int mode) |
| 256 | { |
| 257 | gpio_set_value(GPIO_NR_PALMTX_IR_DISABLE, mode & IR_OFF); |
| 258 | pxa2xx_transceiver_mode(dev, mode); |
| 259 | } |
| 260 | |
| 261 | static struct pxaficp_platform_data palmtx_ficp_platform_data = { |
| 262 | .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF, |
| 263 | .transceiver_mode = palmtx_irda_transceiver_mode, |
| 264 | }; |
| 265 | |
| 266 | /****************************************************************************** |
| 267 | * UDC |
| 268 | ******************************************************************************/ |
| 269 | static void palmtx_udc_command(int cmd) |
| 270 | { |
| 271 | gpio_set_value(GPIO_NR_PALMTX_USB_POWER, !cmd); |
| 272 | udelay(50); |
| 273 | gpio_set_value(GPIO_NR_PALMTX_USB_PULLUP, !cmd); |
| 274 | } |
| 275 | |
| 276 | static struct pxa2xx_udc_mach_info palmtx_udc_info __initdata = { |
| 277 | .gpio_vbus = GPIO_NR_PALMTX_USB_DETECT_N, |
| 278 | .gpio_vbus_inverted = 1, |
| 279 | .udc_command = palmtx_udc_command, |
| 280 | }; |
| 281 | |
| 282 | /****************************************************************************** |
Marek Vašut | d4b19c4 | 2008-07-07 17:31:58 +0100 | [diff] [blame] | 283 | * Power supply |
| 284 | ******************************************************************************/ |
| 285 | static int power_supply_init(struct device *dev) |
| 286 | { |
| 287 | int ret; |
| 288 | |
| 289 | ret = gpio_request(GPIO_NR_PALMTX_POWER_DETECT, "CABLE_STATE_AC"); |
| 290 | if (ret) |
| 291 | goto err_cs_ac; |
| 292 | |
| 293 | ret = gpio_request(GPIO_NR_PALMTX_USB_DETECT_N, "CABLE_STATE_USB"); |
| 294 | if (ret) |
| 295 | goto err_cs_usb; |
| 296 | |
| 297 | return 0; |
| 298 | |
| 299 | err_cs_usb: |
| 300 | gpio_free(GPIO_NR_PALMTX_POWER_DETECT); |
| 301 | err_cs_ac: |
| 302 | return ret; |
| 303 | } |
| 304 | |
| 305 | static int palmtx_is_ac_online(void) |
| 306 | { |
| 307 | return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT); |
| 308 | } |
| 309 | |
| 310 | static int palmtx_is_usb_online(void) |
| 311 | { |
| 312 | return !gpio_get_value(GPIO_NR_PALMTX_USB_DETECT_N); |
| 313 | } |
| 314 | |
| 315 | static void power_supply_exit(struct device *dev) |
| 316 | { |
| 317 | gpio_free(GPIO_NR_PALMTX_USB_DETECT_N); |
| 318 | gpio_free(GPIO_NR_PALMTX_POWER_DETECT); |
| 319 | } |
| 320 | |
| 321 | static char *palmtx_supplicants[] = { |
| 322 | "main-battery", |
| 323 | }; |
| 324 | |
| 325 | static struct pda_power_pdata power_supply_info = { |
| 326 | .init = power_supply_init, |
| 327 | .is_ac_online = palmtx_is_ac_online, |
| 328 | .is_usb_online = palmtx_is_usb_online, |
| 329 | .exit = power_supply_exit, |
| 330 | .supplied_to = palmtx_supplicants, |
| 331 | .num_supplicants = ARRAY_SIZE(palmtx_supplicants), |
| 332 | }; |
| 333 | |
| 334 | static struct platform_device power_supply = { |
| 335 | .name = "pda-power", |
| 336 | .id = -1, |
| 337 | .dev = { |
| 338 | .platform_data = &power_supply_info, |
| 339 | }, |
| 340 | }; |
| 341 | |
| 342 | /****************************************************************************** |
Marek Vašut | b5e4ad5 | 2008-07-07 17:25:46 +0100 | [diff] [blame] | 343 | * Framebuffer |
| 344 | ******************************************************************************/ |
| 345 | static struct pxafb_mode_info palmtx_lcd_modes[] = { |
| 346 | { |
| 347 | .pixclock = 57692, |
| 348 | .xres = 320, |
| 349 | .yres = 480, |
| 350 | .bpp = 16, |
| 351 | |
| 352 | .left_margin = 32, |
| 353 | .right_margin = 1, |
| 354 | .upper_margin = 7, |
| 355 | .lower_margin = 1, |
| 356 | |
| 357 | .hsync_len = 4, |
| 358 | .vsync_len = 1, |
| 359 | }, |
| 360 | }; |
| 361 | |
| 362 | static struct pxafb_mach_info palmtx_lcd_screen = { |
| 363 | .modes = palmtx_lcd_modes, |
| 364 | .num_modes = ARRAY_SIZE(palmtx_lcd_modes), |
| 365 | .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, |
| 366 | }; |
| 367 | |
| 368 | /****************************************************************************** |
| 369 | * Machine init |
| 370 | ******************************************************************************/ |
| 371 | static struct platform_device *devices[] __initdata = { |
| 372 | #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) |
| 373 | &palmtx_pxa_keys, |
| 374 | #endif |
| 375 | &palmtx_backlight, |
Marek Vašut | d4b19c4 | 2008-07-07 17:31:58 +0100 | [diff] [blame] | 376 | &power_supply, |
Marek Vašut | b5e4ad5 | 2008-07-07 17:25:46 +0100 | [diff] [blame] | 377 | }; |
| 378 | |
| 379 | static struct map_desc palmtx_io_desc[] __initdata = { |
| 380 | { |
| 381 | .virtual = PALMTX_PCMCIA_VIRT, |
| 382 | .pfn = __phys_to_pfn(PALMTX_PCMCIA_PHYS), |
| 383 | .length = PALMTX_PCMCIA_SIZE, |
| 384 | .type = MT_DEVICE |
| 385 | }, |
| 386 | }; |
| 387 | |
| 388 | static void __init palmtx_map_io(void) |
| 389 | { |
| 390 | pxa_map_io(); |
| 391 | iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc)); |
| 392 | } |
| 393 | |
| 394 | static void __init palmtx_init(void) |
| 395 | { |
| 396 | pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config)); |
| 397 | |
| 398 | set_pxa_fb_info(&palmtx_lcd_screen); |
| 399 | pxa_set_mci_info(&palmtx_mci_platform_data); |
| 400 | pxa_set_udc_info(&palmtx_udc_info); |
| 401 | pxa_set_ac97_info(NULL); |
| 402 | pxa_set_ficp_info(&palmtx_ficp_platform_data); |
| 403 | pxa_set_keypad_info(&palmtx_keypad_platform_data); |
| 404 | |
| 405 | platform_add_devices(devices, ARRAY_SIZE(devices)); |
| 406 | } |
| 407 | |
| 408 | MACHINE_START(PALMTX, "Palm T|X") |
| 409 | .phys_io = PALMTX_PHYS_IO_START, |
| 410 | .io_pg_offst = io_p2v(0x40000000), |
| 411 | .boot_params = 0xa0000100, |
| 412 | .map_io = palmtx_map_io, |
| 413 | .init_irq = pxa27x_init_irq, |
| 414 | .timer = &pxa_timer, |
| 415 | .init_machine = palmtx_init |
| 416 | MACHINE_END |