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TOMOYO Linux Cross Reference
Linux/arch/arm/mach-pxa/palmtc.c

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  1 /*
  2  * linux/arch/arm/mach-pxa/palmtc.c
  3  *
  4  * Support for the Palm Tungsten|C
  5  *
  6  * Author:      Marek Vasut <marek.vasut@gmail.com>
  7  *
  8  * Based on work of:
  9  *              Petr Blaha <p3t3@centrum.cz>
 10  *              Chetan S. Kumar <shivakumar.chetan@gmail.com>
 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 
 17 #include <linux/platform_device.h>
 18 #include <linux/delay.h>
 19 #include <linux/irq.h>
 20 #include <linux/input.h>
 21 #include <linux/pwm_backlight.h>
 22 #include <linux/gpio.h>
 23 #include <linux/input/matrix_keypad.h>
 24 #include <linux/ucb1400.h>
 25 #include <linux/power_supply.h>
 26 #include <linux/gpio_keys.h>
 27 #include <linux/mtd/physmap.h>
 28 
 29 #include <asm/mach-types.h>
 30 #include <asm/mach/arch.h>
 31 #include <asm/mach/map.h>
 32 
 33 #include <mach/audio.h>
 34 #include <mach/palmtc.h>
 35 #include <mach/mmc.h>
 36 #include <mach/pxafb.h>
 37 #include <mach/mfp-pxa25x.h>
 38 #include <mach/irda.h>
 39 #include <mach/udc.h>
 40 #include <mach/pxa2xx-regs.h>
 41 
 42 #include "generic.h"
 43 #include "devices.h"
 44 
 45 /******************************************************************************
 46  * Pin configuration
 47  ******************************************************************************/
 48 static unsigned long palmtc_pin_config[] __initdata = {
 49         /* MMC */
 50         GPIO6_MMC_CLK,
 51         GPIO8_MMC_CS0,
 52         GPIO12_GPIO,    /* detect */
 53         GPIO32_GPIO,    /* power */
 54         GPIO54_GPIO,    /* r/o switch */
 55 
 56         /* PCMCIA */
 57         GPIO52_nPCE_1,
 58         GPIO53_nPCE_2,
 59         GPIO50_nPIOR,
 60         GPIO51_nPIOW,
 61         GPIO49_nPWE,
 62         GPIO48_nPOE,
 63         GPIO52_nPCE_1,
 64         GPIO53_nPCE_2,
 65         GPIO57_nIOIS16,
 66         GPIO56_nPWAIT,
 67 
 68         /* AC97 */
 69         GPIO28_AC97_BITCLK,
 70         GPIO29_AC97_SDATA_IN_0,
 71         GPIO30_AC97_SDATA_OUT,
 72         GPIO31_AC97_SYNC,
 73 
 74         /* IrDA */
 75         GPIO45_GPIO,    /* ir disable */
 76         GPIO46_FICP_RXD,
 77         GPIO47_FICP_TXD,
 78 
 79         /* PWM */
 80         GPIO17_PWM1_OUT,
 81 
 82         /* USB */
 83         GPIO4_GPIO,     /* detect */
 84         GPIO36_GPIO,    /* pullup */
 85 
 86         /* LCD */
 87         GPIO58_LCD_LDD_0,
 88         GPIO59_LCD_LDD_1,
 89         GPIO60_LCD_LDD_2,
 90         GPIO61_LCD_LDD_3,
 91         GPIO62_LCD_LDD_4,
 92         GPIO63_LCD_LDD_5,
 93         GPIO64_LCD_LDD_6,
 94         GPIO65_LCD_LDD_7,
 95         GPIO66_LCD_LDD_8,
 96         GPIO67_LCD_LDD_9,
 97         GPIO68_LCD_LDD_10,
 98         GPIO69_LCD_LDD_11,
 99         GPIO70_LCD_LDD_12,
100         GPIO71_LCD_LDD_13,
101         GPIO72_LCD_LDD_14,
102         GPIO73_LCD_LDD_15,
103         GPIO74_LCD_FCLK,
104         GPIO75_LCD_LCLK,
105         GPIO76_LCD_PCLK,
106         GPIO77_LCD_BIAS,
107 
108         /* MATRIX KEYPAD */
109         GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,       /* in 0 */
110         GPIO9_GPIO | WAKEUP_ON_EDGE_BOTH,       /* in 1 */
111         GPIO10_GPIO | WAKEUP_ON_EDGE_BOTH,      /* in 2 */
112         GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH,      /* in 3 */
113         GPIO18_GPIO | MFP_LPM_DRIVE_LOW,        /* out 0 */
114         GPIO19_GPIO | MFP_LPM_DRIVE_LOW,        /* out 1 */
115         GPIO20_GPIO | MFP_LPM_DRIVE_LOW,        /* out 2 */
116         GPIO21_GPIO | MFP_LPM_DRIVE_LOW,        /* out 3 */
117         GPIO22_GPIO | MFP_LPM_DRIVE_LOW,        /* out 4 */
118         GPIO23_GPIO | MFP_LPM_DRIVE_LOW,        /* out 5 */
119         GPIO24_GPIO | MFP_LPM_DRIVE_LOW,        /* out 6 */
120         GPIO25_GPIO | MFP_LPM_DRIVE_LOW,        /* out 7 */
121         GPIO26_GPIO | MFP_LPM_DRIVE_LOW,        /* out 8 */
122         GPIO27_GPIO | MFP_LPM_DRIVE_LOW,        /* out 9 */
123         GPIO79_GPIO | MFP_LPM_DRIVE_LOW,        /* out 10 */
124         GPIO80_GPIO | MFP_LPM_DRIVE_LOW,        /* out 11 */
125 
126         /* PXA GPIO KEYS */
127         GPIO7_GPIO | WAKEUP_ON_EDGE_BOTH,       /* hotsync button on cradle */
128 
129         /* MISC */
130         GPIO1_RST,      /* reset */
131         GPIO2_GPIO,     /* earphone detect */
132         GPIO16_GPIO,    /* backlight switch */
133 };
134 
135 /******************************************************************************
136  * SD/MMC card controller
137  ******************************************************************************/
138 static struct pxamci_platform_data palmtc_mci_platform_data = {
139         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
140         .gpio_power             = GPIO_NR_PALMTC_SD_POWER,
141         .gpio_card_ro           = GPIO_NR_PALMTC_SD_READONLY,
142         .gpio_card_detect       = GPIO_NR_PALMTC_SD_DETECT_N,
143         .detect_delay           = 20,
144 };
145 
146 /******************************************************************************
147  * GPIO keys
148  ******************************************************************************/
149 static struct gpio_keys_button palmtc_pxa_buttons[] = {
150         {KEY_F8, GPIO_NR_PALMTC_HOTSYNC_BUTTON, 1, "HotSync Button", EV_KEY, 1},
151 };
152 
153 static struct gpio_keys_platform_data palmtc_pxa_keys_data = {
154         .buttons        = palmtc_pxa_buttons,
155         .nbuttons       = ARRAY_SIZE(palmtc_pxa_buttons),
156 };
157 
158 static struct platform_device palmtc_pxa_keys = {
159         .name   = "gpio-keys",
160         .id     = -1,
161         .dev    = {
162                 .platform_data = &palmtc_pxa_keys_data,
163         },
164 };
165 
166 /******************************************************************************
167  * Backlight
168  ******************************************************************************/
169 static int palmtc_backlight_init(struct device *dev)
170 {
171         int ret;
172 
173         ret = gpio_request(GPIO_NR_PALMTC_BL_POWER, "BL POWER");
174         if (ret)
175                 goto err;
176         ret = gpio_direction_output(GPIO_NR_PALMTC_BL_POWER, 1);
177         if (ret)
178                 goto err2;
179 
180         return 0;
181 
182 err2:
183         gpio_free(GPIO_NR_PALMTC_BL_POWER);
184 err:
185         return ret;
186 }
187 
188 static int palmtc_backlight_notify(int brightness)
189 {
190         /* backlight is on when GPIO16 AF0 is high */
191         gpio_set_value(GPIO_NR_PALMTC_BL_POWER, brightness);
192         return brightness;
193 }
194 
195 static void palmtc_backlight_exit(struct device *dev)
196 {
197         gpio_free(GPIO_NR_PALMTC_BL_POWER);
198 }
199 
200 static struct platform_pwm_backlight_data palmtc_backlight_data = {
201         .pwm_id         = 1,
202         .max_brightness = PALMTC_MAX_INTENSITY,
203         .dft_brightness = PALMTC_MAX_INTENSITY,
204         .pwm_period_ns  = PALMTC_PERIOD_NS,
205         .init           = palmtc_backlight_init,
206         .notify         = palmtc_backlight_notify,
207         .exit           = palmtc_backlight_exit,
208 };
209 
210 static struct platform_device palmtc_backlight = {
211         .name   = "pwm-backlight",
212         .dev    = {
213                 .parent         = &pxa25x_device_pwm1.dev,
214                 .platform_data  = &palmtc_backlight_data,
215         },
216 };
217 
218 /******************************************************************************
219  * IrDA
220  ******************************************************************************/
221 static struct pxaficp_platform_data palmtc_ficp_platform_data = {
222         .gpio_pwdown            = GPIO_NR_PALMTC_IR_DISABLE,
223         .transceiver_cap        = IR_SIRMODE | IR_OFF,
224 };
225 
226 /******************************************************************************
227  * Keyboard
228  ******************************************************************************/
229 static const uint32_t palmtc_matrix_keys[] = {
230         KEY(0, 0, KEY_F1),
231         KEY(0, 1, KEY_X),
232         KEY(0, 2, KEY_POWER),
233         KEY(0, 3, KEY_TAB),
234         KEY(0, 4, KEY_A),
235         KEY(0, 5, KEY_Q),
236         KEY(0, 6, KEY_LEFTSHIFT),
237         KEY(0, 7, KEY_Z),
238         KEY(0, 8, KEY_S),
239         KEY(0, 9, KEY_W),
240         KEY(0, 10, KEY_E),
241         KEY(0, 11, KEY_UP),
242 
243         KEY(1, 0, KEY_F2),
244         KEY(1, 1, KEY_DOWN),
245         KEY(1, 3, KEY_D),
246         KEY(1, 4, KEY_C),
247         KEY(1, 5, KEY_F),
248         KEY(1, 6, KEY_R),
249         KEY(1, 7, KEY_SPACE),
250         KEY(1, 8, KEY_V),
251         KEY(1, 9, KEY_G),
252         KEY(1, 10, KEY_T),
253         KEY(1, 11, KEY_LEFT),
254 
255         KEY(2, 0, KEY_F3),
256         KEY(2, 1, KEY_LEFTCTRL),
257         KEY(2, 3, KEY_H),
258         KEY(2, 4, KEY_Y),
259         KEY(2, 5, KEY_N),
260         KEY(2, 6, KEY_J),
261         KEY(2, 7, KEY_U),
262         KEY(2, 8, KEY_M),
263         KEY(2, 9, KEY_K),
264         KEY(2, 10, KEY_I),
265         KEY(2, 11, KEY_RIGHT),
266 
267         KEY(3, 0, KEY_F4),
268         KEY(3, 1, KEY_ENTER),
269         KEY(3, 3, KEY_DOT),
270         KEY(3, 4, KEY_L),
271         KEY(3, 5, KEY_O),
272         KEY(3, 6, KEY_LEFTALT),
273         KEY(3, 7, KEY_ENTER),
274         KEY(3, 8, KEY_BACKSPACE),
275         KEY(3, 9, KEY_P),
276         KEY(3, 10, KEY_B),
277         KEY(3, 11, KEY_FN),
278 };
279 
280 const struct matrix_keymap_data palmtc_keymap_data = {
281         .keymap                 = palmtc_matrix_keys,
282         .keymap_size            = ARRAY_SIZE(palmtc_matrix_keys),
283 };
284 
285 const static unsigned int palmtc_keypad_row_gpios[] = {
286         0, 9, 10, 11
287 };
288 
289 const static unsigned int palmtc_keypad_col_gpios[] = {
290         18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 79, 80
291 };
292 
293 static struct matrix_keypad_platform_data palmtc_keypad_platform_data = {
294         .keymap_data    = &palmtc_keymap_data,
295         .row_gpios      = palmtc_keypad_row_gpios,
296         .num_row_gpios  = ARRAY_SIZE(palmtc_keypad_row_gpios),
297         .col_gpios      = palmtc_keypad_col_gpios,
298         .num_col_gpios  = ARRAY_SIZE(palmtc_keypad_col_gpios),
299         .active_low     = 1,
300 
301         .debounce_ms            = 20,
302         .col_scan_delay_us      = 5,
303 };
304 
305 static struct platform_device palmtc_keyboard = {
306         .name   = "matrix-keypad",
307         .id     = -1,
308         .dev    = {
309                 .platform_data = &palmtc_keypad_platform_data,
310         },
311 };
312 
313 /******************************************************************************
314  * UDC
315  ******************************************************************************/
316 static struct pxa2xx_udc_mach_info palmtc_udc_info __initdata = {
317         .gpio_vbus              = GPIO_NR_PALMTC_USB_DETECT_N,
318         .gpio_vbus_inverted     = 1,
319         .gpio_pullup            = GPIO_NR_PALMTC_USB_POWER,
320 };
321 
322 /******************************************************************************
323  * Touchscreen / Battery / GPIO-extender
324  ******************************************************************************/
325 static struct platform_device palmtc_ucb1400_core = {
326         .name   = "ucb1400_core",
327         .id     = -1,
328 };
329 
330 /******************************************************************************
331  * NOR Flash
332  ******************************************************************************/
333 static struct resource palmtc_flash_resource = {
334         .start  = PXA_CS0_PHYS,
335         .end    = PXA_CS0_PHYS + SZ_16M - 1,
336         .flags  = IORESOURCE_MEM,
337 };
338 
339 static struct mtd_partition palmtc_flash_parts[] = {
340         {
341                 .name   = "U-Boot Bootloader",
342                 .offset = 0x0,
343                 .size   = 0x40000,
344         },
345         {
346                 .name   = "Linux Kernel",
347                 .offset = 0x40000,
348                 .size   = 0x2c0000,
349         },
350         {
351                 .name   = "Filesystem",
352                 .offset = 0x300000,
353                 .size   = 0xcc0000,
354         },
355         {
356                 .name   = "U-Boot Environment",
357                 .offset = 0xfc0000,
358                 .size   = MTDPART_SIZ_FULL,
359         },
360 };
361 
362 static struct physmap_flash_data palmtc_flash_data = {
363         .width          = 4,
364         .parts          = palmtc_flash_parts,
365         .nr_parts       = ARRAY_SIZE(palmtc_flash_parts),
366 };
367 
368 static struct platform_device palmtc_flash = {
369         .name           = "physmap-flash",
370         .id             = -1,
371         .resource       = &palmtc_flash_resource,
372         .num_resources  = 1,
373         .dev = {
374                 .platform_data  = &palmtc_flash_data,
375         },
376 };
377 
378 /******************************************************************************
379  * Framebuffer
380  ******************************************************************************/
381 static struct pxafb_mode_info palmtc_lcd_modes[] = {
382 {
383         .pixclock       = 115384,
384         .xres           = 320,
385         .yres           = 320,
386         .bpp            = 16,
387 
388         .left_margin    = 27,
389         .right_margin   = 7,
390         .upper_margin   = 7,
391         .lower_margin   = 8,
392 
393         .hsync_len      = 6,
394         .vsync_len      = 1,
395 },
396 };
397 
398 static struct pxafb_mach_info palmtc_lcd_screen = {
399         .modes                  = palmtc_lcd_modes,
400         .num_modes              = ARRAY_SIZE(palmtc_lcd_modes),
401         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
402 };
403 
404 /******************************************************************************
405  * Machine init
406  ******************************************************************************/
407 static struct platform_device *devices[] __initdata = {
408         &palmtc_backlight,
409         &palmtc_ucb1400_core,
410         &palmtc_keyboard,
411         &palmtc_pxa_keys,
412         &palmtc_flash,
413 };
414 
415 static void __init palmtc_init(void)
416 {
417         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtc_pin_config));
418 
419         set_pxa_fb_info(&palmtc_lcd_screen);
420         pxa_set_mci_info(&palmtc_mci_platform_data);
421         pxa_set_udc_info(&palmtc_udc_info);
422         pxa_set_ac97_info(NULL);
423         pxa_set_ficp_info(&palmtc_ficp_platform_data);
424 
425         platform_add_devices(devices, ARRAY_SIZE(devices));
426 };
427 
428 MACHINE_START(PALMTC, "Palm Tungsten|C")
429         .phys_io        = 0x40000000,
430         .boot_params    = 0xa0000100,
431         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
432         .map_io         = pxa_map_io,
433         .init_irq       = pxa25x_init_irq,
434         .timer          = &pxa_timer,
435         .init_machine   = palmtc_init
436 MACHINE_END
437 

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