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authorVasily Khoruzhick <anarsoul@gmail.com>2010-05-11 02:55:07 -0400
committerBen Dooks <ben-linux@fluff.org>2010-05-11 20:19:01 -0400
commitc394f17799523fe4bc92d173b3d9ac2d240c76a2 (patch)
tree9f6512dc84f98179078a89448d18cc1c01094dff /arch/arm/mach-s3c2440/mach-rx1950.c
parent7ebd467551ed6ae200d7835a84bbda0dcadaa511 (diff)
ARM: S3C2440: Add HP iPAQ RX1950 machine support
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Denis Grigoriev <dgreenday@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/mach-s3c2440/mach-rx1950.c')
-rw-r--r--arch/arm/mach-s3c2440/mach-rx1950.c582
1 files changed, 582 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2440/mach-rx1950.c b/arch/arm/mach-s3c2440/mach-rx1950.c
new file mode 100644
index 000000000000..8603b577a24b
--- /dev/null
+++ b/arch/arm/mach-s3c2440/mach-rx1950.c
@@ -0,0 +1,582 @@
1/* linux/arch/arm/mach-s3c2440/mach-rx1950.c
2 *
3 * Copyright (c) 2006-2009 Victor Chukhantsev, Denis Grigoriev,
4 * Copyright (c) 2007-2010 Vasily Khoruzhick
5 *
6 * based on smdk2440 written by Ben Dooks
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12*/
13
14#include <linux/kernel.h>
15#include <linux/types.h>
16#include <linux/interrupt.h>
17#include <linux/list.h>
18#include <linux/delay.h>
19#include <linux/timer.h>
20#include <linux/init.h>
21#include <linux/gpio.h>
22#include <linux/platform_device.h>
23#include <linux/serial_core.h>
24#include <linux/input.h>
25#include <linux/gpio_keys.h>
26#include <linux/sysdev.h>
27#include <linux/pwm_backlight.h>
28#include <linux/pwm.h>
29
30#include <linux/mtd/mtd.h>
31#include <linux/mtd/partitions.h>
32
33#include <linux/mmc/host.h>
34
35#include <asm/mach/arch.h>
36#include <asm/mach/map.h>
37#include <asm/mach-types.h>
38
39#include <mach/regs-gpio.h>
40#include <mach/regs-gpioj.h>
41#include <mach/h1940.h>
42#include <mach/fb.h>
43
44#include <plat/clock.h>
45#include <plat/regs-serial.h>
46#include <plat/regs-iic.h>
47#include <plat/mci.h>
48#include <plat/udc.h>
49#include <plat/nand.h>
50#include <plat/iic.h>
51#include <plat/devs.h>
52#include <plat/cpu.h>
53#include <plat/pm.h>
54#include <plat/irq.h>
55#include <plat/ts.h>
56
57#define LCD_PWM_PERIOD 192960
58#define LCD_PWM_DUTY 127353
59
60static struct map_desc rx1950_iodesc[] __initdata = {
61};
62
63static struct s3c24xx_uart_clksrc rx1950_serial_clocks[] = {
64 [0] = {
65 .name = "fclk",
66 .divisor = 0x0a,
67 .min_baud = 0,
68 .max_baud = 0,
69 },
70};
71
72static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
73 [0] = {
74 .hwport = 0,
75 .flags = 0,
76 .ucon = 0x3c5,
77 .ulcon = 0x03,
78 .ufcon = 0x51,
79 .clocks = rx1950_serial_clocks,
80 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
81 },
82 [1] = {
83 .hwport = 1,
84 .flags = 0,
85 .ucon = 0x3c5,
86 .ulcon = 0x03,
87 .ufcon = 0x51,
88 .clocks = rx1950_serial_clocks,
89 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
90 },
91 /* IR port */
92 [2] = {
93 .hwport = 2,
94 .flags = 0,
95 .ucon = 0x3c5,
96 .ulcon = 0x43,
97 .ufcon = 0xf1,
98 .clocks = rx1950_serial_clocks,
99 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
100 },
101};
102
103static struct s3c2410fb_display rx1950_display = {
104 .type = S3C2410_LCDCON1_TFT,
105 .width = 240,
106 .height = 320,
107 .xres = 240,
108 .yres = 320,
109 .bpp = 16,
110
111 .pixclock = 260000,
112 .left_margin = 10,
113 .right_margin = 20,
114 .hsync_len = 10,
115 .upper_margin = 2,
116 .lower_margin = 2,
117 .vsync_len = 2,
118
119 .lcdcon5 = S3C2410_LCDCON5_FRM565 |
120 S3C2410_LCDCON5_INVVCLK |
121 S3C2410_LCDCON5_INVVLINE |
122 S3C2410_LCDCON5_INVVFRAME |
123 S3C2410_LCDCON5_HWSWP |
124 (0x02 << 13) |
125 (0x02 << 15),
126
127};
128
129static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
130 .displays = &rx1950_display,
131 .num_displays = 1,
132 .default_display = 0,
133
134 .lpcsel = 0x02,
135 .gpccon = 0xaa9556a9,
136 .gpccon_mask = 0xffc003fc,
137 .gpcup = 0x0000ffff,
138 .gpcup_mask = 0xffffffff,
139
140 .gpdcon = 0xaa90aaa1,
141 .gpdcon_mask = 0xffc0fff0,
142 .gpdup = 0x0000fcfd,
143 .gpdup_mask = 0xffffffff,
144
145};
146
147static struct pwm_device *lcd_pwm;
148
149void rx1950_lcd_power(int enable)
150{
151 int i;
152 static int enabled;
153 if (enabled == enable)
154 return;
155 if (!enable) {
156
157 /* GPC11-GPC15->OUTPUT */
158 for (i = 11; i < 16; i++)
159 gpio_direction_output(S3C2410_GPC(i), 1);
160
161 /* Wait a bit here... */
162 mdelay(100);
163
164 /* GPD2-GPD7->OUTPUT */
165 /* GPD11-GPD15->OUTPUT */
166 /* GPD2-GPD7->1, GPD11-GPD15->1 */
167 for (i = 2; i < 8; i++)
168 gpio_direction_output(S3C2410_GPD(i), 1);
169 for (i = 11; i < 16; i++)
170 gpio_direction_output(S3C2410_GPD(i), 1);
171
172 /* Wait a bit here...*/
173 mdelay(100);
174
175 /* GPB0->OUTPUT, GPB0->0 */
176 gpio_direction_output(S3C2410_GPB(0), 0);
177
178 /* GPC1-GPC4->OUTPUT, GPC1-4->0 */
179 for (i = 1; i < 5; i++)
180 gpio_direction_output(S3C2410_GPC(i), 0);
181
182 /* GPC15-GPC11->0 */
183 for (i = 11; i < 16; i++)
184 gpio_direction_output(S3C2410_GPC(i), 0);
185
186 /* GPD15-GPD11->0, GPD2->GPD7->0 */
187 for (i = 11; i < 16; i++)
188 gpio_direction_output(S3C2410_GPD(i), 0);
189
190 for (i = 2; i < 8; i++)
191 gpio_direction_output(S3C2410_GPD(i), 0);
192
193 /* GPC6->0, GPC7->0, GPC5->0 */
194 gpio_direction_output(S3C2410_GPC(6), 0);
195 gpio_direction_output(S3C2410_GPC(7), 0);
196 gpio_direction_output(S3C2410_GPC(5), 0);
197
198 /* GPB1->OUTPUT, GPB1->0 */
199 gpio_direction_output(S3C2410_GPB(1), 0);
200 pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
201 pwm_disable(lcd_pwm);
202
203 /* GPC0->0, GPC10->0 */
204 gpio_direction_output(S3C2410_GPC(0), 0);
205 gpio_direction_output(S3C2410_GPC(10), 0);
206 } else {
207 pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
208 pwm_enable(lcd_pwm);
209
210 gpio_direction_output(S3C2410_GPC(0), 1);
211 gpio_direction_output(S3C2410_GPC(5), 1);
212
213 s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
214 gpio_direction_output(S3C2410_GPC(7), 1);
215
216 for (i = 1; i < 5; i++)
217 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
218
219 for (i = 11; i < 16; i++)
220 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
221
222 for (i = 2; i < 8; i++)
223 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
224
225 for (i = 11; i < 16; i++)
226 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
227
228 gpio_direction_output(S3C2410_GPC(10), 1);
229 gpio_direction_output(S3C2410_GPC(6), 1);
230 }
231 enabled = enable;
232}
233
234static void rx1950_bl_power(int enable)
235{
236 static int enabled;
237 if (enabled == enable)
238 return;
239 if (!enable) {
240 gpio_direction_output(S3C2410_GPB(0), 0);
241 } else {
242 /* LED driver need a "push" to power on */
243 gpio_direction_output(S3C2410_GPB(0), 1);
244 /* Warm up backlight for one period of PWM.
245 * Without this trick its almost impossible to
246 * enable backlight with low brightness value
247 */
248 ndelay(48000);
249 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
250 }
251 enabled = enable;
252}
253
254static int rx1950_backlight_init(struct device *dev)
255{
256 WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
257 lcd_pwm = pwm_request(1, "RX1950 LCD");
258 if (IS_ERR(lcd_pwm)) {
259 dev_err(dev, "Unable to request PWM for LCD power!\n");
260 return PTR_ERR(lcd_pwm);
261 }
262
263 rx1950_lcd_power(1);
264 rx1950_bl_power(1);
265
266 return 0;
267}
268
269static void rx1950_backlight_exit(struct device *dev)
270{
271 rx1950_bl_power(0);
272 rx1950_lcd_power(0);
273
274 pwm_free(lcd_pwm);
275 gpio_free(S3C2410_GPB(0));
276}
277
278
279static int rx1950_backlight_notify(struct device *dev, int brightness)
280{
281 if (!brightness) {
282 rx1950_bl_power(0);
283 rx1950_lcd_power(0);
284 } else {
285 rx1950_lcd_power(1);
286 rx1950_bl_power(1);
287 }
288 return brightness;
289}
290
291static struct platform_pwm_backlight_data rx1950_backlight_data = {
292 .pwm_id = 0,
293 .max_brightness = 24,
294 .dft_brightness = 4,
295 .pwm_period_ns = 48000,
296 .init = rx1950_backlight_init,
297 .notify = rx1950_backlight_notify,
298 .exit = rx1950_backlight_exit,
299};
300
301static struct platform_device rx1950_backlight = {
302 .name = "pwm-backlight",
303 .dev = {
304 .parent = &s3c_device_timer[0].dev,
305 .platform_data = &rx1950_backlight_data,
306 },
307};
308
309static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
310{
311 switch (power_mode) {
312 case MMC_POWER_OFF:
313 gpio_direction_output(S3C2410_GPJ(1), 0);
314 break;
315 case MMC_POWER_UP:
316 case MMC_POWER_ON:
317 gpio_direction_output(S3C2410_GPJ(1), 1);
318 break;
319 default:
320 break;
321 }
322}
323
324static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
325 .gpio_detect = S3C2410_GPF(5),
326 .gpio_wprotect = S3C2410_GPH(8),
327 .set_power = rx1950_set_mmc_power,
328 .ocr_avail = MMC_VDD_32_33,
329};
330
331static struct mtd_partition rx1950_nand_part[] = {
332 [0] = {
333 .name = "Boot0",
334 .offset = 0,
335 .size = 0x4000,
336 .mask_flags = MTD_WRITEABLE,
337 },
338 [1] = {
339 .name = "Boot1",
340 .offset = MTDPART_OFS_APPEND,
341 .size = 0x40000,
342 .mask_flags = MTD_WRITEABLE,
343 },
344 [2] = {
345 .name = "Kernel",
346 .offset = MTDPART_OFS_APPEND,
347 .size = 0x300000,
348 .mask_flags = 0,
349 },
350 [3] = {
351 .name = "Filesystem",
352 .offset = MTDPART_OFS_APPEND,
353 .size = MTDPART_SIZ_FULL,
354 .mask_flags = 0,
355 },
356};
357
358static struct s3c2410_nand_set rx1950_nand_sets[] = {
359 [0] = {
360 .name = "Internal",
361 .nr_chips = 1,
362 .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
363 .partitions = rx1950_nand_part,
364 },
365};
366
367static struct s3c2410_platform_nand rx1950_nand_info = {
368 .tacls = 25,
369 .twrph0 = 50,
370 .twrph1 = 15,
371 .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
372 .sets = rx1950_nand_sets,
373};
374
375static void rx1950_udc_pullup(enum s3c2410_udc_cmd_e cmd)
376{
377 switch (cmd) {
378 case S3C2410_UDC_P_ENABLE:
379 gpio_direction_output(S3C2410_GPJ(5), 1);
380 break;
381 case S3C2410_UDC_P_DISABLE:
382 gpio_direction_output(S3C2410_GPJ(5), 0);
383 break;
384 case S3C2410_UDC_P_RESET:
385 break;
386 default:
387 break;
388 }
389}
390
391static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
392 .udc_command = rx1950_udc_pullup,
393 .vbus_pin = S3C2410_GPG(5),
394 .vbus_pin_inverted = 1,
395};
396
397static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
398 .delay = 10000,
399 .presc = 49,
400 .oversampling_shift = 3,
401};
402
403static struct gpio_keys_button rx1950_gpio_keys_table[] = {
404 {
405 .code = KEY_POWER,
406 .gpio = S3C2410_GPF(0),
407 .active_low = 1,
408 .desc = "Power button",
409 .wakeup = 1,
410 },
411 {
412 .code = KEY_F5,
413 .gpio = S3C2410_GPF(7),
414 .active_low = 1,
415 .desc = "Record button",
416 },
417 {
418 .code = KEY_F1,
419 .gpio = S3C2410_GPG(0),
420 .active_low = 1,
421 .desc = "Calendar button",
422 },
423 {
424 .code = KEY_F2,
425 .gpio = S3C2410_GPG(2),
426 .active_low = 1,
427 .desc = "Contacts button",
428 },
429 {
430 .code = KEY_F3,
431 .gpio = S3C2410_GPG(3),
432 .active_low = 1,
433 .desc = "Mail button",
434 },
435 {
436 .code = KEY_F4,
437 .gpio = S3C2410_GPG(7),
438 .active_low = 1,
439 .desc = "WLAN button",
440 },
441 {
442 .code = KEY_LEFT,
443 .gpio = S3C2410_GPG(10),
444 .active_low = 1,
445 .desc = "Left button",
446 },
447 {
448 .code = KEY_RIGHT,
449 .gpio = S3C2410_GPG(11),
450 .active_low = 1,
451 .desc = "Right button",
452 },
453 {
454 .code = KEY_UP,
455 .gpio = S3C2410_GPG(4),
456 .active_low = 1,
457 .desc = "Up button",
458 },
459 {
460 .code = KEY_DOWN,
461 .gpio = S3C2410_GPG(6),
462 .active_low = 1,
463 .desc = "Down button",
464 },
465 {
466 .code = KEY_ENTER,
467 .gpio = S3C2410_GPG(9),
468 .active_low = 1,
469 .desc = "Ok button"
470 },
471};
472
473static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
474 .buttons = rx1950_gpio_keys_table,
475 .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
476};
477
478static struct platform_device rx1950_device_gpiokeys = {
479 .name = "gpio-keys",
480 .dev.platform_data = &rx1950_gpio_keys_data,
481};
482
483static struct s3c2410_platform_i2c rx1950_i2c_data = {
484 .flags = 0,
485 .slave_addr = 0x42,
486 .frequency = 400 * 1000,
487 .sda_delay = S3C2410_IICLC_SDA_DELAY5 | S3C2410_IICLC_FILTER_ON,
488};
489
490static struct platform_device *rx1950_devices[] __initdata = {
491 &s3c_device_lcd,
492 &s3c_device_wdt,
493 &s3c_device_i2c0,
494 &s3c_device_iis,
495 &s3c_device_usbgadget,
496 &s3c_device_rtc,
497 &s3c_device_nand,
498 &s3c_device_sdi,
499 &s3c_device_adc,
500 &s3c_device_ts,
501 &s3c_device_timer[0],
502 &s3c_device_timer[1],
503 &rx1950_backlight,
504 &rx1950_device_gpiokeys,
505};
506
507static struct clk *rx1950_clocks[] __initdata = {
508 &s3c24xx_clkout0,
509 &s3c24xx_clkout1,
510};
511
512static void __init rx1950_map_io(void)
513{
514 s3c24xx_clkout0.parent = &clk_h;
515 s3c24xx_clkout1.parent = &clk_f;
516
517 s3c24xx_register_clocks(rx1950_clocks, ARRAY_SIZE(rx1950_clocks));
518
519 s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
520 s3c24xx_init_clocks(16934000);
521 s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
522
523 /* setup PM */
524
525#ifdef CONFIG_PM_H1940
526 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
527#endif
528
529 s3c_pm_init();
530}
531
532static void __init rx1950_init_machine(void)
533{
534 int i;
535
536 s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
537 s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
538 s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
539 s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
540 s3c_i2c0_set_platdata(&rx1950_i2c_data);
541 s3c_nand_set_platdata(&rx1950_nand_info);
542
543 /* Turn off suspend on both USB ports, and switch the
544 * selectable USB port to USB device mode. */
545 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
546 S3C2410_MISCCR_USBSUSPND0 |
547 S3C2410_MISCCR_USBSUSPND1, 0x0);
548
549 WARN_ON(gpio_request(S3C2410_GPJ(5), "UDC pullup"));
550 gpio_direction_output(S3C2410_GPJ(5), 0);
551
552 /* mmc power is disabled by default */
553 WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
554 gpio_direction_output(S3C2410_GPJ(1), 0);
555
556 for (i = 0; i < 8; i++)
557 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
558
559 for (i = 10; i < 16; i++)
560 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
561
562 for (i = 2; i < 8; i++)
563 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
564
565 for (i = 11; i < 16; i++)
566 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
567
568 WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
569
570 platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
571}
572
573MACHINE_START(RX1950, "HP iPAQ RX1950")
574 /* Maintainers: Vasily Khoruzhick */
575 .phys_io = S3C2410_PA_UART,
576 .io_pg_offst = (((u32) S3C24XX_VA_UART) >> 18) & 0xfffc,
577 .boot_params = S3C2410_SDRAM_PA + 0x100,
578 .map_io = rx1950_map_io,
579 .init_irq = s3c24xx_init_irq,
580 .init_machine = rx1950_init_machine,
581 .timer = &s3c24xx_timer,
582MACHINE_END
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