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[ARM] pxa/corgi: use generic GPIO API for SCOOP GPIOs
[mirror_ubuntu-hirsute-kernel.git] / arch / arm / mach-pxa / corgi.c
CommitLineData
1da177e4
LT
1/*
2 * Support for Sharp SL-C7xx PDAs
3 * Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky)
4 *
5 * Copyright (c) 2004-2005 Richard Purdie
6 *
7 * Based on Sharp's 2.4 kernel patches/lubbock.c
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 */
14
15#include <linux/kernel.h>
16#include <linux/init.h>
d052d1be 17#include <linux/platform_device.h>
1da177e4
LT
18#include <linux/major.h>
19#include <linux/fs.h>
20#include <linux/interrupt.h>
21#include <linux/mmc/host.h>
74617fb6 22#include <linux/pm.h>
9d708752 23#include <linux/gpio.h>
c3f8f650 24#include <linux/backlight.h>
edb403fb
EM
25#include <linux/spi/spi.h>
26#include <linux/spi/ads7846.h>
27#include <linux/spi/corgi_lcd.h>
ca4d6cfc 28#include <video/w100fb.h>
1da177e4
LT
29
30#include <asm/setup.h>
31#include <asm/memory.h>
32#include <asm/mach-types.h>
a09e64fb 33#include <mach/hardware.h>
1da177e4
LT
34#include <asm/irq.h>
35#include <asm/io.h>
74617fb6 36#include <asm/system.h>
1da177e4
LT
37
38#include <asm/mach/arch.h>
39#include <asm/mach/map.h>
40#include <asm/mach/irq.h>
41
a09e64fb
RK
42#include <mach/pxa-regs.h>
43#include <mach/pxa2xx-regs.h>
9ae808d8 44#include <mach/mfp-pxa25x.h>
f8787fdc 45#include <mach/i2c.h>
a09e64fb
RK
46#include <mach/irda.h>
47#include <mach/mmc.h>
48#include <mach/udc.h>
edb403fb 49#include <mach/pxa2xx_spi.h>
a09e64fb
RK
50#include <mach/corgi.h>
51#include <mach/sharpsl.h>
1da177e4
LT
52
53#include <asm/mach/sharpsl_param.h>
54#include <asm/hardware/scoop.h>
1da177e4
LT
55
56#include "generic.h"
46c41e62 57#include "devices.h"
50a5de44 58#include "sharpsl.h"
1da177e4 59
9ae808d8
EM
60static unsigned long corgi_pin_config[] __initdata = {
61 /* Static Memory I/O */
62 GPIO78_nCS_2, /* w100fb */
63 GPIO80_nCS_4, /* scoop */
64
65 /* SSP1 */
66 GPIO23_SSP1_SCLK,
67 GPIO25_SSP1_TXD,
68 GPIO26_SSP1_RXD,
69 GPIO24_GPIO, /* CORGI_GPIO_ADS7846_CS - SFRM as chip select */
70
71 /* I2S */
72 GPIO28_I2S_BITCLK_OUT,
73 GPIO29_I2S_SDATA_IN,
74 GPIO30_I2S_SDATA_OUT,
75 GPIO31_I2S_SYNC,
76 GPIO32_I2S_SYSCLK,
77
78 /* Infra-Red */
79 GPIO47_FICP_TXD,
80 GPIO46_FICP_RXD,
81
82 /* FFUART */
83 GPIO40_FFUART_DTR,
84 GPIO41_FFUART_RTS,
85 GPIO39_FFUART_TXD,
86 GPIO37_FFUART_DSR,
87 GPIO34_FFUART_RXD,
88 GPIO35_FFUART_CTS,
89
90 /* PC Card */
91 GPIO48_nPOE,
92 GPIO49_nPWE,
93 GPIO50_nPIOR,
94 GPIO51_nPIOW,
95 GPIO52_nPCE_1,
96 GPIO53_nPCE_2,
97 GPIO54_nPSKTSEL,
98 GPIO55_nPREG,
99 GPIO56_nPWAIT,
100 GPIO57_nIOIS16,
101
102 /* MMC */
103 GPIO6_MMC_CLK,
104 GPIO8_MMC_CS0,
105
106 /* GPIO */
107 GPIO9_GPIO, /* CORGI_GPIO_nSD_DETECT */
108 GPIO7_GPIO, /* CORGI_GPIO_nSD_WP */
109 GPIO33_GPIO, /* CORGI_GPIO_SD_PWR */
110 GPIO22_GPIO, /* CORGI_GPIO_IR_ON */
111 GPIO44_GPIO, /* CORGI_GPIO_HSYNC */
112
113 GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
114};
1da177e4
LT
115
116/*
117 * Corgi SCOOP Device
118 */
119static struct resource corgi_scoop_resources[] = {
120 [0] = {
121 .start = 0x10800000,
122 .end = 0x10800fff,
123 .flags = IORESOURCE_MEM,
124 },
125};
126
127static struct scoop_config corgi_scoop_setup = {
128 .io_dir = CORGI_SCOOP_IO_DIR,
129 .io_out = CORGI_SCOOP_IO_OUT,
6168cda9 130 .gpio_base = CORGI_SCOOP_GPIO_BASE,
1da177e4
LT
131};
132
a63ae442
RP
133struct platform_device corgiscoop_device = {
134 .name = "sharp-scoop",
135 .id = -1,
136 .dev = {
137 .platform_data = &corgi_scoop_setup,
138 },
139 .num_resources = ARRAY_SIZE(corgi_scoop_resources),
140 .resource = corgi_scoop_resources,
141};
142
0ce7625f
RP
143static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
144{
145 .dev = &corgiscoop_device.dev,
146 .irq = CORGI_IRQ_GPIO_CF_IRQ,
147 .cd_irq = CORGI_IRQ_GPIO_CF_CD,
148 .cd_irq_str = "PCMCIA0 CD",
149},
150};
151
a63ae442
RP
152static struct scoop_pcmcia_config corgi_pcmcia_config = {
153 .devs = &corgi_pcmcia_scoop[0],
154 .num_devs = 1,
1da177e4
LT
155};
156
a63ae442
RP
157EXPORT_SYMBOL(corgiscoop_device);
158
ca4d6cfc
RP
159static struct w100_mem_info corgi_fb_mem = {
160 .ext_cntl = 0x00040003,
161 .sdram_mode_reg = 0x00650021,
162 .ext_timing_cntl = 0x10002a4a,
163 .io_cntl = 0x7ff87012,
164 .size = 0x1fffff,
165};
166
167static struct w100_gen_regs corgi_fb_regs = {
168 .lcd_format = 0x00000003,
169 .lcdd_cntl1 = 0x01CC0000,
170 .lcdd_cntl2 = 0x0003FFFF,
171 .genlcd_cntl1 = 0x00FFFF0D,
172 .genlcd_cntl2 = 0x003F3003,
173 .genlcd_cntl3 = 0x000102aa,
174};
175
176static struct w100_gpio_regs corgi_fb_gpio = {
177 .init_data1 = 0x000000bf,
178 .init_data2 = 0x00000000,
179 .gpio_dir1 = 0x00000000,
180 .gpio_oe1 = 0x03c0feff,
181 .gpio_dir2 = 0x00000000,
182 .gpio_oe2 = 0x00000000,
183};
184
185static struct w100_mode corgi_fb_modes[] = {
186{
187 .xres = 480,
188 .yres = 640,
189 .left_margin = 0x56,
190 .right_margin = 0x55,
191 .upper_margin = 0x03,
192 .lower_margin = 0x00,
193 .crtc_ss = 0x82360056,
194 .crtc_ls = 0xA0280000,
195 .crtc_gs = 0x80280028,
196 .crtc_vpos_gs = 0x02830002,
197 .crtc_rev = 0x00400008,
198 .crtc_dclk = 0xA0000000,
199 .crtc_gclk = 0x8015010F,
200 .crtc_goe = 0x80100110,
201 .crtc_ps1_active = 0x41060010,
202 .pll_freq = 75,
203 .fast_pll_freq = 100,
204 .sysclk_src = CLK_SRC_PLL,
205 .sysclk_divider = 0,
206 .pixclk_src = CLK_SRC_PLL,
207 .pixclk_divider = 2,
208 .pixclk_divider_rotated = 6,
209},{
210 .xres = 240,
211 .yres = 320,
212 .left_margin = 0x27,
213 .right_margin = 0x2e,
214 .upper_margin = 0x01,
215 .lower_margin = 0x00,
216 .crtc_ss = 0x81170027,
217 .crtc_ls = 0xA0140000,
218 .crtc_gs = 0xC0140014,
219 .crtc_vpos_gs = 0x00010141,
220 .crtc_rev = 0x00400008,
221 .crtc_dclk = 0xA0000000,
222 .crtc_gclk = 0x8015010F,
223 .crtc_goe = 0x80100110,
224 .crtc_ps1_active = 0x41060010,
225 .pll_freq = 0,
226 .fast_pll_freq = 0,
227 .sysclk_src = CLK_SRC_XTAL,
228 .sysclk_divider = 0,
229 .pixclk_src = CLK_SRC_XTAL,
230 .pixclk_divider = 1,
231 .pixclk_divider_rotated = 1,
232},
233
234};
235
236static struct w100fb_mach_info corgi_fb_info = {
ca4d6cfc
RP
237 .init_mode = INIT_MODE_ROTATED,
238 .mem = &corgi_fb_mem,
239 .regs = &corgi_fb_regs,
240 .modelist = &corgi_fb_modes[0],
241 .num_modes = 2,
242 .gpio = &corgi_fb_gpio,
243 .xtal_freq = 12500000,
244 .xtal_dbl = 0,
245};
246
247static struct resource corgi_fb_resources[] = {
248 [0] = {
249 .start = 0x08000000,
250 .end = 0x08ffffff,
251 .flags = IORESOURCE_MEM,
252 },
253};
254
255static struct platform_device corgifb_device = {
256 .name = "w100fb",
257 .id = -1,
258 .num_resources = ARRAY_SIZE(corgi_fb_resources),
259 .resource = corgi_fb_resources,
260 .dev = {
261 .platform_data = &corgi_fb_info,
ca4d6cfc
RP
262 },
263
264};
265
f7ceff34
RP
266/*
267 * Corgi Keyboard Device
268 */
269static struct platform_device corgikbd_device = {
270 .name = "corgi-keyboard",
271 .id = -1,
272};
273
274
3179108d
RP
275/*
276 * Corgi LEDs
277 */
278static struct platform_device corgiled_device = {
279 .name = "corgi-led",
280 .id = -1,
281};
282
1da177e4
LT
283/*
284 * MMC/SD Device
285 *
aa6c2e79 286 * The card detect interrupt isn't debounced so we delay it by 250ms
1da177e4
LT
287 * to give the card a chance to fully insert/eject.
288 */
aa6c2e79 289static struct pxamci_platform_data corgi_mci_platform_data;
1da177e4 290
40220c1a 291static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data)
1da177e4
LT
292{
293 int err;
294
9d708752
EM
295 err = gpio_request(CORGI_GPIO_nSD_DETECT, "nSD_DETECT");
296 if (err)
297 goto err_out;
1da177e4 298
9d708752 299 err = gpio_request(CORGI_GPIO_nSD_WP, "nSD_WP");
2687bd38 300 if (err)
9d708752
EM
301 goto err_free_1;
302
303 err = gpio_request(CORGI_GPIO_SD_PWR, "SD_PWR");
304 if (err)
305 goto err_free_2;
306
307 gpio_direction_input(CORGI_GPIO_nSD_DETECT);
308 gpio_direction_input(CORGI_GPIO_nSD_WP);
309 gpio_direction_output(CORGI_GPIO_SD_PWR, 0);
1da177e4 310
9d708752
EM
311 corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
312
313 err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
314 IRQF_DISABLED | IRQF_TRIGGER_RISING |
315 IRQF_TRIGGER_FALLING,
316 "MMC card detect", data);
317 if (err) {
318 pr_err("%s: MMC/SD: can't request MMC card detect IRQ\n",
319 __func__);
320 goto err_free_3;
321 }
322 return 0;
323
324err_free_3:
325 gpio_free(CORGI_GPIO_SD_PWR);
326err_free_2:
327 gpio_free(CORGI_GPIO_nSD_WP);
328err_free_1:
329 gpio_free(CORGI_GPIO_nSD_DETECT);
330err_out:
2687bd38 331 return err;
1da177e4
LT
332}
333
334static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
335{
336 struct pxamci_platform_data* p_d = dev->platform_data;
337
9d708752 338 gpio_set_value(CORGI_GPIO_SD_PWR, ((1 << vdd) & p_d->ocr_mask));
1da177e4
LT
339}
340
3870ee8c
RP
341static int corgi_mci_get_ro(struct device *dev)
342{
9d708752 343 return gpio_get_value(CORGI_GPIO_nSD_WP);
3870ee8c
RP
344}
345
1da177e4
LT
346static void corgi_mci_exit(struct device *dev, void *data)
347{
348 free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
9d708752
EM
349 gpio_free(CORGI_GPIO_SD_PWR);
350 gpio_free(CORGI_GPIO_nSD_WP);
351 gpio_free(CORGI_GPIO_nSD_DETECT);
1da177e4
LT
352}
353
354static struct pxamci_platform_data corgi_mci_platform_data = {
355 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
356 .init = corgi_mci_init,
3870ee8c 357 .get_ro = corgi_mci_get_ro,
1da177e4
LT
358 .setpower = corgi_mci_setpower,
359 .exit = corgi_mci_exit,
360};
361
362
ca1140b5
RP
363/*
364 * Irda
365 */
366static void corgi_irda_transceiver_mode(struct device *dev, int mode)
367{
9d708752 368 gpio_set_value(CORGI_GPIO_IR_ON, mode & IR_OFF);
0fc3ff31 369 pxa2xx_transceiver_mode(dev, mode);
ca1140b5
RP
370}
371
9d708752
EM
372static int corgi_irda_startup(struct device *dev)
373{
374 int err;
375
376 err = gpio_request(CORGI_GPIO_IR_ON, "IR_ON");
377 if (err)
378 return err;
379
380 gpio_direction_output(CORGI_GPIO_IR_ON, 1);
381 return 0;
382}
383
384static void corgi_irda_shutdown(struct device *dev)
385{
386 gpio_free(CORGI_GPIO_IR_ON);
387}
388
ca1140b5 389static struct pxaficp_platform_data corgi_ficp_platform_data = {
9d708752
EM
390 .transceiver_cap = IR_SIRMODE | IR_OFF,
391 .transceiver_mode = corgi_irda_transceiver_mode,
392 .startup = corgi_irda_startup,
393 .shutdown = corgi_irda_shutdown,
ca1140b5
RP
394};
395
f7ceff34 396
1da177e4
LT
397/*
398 * USB Device Controller
399 */
1da177e4
LT
400static struct pxa2xx_udc_mach_info udc_info __initdata = {
401 /* no connect GPIO; corgi can't tell connection status */
b2bbb20b 402 .gpio_pullup = CORGI_GPIO_USB_PULLUP,
1da177e4
LT
403};
404
edb403fb
EM
405#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MASTER)
406static struct pxa2xx_spi_master corgi_spi_info = {
407 .num_chipselect = 3,
408};
409
410static struct ads7846_platform_data corgi_ads7846_info = {
411 .model = 7846,
412 .vref_delay_usecs = 100,
413 .x_plate_ohms = 419,
414 .y_plate_ohms = 486,
415 .gpio_pendown = CORGI_GPIO_TP_INT,
416};
417
418static void corgi_ads7846_cs(u32 command)
419{
420 gpio_set_value(CORGI_GPIO_ADS7846_CS, !(command == PXA2XX_CS_ASSERT));
421}
422
423static struct pxa2xx_spi_chip corgi_ads7846_chip = {
424 .cs_control = corgi_ads7846_cs,
425};
426
427static void corgi_notify_intensity(int intensity)
428{
429 /* Bit 5 is via SCOOP */
6168cda9 430 gpio_set_value(CORGI_GPIO_BACKLIGHT_CONT, !!(intensity & 0x0020));
edb403fb
EM
431}
432
433static void corgi_bl_kick_battery(void)
434{
435 void (*kick_batt)(void);
436
437 kick_batt = symbol_get(sharpsl_battery_kick);
438 if (kick_batt) {
439 kick_batt();
440 symbol_put(sharpsl_battery_kick);
441 }
442}
443
444static struct corgi_lcd_platform_data corgi_lcdcon_info = {
445 .init_mode = CORGI_LCD_MODE_VGA,
446 .max_intensity = 0x2f,
447 .default_intensity = 0x1f,
448 .limit_mask = 0x0b,
449 .notify = corgi_notify_intensity,
450 .kick_battery = corgi_bl_kick_battery,
451};
452
453static void corgi_lcdcon_cs(u32 command)
454{
455 gpio_set_value(CORGI_GPIO_LCDCON_CS, !(command == PXA2XX_CS_ASSERT));
456}
457
458static struct pxa2xx_spi_chip corgi_lcdcon_chip = {
459 .cs_control = corgi_lcdcon_cs,
460};
461
462static void corgi_max1111_cs(u32 command)
463{
464 gpio_set_value(CORGI_GPIO_MAX1111_CS, !(command == PXA2XX_CS_ASSERT));
465}
466
467static struct pxa2xx_spi_chip corgi_max1111_chip = {
468 .cs_control = corgi_max1111_cs,
469};
470
471static struct spi_board_info corgi_spi_devices[] = {
472 {
473 .modalias = "ads7846",
474 .max_speed_hz = 1200000,
475 .bus_num = 1,
476 .chip_select = 0,
477 .platform_data = &corgi_ads7846_info,
478 .controller_data= &corgi_ads7846_chip,
479 .irq = gpio_to_irq(CORGI_GPIO_TP_INT),
480 }, {
481 .modalias = "corgi-lcd",
482 .max_speed_hz = 50000,
483 .bus_num = 1,
484 .chip_select = 1,
485 .platform_data = &corgi_lcdcon_info,
486 .controller_data= &corgi_lcdcon_chip,
487 }, {
488 .modalias = "max1111",
489 .max_speed_hz = 450000,
490 .bus_num = 1,
491 .chip_select = 2,
492 .controller_data= &corgi_max1111_chip,
493 },
494};
495
496static void __init corgi_init_spi(void)
497{
498 int err;
499
500 err = gpio_request(CORGI_GPIO_ADS7846_CS, "ADS7846_CS");
501 if (err)
502 return;
503
504 err = gpio_request(CORGI_GPIO_LCDCON_CS, "LCDCON_CS");
505 if (err)
506 goto err_free_1;
507
508 err = gpio_request(CORGI_GPIO_MAX1111_CS, "MAX1111_CS");
509 if (err)
510 goto err_free_2;
511
512 gpio_direction_output(CORGI_GPIO_ADS7846_CS, 1);
513 gpio_direction_output(CORGI_GPIO_LCDCON_CS, 1);
514 gpio_direction_output(CORGI_GPIO_MAX1111_CS, 1);
515
516 pxa2xx_set_spi_info(1, &corgi_spi_info);
517 spi_register_board_info(ARRAY_AND_SIZE(corgi_spi_devices));
518 return;
519
520err_free_2:
521 gpio_free(CORGI_GPIO_LCDCON_CS);
522err_free_1:
523 gpio_free(CORGI_GPIO_ADS7846_CS);
524}
525#else
526static inline void corgi_init_spi(void) {}
527#endif
1da177e4
LT
528
529static struct platform_device *devices[] __initdata = {
530 &corgiscoop_device,
1da177e4 531 &corgifb_device,
f7ceff34 532 &corgikbd_device,
3179108d 533 &corgiled_device,
1da177e4
LT
534};
535
74617fb6
RP
536static void corgi_poweroff(void)
537{
74617fb6
RP
538 if (!machine_is_corgi())
539 /* Green LED off tells the bootloader to halt */
6168cda9
EM
540 gpio_set_value(CORGI_GPIO_LED_GREEN, 0);
541
74617fb6
RP
542 arm_machine_restart('h');
543}
544
545static void corgi_restart(char mode)
546{
74617fb6
RP
547 if (!machine_is_corgi())
548 /* Green LED on tells the bootloader to reboot */
6168cda9
EM
549 gpio_set_value(CORGI_GPIO_LED_GREEN, 1);
550
74617fb6
RP
551 arm_machine_restart('h');
552}
553
1da177e4
LT
554static void __init corgi_init(void)
555{
74617fb6
RP
556 pm_power_off = corgi_poweroff;
557 arm_pm_restart = corgi_restart;
558
fdce05bb
RP
559 /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
560 PCFR |= PCFR_OPDE;
561
9ae808d8 562 pxa2xx_mfp_config(ARRAY_AND_SIZE(corgi_pin_config));
50a5de44 563
edb403fb 564 corgi_init_spi();
ca1140b5 565
1da177e4
LT
566 pxa_set_udc_info(&udc_info);
567 pxa_set_mci_info(&corgi_mci_platform_data);
ca1140b5 568 pxa_set_ficp_info(&corgi_ficp_platform_data);
f8787fdc 569 pxa_set_i2c_info(NULL);
1da177e4 570
a63ae442 571 platform_scoop_config = &corgi_pcmcia_config;
0ce7625f 572
1da177e4
LT
573 platform_add_devices(devices, ARRAY_SIZE(devices));
574}
575
576static void __init fixup_corgi(struct machine_desc *desc,
577 struct tag *tags, char **cmdline, struct meminfo *mi)
578{
579 sharpsl_save_param();
580 mi->nr_banks=1;
581 mi->bank[0].start = 0xa0000000;
582 mi->bank[0].node = 0;
583 if (machine_is_corgi())
584 mi->bank[0].size = (32*1024*1024);
585 else
586 mi->bank[0].size = (64*1024*1024);
587}
588
1da177e4
LT
589#ifdef CONFIG_MACH_CORGI
590MACHINE_START(CORGI, "SHARP Corgi")
e9dea0c6 591 .phys_io = 0x40000000,
68070bde 592 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
e9dea0c6 593 .fixup = fixup_corgi,
fdce05bb 594 .map_io = pxa_map_io,
cd49104d 595 .init_irq = pxa25x_init_irq,
e9dea0c6
RK
596 .init_machine = corgi_init,
597 .timer = &pxa_timer,
1da177e4
LT
598MACHINE_END
599#endif
600
601#ifdef CONFIG_MACH_SHEPHERD
602MACHINE_START(SHEPHERD, "SHARP Shepherd")
e9dea0c6 603 .phys_io = 0x40000000,
68070bde 604 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
e9dea0c6 605 .fixup = fixup_corgi,
fdce05bb 606 .map_io = pxa_map_io,
cd49104d 607 .init_irq = pxa25x_init_irq,
e9dea0c6
RK
608 .init_machine = corgi_init,
609 .timer = &pxa_timer,
1da177e4
LT
610MACHINE_END
611#endif
612
613#ifdef CONFIG_MACH_HUSKY
614MACHINE_START(HUSKY, "SHARP Husky")
e9dea0c6 615 .phys_io = 0x40000000,
68070bde 616 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
e9dea0c6 617 .fixup = fixup_corgi,
fdce05bb 618 .map_io = pxa_map_io,
cd49104d 619 .init_irq = pxa25x_init_irq,
e9dea0c6
RK
620 .init_machine = corgi_init,
621 .timer = &pxa_timer,
1da177e4
LT
622MACHINE_END
623#endif
624