1 /*
2 * linux/arch/arm/mach-pxa/poodle.c
3 *
4 * Support for the SHARP Poodle Board.
5 *
6 * Based on:
7 * linux/arch/arm/mach-pxa/lubbock.c Author: Nicolas Pitre
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 * Change Log
14 * 12-Dec-2002 Sharp Corporation for Poodle
15 * John Lenz <lenz@cs.wisc.edu> updates to 2.6
16 */
17 #include <linux/kernel.h>
18 #include <linux/init.h>
19 #include <linux/export.h>
20 #include <linux/platform_device.h>
21 #include <linux/fb.h>
22 #include <linux/pm.h>
23 #include <linux/delay.h>
24 #include <linux/mtd/physmap.h>
25 #include <linux/gpio.h>
26 #include <linux/i2c.h>
27 #include <linux/platform_data/i2c-pxa.h>
28 #include <linux/regulator/machine.h>
29 #include <linux/spi/spi.h>
30 #include <linux/spi/ads7846.h>
31 #include <linux/spi/pxa2xx_spi.h>
32 #include <linux/mtd/sharpsl.h>
33 #include <linux/memblock.h>
34
35 #include <mach/hardware.h>
36 #include <asm/mach-types.h>
37 #include <asm/irq.h>
38 #include <asm/setup.h>
39
40 #include <asm/mach/arch.h>
41 #include <asm/mach/map.h>
42 #include <asm/mach/irq.h>
43
44 #include "pxa25x.h"
45 #include <linux/platform_data/mmc-pxamci.h>
46 #include "udc.h"
47 #include <linux/platform_data/irda-pxaficp.h>
48 #include <mach/poodle.h>
49 #include <linux/platform_data/video-pxafb.h>
50
51 #include <asm/hardware/scoop.h>
52 #include <asm/hardware/locomo.h>
53 #include <asm/mach/sharpsl_param.h>
54
55 #include "generic.h"
56 #include "devices.h"
57
58 static unsigned long poodle_pin_config[] __initdata = {
59 /* I/O */
60 GPIO79_nCS_3,
61 GPIO80_nCS_4,
62 GPIO18_RDY,
63
64 /* Clock */
65 GPIO12_32KHz,
66
67 /* SSP1 */
68 GPIO23_SSP1_SCLK,
69 GPIO25_SSP1_TXD,
70 GPIO26_SSP1_RXD,
71 GPIO24_GPIO, /* POODLE_GPIO_TP_CS - SFRM as chip select */
72
73 /* I2S */
74 GPIO28_I2S_BITCLK_OUT,
75 GPIO29_I2S_SDATA_IN,
76 GPIO30_I2S_SDATA_OUT,
77 GPIO31_I2S_SYNC,
78 GPIO32_I2S_SYSCLK,
79
80 /* Infra-Red */
81 GPIO47_FICP_TXD,
82 GPIO46_FICP_RXD,
83
84 /* FFUART */
85 GPIO40_FFUART_DTR,
86 GPIO41_FFUART_RTS,
87 GPIO39_FFUART_TXD,
88 GPIO37_FFUART_DSR,
89 GPIO34_FFUART_RXD,
90 GPIO35_FFUART_CTS,
91
92 /* LCD */
93 GPIOxx_LCD_TFT_16BPP,
94
95 /* PC Card */
96 GPIO48_nPOE,
97 GPIO49_nPWE,
98 GPIO50_nPIOR,
99 GPIO51_nPIOW,
100 GPIO52_nPCE_1,
101 GPIO53_nPCE_2,
102 GPIO54_nPSKTSEL,
103 GPIO55_nPREG,
104 GPIO56_nPWAIT,
105 GPIO57_nIOIS16,
106
107 /* MMC */
108 GPIO6_MMC_CLK,
109 GPIO8_MMC_CS0,
110
111 /* GPIO */
112 GPIO9_GPIO, /* POODLE_GPIO_nSD_DETECT */
113 GPIO7_GPIO, /* POODLE_GPIO_nSD_WP */
114 GPIO3_GPIO, /* POODLE_GPIO_SD_PWR */
115 GPIO33_GPIO, /* POODLE_GPIO_SD_PWR1 */
116
117 GPIO20_GPIO, /* POODLE_GPIO_USB_PULLUP */
118 GPIO22_GPIO, /* POODLE_GPIO_IR_ON */
119 };
120
121 static struct resource poodle_scoop_resources[] = {
122 [0] = {
123 .start = 0x10800000,
124 .end = 0x10800fff,
125 .flags = IORESOURCE_MEM,
126 },
127 };
128
129 static struct scoop_config poodle_scoop_setup = {
130 .io_dir = POODLE_SCOOP_IO_DIR,
131 .io_out = POODLE_SCOOP_IO_OUT,
132 .gpio_base = POODLE_SCOOP_GPIO_BASE,
133 };
134
135 struct platform_device poodle_scoop_device = {
136 .name = "sharp-scoop",
137 .id = -1,
138 .dev = {
139 .platform_data = &poodle_scoop_setup,
140 },
141 .num_resources = ARRAY_SIZE(poodle_scoop_resources),
142 .resource = poodle_scoop_resources,
143 };
144
145 static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
146 {
147 .dev = &poodle_scoop_device.dev,
148 .irq = POODLE_IRQ_GPIO_CF_IRQ,
149 .cd_irq = POODLE_IRQ_GPIO_CF_CD,
150 .cd_irq_str = "PCMCIA0 CD",
151 },
152 };
153
154 static struct scoop_pcmcia_config poodle_pcmcia_config = {
155 .devs = &poodle_pcmcia_scoop[0],
156 .num_devs = 1,
157 };
158
159 EXPORT_SYMBOL(poodle_scoop_device);
160
161
162 static struct platform_device poodle_audio_device = {
163 .name = "poodle-audio",
164 .id = -1,
165 };
166
167 /* LoCoMo device */
168 static struct resource locomo_resources[] = {
169 [0] = {
170 .start = 0x10000000,
171 .end = 0x10001fff,
172 .flags = IORESOURCE_MEM,
173 },
174 [1] = {
175 .start = PXA_GPIO_TO_IRQ(10),
176 .end = PXA_GPIO_TO_IRQ(10),
177 .flags = IORESOURCE_IRQ,
178 },
179 };
180
181 static struct locomo_platform_data locomo_info = {
182 .irq_base = IRQ_BOARD_START,
183 };
184
185 struct platform_device poodle_locomo_device = {
186 .name = "locomo",
187 .id = 0,
188 .num_resources = ARRAY_SIZE(locomo_resources),
189 .resource = locomo_resources,
190 .dev = {
191 .platform_data = &locomo_info,
192 },
193 };
194
195 EXPORT_SYMBOL(poodle_locomo_device);
196
197 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
198 static struct pxa2xx_spi_master poodle_spi_info = {
199 .num_chipselect = 1,
200 };
201
202 static struct ads7846_platform_data poodle_ads7846_info = {
203 .model = 7846,
204 .vref_delay_usecs = 100,
205 .x_plate_ohms = 419,
206 .y_plate_ohms = 486,
207 .gpio_pendown = POODLE_GPIO_TP_INT,
208 };
209
210 static struct pxa2xx_spi_chip poodle_ads7846_chip = {
211 .gpio_cs = POODLE_GPIO_TP_CS,
212 };
213
214 static struct spi_board_info poodle_spi_devices[] = {
215 {
216 .modalias = "ads7846",
217 .max_speed_hz = 10000,
218 .bus_num = 1,
219 .platform_data = &poodle_ads7846_info,
220 .controller_data= &poodle_ads7846_chip,
221 .irq = PXA_GPIO_TO_IRQ(POODLE_GPIO_TP_INT),
222 },
223 };
224
poodle_init_spi(void)225 static void __init poodle_init_spi(void)
226 {
227 pxa2xx_set_spi_info(1, &poodle_spi_info);
228 spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
229 }
230 #else
poodle_init_spi(void)231 static inline void poodle_init_spi(void) {}
232 #endif
233
234 /*
235 * MMC/SD Device
236 *
237 * The card detect interrupt isn't debounced so we delay it by 250ms
238 * to give the card a chance to fully insert/eject.
239 */
poodle_mci_init(struct device * dev,irq_handler_t poodle_detect_int,void * data)240 static int poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int, void *data)
241 {
242 int err;
243
244 err = gpio_request(POODLE_GPIO_SD_PWR, "SD_PWR");
245 if (err)
246 goto err_free_2;
247
248 err = gpio_request(POODLE_GPIO_SD_PWR1, "SD_PWR1");
249 if (err)
250 goto err_free_3;
251
252 gpio_direction_output(POODLE_GPIO_SD_PWR, 0);
253 gpio_direction_output(POODLE_GPIO_SD_PWR1, 0);
254
255 return 0;
256
257 err_free_3:
258 gpio_free(POODLE_GPIO_SD_PWR);
259 err_free_2:
260 return err;
261 }
262
poodle_mci_setpower(struct device * dev,unsigned int vdd)263 static int poodle_mci_setpower(struct device *dev, unsigned int vdd)
264 {
265 struct pxamci_platform_data* p_d = dev->platform_data;
266
267 if ((1 << vdd) & p_d->ocr_mask) {
268 gpio_set_value(POODLE_GPIO_SD_PWR, 1);
269 mdelay(2);
270 gpio_set_value(POODLE_GPIO_SD_PWR1, 1);
271 } else {
272 gpio_set_value(POODLE_GPIO_SD_PWR1, 0);
273 gpio_set_value(POODLE_GPIO_SD_PWR, 0);
274 }
275
276 return 0;
277 }
278
poodle_mci_exit(struct device * dev,void * data)279 static void poodle_mci_exit(struct device *dev, void *data)
280 {
281 gpio_free(POODLE_GPIO_SD_PWR1);
282 gpio_free(POODLE_GPIO_SD_PWR);
283 }
284
285 static struct pxamci_platform_data poodle_mci_platform_data = {
286 .detect_delay_ms = 250,
287 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
288 .init = poodle_mci_init,
289 .setpower = poodle_mci_setpower,
290 .exit = poodle_mci_exit,
291 .gpio_card_detect = POODLE_GPIO_nSD_DETECT,
292 .gpio_card_ro = POODLE_GPIO_nSD_WP,
293 .gpio_power = -1,
294 };
295
296
297 /*
298 * Irda
299 */
300 static struct pxaficp_platform_data poodle_ficp_platform_data = {
301 .gpio_pwdown = POODLE_GPIO_IR_ON,
302 .transceiver_cap = IR_SIRMODE | IR_OFF,
303 };
304
305
306 /*
307 * USB Device Controller
308 */
309 static struct pxa2xx_udc_mach_info udc_info __initdata = {
310 /* no connect GPIO; poodle can't tell connection status */
311 .gpio_pullup = POODLE_GPIO_USB_PULLUP,
312 };
313
314
315 /* PXAFB device */
316 static struct pxafb_mode_info poodle_fb_mode = {
317 .pixclock = 144700,
318 .xres = 320,
319 .yres = 240,
320 .bpp = 16,
321 .hsync_len = 7,
322 .left_margin = 11,
323 .right_margin = 30,
324 .vsync_len = 2,
325 .upper_margin = 2,
326 .lower_margin = 0,
327 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
328 };
329
330 static struct pxafb_mach_info poodle_fb_info = {
331 .modes = &poodle_fb_mode,
332 .num_modes = 1,
333 .lcd_conn = LCD_COLOR_TFT_16BPP,
334 };
335
336 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
337
338 static struct nand_bbt_descr sharpsl_bbt = {
339 .options = 0,
340 .offs = 4,
341 .len = 2,
342 .pattern = scan_ff_pattern
343 };
344
345 static const char * const probes[] = {
346 "cmdlinepart",
347 "ofpart",
348 "sharpslpart",
349 NULL,
350 };
351
352 static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
353 .badblock_pattern = &sharpsl_bbt,
354 .part_parsers = probes,
355 };
356
357 static struct resource sharpsl_nand_resources[] = {
358 {
359 .start = 0x0C000000,
360 .end = 0x0C000FFF,
361 .flags = IORESOURCE_MEM,
362 },
363 };
364
365 static struct platform_device sharpsl_nand_device = {
366 .name = "sharpsl-nand",
367 .id = -1,
368 .resource = sharpsl_nand_resources,
369 .num_resources = ARRAY_SIZE(sharpsl_nand_resources),
370 .dev.platform_data = &sharpsl_nand_platform_data,
371 };
372
373 static struct mtd_partition sharpsl_rom_parts[] = {
374 {
375 .name ="Boot PROM Filesystem",
376 .offset = 0x00120000,
377 .size = MTDPART_SIZ_FULL,
378 },
379 };
380
381 static struct physmap_flash_data sharpsl_rom_data = {
382 .width = 2,
383 .nr_parts = ARRAY_SIZE(sharpsl_rom_parts),
384 .parts = sharpsl_rom_parts,
385 };
386
387 static struct resource sharpsl_rom_resources[] = {
388 {
389 .start = 0x00000000,
390 .end = 0x007fffff,
391 .flags = IORESOURCE_MEM,
392 },
393 };
394
395 static struct platform_device sharpsl_rom_device = {
396 .name = "physmap-flash",
397 .id = -1,
398 .resource = sharpsl_rom_resources,
399 .num_resources = ARRAY_SIZE(sharpsl_rom_resources),
400 .dev.platform_data = &sharpsl_rom_data,
401 };
402
403 static struct platform_device *devices[] __initdata = {
404 &poodle_locomo_device,
405 &poodle_scoop_device,
406 &poodle_audio_device,
407 &sharpsl_nand_device,
408 &sharpsl_rom_device,
409 };
410
411 static struct i2c_board_info __initdata poodle_i2c_devices[] = {
412 { I2C_BOARD_INFO("wm8731", 0x1b) },
413 };
414
poodle_poweroff(void)415 static void poodle_poweroff(void)
416 {
417 pxa_restart(REBOOT_HARD, NULL);
418 }
419
poodle_init(void)420 static void __init poodle_init(void)
421 {
422 int ret = 0;
423
424 pm_power_off = poodle_poweroff;
425
426 PCFR |= PCFR_OPDE;
427
428 pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));
429
430 pxa_set_ffuart_info(NULL);
431 pxa_set_btuart_info(NULL);
432 pxa_set_stuart_info(NULL);
433
434 platform_scoop_config = &poodle_pcmcia_config;
435
436 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
437 if (ret)
438 pr_warn("poodle: Unable to register LoCoMo device\n");
439
440 pxa_set_fb_info(&poodle_locomo_device.dev, &poodle_fb_info);
441 pxa_set_udc_info(&udc_info);
442 pxa_set_mci_info(&poodle_mci_platform_data);
443 pxa_set_ficp_info(&poodle_ficp_platform_data);
444 pxa_set_i2c_info(NULL);
445 i2c_register_board_info(0, ARRAY_AND_SIZE(poodle_i2c_devices));
446 poodle_init_spi();
447 regulator_has_full_constraints();
448 }
449
fixup_poodle(struct tag * tags,char ** cmdline)450 static void __init fixup_poodle(struct tag *tags, char **cmdline)
451 {
452 sharpsl_save_param();
453 memblock_add(0xa0000000, SZ_32M);
454 }
455
456 MACHINE_START(POODLE, "SHARP Poodle")
457 .fixup = fixup_poodle,
458 .map_io = pxa25x_map_io,
459 .nr_irqs = POODLE_NR_IRQS, /* 4 for LoCoMo */
460 .init_irq = pxa25x_init_irq,
461 .handle_irq = pxa25x_handle_irq,
462 .init_time = pxa_timer_init,
463 .init_machine = poodle_init,
464 .restart = pxa_restart,
465 MACHINE_END
466
