1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-pxa/poodle.c
4 *
5 * Support for the SHARP Poodle Board.
6 *
7 * Based on:
8 * linux/arch/arm/mach-pxa/lubbock.c Author: Nicolas Pitre
9 *
10 * Change Log
11 * 12-Dec-2002 Sharp Corporation for Poodle
12 * John Lenz <lenz@cs.wisc.edu> updates to 2.6
13 */
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/export.h>
17 #include <linux/platform_device.h>
18 #include <linux/fb.h>
19 #include <linux/pm.h>
20 #include <linux/delay.h>
21 #include <linux/mtd/physmap.h>
22 #include <linux/gpio.h>
23 #include <linux/gpio/machine.h>
24 #include <linux/i2c.h>
25 #include <linux/platform_data/i2c-pxa.h>
26 #include <linux/regulator/machine.h>
27 #include <linux/spi/spi.h>
28 #include <linux/spi/ads7846.h>
29 #include <linux/spi/pxa2xx_spi.h>
30 #include <linux/mtd/sharpsl.h>
31 #include <linux/memblock.h>
32
33 #include <mach/hardware.h>
34 #include <asm/mach-types.h>
35 #include <asm/irq.h>
36 #include <asm/setup.h>
37
38 #include <asm/mach/arch.h>
39 #include <asm/mach/map.h>
40 #include <asm/mach/irq.h>
41
42 #include "pxa25x.h"
43 #include <linux/platform_data/mmc-pxamci.h>
44 #include "udc.h"
45 #include <linux/platform_data/irda-pxaficp.h>
46 #include <mach/poodle.h>
47 #include <linux/platform_data/video-pxafb.h>
48
49 #include <asm/hardware/scoop.h>
50 #include <asm/hardware/locomo.h>
51 #include <asm/mach/sharpsl_param.h>
52
53 #include "generic.h"
54 #include "devices.h"
55
56 static unsigned long poodle_pin_config[] __initdata = {
57 /* I/O */
58 GPIO79_nCS_3,
59 GPIO80_nCS_4,
60 GPIO18_RDY,
61
62 /* Clock */
63 GPIO12_32KHz,
64
65 /* SSP1 */
66 GPIO23_SSP1_SCLK,
67 GPIO25_SSP1_TXD,
68 GPIO26_SSP1_RXD,
69 GPIO24_GPIO, /* POODLE_GPIO_TP_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 /* LCD */
91 GPIOxx_LCD_TFT_16BPP,
92
93 /* PC Card */
94 GPIO48_nPOE,
95 GPIO49_nPWE,
96 GPIO50_nPIOR,
97 GPIO51_nPIOW,
98 GPIO52_nPCE_1,
99 GPIO53_nPCE_2,
100 GPIO54_nPSKTSEL,
101 GPIO55_nPREG,
102 GPIO56_nPWAIT,
103 GPIO57_nIOIS16,
104
105 /* MMC */
106 GPIO6_MMC_CLK,
107 GPIO8_MMC_CS0,
108
109 /* GPIO */
110 GPIO9_GPIO, /* POODLE_GPIO_nSD_DETECT */
111 GPIO7_GPIO, /* POODLE_GPIO_nSD_WP */
112 GPIO3_GPIO, /* POODLE_GPIO_SD_PWR */
113 GPIO33_GPIO, /* POODLE_GPIO_SD_PWR1 */
114
115 GPIO20_GPIO, /* POODLE_GPIO_USB_PULLUP */
116 GPIO22_GPIO, /* POODLE_GPIO_IR_ON */
117 };
118
119 static struct resource poodle_scoop_resources[] = {
120 [0] = {
121 .start = 0x10800000,
122 .end = 0x10800fff,
123 .flags = IORESOURCE_MEM,
124 },
125 };
126
127 static struct scoop_config poodle_scoop_setup = {
128 .io_dir = POODLE_SCOOP_IO_DIR,
129 .io_out = POODLE_SCOOP_IO_OUT,
130 .gpio_base = POODLE_SCOOP_GPIO_BASE,
131 };
132
133 struct platform_device poodle_scoop_device = {
134 .name = "sharp-scoop",
135 .id = -1,
136 .dev = {
137 .platform_data = &poodle_scoop_setup,
138 },
139 .num_resources = ARRAY_SIZE(poodle_scoop_resources),
140 .resource = poodle_scoop_resources,
141 };
142
143 static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
144 {
145 .dev = &poodle_scoop_device.dev,
146 .irq = POODLE_IRQ_GPIO_CF_IRQ,
147 .cd_irq = POODLE_IRQ_GPIO_CF_CD,
148 .cd_irq_str = "PCMCIA0 CD",
149 },
150 };
151
152 static struct scoop_pcmcia_config poodle_pcmcia_config = {
153 .devs = &poodle_pcmcia_scoop[0],
154 .num_devs = 1,
155 };
156
157 EXPORT_SYMBOL(poodle_scoop_device);
158
159
160 static struct platform_device poodle_audio_device = {
161 .name = "poodle-audio",
162 .id = -1,
163 };
164
165 /* LoCoMo device */
166 static struct resource locomo_resources[] = {
167 [0] = {
168 .start = 0x10000000,
169 .end = 0x10001fff,
170 .flags = IORESOURCE_MEM,
171 },
172 [1] = {
173 .start = PXA_GPIO_TO_IRQ(10),
174 .end = PXA_GPIO_TO_IRQ(10),
175 .flags = IORESOURCE_IRQ,
176 },
177 };
178
179 static struct locomo_platform_data locomo_info = {
180 .irq_base = IRQ_BOARD_START,
181 };
182
183 struct platform_device poodle_locomo_device = {
184 .name = "locomo",
185 .id = 0,
186 .num_resources = ARRAY_SIZE(locomo_resources),
187 .resource = locomo_resources,
188 .dev = {
189 .platform_data = &locomo_info,
190 },
191 };
192
193 EXPORT_SYMBOL(poodle_locomo_device);
194
195 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
196 static struct pxa2xx_spi_controller poodle_spi_info = {
197 .num_chipselect = 1,
198 };
199
200 static struct ads7846_platform_data poodle_ads7846_info = {
201 .model = 7846,
202 .vref_delay_usecs = 100,
203 .x_plate_ohms = 419,
204 .y_plate_ohms = 486,
205 .gpio_pendown = POODLE_GPIO_TP_INT,
206 };
207
208 static struct pxa2xx_spi_chip poodle_ads7846_chip = {
209 .gpio_cs = POODLE_GPIO_TP_CS,
210 };
211
212 static struct spi_board_info poodle_spi_devices[] = {
213 {
214 .modalias = "ads7846",
215 .max_speed_hz = 10000,
216 .bus_num = 1,
217 .platform_data = &poodle_ads7846_info,
218 .controller_data= &poodle_ads7846_chip,
219 .irq = PXA_GPIO_TO_IRQ(POODLE_GPIO_TP_INT),
220 },
221 };
222
poodle_init_spi(void)223 static void __init poodle_init_spi(void)
224 {
225 pxa2xx_set_spi_info(1, &poodle_spi_info);
226 spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
227 }
228 #else
poodle_init_spi(void)229 static inline void poodle_init_spi(void) {}
230 #endif
231
232 /*
233 * MMC/SD Device
234 *
235 * The card detect interrupt isn't debounced so we delay it by 250ms
236 * to give the card a chance to fully insert/eject.
237 */
poodle_mci_init(struct device * dev,irq_handler_t poodle_detect_int,void * data)238 static int poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int, void *data)
239 {
240 int err;
241
242 err = gpio_request(POODLE_GPIO_SD_PWR, "SD_PWR");
243 if (err)
244 goto err_free_2;
245
246 err = gpio_request(POODLE_GPIO_SD_PWR1, "SD_PWR1");
247 if (err)
248 goto err_free_3;
249
250 gpio_direction_output(POODLE_GPIO_SD_PWR, 0);
251 gpio_direction_output(POODLE_GPIO_SD_PWR1, 0);
252
253 return 0;
254
255 err_free_3:
256 gpio_free(POODLE_GPIO_SD_PWR);
257 err_free_2:
258 return err;
259 }
260
poodle_mci_setpower(struct device * dev,unsigned int vdd)261 static int poodle_mci_setpower(struct device *dev, unsigned int vdd)
262 {
263 struct pxamci_platform_data* p_d = dev->platform_data;
264
265 if ((1 << vdd) & p_d->ocr_mask) {
266 gpio_set_value(POODLE_GPIO_SD_PWR, 1);
267 mdelay(2);
268 gpio_set_value(POODLE_GPIO_SD_PWR1, 1);
269 } else {
270 gpio_set_value(POODLE_GPIO_SD_PWR1, 0);
271 gpio_set_value(POODLE_GPIO_SD_PWR, 0);
272 }
273
274 return 0;
275 }
276
poodle_mci_exit(struct device * dev,void * data)277 static void poodle_mci_exit(struct device *dev, void *data)
278 {
279 gpio_free(POODLE_GPIO_SD_PWR1);
280 gpio_free(POODLE_GPIO_SD_PWR);
281 }
282
283 static struct pxamci_platform_data poodle_mci_platform_data = {
284 .detect_delay_ms = 250,
285 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
286 .init = poodle_mci_init,
287 .setpower = poodle_mci_setpower,
288 .exit = poodle_mci_exit,
289 };
290
291 static struct gpiod_lookup_table poodle_mci_gpio_table = {
292 .dev_id = "pxa2xx-mci.0",
293 .table = {
294 GPIO_LOOKUP("gpio-pxa", POODLE_GPIO_nSD_DETECT,
295 "cd", GPIO_ACTIVE_LOW),
296 GPIO_LOOKUP("gpio-pxa", POODLE_GPIO_nSD_WP,
297 "wp", GPIO_ACTIVE_LOW),
298 { },
299 },
300 };
301
302 /*
303 * Irda
304 */
305 static struct pxaficp_platform_data poodle_ficp_platform_data = {
306 .gpio_pwdown = POODLE_GPIO_IR_ON,
307 .transceiver_cap = IR_SIRMODE | IR_OFF,
308 };
309
310
311 /*
312 * USB Device Controller
313 */
314 static struct pxa2xx_udc_mach_info udc_info __initdata = {
315 /* no connect GPIO; poodle can't tell connection status */
316 .gpio_pullup = POODLE_GPIO_USB_PULLUP,
317 };
318
319
320 /* PXAFB device */
321 static struct pxafb_mode_info poodle_fb_mode = {
322 .pixclock = 144700,
323 .xres = 320,
324 .yres = 240,
325 .bpp = 16,
326 .hsync_len = 7,
327 .left_margin = 11,
328 .right_margin = 30,
329 .vsync_len = 2,
330 .upper_margin = 2,
331 .lower_margin = 0,
332 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
333 };
334
335 static struct pxafb_mach_info poodle_fb_info = {
336 .modes = &poodle_fb_mode,
337 .num_modes = 1,
338 .lcd_conn = LCD_COLOR_TFT_16BPP,
339 };
340
341 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
342
343 static struct nand_bbt_descr sharpsl_bbt = {
344 .options = 0,
345 .offs = 4,
346 .len = 2,
347 .pattern = scan_ff_pattern
348 };
349
350 static const char * const probes[] = {
351 "cmdlinepart",
352 "ofpart",
353 "sharpslpart",
354 NULL,
355 };
356
357 static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
358 .badblock_pattern = &sharpsl_bbt,
359 .part_parsers = probes,
360 };
361
362 static struct resource sharpsl_nand_resources[] = {
363 {
364 .start = 0x0C000000,
365 .end = 0x0C000FFF,
366 .flags = IORESOURCE_MEM,
367 },
368 };
369
370 static struct platform_device sharpsl_nand_device = {
371 .name = "sharpsl-nand",
372 .id = -1,
373 .resource = sharpsl_nand_resources,
374 .num_resources = ARRAY_SIZE(sharpsl_nand_resources),
375 .dev.platform_data = &sharpsl_nand_platform_data,
376 };
377
378 static struct mtd_partition sharpsl_rom_parts[] = {
379 {
380 .name ="Boot PROM Filesystem",
381 .offset = 0x00120000,
382 .size = MTDPART_SIZ_FULL,
383 },
384 };
385
386 static struct physmap_flash_data sharpsl_rom_data = {
387 .width = 2,
388 .nr_parts = ARRAY_SIZE(sharpsl_rom_parts),
389 .parts = sharpsl_rom_parts,
390 };
391
392 static struct resource sharpsl_rom_resources[] = {
393 {
394 .start = 0x00000000,
395 .end = 0x007fffff,
396 .flags = IORESOURCE_MEM,
397 },
398 };
399
400 static struct platform_device sharpsl_rom_device = {
401 .name = "physmap-flash",
402 .id = -1,
403 .resource = sharpsl_rom_resources,
404 .num_resources = ARRAY_SIZE(sharpsl_rom_resources),
405 .dev.platform_data = &sharpsl_rom_data,
406 };
407
408 static struct platform_device *devices[] __initdata = {
409 &poodle_locomo_device,
410 &poodle_scoop_device,
411 &poodle_audio_device,
412 &sharpsl_nand_device,
413 &sharpsl_rom_device,
414 };
415
416 static struct i2c_board_info __initdata poodle_i2c_devices[] = {
417 { I2C_BOARD_INFO("wm8731", 0x1b) },
418 };
419
poodle_poweroff(void)420 static void poodle_poweroff(void)
421 {
422 pxa_restart(REBOOT_HARD, NULL);
423 }
424
poodle_init(void)425 static void __init poodle_init(void)
426 {
427 int ret = 0;
428
429 pm_power_off = poodle_poweroff;
430
431 PCFR |= PCFR_OPDE;
432
433 pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));
434
435 pxa_set_ffuart_info(NULL);
436 pxa_set_btuart_info(NULL);
437 pxa_set_stuart_info(NULL);
438
439 platform_scoop_config = &poodle_pcmcia_config;
440
441 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
442 if (ret)
443 pr_warn("poodle: Unable to register LoCoMo device\n");
444
445 pxa_set_fb_info(&poodle_locomo_device.dev, &poodle_fb_info);
446 pxa_set_udc_info(&udc_info);
447 gpiod_add_lookup_table(&poodle_mci_gpio_table);
448 pxa_set_mci_info(&poodle_mci_platform_data);
449 pxa_set_ficp_info(&poodle_ficp_platform_data);
450 pxa_set_i2c_info(NULL);
451 i2c_register_board_info(0, ARRAY_AND_SIZE(poodle_i2c_devices));
452 poodle_init_spi();
453 regulator_has_full_constraints();
454 }
455
fixup_poodle(struct tag * tags,char ** cmdline)456 static void __init fixup_poodle(struct tag *tags, char **cmdline)
457 {
458 sharpsl_save_param();
459 memblock_add(0xa0000000, SZ_32M);
460 }
461
462 MACHINE_START(POODLE, "SHARP Poodle")
463 .fixup = fixup_poodle,
464 .map_io = pxa25x_map_io,
465 .nr_irqs = POODLE_NR_IRQS, /* 4 for LoCoMo */
466 .init_irq = pxa25x_init_irq,
467 .handle_irq = pxa25x_handle_irq,
468 .init_time = pxa_timer_init,
469 .init_machine = poodle_init,
470 .restart = pxa_restart,
471 MACHINE_END
472