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 <asm/mach-types.h>
34 #include <asm/irq.h>
35 #include <asm/setup.h>
36
37 #include <asm/mach/arch.h>
38 #include <asm/mach/map.h>
39 #include <asm/mach/irq.h>
40
41 #include "pxa25x.h"
42 #include "udc.h"
43 #include "poodle.h"
44
45 #include <linux/platform_data/mmc-pxamci.h>
46 #include <linux/platform_data/irda-pxaficp.h>
47 #include <linux/platform_data/video-pxafb.h>
48 #include <linux/platform_data/asoc-poodle.h>
49
50 #include <asm/hardware/scoop.h>
51 #include <asm/hardware/locomo.h>
52 #include <asm/mach/sharpsl_param.h>
53
54 #include "generic.h"
55 #include "devices.h"
56
57 static unsigned long poodle_pin_config[] __initdata = {
58 /* I/O */
59 GPIO79_nCS_3,
60 GPIO80_nCS_4,
61 GPIO18_RDY,
62
63 /* Clock */
64 GPIO12_32KHz,
65
66 /* SSP1 */
67 GPIO23_SSP1_SCLK,
68 GPIO25_SSP1_TXD,
69 GPIO26_SSP1_RXD,
70 GPIO24_GPIO, /* POODLE_GPIO_TP_CS - SFRM as chip select */
71
72 /* I2S */
73 GPIO28_I2S_BITCLK_OUT,
74 GPIO29_I2S_SDATA_IN,
75 GPIO30_I2S_SDATA_OUT,
76 GPIO31_I2S_SYNC,
77 GPIO32_I2S_SYSCLK,
78
79 /* Infra-Red */
80 GPIO47_FICP_TXD,
81 GPIO46_FICP_RXD,
82
83 /* FFUART */
84 GPIO40_FFUART_DTR,
85 GPIO41_FFUART_RTS,
86 GPIO39_FFUART_TXD,
87 GPIO37_FFUART_DSR,
88 GPIO34_FFUART_RXD,
89 GPIO35_FFUART_CTS,
90
91 /* LCD */
92 GPIOxx_LCD_TFT_16BPP,
93
94 /* PC Card */
95 GPIO48_nPOE,
96 GPIO49_nPWE,
97 GPIO50_nPIOR,
98 GPIO51_nPIOW,
99 GPIO52_nPCE_1,
100 GPIO53_nPCE_2,
101 GPIO54_nPSKTSEL,
102 GPIO55_nPREG,
103 GPIO56_nPWAIT,
104 GPIO57_nIOIS16,
105
106 /* MMC */
107 GPIO6_MMC_CLK,
108 GPIO8_MMC_CS0,
109
110 /* GPIO */
111 GPIO9_GPIO, /* POODLE_GPIO_nSD_DETECT */
112 GPIO7_GPIO, /* POODLE_GPIO_nSD_WP */
113 GPIO3_GPIO, /* POODLE_GPIO_SD_PWR */
114 GPIO33_GPIO, /* POODLE_GPIO_SD_PWR1 */
115
116 GPIO20_GPIO, /* POODLE_GPIO_USB_PULLUP */
117 GPIO22_GPIO, /* POODLE_GPIO_IR_ON */
118 };
119
120 static struct resource poodle_scoop_resources[] = {
121 [0] = {
122 .start = 0x10800000,
123 .end = 0x10800fff,
124 .flags = IORESOURCE_MEM,
125 },
126 };
127
128 static struct scoop_config poodle_scoop_setup = {
129 .io_dir = POODLE_SCOOP_IO_DIR,
130 .io_out = POODLE_SCOOP_IO_OUT,
131 .gpio_base = POODLE_SCOOP_GPIO_BASE,
132 };
133
134 struct platform_device poodle_scoop_device = {
135 .name = "sharp-scoop",
136 .id = -1,
137 .dev = {
138 .platform_data = &poodle_scoop_setup,
139 },
140 .num_resources = ARRAY_SIZE(poodle_scoop_resources),
141 .resource = poodle_scoop_resources,
142 };
143
144 static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
145 {
146 .dev = &poodle_scoop_device.dev,
147 .irq = POODLE_IRQ_GPIO_CF_IRQ,
148 .cd_irq = POODLE_IRQ_GPIO_CF_CD,
149 .cd_irq_str = "PCMCIA0 CD",
150 },
151 };
152
153 static struct scoop_pcmcia_config poodle_pcmcia_config = {
154 .devs = &poodle_pcmcia_scoop[0],
155 .num_devs = 1,
156 };
157
158 EXPORT_SYMBOL(poodle_scoop_device);
159
160 /* LoCoMo device */
161 static struct resource locomo_resources[] = {
162 [0] = {
163 .start = 0x10000000,
164 .end = 0x10001fff,
165 .flags = IORESOURCE_MEM,
166 },
167 [1] = {
168 .start = PXA_GPIO_TO_IRQ(10),
169 .end = PXA_GPIO_TO_IRQ(10),
170 .flags = IORESOURCE_IRQ,
171 },
172 };
173
174 static struct locomo_platform_data locomo_info = {
175 .irq_base = IRQ_BOARD_START,
176 };
177
178 static struct platform_device poodle_locomo_device = {
179 .name = "locomo",
180 .id = 0,
181 .num_resources = ARRAY_SIZE(locomo_resources),
182 .resource = locomo_resources,
183 .dev = {
184 .platform_data = &locomo_info,
185 },
186 };
187
188 static struct poodle_audio_platform_data poodle_audio_pdata = {
189 .locomo_dev = &poodle_locomo_device.dev,
190
191 .gpio_amp_on = POODLE_LOCOMO_GPIO_AMP_ON,
192 .gpio_mute_l = POODLE_LOCOMO_GPIO_MUTE_L,
193 .gpio_mute_r = POODLE_LOCOMO_GPIO_MUTE_R,
194 .gpio_232vcc_on = POODLE_LOCOMO_GPIO_232VCC_ON,
195 .gpio_jk_b = POODLE_LOCOMO_GPIO_JK_B,
196 };
197
198 static struct platform_device poodle_audio_device = {
199 .name = "poodle-audio",
200 .id = -1,
201 .dev.platform_data = &poodle_audio_pdata,
202 };
203
204 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
205 static struct pxa2xx_spi_controller poodle_spi_info = {
206 .num_chipselect = 1,
207 };
208
209 static struct gpiod_lookup_table poodle_spi_gpio_table = {
210 .dev_id = "pxa2xx-spi.1",
211 .table = {
212 GPIO_LOOKUP_IDX("gpio-pxa", POODLE_GPIO_TP_CS, "cs", 0, GPIO_ACTIVE_LOW),
213 { },
214 },
215 };
216
217 static struct ads7846_platform_data poodle_ads7846_info = {
218 .model = 7846,
219 .vref_delay_usecs = 100,
220 .x_plate_ohms = 419,
221 .y_plate_ohms = 486,
222 .gpio_pendown = POODLE_GPIO_TP_INT,
223 };
224
225 static struct spi_board_info poodle_spi_devices[] = {
226 {
227 .modalias = "ads7846",
228 .max_speed_hz = 10000,
229 .bus_num = 1,
230 .platform_data = &poodle_ads7846_info,
231 .irq = PXA_GPIO_TO_IRQ(POODLE_GPIO_TP_INT),
232 },
233 };
234
poodle_init_spi(void)235 static void __init poodle_init_spi(void)
236 {
237 gpiod_add_lookup_table(&poodle_spi_gpio_table);
238 pxa2xx_set_spi_info(1, &poodle_spi_info);
239 spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
240 }
241 #else
poodle_init_spi(void)242 static inline void poodle_init_spi(void) {}
243 #endif
244
245 /*
246 * MMC/SD Device
247 *
248 * The card detect interrupt isn't debounced so we delay it by 250ms
249 * to give the card a chance to fully insert/eject.
250 */
poodle_mci_init(struct device * dev,irq_handler_t poodle_detect_int,void * data)251 static int poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int, void *data)
252 {
253 int err;
254
255 err = gpio_request(POODLE_GPIO_SD_PWR, "SD_PWR");
256 if (err)
257 goto err_free_2;
258
259 err = gpio_request(POODLE_GPIO_SD_PWR1, "SD_PWR1");
260 if (err)
261 goto err_free_3;
262
263 gpio_direction_output(POODLE_GPIO_SD_PWR, 0);
264 gpio_direction_output(POODLE_GPIO_SD_PWR1, 0);
265
266 return 0;
267
268 err_free_3:
269 gpio_free(POODLE_GPIO_SD_PWR);
270 err_free_2:
271 return err;
272 }
273
poodle_mci_setpower(struct device * dev,unsigned int vdd)274 static int poodle_mci_setpower(struct device *dev, unsigned int vdd)
275 {
276 struct pxamci_platform_data* p_d = dev->platform_data;
277
278 if ((1 << vdd) & p_d->ocr_mask) {
279 gpio_set_value(POODLE_GPIO_SD_PWR, 1);
280 mdelay(2);
281 gpio_set_value(POODLE_GPIO_SD_PWR1, 1);
282 } else {
283 gpio_set_value(POODLE_GPIO_SD_PWR1, 0);
284 gpio_set_value(POODLE_GPIO_SD_PWR, 0);
285 }
286
287 return 0;
288 }
289
poodle_mci_exit(struct device * dev,void * data)290 static void poodle_mci_exit(struct device *dev, void *data)
291 {
292 gpio_free(POODLE_GPIO_SD_PWR1);
293 gpio_free(POODLE_GPIO_SD_PWR);
294 }
295
296 static struct pxamci_platform_data poodle_mci_platform_data = {
297 .detect_delay_ms = 250,
298 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
299 .init = poodle_mci_init,
300 .setpower = poodle_mci_setpower,
301 .exit = poodle_mci_exit,
302 };
303
304 static struct gpiod_lookup_table poodle_mci_gpio_table = {
305 .dev_id = "pxa2xx-mci.0",
306 .table = {
307 GPIO_LOOKUP("gpio-pxa", POODLE_GPIO_nSD_DETECT,
308 "cd", GPIO_ACTIVE_LOW),
309 GPIO_LOOKUP("gpio-pxa", POODLE_GPIO_nSD_WP,
310 "wp", GPIO_ACTIVE_LOW),
311 { },
312 },
313 };
314
315 /*
316 * Irda
317 */
318 static struct pxaficp_platform_data poodle_ficp_platform_data = {
319 .gpio_pwdown = POODLE_GPIO_IR_ON,
320 .transceiver_cap = IR_SIRMODE | IR_OFF,
321 };
322
323
324 /*
325 * USB Device Controller
326 */
327 static struct pxa2xx_udc_mach_info udc_info __initdata = {
328 /* no connect GPIO; poodle can't tell connection status */
329 .gpio_pullup = POODLE_GPIO_USB_PULLUP,
330 };
331
332
333 /* PXAFB device */
334 static struct pxafb_mode_info poodle_fb_mode = {
335 .pixclock = 144700,
336 .xres = 320,
337 .yres = 240,
338 .bpp = 16,
339 .hsync_len = 7,
340 .left_margin = 11,
341 .right_margin = 30,
342 .vsync_len = 2,
343 .upper_margin = 2,
344 .lower_margin = 0,
345 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
346 };
347
348 static struct pxafb_mach_info poodle_fb_info = {
349 .modes = &poodle_fb_mode,
350 .num_modes = 1,
351 .lcd_conn = LCD_COLOR_TFT_16BPP,
352 };
353
354 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
355
356 static struct nand_bbt_descr sharpsl_bbt = {
357 .options = 0,
358 .offs = 4,
359 .len = 2,
360 .pattern = scan_ff_pattern
361 };
362
363 static const char * const probes[] = {
364 "cmdlinepart",
365 "ofpart",
366 "sharpslpart",
367 NULL,
368 };
369
370 static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
371 .badblock_pattern = &sharpsl_bbt,
372 .part_parsers = probes,
373 };
374
375 static struct resource sharpsl_nand_resources[] = {
376 {
377 .start = 0x0C000000,
378 .end = 0x0C000FFF,
379 .flags = IORESOURCE_MEM,
380 },
381 };
382
383 static struct platform_device sharpsl_nand_device = {
384 .name = "sharpsl-nand",
385 .id = -1,
386 .resource = sharpsl_nand_resources,
387 .num_resources = ARRAY_SIZE(sharpsl_nand_resources),
388 .dev.platform_data = &sharpsl_nand_platform_data,
389 };
390
391 static struct mtd_partition sharpsl_rom_parts[] = {
392 {
393 .name ="Boot PROM Filesystem",
394 .offset = 0x00120000,
395 .size = MTDPART_SIZ_FULL,
396 },
397 };
398
399 static struct physmap_flash_data sharpsl_rom_data = {
400 .width = 2,
401 .nr_parts = ARRAY_SIZE(sharpsl_rom_parts),
402 .parts = sharpsl_rom_parts,
403 };
404
405 static struct resource sharpsl_rom_resources[] = {
406 {
407 .start = 0x00000000,
408 .end = 0x007fffff,
409 .flags = IORESOURCE_MEM,
410 },
411 };
412
413 static struct platform_device sharpsl_rom_device = {
414 .name = "physmap-flash",
415 .id = -1,
416 .resource = sharpsl_rom_resources,
417 .num_resources = ARRAY_SIZE(sharpsl_rom_resources),
418 .dev.platform_data = &sharpsl_rom_data,
419 };
420
421 static struct platform_device *devices[] __initdata = {
422 &poodle_locomo_device,
423 &poodle_scoop_device,
424 &poodle_audio_device,
425 &sharpsl_nand_device,
426 &sharpsl_rom_device,
427 };
428
429 static struct i2c_board_info __initdata poodle_i2c_devices[] = {
430 { I2C_BOARD_INFO("wm8731", 0x1b) },
431 };
432
poodle_poweroff(void)433 static void poodle_poweroff(void)
434 {
435 pxa_restart(REBOOT_HARD, NULL);
436 }
437
poodle_init(void)438 static void __init poodle_init(void)
439 {
440 int ret = 0;
441
442 pm_power_off = poodle_poweroff;
443
444 PCFR |= PCFR_OPDE;
445
446 pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));
447
448 pxa_set_ffuart_info(NULL);
449 pxa_set_btuart_info(NULL);
450 pxa_set_stuart_info(NULL);
451
452 platform_scoop_config = &poodle_pcmcia_config;
453
454 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
455 if (ret)
456 pr_warn("poodle: Unable to register LoCoMo device\n");
457
458 pxa_set_fb_info(&poodle_locomo_device.dev, &poodle_fb_info);
459 pxa_set_udc_info(&udc_info);
460 gpiod_add_lookup_table(&poodle_mci_gpio_table);
461 pxa_set_mci_info(&poodle_mci_platform_data);
462 pxa_set_ficp_info(&poodle_ficp_platform_data);
463 pxa_set_i2c_info(NULL);
464 i2c_register_board_info(0, ARRAY_AND_SIZE(poodle_i2c_devices));
465 poodle_init_spi();
466 regulator_has_full_constraints();
467 }
468
fixup_poodle(struct tag * tags,char ** cmdline)469 static void __init fixup_poodle(struct tag *tags, char **cmdline)
470 {
471 sharpsl_save_param();
472 memblock_add(0xa0000000, SZ_32M);
473 }
474
475 MACHINE_START(POODLE, "SHARP Poodle")
476 .fixup = fixup_poodle,
477 .map_io = pxa25x_map_io,
478 .nr_irqs = POODLE_NR_IRQS, /* 4 for LoCoMo */
479 .init_irq = pxa25x_init_irq,
480 .handle_irq = pxa25x_handle_irq,
481 .init_time = pxa_timer_init,
482 .init_machine = poodle_init,
483 .restart = pxa_restart,
484 MACHINE_END
485