1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-pxa/saar.c
4 *
5 * Support for the Marvell PXA930 Handheld Platform (aka SAAR)
6 *
7 * Copyright (C) 2007-2008 Marvell International Ltd.
8 */
9
10 #include <linux/module.h>
11 #include <linux/kernel.h>
12 #include <linux/interrupt.h>
13 #include <linux/init.h>
14 #include <linux/platform_device.h>
15 #include <linux/clk.h>
16 #include <linux/gpio.h>
17 #include <linux/delay.h>
18 #include <linux/fb.h>
19 #include <linux/i2c.h>
20 #include <linux/platform_data/i2c-pxa.h>
21 #include <linux/smc91x.h>
22 #include <linux/mfd/da903x.h>
23 #include <linux/mtd/mtd.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/mtd/onenand.h>
26
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/flash.h>
30
31 #include "pxa930.h"
32 #include <linux/platform_data/video-pxafb.h>
33
34 #include "devices.h"
35 #include "generic.h"
36
37 #define GPIO_LCD_RESET (16)
38
39 /* SAAR MFP configurations */
40 static mfp_cfg_t saar_mfp_cfg[] __initdata = {
41 /* LCD */
42 GPIO23_LCD_DD0,
43 GPIO24_LCD_DD1,
44 GPIO25_LCD_DD2,
45 GPIO26_LCD_DD3,
46 GPIO27_LCD_DD4,
47 GPIO28_LCD_DD5,
48 GPIO29_LCD_DD6,
49 GPIO44_LCD_DD7,
50 GPIO21_LCD_CS,
51 GPIO22_LCD_VSYNC,
52 GPIO17_LCD_FCLK_RD,
53 GPIO18_LCD_LCLK_A0,
54 GPIO19_LCD_PCLK_WR,
55 GPIO16_GPIO, /* LCD reset */
56
57 /* Ethernet */
58 DF_nCS1_nCS3,
59 GPIO97_GPIO,
60
61 /* DFI */
62 DF_INT_RnB_ND_INT_RnB,
63 DF_nRE_nOE_ND_nRE,
64 DF_nWE_ND_nWE,
65 DF_CLE_nOE_ND_CLE,
66 DF_nADV1_ALE_ND_ALE,
67 DF_nADV2_ALE_nCS3,
68 DF_nCS0_ND_nCS0,
69 DF_IO0_ND_IO0,
70 DF_IO1_ND_IO1,
71 DF_IO2_ND_IO2,
72 DF_IO3_ND_IO3,
73 DF_IO4_ND_IO4,
74 DF_IO5_ND_IO5,
75 DF_IO6_ND_IO6,
76 DF_IO7_ND_IO7,
77 DF_IO8_ND_IO8,
78 DF_IO9_ND_IO9,
79 DF_IO10_ND_IO10,
80 DF_IO11_ND_IO11,
81 DF_IO12_ND_IO12,
82 DF_IO13_ND_IO13,
83 DF_IO14_ND_IO14,
84 DF_IO15_ND_IO15,
85 };
86
87 #define SAAR_ETH_PHYS (0x14000000)
88
89 static struct resource smc91x_resources[] = {
90 [0] = {
91 .start = (SAAR_ETH_PHYS + 0x300),
92 .end = (SAAR_ETH_PHYS + 0xfffff),
93 .flags = IORESOURCE_MEM,
94 },
95 [1] = {
96 .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO97)),
97 .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO97)),
98 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
99 }
100 };
101
102 static struct smc91x_platdata saar_smc91x_info = {
103 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_USE_DMA,
104 };
105
106 static struct platform_device smc91x_device = {
107 .name = "smc91x",
108 .id = 0,
109 .num_resources = ARRAY_SIZE(smc91x_resources),
110 .resource = smc91x_resources,
111 .dev = {
112 .platform_data = &saar_smc91x_info,
113 },
114 };
115
116 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
117 static uint16_t lcd_power_on[] = {
118 /* single frame */
119 SMART_CMD_NOOP,
120 SMART_CMD(0x00),
121 SMART_DELAY(0),
122
123 SMART_CMD_NOOP,
124 SMART_CMD(0x00),
125 SMART_DELAY(0),
126
127 SMART_CMD_NOOP,
128 SMART_CMD(0x00),
129 SMART_DELAY(0),
130
131 SMART_CMD_NOOP,
132 SMART_CMD(0x00),
133 SMART_DELAY(10),
134
135 /* calibration control */
136 SMART_CMD(0x00),
137 SMART_CMD(0xA4),
138 SMART_DAT(0x80),
139 SMART_DAT(0x01),
140 SMART_DELAY(150),
141
142 /*Power-On Init sequence*/
143 SMART_CMD(0x00), /* output ctrl */
144 SMART_CMD(0x01),
145 SMART_DAT(0x01),
146 SMART_DAT(0x00),
147 SMART_CMD(0x00), /* wave ctrl */
148 SMART_CMD(0x02),
149 SMART_DAT(0x07),
150 SMART_DAT(0x00),
151 SMART_CMD(0x00),
152 SMART_CMD(0x03), /* entry mode */
153 SMART_DAT(0xD0),
154 SMART_DAT(0x30),
155 SMART_CMD(0x00),
156 SMART_CMD(0x08), /* display ctrl 2 */
157 SMART_DAT(0x08),
158 SMART_DAT(0x08),
159 SMART_CMD(0x00),
160 SMART_CMD(0x09), /* display ctrl 3 */
161 SMART_DAT(0x04),
162 SMART_DAT(0x2F),
163 SMART_CMD(0x00),
164 SMART_CMD(0x0A), /* display ctrl 4 */
165 SMART_DAT(0x00),
166 SMART_DAT(0x08),
167 SMART_CMD(0x00),
168 SMART_CMD(0x0D), /* Frame Marker position */
169 SMART_DAT(0x00),
170 SMART_DAT(0x08),
171 SMART_CMD(0x00),
172 SMART_CMD(0x60), /* Driver output control */
173 SMART_DAT(0x27),
174 SMART_DAT(0x00),
175 SMART_CMD(0x00),
176 SMART_CMD(0x61), /* Base image display control */
177 SMART_DAT(0x00),
178 SMART_DAT(0x01),
179 SMART_CMD(0x00),
180 SMART_CMD(0x30), /* Y settings 30h-3Dh */
181 SMART_DAT(0x07),
182 SMART_DAT(0x07),
183 SMART_CMD(0x00),
184 SMART_CMD(0x31),
185 SMART_DAT(0x00),
186 SMART_DAT(0x07),
187 SMART_CMD(0x00),
188 SMART_CMD(0x32), /* Timing(3), ASW HOLD=0.5CLK */
189 SMART_DAT(0x04),
190 SMART_DAT(0x00),
191 SMART_CMD(0x00),
192 SMART_CMD(0x33), /* Timing(4), CKV ST=0CLK, CKV ED=1CLK */
193 SMART_DAT(0x03),
194 SMART_DAT(0x03),
195 SMART_CMD(0x00),
196 SMART_CMD(0x34),
197 SMART_DAT(0x00),
198 SMART_DAT(0x00),
199 SMART_CMD(0x00),
200 SMART_CMD(0x35),
201 SMART_DAT(0x02),
202 SMART_DAT(0x05),
203 SMART_CMD(0x00),
204 SMART_CMD(0x36),
205 SMART_DAT(0x1F),
206 SMART_DAT(0x1F),
207 SMART_CMD(0x00),
208 SMART_CMD(0x37),
209 SMART_DAT(0x07),
210 SMART_DAT(0x07),
211 SMART_CMD(0x00),
212 SMART_CMD(0x38),
213 SMART_DAT(0x00),
214 SMART_DAT(0x07),
215 SMART_CMD(0x00),
216 SMART_CMD(0x39),
217 SMART_DAT(0x04),
218 SMART_DAT(0x00),
219 SMART_CMD(0x00),
220 SMART_CMD(0x3A),
221 SMART_DAT(0x03),
222 SMART_DAT(0x03),
223 SMART_CMD(0x00),
224 SMART_CMD(0x3B),
225 SMART_DAT(0x00),
226 SMART_DAT(0x00),
227 SMART_CMD(0x00),
228 SMART_CMD(0x3C),
229 SMART_DAT(0x02),
230 SMART_DAT(0x05),
231 SMART_CMD(0x00),
232 SMART_CMD(0x3D),
233 SMART_DAT(0x1F),
234 SMART_DAT(0x1F),
235 SMART_CMD(0x00), /* Display control 1 */
236 SMART_CMD(0x07),
237 SMART_DAT(0x00),
238 SMART_DAT(0x01),
239 SMART_CMD(0x00), /* Power control 5 */
240 SMART_CMD(0x17),
241 SMART_DAT(0x00),
242 SMART_DAT(0x01),
243 SMART_CMD(0x00), /* Power control 1 */
244 SMART_CMD(0x10),
245 SMART_DAT(0x10),
246 SMART_DAT(0xB0),
247 SMART_CMD(0x00), /* Power control 2 */
248 SMART_CMD(0x11),
249 SMART_DAT(0x01),
250 SMART_DAT(0x30),
251 SMART_CMD(0x00), /* Power control 3 */
252 SMART_CMD(0x12),
253 SMART_DAT(0x01),
254 SMART_DAT(0x9E),
255 SMART_CMD(0x00), /* Power control 4 */
256 SMART_CMD(0x13),
257 SMART_DAT(0x17),
258 SMART_DAT(0x00),
259 SMART_CMD(0x00), /* Power control 3 */
260 SMART_CMD(0x12),
261 SMART_DAT(0x01),
262 SMART_DAT(0xBE),
263 SMART_DELAY(100),
264
265 /* display mode : 240*320 */
266 SMART_CMD(0x00), /* RAM address set(H) 0*/
267 SMART_CMD(0x20),
268 SMART_DAT(0x00),
269 SMART_DAT(0x00),
270 SMART_CMD(0x00), /* RAM address set(V) 4*/
271 SMART_CMD(0x21),
272 SMART_DAT(0x00),
273 SMART_DAT(0x00),
274 SMART_CMD(0x00), /* Start of Window RAM address set(H) 8*/
275 SMART_CMD(0x50),
276 SMART_DAT(0x00),
277 SMART_DAT(0x00),
278 SMART_CMD(0x00), /* End of Window RAM address set(H) 12*/
279 SMART_CMD(0x51),
280 SMART_DAT(0x00),
281 SMART_DAT(0xEF),
282 SMART_CMD(0x00), /* Start of Window RAM address set(V) 16*/
283 SMART_CMD(0x52),
284 SMART_DAT(0x00),
285 SMART_DAT(0x00),
286 SMART_CMD(0x00), /* End of Window RAM address set(V) 20*/
287 SMART_CMD(0x53),
288 SMART_DAT(0x01),
289 SMART_DAT(0x3F),
290 SMART_CMD(0x00), /* Panel interface control 1 */
291 SMART_CMD(0x90),
292 SMART_DAT(0x00),
293 SMART_DAT(0x1A),
294 SMART_CMD(0x00), /* Panel interface control 2 */
295 SMART_CMD(0x92),
296 SMART_DAT(0x04),
297 SMART_DAT(0x00),
298 SMART_CMD(0x00), /* Panel interface control 3 */
299 SMART_CMD(0x93),
300 SMART_DAT(0x00),
301 SMART_DAT(0x05),
302 SMART_DELAY(20),
303 };
304
305 static uint16_t lcd_panel_on[] = {
306 SMART_CMD(0x00),
307 SMART_CMD(0x07),
308 SMART_DAT(0x00),
309 SMART_DAT(0x21),
310 SMART_DELAY(1),
311
312 SMART_CMD(0x00),
313 SMART_CMD(0x07),
314 SMART_DAT(0x00),
315 SMART_DAT(0x61),
316 SMART_DELAY(100),
317
318 SMART_CMD(0x00),
319 SMART_CMD(0x07),
320 SMART_DAT(0x01),
321 SMART_DAT(0x73),
322 SMART_DELAY(1),
323 };
324
325 static uint16_t lcd_panel_off[] = {
326 SMART_CMD(0x00),
327 SMART_CMD(0x07),
328 SMART_DAT(0x00),
329 SMART_DAT(0x72),
330 SMART_DELAY(40),
331
332 SMART_CMD(0x00),
333 SMART_CMD(0x07),
334 SMART_DAT(0x00),
335 SMART_DAT(0x01),
336 SMART_DELAY(1),
337
338 SMART_CMD(0x00),
339 SMART_CMD(0x07),
340 SMART_DAT(0x00),
341 SMART_DAT(0x00),
342 SMART_DELAY(1),
343 };
344
345 static uint16_t lcd_power_off[] = {
346 SMART_CMD(0x00),
347 SMART_CMD(0x10),
348 SMART_DAT(0x00),
349 SMART_DAT(0x80),
350
351 SMART_CMD(0x00),
352 SMART_CMD(0x11),
353 SMART_DAT(0x01),
354 SMART_DAT(0x60),
355
356 SMART_CMD(0x00),
357 SMART_CMD(0x12),
358 SMART_DAT(0x01),
359 SMART_DAT(0xAE),
360 SMART_DELAY(40),
361
362 SMART_CMD(0x00),
363 SMART_CMD(0x10),
364 SMART_DAT(0x00),
365 SMART_DAT(0x00),
366 };
367
368 static uint16_t update_framedata[] = {
369 /* set display ram: 240*320 */
370 SMART_CMD(0x00), /* RAM address set(H) 0*/
371 SMART_CMD(0x20),
372 SMART_DAT(0x00),
373 SMART_DAT(0x00),
374 SMART_CMD(0x00), /* RAM address set(V) 4*/
375 SMART_CMD(0x21),
376 SMART_DAT(0x00),
377 SMART_DAT(0x00),
378 SMART_CMD(0x00), /* Start of Window RAM address set(H) 8 */
379 SMART_CMD(0x50),
380 SMART_DAT(0x00),
381 SMART_DAT(0x00),
382 SMART_CMD(0x00), /* End of Window RAM address set(H) 12 */
383 SMART_CMD(0x51),
384 SMART_DAT(0x00),
385 SMART_DAT(0xEF),
386 SMART_CMD(0x00), /* Start of Window RAM address set(V) 16 */
387 SMART_CMD(0x52),
388 SMART_DAT(0x00),
389 SMART_DAT(0x00),
390 SMART_CMD(0x00), /* End of Window RAM address set(V) 20 */
391 SMART_CMD(0x53),
392 SMART_DAT(0x01),
393 SMART_DAT(0x3F),
394
395 /* wait for vsync cmd before transferring frame data */
396 SMART_CMD_WAIT_FOR_VSYNC,
397
398 /* write ram */
399 SMART_CMD(0x00),
400 SMART_CMD(0x22),
401
402 /* write frame data */
403 SMART_CMD_WRITE_FRAME,
404 };
405
ltm022a97a_lcd_power(int on,struct fb_var_screeninfo * var)406 static void ltm022a97a_lcd_power(int on, struct fb_var_screeninfo *var)
407 {
408 static int pin_requested = 0;
409 struct fb_info *info = container_of(var, struct fb_info, var);
410 int err;
411
412 if (!pin_requested) {
413 err = gpio_request(GPIO_LCD_RESET, "lcd reset");
414 if (err) {
415 pr_err("failed to request gpio for LCD reset\n");
416 return;
417 }
418
419 gpio_direction_output(GPIO_LCD_RESET, 0);
420 pin_requested = 1;
421 }
422
423 if (on) {
424 gpio_set_value(GPIO_LCD_RESET, 0); msleep(100);
425 gpio_set_value(GPIO_LCD_RESET, 1); msleep(10);
426
427 pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_power_on));
428 pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_panel_on));
429 } else {
430 pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_panel_off));
431 pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_power_off));
432 }
433
434 err = pxafb_smart_flush(info);
435 if (err)
436 pr_err("%s: timed out\n", __func__);
437 }
438
ltm022a97a_update(struct fb_info * info)439 static void ltm022a97a_update(struct fb_info *info)
440 {
441 pxafb_smart_queue(info, ARRAY_AND_SIZE(update_framedata));
442 pxafb_smart_flush(info);
443 }
444
445 static struct pxafb_mode_info toshiba_ltm022a97a_modes[] = {
446 [0] = {
447 .xres = 240,
448 .yres = 320,
449 .bpp = 16,
450 .a0csrd_set_hld = 30,
451 .a0cswr_set_hld = 30,
452 .wr_pulse_width = 30,
453 .rd_pulse_width = 30,
454 .op_hold_time = 30,
455 .cmd_inh_time = 60,
456
457 /* L_LCLK_A0 and L_LCLK_RD active low */
458 .sync = FB_SYNC_HOR_HIGH_ACT |
459 FB_SYNC_VERT_HIGH_ACT,
460 },
461 };
462
463 static struct pxafb_mach_info saar_lcd_info = {
464 .modes = toshiba_ltm022a97a_modes,
465 .num_modes = 1,
466 .lcd_conn = LCD_SMART_PANEL_8BPP | LCD_PCLK_EDGE_FALL,
467 .pxafb_lcd_power = ltm022a97a_lcd_power,
468 .smart_update = ltm022a97a_update,
469 };
470
saar_init_lcd(void)471 static void __init saar_init_lcd(void)
472 {
473 pxa_set_fb_info(NULL, &saar_lcd_info);
474 }
475 #else
saar_init_lcd(void)476 static inline void saar_init_lcd(void) {}
477 #endif
478
479 #if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE)
480 static struct da9034_backlight_pdata saar_da9034_backlight = {
481 .output_current = 4, /* 4mA */
482 };
483
484 static struct da903x_subdev_info saar_da9034_subdevs[] = {
485 [0] = {
486 .name = "da903x-backlight",
487 .id = DA9034_ID_WLED,
488 .platform_data = &saar_da9034_backlight,
489 },
490 };
491
492 static struct da903x_platform_data saar_da9034_info = {
493 .num_subdevs = ARRAY_SIZE(saar_da9034_subdevs),
494 .subdevs = saar_da9034_subdevs,
495 };
496
497 static struct i2c_board_info saar_i2c_info[] = {
498 [0] = {
499 .type = "da9034",
500 .addr = 0x34,
501 .platform_data = &saar_da9034_info,
502 .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO83)),
503 },
504 };
505
saar_init_i2c(void)506 static void __init saar_init_i2c(void)
507 {
508 pxa_set_i2c_info(NULL);
509 i2c_register_board_info(0, ARRAY_AND_SIZE(saar_i2c_info));
510 }
511 #else
saar_init_i2c(void)512 static inline void saar_init_i2c(void) {}
513 #endif
514
515 #if defined(CONFIG_MTD_ONENAND) || defined(CONFIG_MTD_ONENAND_MODULE)
516 static struct mtd_partition saar_onenand_partitions[] = {
517 {
518 .name = "bootloader",
519 .offset = 0,
520 .size = SZ_1M,
521 .mask_flags = MTD_WRITEABLE,
522 }, {
523 .name = "reserved",
524 .offset = MTDPART_OFS_APPEND,
525 .size = SZ_128K,
526 .mask_flags = MTD_WRITEABLE,
527 }, {
528 .name = "reserved",
529 .offset = MTDPART_OFS_APPEND,
530 .size = SZ_8M,
531 .mask_flags = MTD_WRITEABLE,
532 }, {
533 .name = "kernel",
534 .offset = MTDPART_OFS_APPEND,
535 .size = (SZ_2M + SZ_1M),
536 .mask_flags = 0,
537 }, {
538 .name = "filesystem",
539 .offset = MTDPART_OFS_APPEND,
540 .size = SZ_32M + SZ_16M,
541 .mask_flags = 0,
542 }
543 };
544
545 static struct onenand_platform_data saar_onenand_info = {
546 .parts = saar_onenand_partitions,
547 .nr_parts = ARRAY_SIZE(saar_onenand_partitions),
548 };
549
550 #define SMC_CS0_PHYS_BASE (0x10000000)
551
552 static struct resource saar_resource_onenand[] = {
553 [0] = {
554 .start = SMC_CS0_PHYS_BASE,
555 .end = SMC_CS0_PHYS_BASE + SZ_1M,
556 .flags = IORESOURCE_MEM,
557 },
558 };
559
560 static struct platform_device saar_device_onenand = {
561 .name = "onenand-flash",
562 .id = -1,
563 .dev = {
564 .platform_data = &saar_onenand_info,
565 },
566 .resource = saar_resource_onenand,
567 .num_resources = ARRAY_SIZE(saar_resource_onenand),
568 };
569
saar_init_onenand(void)570 static void __init saar_init_onenand(void)
571 {
572 platform_device_register(&saar_device_onenand);
573 }
574 #else
saar_init_onenand(void)575 static void __init saar_init_onenand(void) {}
576 #endif
577
saar_init(void)578 static void __init saar_init(void)
579 {
580 /* initialize MFP configurations */
581 pxa3xx_mfp_config(ARRAY_AND_SIZE(saar_mfp_cfg));
582
583 pxa_set_ffuart_info(NULL);
584 pxa_set_btuart_info(NULL);
585 pxa_set_stuart_info(NULL);
586
587 platform_device_register(&smc91x_device);
588 saar_init_onenand();
589
590 saar_init_i2c();
591 saar_init_lcd();
592 }
593
594 MACHINE_START(SAAR, "PXA930 Handheld Platform (aka SAAR)")
595 /* Maintainer: Eric Miao <eric.miao@marvell.com> */
596 .atag_offset = 0x100,
597 .map_io = pxa3xx_map_io,
598 .nr_irqs = PXA_NR_IRQS,
599 .init_irq = pxa3xx_init_irq,
600 .handle_irq = pxa3xx_handle_irq,
601 .init_time = pxa_timer_init,
602 .init_machine = saar_init,
603 .restart = pxa_restart,
604 MACHINE_END
605