1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Renesas - AP-325RXA
4  * (Compatible with Algo System ., LTD. - AP-320A)
5  *
6  * Copyright (C) 2008 Renesas Solutions Corp.
7  * Author : Yusuke Goda <goda.yuske@renesas.com>
8  */
9 
10 #include <asm/clock.h>
11 #include <asm/io.h>
12 #include <asm/suspend.h>
13 
14 #include <cpu/sh7723.h>
15 
16 #include <linux/dma-map-ops.h>
17 #include <linux/clkdev.h>
18 #include <linux/delay.h>
19 #include <linux/device.h>
20 #include <linux/gpio.h>
21 #include <linux/gpio/consumer.h>
22 #include <linux/gpio/machine.h>
23 #include <linux/i2c.h>
24 #include <linux/init.h>
25 #include <linux/interrupt.h>
26 #include <linux/memblock.h>
27 #include <linux/mfd/tmio.h>
28 #include <linux/mmc/host.h>
29 #include <linux/mtd/physmap.h>
30 #include <linux/mtd/sh_flctl.h>
31 #include <linux/platform_device.h>
32 #include <linux/regulator/fixed.h>
33 #include <linux/regulator/machine.h>
34 #include <linux/sh_intc.h>
35 #include <linux/smsc911x.h>
36 #include <linux/videodev2.h>
37 
38 #include <media/drv-intf/renesas-ceu.h>
39 #include <media/i2c/ov772x.h>
40 
41 #include <video/sh_mobile_lcdc.h>
42 
43 #define CEU_BUFFER_MEMORY_SIZE		(4 << 20)
44 static phys_addr_t ceu_dma_membase;
45 
46 /* Dummy supplies, where voltage doesn't matter */
47 static struct regulator_consumer_supply dummy_supplies[] = {
48 	REGULATOR_SUPPLY("vddvario", "smsc911x"),
49 	REGULATOR_SUPPLY("vdd33a", "smsc911x"),
50 };
51 
52 static struct smsc911x_platform_config smsc911x_config = {
53 	.phy_interface	= PHY_INTERFACE_MODE_MII,
54 	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
55 	.irq_type	= SMSC911X_IRQ_TYPE_OPEN_DRAIN,
56 	.flags		= SMSC911X_USE_32BIT,
57 };
58 
59 static struct resource smsc9118_resources[] = {
60 	[0] = {
61 		.start	= 0xb6080000,
62 		.end	= 0xb60fffff,
63 		.flags	= IORESOURCE_MEM,
64 	},
65 	[1] = {
66 		.start	= evt2irq(0x660),
67 		.end	= evt2irq(0x660),
68 		.flags	= IORESOURCE_IRQ,
69 	}
70 };
71 
72 static struct platform_device smsc9118_device = {
73 	.name		= "smsc911x",
74 	.id		= -1,
75 	.num_resources	= ARRAY_SIZE(smsc9118_resources),
76 	.resource	= smsc9118_resources,
77 	.dev		= {
78 		.platform_data = &smsc911x_config,
79 	},
80 };
81 
82 /*
83  * AP320 and AP325RXA has CPLD data in NOR Flash(0xA80000-0xABFFFF).
84  * If this area erased, this board can not boot.
85  */
86 static struct mtd_partition ap325rxa_nor_flash_partitions[] = {
87 	{
88 		.name = "uboot",
89 		.offset = 0,
90 		.size = (1 * 1024 * 1024),
91 		.mask_flags = MTD_WRITEABLE,	/* Read-only */
92 	}, {
93 		.name = "kernel",
94 		.offset = MTDPART_OFS_APPEND,
95 		.size = (2 * 1024 * 1024),
96 	}, {
97 		.name = "free-area0",
98 		.offset = MTDPART_OFS_APPEND,
99 		.size = ((7 * 1024 * 1024) + (512 * 1024)),
100 	}, {
101 		.name = "CPLD-Data",
102 		.offset = MTDPART_OFS_APPEND,
103 		.mask_flags = MTD_WRITEABLE,	/* Read-only */
104 		.size = (1024 * 128 * 2),
105 	}, {
106 		.name = "free-area1",
107 		.offset = MTDPART_OFS_APPEND,
108 		.size = MTDPART_SIZ_FULL,
109 	},
110 };
111 
112 static struct physmap_flash_data ap325rxa_nor_flash_data = {
113 	.width		= 2,
114 	.parts		= ap325rxa_nor_flash_partitions,
115 	.nr_parts	= ARRAY_SIZE(ap325rxa_nor_flash_partitions),
116 };
117 
118 static struct resource ap325rxa_nor_flash_resources[] = {
119 	[0] = {
120 		.name	= "NOR Flash",
121 		.start	= 0x00000000,
122 		.end	= 0x00ffffff,
123 		.flags	= IORESOURCE_MEM,
124 	}
125 };
126 
127 static struct platform_device ap325rxa_nor_flash_device = {
128 	.name		= "physmap-flash",
129 	.resource	= ap325rxa_nor_flash_resources,
130 	.num_resources	= ARRAY_SIZE(ap325rxa_nor_flash_resources),
131 	.dev		= {
132 		.platform_data = &ap325rxa_nor_flash_data,
133 	},
134 };
135 
136 static struct mtd_partition nand_partition_info[] = {
137 	{
138 		.name	= "nand_data",
139 		.offset	= 0,
140 		.size	= MTDPART_SIZ_FULL,
141 	},
142 };
143 
144 static struct resource nand_flash_resources[] = {
145 	[0] = {
146 		.start	= 0xa4530000,
147 		.end	= 0xa45300ff,
148 		.flags	= IORESOURCE_MEM,
149 	}
150 };
151 
152 static struct sh_flctl_platform_data nand_flash_data = {
153 	.parts		= nand_partition_info,
154 	.nr_parts	= ARRAY_SIZE(nand_partition_info),
155 	.flcmncr_val	= FCKSEL_E | TYPESEL_SET | NANWF_E,
156 	.has_hwecc	= 1,
157 };
158 
159 static struct platform_device nand_flash_device = {
160 	.name		= "sh_flctl",
161 	.resource	= nand_flash_resources,
162 	.num_resources	= ARRAY_SIZE(nand_flash_resources),
163 	.dev		= {
164 		.platform_data = &nand_flash_data,
165 	},
166 };
167 
168 #define FPGA_LCDREG	0xB4100180
169 #define FPGA_BKLREG	0xB4100212
170 #define FPGA_LCDREG_VAL	0x0018
171 #define PORT_MSELCRB	0xA4050182
172 #define PORT_HIZCRC	0xA405015C
173 #define PORT_DRVCRA	0xA405018A
174 #define PORT_DRVCRB	0xA405018C
175 
176 static int ap320_wvga_set_brightness(int brightness)
177 {
178 	if (brightness) {
179 		gpio_set_value(GPIO_PTS3, 0);
180 		__raw_writew(0x100, FPGA_BKLREG);
181 	} else {
182 		__raw_writew(0, FPGA_BKLREG);
183 		gpio_set_value(GPIO_PTS3, 1);
184 	}
185 
186 	return 0;
187 }
188 
189 static void ap320_wvga_power_on(void)
190 {
191 	msleep(100);
192 
193 	/* ASD AP-320/325 LCD ON */
194 	__raw_writew(FPGA_LCDREG_VAL, FPGA_LCDREG);
195 }
196 
197 static void ap320_wvga_power_off(void)
198 {
199 	/* ASD AP-320/325 LCD OFF */
200 	__raw_writew(0, FPGA_LCDREG);
201 }
202 
203 static const struct fb_videomode ap325rxa_lcdc_modes[] = {
204 	{
205 		.name = "LB070WV1",
206 		.xres = 800,
207 		.yres = 480,
208 		.left_margin = 32,
209 		.right_margin = 160,
210 		.hsync_len = 8,
211 		.upper_margin = 63,
212 		.lower_margin = 80,
213 		.vsync_len = 1,
214 		.sync = 0, /* hsync and vsync are active low */
215 	},
216 };
217 
218 static struct sh_mobile_lcdc_info lcdc_info = {
219 	.clock_source = LCDC_CLK_EXTERNAL,
220 	.ch[0] = {
221 		.chan = LCDC_CHAN_MAINLCD,
222 		.fourcc = V4L2_PIX_FMT_RGB565,
223 		.interface_type = RGB18,
224 		.clock_divider = 1,
225 		.lcd_modes = ap325rxa_lcdc_modes,
226 		.num_modes = ARRAY_SIZE(ap325rxa_lcdc_modes),
227 		.panel_cfg = {
228 			.width = 152,	/* 7.0 inch */
229 			.height = 91,
230 			.display_on = ap320_wvga_power_on,
231 			.display_off = ap320_wvga_power_off,
232 		},
233 		.bl_info = {
234 			.name = "sh_mobile_lcdc_bl",
235 			.max_brightness = 1,
236 			.set_brightness = ap320_wvga_set_brightness,
237 		},
238 	}
239 };
240 
241 static struct resource lcdc_resources[] = {
242 	[0] = {
243 		.name	= "LCDC",
244 		.start	= 0xfe940000, /* P4-only space */
245 		.end	= 0xfe942fff,
246 		.flags	= IORESOURCE_MEM,
247 	},
248 	[1] = {
249 		.start	= evt2irq(0x580),
250 		.flags	= IORESOURCE_IRQ,
251 	},
252 };
253 
254 static struct platform_device lcdc_device = {
255 	.name		= "sh_mobile_lcdc_fb",
256 	.num_resources	= ARRAY_SIZE(lcdc_resources),
257 	.resource	= lcdc_resources,
258 	.dev		= {
259 		.platform_data	= &lcdc_info,
260 	},
261 };
262 
263 /* Powerdown/reset gpios for CEU image sensors */
264 static struct gpiod_lookup_table ov7725_gpios = {
265 	.dev_id		= "0-0021",
266 	.table		= {
267 		GPIO_LOOKUP("sh7723_pfc", GPIO_PTZ5, "reset", GPIO_ACTIVE_LOW),
268 	},
269 };
270 
271 static struct ceu_platform_data ceu0_pdata = {
272 	.num_subdevs			= 1,
273 	.subdevs = {
274 		{ /* [0] = ov7725  */
275 			.flags		= 0,
276 			.bus_width	= 8,
277 			.bus_shift	= 0,
278 			.i2c_adapter_id	= 0,
279 			.i2c_address	= 0x21,
280 		},
281 	},
282 };
283 
284 static struct resource ceu_resources[] = {
285 	[0] = {
286 		.name	= "CEU",
287 		.start	= 0xfe910000,
288 		.end	= 0xfe91009f,
289 		.flags	= IORESOURCE_MEM,
290 	},
291 	[1] = {
292 		.start  = evt2irq(0x880),
293 		.flags  = IORESOURCE_IRQ,
294 	},
295 };
296 
297 static struct platform_device ap325rxa_ceu_device = {
298 	.name		= "renesas-ceu",
299 	.id             = 0, /* "ceu.0" clock */
300 	.num_resources	= ARRAY_SIZE(ceu_resources),
301 	.resource	= ceu_resources,
302 	.dev		= {
303 		.platform_data	= &ceu0_pdata,
304 	},
305 };
306 
307 /* Fixed 3.3V regulators to be used by SDHI0, SDHI1 */
308 static struct regulator_consumer_supply fixed3v3_power_consumers[] =
309 {
310 	REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
311 	REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"),
312 	REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.1"),
313 	REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.1"),
314 };
315 
316 static struct resource sdhi0_cn3_resources[] = {
317 	[0] = {
318 		.name	= "SDHI0",
319 		.start	= 0x04ce0000,
320 		.end	= 0x04ce00ff,
321 		.flags	= IORESOURCE_MEM,
322 	},
323 	[1] = {
324 		.start	= evt2irq(0xe80),
325 		.flags  = IORESOURCE_IRQ,
326 	},
327 };
328 
329 static struct tmio_mmc_data sdhi0_cn3_data = {
330 	.capabilities	= MMC_CAP_SDIO_IRQ,
331 };
332 
333 static struct platform_device sdhi0_cn3_device = {
334 	.name		= "sh_mobile_sdhi",
335 	.id             = 0, /* "sdhi0" clock */
336 	.num_resources	= ARRAY_SIZE(sdhi0_cn3_resources),
337 	.resource	= sdhi0_cn3_resources,
338 	.dev = {
339 		.platform_data = &sdhi0_cn3_data,
340 	},
341 };
342 
343 static struct resource sdhi1_cn7_resources[] = {
344 	[0] = {
345 		.name	= "SDHI1",
346 		.start	= 0x04cf0000,
347 		.end	= 0x04cf00ff,
348 		.flags	= IORESOURCE_MEM,
349 	},
350 	[1] = {
351 		.start	= evt2irq(0x4e0),
352 		.flags  = IORESOURCE_IRQ,
353 	},
354 };
355 
356 static struct tmio_mmc_data sdhi1_cn7_data = {
357 	.capabilities	= MMC_CAP_SDIO_IRQ,
358 };
359 
360 static struct platform_device sdhi1_cn7_device = {
361 	.name		= "sh_mobile_sdhi",
362 	.id             = 1, /* "sdhi1" clock */
363 	.num_resources	= ARRAY_SIZE(sdhi1_cn7_resources),
364 	.resource	= sdhi1_cn7_resources,
365 	.dev = {
366 		.platform_data = &sdhi1_cn7_data,
367 	},
368 };
369 
370 static struct ov772x_camera_info ov7725_info = {
371 	.flags		= OV772X_FLAG_VFLIP | OV772X_FLAG_HFLIP,
372 	.edgectrl	= OV772X_AUTO_EDGECTRL(0xf, 0),
373 };
374 
375 static struct i2c_board_info ap325rxa_i2c_devices[] __initdata = {
376 	{
377 		I2C_BOARD_INFO("pcf8563", 0x51),
378 	},
379 	{
380 		I2C_BOARD_INFO("ov772x", 0x21),
381 		.platform_data = &ov7725_info,
382 	},
383 };
384 
385 static struct platform_device *ap325rxa_devices[] __initdata = {
386 	&smsc9118_device,
387 	&ap325rxa_nor_flash_device,
388 	&lcdc_device,
389 	&nand_flash_device,
390 	&sdhi0_cn3_device,
391 	&sdhi1_cn7_device,
392 };
393 
394 extern char ap325rxa_sdram_enter_start;
395 extern char ap325rxa_sdram_enter_end;
396 extern char ap325rxa_sdram_leave_start;
397 extern char ap325rxa_sdram_leave_end;
398 
399 static int __init ap325rxa_devices_setup(void)
400 {
401 	/* register board specific self-refresh code */
402 	sh_mobile_register_self_refresh(SUSP_SH_STANDBY | SUSP_SH_SF,
403 					&ap325rxa_sdram_enter_start,
404 					&ap325rxa_sdram_enter_end,
405 					&ap325rxa_sdram_leave_start,
406 					&ap325rxa_sdram_leave_end);
407 
408 	regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers,
409 				     ARRAY_SIZE(fixed3v3_power_consumers), 3300000);
410 	regulator_register_fixed(1, dummy_supplies, ARRAY_SIZE(dummy_supplies));
411 
412 	/* LD3 and LD4 LEDs */
413 	gpio_request(GPIO_PTX5, NULL); /* RUN */
414 	gpio_direction_output(GPIO_PTX5, 1);
415 	gpiod_export(gpio_to_desc(GPIO_PTX5), 0);
416 
417 	gpio_request(GPIO_PTX4, NULL); /* INDICATOR */
418 	gpio_direction_output(GPIO_PTX4, 0);
419 	gpiod_export(gpio_to_desc(GPIO_PTX4), 0);
420 
421 	/* SW1 input */
422 	gpio_request(GPIO_PTF7, NULL); /* MODE */
423 	gpio_direction_input(GPIO_PTF7);
424 	gpiod_export(gpio_to_desc(GPIO_PTF7), 0);
425 
426 	/* LCDC */
427 	gpio_request(GPIO_FN_LCDD15, NULL);
428 	gpio_request(GPIO_FN_LCDD14, NULL);
429 	gpio_request(GPIO_FN_LCDD13, NULL);
430 	gpio_request(GPIO_FN_LCDD12, NULL);
431 	gpio_request(GPIO_FN_LCDD11, NULL);
432 	gpio_request(GPIO_FN_LCDD10, NULL);
433 	gpio_request(GPIO_FN_LCDD9, NULL);
434 	gpio_request(GPIO_FN_LCDD8, NULL);
435 	gpio_request(GPIO_FN_LCDD7, NULL);
436 	gpio_request(GPIO_FN_LCDD6, NULL);
437 	gpio_request(GPIO_FN_LCDD5, NULL);
438 	gpio_request(GPIO_FN_LCDD4, NULL);
439 	gpio_request(GPIO_FN_LCDD3, NULL);
440 	gpio_request(GPIO_FN_LCDD2, NULL);
441 	gpio_request(GPIO_FN_LCDD1, NULL);
442 	gpio_request(GPIO_FN_LCDD0, NULL);
443 	gpio_request(GPIO_FN_LCDLCLK_PTR, NULL);
444 	gpio_request(GPIO_FN_LCDDCK, NULL);
445 	gpio_request(GPIO_FN_LCDVEPWC, NULL);
446 	gpio_request(GPIO_FN_LCDVCPWC, NULL);
447 	gpio_request(GPIO_FN_LCDVSYN, NULL);
448 	gpio_request(GPIO_FN_LCDHSYN, NULL);
449 	gpio_request(GPIO_FN_LCDDISP, NULL);
450 	gpio_request(GPIO_FN_LCDDON, NULL);
451 
452 	/* LCD backlight */
453 	gpio_request(GPIO_PTS3, NULL);
454 	gpio_direction_output(GPIO_PTS3, 1);
455 
456 	/* CEU */
457 	gpio_request(GPIO_FN_VIO_CLK2, NULL);
458 	gpio_request(GPIO_FN_VIO_VD2, NULL);
459 	gpio_request(GPIO_FN_VIO_HD2, NULL);
460 	gpio_request(GPIO_FN_VIO_FLD, NULL);
461 	gpio_request(GPIO_FN_VIO_CKO, NULL);
462 	gpio_request(GPIO_FN_VIO_D15, NULL);
463 	gpio_request(GPIO_FN_VIO_D14, NULL);
464 	gpio_request(GPIO_FN_VIO_D13, NULL);
465 	gpio_request(GPIO_FN_VIO_D12, NULL);
466 	gpio_request(GPIO_FN_VIO_D11, NULL);
467 	gpio_request(GPIO_FN_VIO_D10, NULL);
468 	gpio_request(GPIO_FN_VIO_D9, NULL);
469 	gpio_request(GPIO_FN_VIO_D8, NULL);
470 
471 	gpio_request(GPIO_PTZ7, NULL);
472 	gpio_direction_output(GPIO_PTZ7, 0); /* OE_CAM */
473 	gpio_request(GPIO_PTZ6, NULL);
474 	gpio_direction_output(GPIO_PTZ6, 0); /* STBY_CAM */
475 	gpio_request(GPIO_PTZ5, NULL);
476 	gpio_direction_output(GPIO_PTZ5, 0); /* RST_CAM */
477 	gpio_request(GPIO_PTZ4, NULL);
478 	gpio_direction_output(GPIO_PTZ4, 0); /* SADDR */
479 
480 	__raw_writew(__raw_readw(PORT_MSELCRB) & ~0x0001, PORT_MSELCRB);
481 
482 	/* FLCTL */
483 	gpio_request(GPIO_FN_FCE, NULL);
484 	gpio_request(GPIO_FN_NAF7, NULL);
485 	gpio_request(GPIO_FN_NAF6, NULL);
486 	gpio_request(GPIO_FN_NAF5, NULL);
487 	gpio_request(GPIO_FN_NAF4, NULL);
488 	gpio_request(GPIO_FN_NAF3, NULL);
489 	gpio_request(GPIO_FN_NAF2, NULL);
490 	gpio_request(GPIO_FN_NAF1, NULL);
491 	gpio_request(GPIO_FN_NAF0, NULL);
492 	gpio_request(GPIO_FN_FCDE, NULL);
493 	gpio_request(GPIO_FN_FOE, NULL);
494 	gpio_request(GPIO_FN_FSC, NULL);
495 	gpio_request(GPIO_FN_FWE, NULL);
496 	gpio_request(GPIO_FN_FRB, NULL);
497 
498 	__raw_writew(0, PORT_HIZCRC);
499 	__raw_writew(0xFFFF, PORT_DRVCRA);
500 	__raw_writew(0xFFFF, PORT_DRVCRB);
501 
502 	/* SDHI0 - CN3 - SD CARD */
503 	gpio_request(GPIO_FN_SDHI0CD_PTD, NULL);
504 	gpio_request(GPIO_FN_SDHI0WP_PTD, NULL);
505 	gpio_request(GPIO_FN_SDHI0D3_PTD, NULL);
506 	gpio_request(GPIO_FN_SDHI0D2_PTD, NULL);
507 	gpio_request(GPIO_FN_SDHI0D1_PTD, NULL);
508 	gpio_request(GPIO_FN_SDHI0D0_PTD, NULL);
509 	gpio_request(GPIO_FN_SDHI0CMD_PTD, NULL);
510 	gpio_request(GPIO_FN_SDHI0CLK_PTD, NULL);
511 
512 	/* SDHI1 - CN7 - MICRO SD CARD */
513 	gpio_request(GPIO_FN_SDHI1CD, NULL);
514 	gpio_request(GPIO_FN_SDHI1D3, NULL);
515 	gpio_request(GPIO_FN_SDHI1D2, NULL);
516 	gpio_request(GPIO_FN_SDHI1D1, NULL);
517 	gpio_request(GPIO_FN_SDHI1D0, NULL);
518 	gpio_request(GPIO_FN_SDHI1CMD, NULL);
519 	gpio_request(GPIO_FN_SDHI1CLK, NULL);
520 
521 	/* Add a clock alias for ov7725 xclk source. */
522 	clk_add_alias(NULL, "0-0021", "video_clk", NULL);
523 
524 	/* Register RSTB gpio for ov7725 camera sensor. */
525 	gpiod_add_lookup_table(&ov7725_gpios);
526 
527 	i2c_register_board_info(0, ap325rxa_i2c_devices,
528 				ARRAY_SIZE(ap325rxa_i2c_devices));
529 
530 	/* Initialize CEU platform device separately to map memory first */
531 	device_initialize(&ap325rxa_ceu_device.dev);
532 	dma_declare_coherent_memory(&ap325rxa_ceu_device.dev,
533 			ceu_dma_membase, ceu_dma_membase,
534 			CEU_BUFFER_MEMORY_SIZE);
535 
536 	platform_device_add(&ap325rxa_ceu_device);
537 
538 	return platform_add_devices(ap325rxa_devices,
539 				ARRAY_SIZE(ap325rxa_devices));
540 }
541 arch_initcall(ap325rxa_devices_setup);
542 
543 /* Return the board specific boot mode pin configuration */
544 static int ap325rxa_mode_pins(void)
545 {
546 	/* MD0=0, MD1=0, MD2=0: Clock Mode 0
547 	 * MD3=0: 16-bit Area0 Bus Width
548 	 * MD5=1: Little Endian
549 	 * TSTMD=1, MD8=1: Test Mode Disabled
550 	 */
551 	return MODE_PIN5 | MODE_PIN8;
552 }
553 
554 /* Reserve a portion of memory for CEU buffers */
555 static void __init ap325rxa_mv_mem_reserve(void)
556 {
557 	phys_addr_t phys;
558 	phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
559 
560 	phys = memblock_phys_alloc(size, PAGE_SIZE);
561 	if (!phys)
562 		panic("Failed to allocate CEU memory\n");
563 
564 	memblock_phys_free(phys, size);
565 	memblock_remove(phys, size);
566 
567 	ceu_dma_membase = phys;
568 }
569 
570 static struct sh_machine_vector mv_ap325rxa __initmv = {
571 	.mv_name = "AP-325RXA",
572 	.mv_mode_pins = ap325rxa_mode_pins,
573 	.mv_mem_reserve	= ap325rxa_mv_mem_reserve,
574 };
575