1/*
2 * mach-imx27_visstrim_m10.c
3 *
4 * Copyright 2010  Javier Martin <javier.martin@vista-silicon.com>
5 *
6 * Based on mach-pcm038.c, mach-pca100.c, mach-mx27ads.c and others.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
21 * MA 02110-1301, USA.
22 */
23
24#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
25
26#include <linux/platform_device.h>
27#include <linux/mtd/physmap.h>
28#include <linux/i2c.h>
29#include <linux/platform_data/pca953x.h>
30#include <linux/input.h>
31#include <linux/gpio.h>
32#include <linux/delay.h>
33#include <linux/dma-mapping.h>
34#include <linux/leds.h>
35#include <linux/platform_data/asoc-mx27vis.h>
36#include <media/soc_camera.h>
37#include <sound/tlv320aic32x4.h>
38#include <asm/mach-types.h>
39#include <asm/mach/arch.h>
40#include <asm/mach/time.h>
41#include <asm/system_info.h>
42#include <asm/memblock.h>
43
44#include "common.h"
45#include "devices-imx27.h"
46#include "ehci.h"
47#include "hardware.h"
48#include "iomux-mx27.h"
49
50#define TVP5150_RSTN (GPIO_PORTC + 18)
51#define TVP5150_PWDN (GPIO_PORTC + 19)
52#define OTG_PHY_CS_GPIO (GPIO_PORTF + 17)
53#define SDHC1_IRQ_GPIO IMX_GPIO_NR(2, 25)
54
55#define VERSION_MASK		0x7
56#define MOTHERBOARD_SHIFT	4
57#define EXPBOARD_SHIFT		0
58
59#define MOTHERBOARD_BIT2	(GPIO_PORTD + 31)
60#define MOTHERBOARD_BIT1	(GPIO_PORTD + 30)
61#define MOTHERBOARD_BIT0	(GPIO_PORTD + 29)
62
63#define EXPBOARD_BIT2		(GPIO_PORTD + 25)
64#define EXPBOARD_BIT1		(GPIO_PORTD + 27)
65#define EXPBOARD_BIT0		(GPIO_PORTD + 28)
66
67#define AMP_GAIN_0		(GPIO_PORTF + 9)
68#define AMP_GAIN_1		(GPIO_PORTF + 8)
69#define AMP_MUTE_SDL		(GPIO_PORTE + 5)
70#define AMP_MUTE_SDR		(GPIO_PORTF + 7)
71
72static const int visstrim_m10_pins[] __initconst = {
73	/* UART1 (console) */
74	PE12_PF_UART1_TXD,
75	PE13_PF_UART1_RXD,
76	PE14_PF_UART1_CTS,
77	PE15_PF_UART1_RTS,
78	/* FEC */
79	PD0_AIN_FEC_TXD0,
80	PD1_AIN_FEC_TXD1,
81	PD2_AIN_FEC_TXD2,
82	PD3_AIN_FEC_TXD3,
83	PD4_AOUT_FEC_RX_ER,
84	PD5_AOUT_FEC_RXD1,
85	PD6_AOUT_FEC_RXD2,
86	PD7_AOUT_FEC_RXD3,
87	PD8_AF_FEC_MDIO,
88	PD9_AIN_FEC_MDC,
89	PD10_AOUT_FEC_CRS,
90	PD11_AOUT_FEC_TX_CLK,
91	PD12_AOUT_FEC_RXD0,
92	PD13_AOUT_FEC_RX_DV,
93	PD14_AOUT_FEC_RX_CLK,
94	PD15_AOUT_FEC_COL,
95	PD16_AIN_FEC_TX_ER,
96	PF23_AIN_FEC_TX_EN,
97	/* SSI1 */
98	PC20_PF_SSI1_FS,
99	PC21_PF_SSI1_RXD,
100	PC22_PF_SSI1_TXD,
101	PC23_PF_SSI1_CLK,
102	/* SDHC1 */
103	PE18_PF_SD1_D0,
104	PE19_PF_SD1_D1,
105	PE20_PF_SD1_D2,
106	PE21_PF_SD1_D3,
107	PE22_PF_SD1_CMD,
108	PE23_PF_SD1_CLK,
109	/* Both I2Cs */
110	PD17_PF_I2C_DATA,
111	PD18_PF_I2C_CLK,
112	PC5_PF_I2C2_SDA,
113	PC6_PF_I2C2_SCL,
114	/* USB OTG */
115	OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
116	PC9_PF_USBOTG_DATA0,
117	PC11_PF_USBOTG_DATA1,
118	PC10_PF_USBOTG_DATA2,
119	PC13_PF_USBOTG_DATA3,
120	PC12_PF_USBOTG_DATA4,
121	PC7_PF_USBOTG_DATA5,
122	PC8_PF_USBOTG_DATA6,
123	PE25_PF_USBOTG_DATA7,
124	PE24_PF_USBOTG_CLK,
125	PE2_PF_USBOTG_DIR,
126	PE0_PF_USBOTG_NXT,
127	PE1_PF_USBOTG_STP,
128	PB23_PF_USB_PWR,
129	PB24_PF_USB_OC,
130	/* CSI */
131	TVP5150_RSTN | GPIO_GPIO | GPIO_OUT,
132	TVP5150_PWDN | GPIO_GPIO | GPIO_OUT,
133	PB10_PF_CSI_D0,
134	PB11_PF_CSI_D1,
135	PB12_PF_CSI_D2,
136	PB13_PF_CSI_D3,
137	PB14_PF_CSI_D4,
138	PB15_PF_CSI_MCLK,
139	PB16_PF_CSI_PIXCLK,
140	PB17_PF_CSI_D5,
141	PB18_PF_CSI_D6,
142	PB19_PF_CSI_D7,
143	PB20_PF_CSI_VSYNC,
144	PB21_PF_CSI_HSYNC,
145	/* mother board version */
146	MOTHERBOARD_BIT2 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
147	MOTHERBOARD_BIT1 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
148	MOTHERBOARD_BIT0 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
149	/* expansion board version */
150	EXPBOARD_BIT2 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
151	EXPBOARD_BIT1 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
152	EXPBOARD_BIT0 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
153	/* Audio AMP control */
154	AMP_GAIN_0 | GPIO_GPIO | GPIO_OUT,
155	AMP_GAIN_1 | GPIO_GPIO | GPIO_OUT,
156	AMP_MUTE_SDL | GPIO_GPIO | GPIO_OUT,
157	AMP_MUTE_SDR | GPIO_GPIO | GPIO_OUT,
158};
159
160static struct gpio visstrim_m10_version_gpios[] = {
161	{ EXPBOARD_BIT0, GPIOF_IN, "exp-version-0" },
162	{ EXPBOARD_BIT1, GPIOF_IN, "exp-version-1" },
163	{ EXPBOARD_BIT2, GPIOF_IN, "exp-version-2" },
164	{ MOTHERBOARD_BIT0, GPIOF_IN, "mother-version-0" },
165	{ MOTHERBOARD_BIT1, GPIOF_IN, "mother-version-1" },
166	{ MOTHERBOARD_BIT2, GPIOF_IN, "mother-version-2" },
167};
168
169static const struct gpio visstrim_m10_gpios[] __initconst = {
170	{
171		.gpio = TVP5150_RSTN,
172		.flags = GPIOF_DIR_OUT | GPIOF_INIT_HIGH,
173		.label = "tvp5150_rstn",
174	},
175	{
176		.gpio = TVP5150_PWDN,
177		.flags = GPIOF_DIR_OUT | GPIOF_INIT_LOW,
178		.label = "tvp5150_pwdn",
179	},
180	{
181		.gpio = OTG_PHY_CS_GPIO,
182		.flags = GPIOF_DIR_OUT | GPIOF_INIT_LOW,
183		.label = "usbotg_cs",
184	},
185	{
186		.gpio = AMP_GAIN_0,
187		.flags = GPIOF_DIR_OUT,
188		.label = "amp-gain-0",
189	},
190	{
191		.gpio = AMP_GAIN_1,
192		.flags = GPIOF_DIR_OUT,
193		.label = "amp-gain-1",
194	},
195	{
196		.gpio = AMP_MUTE_SDL,
197		.flags = GPIOF_DIR_OUT,
198		.label = "amp-mute-sdl",
199	},
200	{
201		.gpio = AMP_MUTE_SDR,
202		.flags = GPIOF_DIR_OUT,
203		.label = "amp-mute-sdr",
204	},
205};
206
207/* Camera */
208static int visstrim_camera_power(struct device *dev, int on)
209{
210	gpio_set_value(TVP5150_PWDN, on);
211
212	return 0;
213};
214
215static int visstrim_camera_reset(struct device *dev)
216{
217	gpio_set_value(TVP5150_RSTN, 0);
218	ndelay(500);
219	gpio_set_value(TVP5150_RSTN, 1);
220
221	return 0;
222};
223
224static struct i2c_board_info visstrim_i2c_camera =  {
225	I2C_BOARD_INFO("tvp5150", 0x5d),
226};
227
228static struct soc_camera_link iclink_tvp5150 = {
229	.bus_id         = 0,
230	.board_info     = &visstrim_i2c_camera,
231	.i2c_adapter_id = 0,
232	.power = visstrim_camera_power,
233	.reset = visstrim_camera_reset,
234};
235
236static struct mx2_camera_platform_data visstrim_camera = {
237	.flags = MX2_CAMERA_CCIR | MX2_CAMERA_CCIR_INTERLACE |
238		 MX2_CAMERA_PCLK_SAMPLE_RISING,
239	.clk = 100000,
240};
241
242static phys_addr_t mx2_camera_base __initdata;
243#define MX2_CAMERA_BUF_SIZE SZ_8M
244
245static void __init visstrim_analog_camera_init(void)
246{
247	struct platform_device *pdev;
248	int dma;
249
250	gpio_set_value(TVP5150_PWDN, 1);
251	ndelay(1);
252	gpio_set_value(TVP5150_RSTN, 0);
253	ndelay(500);
254	gpio_set_value(TVP5150_RSTN, 1);
255	ndelay(200000);
256
257	pdev = imx27_add_mx2_camera(&visstrim_camera);
258	if (IS_ERR(pdev))
259		return;
260
261	dma = dma_declare_coherent_memory(&pdev->dev,
262				mx2_camera_base, mx2_camera_base,
263				MX2_CAMERA_BUF_SIZE,
264				DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
265	if (!(dma & DMA_MEMORY_MAP))
266		return;
267}
268
269static void __init visstrim_reserve(void)
270{
271	/* reserve 4 MiB for mx2-camera */
272	mx2_camera_base = arm_memblock_steal(3 * MX2_CAMERA_BUF_SIZE,
273			MX2_CAMERA_BUF_SIZE);
274}
275
276/* GPIOs used as events for applications */
277static struct gpio_keys_button visstrim_gpio_keys[] = {
278	{
279		.type	= EV_KEY,
280		.code	= KEY_RESTART,
281		.gpio	= (GPIO_PORTC + 15),
282		.desc	= "Default config",
283		.active_low = 0,
284		.wakeup = 1,
285	},
286	{
287		.type	= EV_KEY,
288		.code	= KEY_RECORD,
289		.gpio	= (GPIO_PORTF + 14),
290		.desc	= "Record",
291		.active_low = 0,
292		.wakeup = 1,
293	},
294	{
295		.type   = EV_KEY,
296		.code   = KEY_STOP,
297		.gpio   = (GPIO_PORTF + 13),
298		.desc   = "Stop",
299		.active_low = 0,
300		.wakeup = 1,
301	}
302};
303
304static const struct gpio_keys_platform_data
305		visstrim_gpio_keys_platform_data __initconst = {
306	.buttons	= visstrim_gpio_keys,
307	.nbuttons	= ARRAY_SIZE(visstrim_gpio_keys),
308};
309
310/* led */
311static const struct gpio_led visstrim_m10_leds[] __initconst = {
312	{
313		.name = "visstrim:ld0",
314		.default_trigger = "nand-disk",
315		.gpio = (GPIO_PORTC + 29),
316	},
317	{
318		.name = "visstrim:ld1",
319		.default_trigger = "nand-disk",
320		.gpio = (GPIO_PORTC + 24),
321	},
322	{
323		.name = "visstrim:ld2",
324		.default_trigger = "nand-disk",
325		.gpio = (GPIO_PORTC + 28),
326	},
327	{
328		.name = "visstrim:ld3",
329		.default_trigger = "nand-disk",
330		.gpio = (GPIO_PORTC + 25),
331	},
332};
333
334static const struct gpio_led_platform_data visstrim_m10_led_data __initconst = {
335	.leds = visstrim_m10_leds,
336	.num_leds = ARRAY_SIZE(visstrim_m10_leds),
337};
338
339/* Visstrim_SM10 has a microSD slot connected to sdhc1 */
340static int visstrim_m10_sdhc1_init(struct device *dev,
341		irq_handler_t detect_irq, void *data)
342{
343	int ret;
344
345	ret = request_irq(gpio_to_irq(SDHC1_IRQ_GPIO), detect_irq,
346			  IRQF_TRIGGER_FALLING, "mmc-detect", data);
347	return ret;
348}
349
350static void visstrim_m10_sdhc1_exit(struct device *dev, void *data)
351{
352	free_irq(gpio_to_irq(SDHC1_IRQ_GPIO), data);
353}
354
355static const struct imxmmc_platform_data visstrim_m10_sdhc_pdata __initconst = {
356	.init = visstrim_m10_sdhc1_init,
357	.exit = visstrim_m10_sdhc1_exit,
358};
359
360/* Visstrim_SM10 NOR flash */
361static struct physmap_flash_data visstrim_m10_flash_data = {
362	.width = 2,
363};
364
365static struct resource visstrim_m10_flash_resource = {
366	.start = 0xc0000000,
367	.end = 0xc0000000 + SZ_64M - 1,
368	.flags = IORESOURCE_MEM,
369};
370
371static struct platform_device visstrim_m10_nor_mtd_device = {
372	.name = "physmap-flash",
373	.id = 0,
374	.dev = {
375		.platform_data = &visstrim_m10_flash_data,
376	},
377	.num_resources = 1,
378	.resource = &visstrim_m10_flash_resource,
379};
380
381static struct platform_device *platform_devices[] __initdata = {
382	&visstrim_m10_nor_mtd_device,
383};
384
385/* Visstrim_M10 uses UART0 as console */
386static const struct imxuart_platform_data uart_pdata __initconst = {
387	.flags = IMXUART_HAVE_RTSCTS,
388};
389
390/* I2C */
391static const struct imxi2c_platform_data visstrim_m10_i2c_data __initconst = {
392	.bitrate = 100000,
393};
394
395static struct pca953x_platform_data visstrim_m10_pca9555_pdata = {
396	.gpio_base = 240, /* After MX27 internal GPIOs */
397	.invert = 0,
398};
399
400static struct aic32x4_pdata visstrim_m10_aic32x4_pdata = {
401	.power_cfg = AIC32X4_PWR_MICBIAS_2075_LDOIN |
402		     AIC32X4_PWR_AVDD_DVDD_WEAK_DISABLE |
403		     AIC32X4_PWR_AIC32X4_LDO_ENABLE |
404		     AIC32X4_PWR_CMMODE_LDOIN_RANGE_18_36 |
405		     AIC32X4_PWR_CMMODE_HP_LDOIN_POWERED,
406	.micpga_routing = AIC32X4_MICPGA_ROUTE_LMIC_IN2R_10K |
407			 AIC32X4_MICPGA_ROUTE_RMIC_IN1L_10K,
408	.swapdacs = false,
409};
410
411static struct i2c_board_info visstrim_m10_i2c_devices[] = {
412	{
413		I2C_BOARD_INFO("pca9555", 0x20),
414		.platform_data = &visstrim_m10_pca9555_pdata,
415	},
416	{
417		I2C_BOARD_INFO("tlv320aic32x4", 0x18),
418		.platform_data = &visstrim_m10_aic32x4_pdata,
419	},
420	{
421		 I2C_BOARD_INFO("m41t00", 0x68),
422	}
423};
424
425/* USB OTG */
426static int otg_phy_init(struct platform_device *pdev)
427{
428	return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
429}
430
431static const struct mxc_usbh_platform_data
432visstrim_m10_usbotg_pdata __initconst = {
433	.init = otg_phy_init,
434	.portsc	= MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
435};
436
437/* SSI */
438static const struct imx_ssi_platform_data visstrim_m10_ssi_pdata __initconst = {
439	.flags			= IMX_SSI_DMA | IMX_SSI_SYN,
440};
441
442/* coda */
443
444static void __init visstrim_coda_init(void)
445{
446	struct platform_device *pdev;
447	int dma;
448
449	pdev = imx27_add_coda();
450	dma = dma_declare_coherent_memory(&pdev->dev,
451					  mx2_camera_base + MX2_CAMERA_BUF_SIZE,
452					  mx2_camera_base + MX2_CAMERA_BUF_SIZE,
453					  MX2_CAMERA_BUF_SIZE,
454					  DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
455	if (!(dma & DMA_MEMORY_MAP))
456		return;
457}
458
459/* DMA deinterlace */
460static struct platform_device visstrim_deinterlace = {
461	.name = "m2m-deinterlace",
462	.id = 0,
463};
464
465static void __init visstrim_deinterlace_init(void)
466{
467	int ret = -ENOMEM;
468	struct platform_device *pdev = &visstrim_deinterlace;
469	int dma;
470
471	ret = platform_device_register(pdev);
472
473	dma = dma_declare_coherent_memory(&pdev->dev,
474					  mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE,
475					  mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE,
476					  MX2_CAMERA_BUF_SIZE,
477					  DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
478	if (!(dma & DMA_MEMORY_MAP))
479		return;
480}
481
482/* Emma-PrP for format conversion */
483static void __init visstrim_emmaprp_init(void)
484{
485	struct platform_device *pdev;
486	int dma;
487
488	pdev = imx27_add_mx2_emmaprp();
489	if (IS_ERR(pdev))
490		return;
491
492	/*
493	 * Use the same memory area as the analog camera since both
494	 * devices are, by nature, exclusive.
495	 */
496	dma = dma_declare_coherent_memory(&pdev->dev,
497				mx2_camera_base, mx2_camera_base,
498				MX2_CAMERA_BUF_SIZE,
499				DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
500	if (!(dma & DMA_MEMORY_MAP))
501		pr_err("Failed to declare memory for emmaprp\n");
502}
503
504/* Audio */
505static const struct snd_mx27vis_platform_data snd_mx27vis_pdata __initconst = {
506	.amp_gain0_gpio = AMP_GAIN_0,
507	.amp_gain1_gpio = AMP_GAIN_1,
508	.amp_mutel_gpio = AMP_MUTE_SDL,
509	.amp_muter_gpio = AMP_MUTE_SDR,
510};
511
512static void __init visstrim_m10_revision(void)
513{
514	int exp_version = 0;
515	int mo_version = 0;
516	int ret;
517
518	ret = gpio_request_array(visstrim_m10_version_gpios,
519				 ARRAY_SIZE(visstrim_m10_version_gpios));
520	if (ret) {
521		pr_err("Failed to request version gpios");
522		return;
523	}
524
525	/* Get expansion board version (negative logic) */
526	exp_version |= !gpio_get_value(EXPBOARD_BIT2) << 2;
527	exp_version |= !gpio_get_value(EXPBOARD_BIT1) << 1;
528	exp_version |= !gpio_get_value(EXPBOARD_BIT0);
529
530	/* Get mother board version (negative logic) */
531	mo_version |= !gpio_get_value(MOTHERBOARD_BIT2) << 2;
532	mo_version |= !gpio_get_value(MOTHERBOARD_BIT1) << 1;
533	mo_version |= !gpio_get_value(MOTHERBOARD_BIT0);
534
535	system_rev = 0x27000;
536	system_rev |= (mo_version << MOTHERBOARD_SHIFT);
537	system_rev |= (exp_version << EXPBOARD_SHIFT);
538}
539
540static void __init visstrim_m10_board_init(void)
541{
542	int ret;
543	int mo_version;
544
545	imx27_soc_init();
546	visstrim_m10_revision();
547
548	ret = mxc_gpio_setup_multiple_pins(visstrim_m10_pins,
549			ARRAY_SIZE(visstrim_m10_pins), "VISSTRIM_M10");
550	if (ret)
551		pr_err("Failed to setup pins (%d)\n", ret);
552
553	ret = gpio_request_array(visstrim_m10_gpios,
554				ARRAY_SIZE(visstrim_m10_gpios));
555	if (ret)
556		pr_err("Failed to request gpios (%d)\n", ret);
557
558	imx27_add_imx_ssi(0, &visstrim_m10_ssi_pdata);
559	imx27_add_imx_uart0(&uart_pdata);
560
561	imx27_add_imx_i2c(0, &visstrim_m10_i2c_data);
562	imx27_add_imx_i2c(1, &visstrim_m10_i2c_data);
563	i2c_register_board_info(0, visstrim_m10_i2c_devices,
564				ARRAY_SIZE(visstrim_m10_i2c_devices));
565
566	imx27_add_mxc_mmc(0, &visstrim_m10_sdhc_pdata);
567	imx27_add_mxc_ehci_otg(&visstrim_m10_usbotg_pdata);
568	imx27_add_fec(NULL);
569	imx_add_gpio_keys(&visstrim_gpio_keys_platform_data);
570	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
571	imx_add_platform_device("mx27vis", 0, NULL, 0, &snd_mx27vis_pdata,
572				sizeof(snd_mx27vis_pdata));
573	platform_device_register_resndata(NULL, "soc-camera-pdrv", 0, NULL, 0,
574				      &iclink_tvp5150, sizeof(iclink_tvp5150));
575	gpio_led_register_device(0, &visstrim_m10_led_data);
576
577	/* Use mother board version to decide what video devices we shall use */
578	mo_version = (system_rev >> MOTHERBOARD_SHIFT) & VERSION_MASK;
579	if (mo_version & 0x1) {
580		visstrim_emmaprp_init();
581
582		/*
583		 * Despite not being used, tvp5150 must be
584		 * powered on to avoid I2C problems. To minimize
585		 * power consupmtion keep reset enabled.
586		 */
587		gpio_set_value(TVP5150_PWDN, 1);
588		ndelay(1);
589		gpio_set_value(TVP5150_RSTN, 0);
590	} else {
591		visstrim_deinterlace_init();
592		visstrim_analog_camera_init();
593	}
594	visstrim_coda_init();
595}
596
597static void __init visstrim_m10_timer_init(void)
598{
599	mx27_clocks_init((unsigned long)25000000);
600}
601
602MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10")
603	.atag_offset = 0x100,
604	.reserve = visstrim_reserve,
605	.map_io = mx27_map_io,
606	.init_early = imx27_init_early,
607	.init_irq = mx27_init_irq,
608	.init_time	= visstrim_m10_timer_init,
609	.init_machine = visstrim_m10_board_init,
610	.restart	= mxc_restart,
611MACHINE_END
612