2 * mach-imx27_visstrim_m10.c
4 * Copyright 2010 Javier Martin <javier.martin@vista-silicon.com>
6 * Based on mach-pcm038.c, mach-pca100.c, mach-mx27ads.c and others.
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.
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.
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,
24 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
26 #include <linux/platform_device.h>
27 #include <linux/mtd/physmap.h>
28 #include <linux/i2c.h>
29 #include <linux/i2c/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/memblock.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.h>
42 #include <mach/common.h>
43 #include <mach/iomux-mx27.h>
45 #include "devices-imx27.h"
47 #define TVP5150_RSTN (GPIO_PORTC + 18)
48 #define TVP5150_PWDN (GPIO_PORTC + 19)
49 #define OTG_PHY_CS_GPIO (GPIO_PORTF + 17)
50 #define SDHC1_IRQ IRQ_GPIOB(25)
52 #define MOTHERBOARD_BIT2 (GPIO_PORTD + 31)
53 #define MOTHERBOARD_BIT1 (GPIO_PORTD + 30)
54 #define MOTHERBOARD_BIT0 (GPIO_PORTD + 29)
56 #define EXPBOARD_BIT2 (GPIO_PORTD + 25)
57 #define EXPBOARD_BIT1 (GPIO_PORTD + 27)
58 #define EXPBOARD_BIT0 (GPIO_PORTD + 28)
60 static const int visstrim_m10_pins[] __initconst = {
103 OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
105 PC11_PF_USBOTG_DATA1,
106 PC10_PF_USBOTG_DATA2,
107 PC13_PF_USBOTG_DATA3,
108 PC12_PF_USBOTG_DATA4,
111 PE25_PF_USBOTG_DATA7,
119 TVP5150_RSTN | GPIO_GPIO | GPIO_OUT,
120 TVP5150_PWDN | GPIO_GPIO | GPIO_OUT,
133 /* mother board version */
134 MOTHERBOARD_BIT2 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
135 MOTHERBOARD_BIT1 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
136 MOTHERBOARD_BIT0 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
137 /* expansion board version */
138 EXPBOARD_BIT2 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
139 EXPBOARD_BIT1 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
140 EXPBOARD_BIT0 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
143 static struct gpio visstrim_m10_version_gpios[] = {
144 { EXPBOARD_BIT0, GPIOF_IN, "exp-version-0" },
145 { EXPBOARD_BIT1, GPIOF_IN, "exp-version-1" },
146 { EXPBOARD_BIT2, GPIOF_IN, "exp-version-2" },
147 { MOTHERBOARD_BIT0, GPIOF_IN, "mother-version-0" },
148 { MOTHERBOARD_BIT1, GPIOF_IN, "mother-version-1" },
149 { MOTHERBOARD_BIT2, GPIOF_IN, "mother-version-2" },
152 static const struct gpio visstrim_m10_gpios[] __initconst = {
154 .gpio = TVP5150_RSTN,
155 .flags = GPIOF_DIR_OUT | GPIOF_INIT_HIGH,
156 .label = "tvp5150_rstn",
159 .gpio = TVP5150_PWDN,
160 .flags = GPIOF_DIR_OUT | GPIOF_INIT_LOW,
161 .label = "tvp5150_pwdn",
164 .gpio = OTG_PHY_CS_GPIO,
165 .flags = GPIOF_DIR_OUT | GPIOF_INIT_LOW,
166 .label = "usbotg_cs",
171 static int visstrim_camera_power(struct device *dev, int on)
173 gpio_set_value(TVP5150_PWDN, on);
178 static int visstrim_camera_reset(struct device *dev)
180 gpio_set_value(TVP5150_RSTN, 0);
182 gpio_set_value(TVP5150_RSTN, 1);
187 static struct i2c_board_info visstrim_i2c_camera = {
188 I2C_BOARD_INFO("tvp5150", 0x5d),
191 static struct soc_camera_link iclink_tvp5150 = {
193 .board_info = &visstrim_i2c_camera,
195 .power = visstrim_camera_power,
196 .reset = visstrim_camera_reset,
199 static struct mx2_camera_platform_data visstrim_camera = {
200 .flags = MX2_CAMERA_CCIR | MX2_CAMERA_CCIR_INTERLACE |
201 MX2_CAMERA_PCLK_SAMPLE_RISING,
205 static phys_addr_t mx2_camera_base __initdata;
206 #define MX2_CAMERA_BUF_SIZE SZ_8M
208 static void __init visstrim_camera_init(void)
210 struct platform_device *pdev;
213 gpio_set_value(TVP5150_PWDN, 1);
215 gpio_set_value(TVP5150_RSTN, 0);
217 gpio_set_value(TVP5150_RSTN, 1);
220 pdev = imx27_add_mx2_camera(&visstrim_camera);
224 dma = dma_declare_coherent_memory(&pdev->dev,
225 mx2_camera_base, mx2_camera_base,
227 DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
228 if (!(dma & DMA_MEMORY_MAP))
232 static void __init visstrim_reserve(void)
234 /* reserve 4 MiB for mx2-camera */
235 mx2_camera_base = memblock_alloc(MX2_CAMERA_BUF_SIZE,
236 MX2_CAMERA_BUF_SIZE);
237 memblock_free(mx2_camera_base, MX2_CAMERA_BUF_SIZE);
238 memblock_remove(mx2_camera_base, MX2_CAMERA_BUF_SIZE);
241 /* GPIOs used as events for applications */
242 static struct gpio_keys_button visstrim_gpio_keys[] = {
246 .gpio = (GPIO_PORTC + 15),
247 .desc = "Default config",
254 .gpio = (GPIO_PORTF + 14),
262 .gpio = (GPIO_PORTF + 13),
269 static const struct gpio_keys_platform_data
270 visstrim_gpio_keys_platform_data __initconst = {
271 .buttons = visstrim_gpio_keys,
272 .nbuttons = ARRAY_SIZE(visstrim_gpio_keys),
276 static const struct gpio_led visstrim_m10_leds[] __initconst = {
278 .name = "visstrim:ld0",
279 .default_trigger = "nand-disk",
280 .gpio = (GPIO_PORTC + 29),
283 .name = "visstrim:ld1",
284 .default_trigger = "nand-disk",
285 .gpio = (GPIO_PORTC + 24),
288 .name = "visstrim:ld2",
289 .default_trigger = "nand-disk",
290 .gpio = (GPIO_PORTC + 28),
293 .name = "visstrim:ld3",
294 .default_trigger = "nand-disk",
295 .gpio = (GPIO_PORTC + 25),
299 static const struct gpio_led_platform_data visstrim_m10_led_data __initconst = {
300 .leds = visstrim_m10_leds,
301 .num_leds = ARRAY_SIZE(visstrim_m10_leds),
304 /* Visstrim_SM10 has a microSD slot connected to sdhc1 */
305 static int visstrim_m10_sdhc1_init(struct device *dev,
306 irq_handler_t detect_irq, void *data)
310 ret = request_irq(SDHC1_IRQ, detect_irq, IRQF_TRIGGER_FALLING,
315 static void visstrim_m10_sdhc1_exit(struct device *dev, void *data)
317 free_irq(SDHC1_IRQ, data);
320 static const struct imxmmc_platform_data visstrim_m10_sdhc_pdata __initconst = {
321 .init = visstrim_m10_sdhc1_init,
322 .exit = visstrim_m10_sdhc1_exit,
325 /* Visstrim_SM10 NOR flash */
326 static struct physmap_flash_data visstrim_m10_flash_data = {
330 static struct resource visstrim_m10_flash_resource = {
332 .end = 0xc0000000 + SZ_64M - 1,
333 .flags = IORESOURCE_MEM,
336 static struct platform_device visstrim_m10_nor_mtd_device = {
337 .name = "physmap-flash",
340 .platform_data = &visstrim_m10_flash_data,
343 .resource = &visstrim_m10_flash_resource,
346 static struct platform_device *platform_devices[] __initdata = {
347 &visstrim_m10_nor_mtd_device,
350 /* Visstrim_M10 uses UART0 as console */
351 static const struct imxuart_platform_data uart_pdata __initconst = {
352 .flags = IMXUART_HAVE_RTSCTS,
356 static const struct imxi2c_platform_data visstrim_m10_i2c_data __initconst = {
360 static struct pca953x_platform_data visstrim_m10_pca9555_pdata = {
361 .gpio_base = 240, /* After MX27 internal GPIOs */
365 static struct aic32x4_pdata visstrim_m10_aic32x4_pdata = {
366 .power_cfg = AIC32X4_PWR_MICBIAS_2075_LDOIN |
367 AIC32X4_PWR_AVDD_DVDD_WEAK_DISABLE |
368 AIC32X4_PWR_AIC32X4_LDO_ENABLE |
369 AIC32X4_PWR_CMMODE_LDOIN_RANGE_18_36 |
370 AIC32X4_PWR_CMMODE_HP_LDOIN_POWERED,
371 .micpga_routing = AIC32X4_MICPGA_ROUTE_LMIC_IN2R_10K |
372 AIC32X4_MICPGA_ROUTE_RMIC_IN1L_10K,
376 static struct i2c_board_info visstrim_m10_i2c_devices[] = {
378 I2C_BOARD_INFO("pca9555", 0x20),
379 .platform_data = &visstrim_m10_pca9555_pdata,
382 I2C_BOARD_INFO("tlv320aic32x4", 0x18),
383 .platform_data = &visstrim_m10_aic32x4_pdata,
386 I2C_BOARD_INFO("m41t00", 0x68),
391 static int otg_phy_init(struct platform_device *pdev)
393 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
396 static const struct mxc_usbh_platform_data
397 visstrim_m10_usbotg_pdata __initconst = {
398 .init = otg_phy_init,
399 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
403 static const struct imx_ssi_platform_data visstrim_m10_ssi_pdata __initconst = {
404 .flags = IMX_SSI_DMA | IMX_SSI_SYN,
407 static void __init visstrim_m10_revision(void)
413 ret = gpio_request_array(visstrim_m10_version_gpios,
414 ARRAY_SIZE(visstrim_m10_version_gpios));
416 pr_err("Failed to request version gpios");
420 /* Get expansion board version (negative logic) */
421 exp_version |= !gpio_get_value(EXPBOARD_BIT2) << 2;
422 exp_version |= !gpio_get_value(EXPBOARD_BIT1) << 1;
423 exp_version |= !gpio_get_value(EXPBOARD_BIT0);
425 /* Get mother board version (negative logic) */
426 mo_version |= !gpio_get_value(MOTHERBOARD_BIT2) << 2;
427 mo_version |= !gpio_get_value(MOTHERBOARD_BIT1) << 1;
428 mo_version |= !gpio_get_value(MOTHERBOARD_BIT0);
430 system_rev = 0x27000;
431 system_rev |= (mo_version << 4);
432 system_rev |= exp_version;
435 static void __init visstrim_m10_board_init(void)
440 visstrim_m10_revision();
442 ret = mxc_gpio_setup_multiple_pins(visstrim_m10_pins,
443 ARRAY_SIZE(visstrim_m10_pins), "VISSTRIM_M10");
445 pr_err("Failed to setup pins (%d)\n", ret);
447 ret = gpio_request_array(visstrim_m10_gpios,
448 ARRAY_SIZE(visstrim_m10_gpios));
450 pr_err("Failed to request gpios (%d)\n", ret);
452 imx27_add_imx_ssi(0, &visstrim_m10_ssi_pdata);
453 imx27_add_imx_uart0(&uart_pdata);
455 imx27_add_imx_i2c(0, &visstrim_m10_i2c_data);
456 imx27_add_imx_i2c(1, &visstrim_m10_i2c_data);
457 i2c_register_board_info(0, visstrim_m10_i2c_devices,
458 ARRAY_SIZE(visstrim_m10_i2c_devices));
460 imx27_add_mxc_mmc(0, &visstrim_m10_sdhc_pdata);
461 imx27_add_mxc_ehci_otg(&visstrim_m10_usbotg_pdata);
463 imx_add_gpio_keys(&visstrim_gpio_keys_platform_data);
464 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
465 imx_add_platform_device("mx27vis", 0, NULL, 0, NULL, 0);
466 platform_device_register_resndata(NULL, "soc-camera-pdrv", 0, NULL, 0,
467 &iclink_tvp5150, sizeof(iclink_tvp5150));
468 gpio_led_register_device(0, &visstrim_m10_led_data);
469 visstrim_camera_init();
472 static void __init visstrim_m10_timer_init(void)
474 mx27_clocks_init((unsigned long)25000000);
477 static struct sys_timer visstrim_m10_timer = {
478 .init = visstrim_m10_timer_init,
481 MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10")
482 .atag_offset = 0x100,
483 .reserve = visstrim_reserve,
484 .map_io = mx27_map_io,
485 .init_early = imx27_init_early,
486 .init_irq = mx27_init_irq,
487 .handle_irq = imx27_handle_irq,
488 .timer = &visstrim_m10_timer,
489 .init_machine = visstrim_m10_board_init,
490 .restart = mxc_restart,