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Commit f52f5a55 authored by Javier Martin's avatar Javier Martin Committed by Sascha Hauer
Browse files

i.MX27: visstrim_m10: Add video support. 



Vista Silicon Visstrim_m10 board has a tvp5150
video decoder attached to the CSI interface

Signed-off-by: default avatarJavier Martin <javier.martin@vista-silicon.com>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent baa1dee1

arch/arm/mach-imx/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -320,6 +320,7 @@ config MACH_IMX27_VISSTRIM_M10 
	select IMX_HAVE_PLATFORM_IMX_I2C

	select IMX_HAVE_PLATFORM_IMX_SSI

	select IMX_HAVE_PLATFORM_IMX_UART

	select IMX_HAVE_PLATFORM_MX2_CAMERA

	select IMX_HAVE_PLATFORM_MXC_EHCI

	select IMX_HAVE_PLATFORM_MXC_MMC

	help

arch/arm/mach-imx/mach-imx27_visstrim_m10.c

+100 −0
Original line number Diff line number Diff line
@@ -30,6 +30,9 @@ 
#include <linux/input.h>

#include <linux/gpio.h>

#include <linux/delay.h>

#include <linux/dma-mapping.h>

#include <linux/memblock.h>

#include <media/soc_camera.h>

#include <sound/tlv320aic32x4.h>

#include <asm/mach-types.h>

#include <asm/mach/arch.h>
@@ -39,6 +42,8 @@ 


#include "devices-imx27.h"



#define TVP5150_RSTN (GPIO_PORTC + 18)

#define TVP5150_PWDN (GPIO_PORTC + 19)

#define OTG_PHY_CS_GPIO (GPIO_PORTF + 17)

#define SDHC1_IRQ IRQ_GPIOB(25)
@@ -100,8 +105,99 @@ static const int visstrim_m10_pins[] __initconst = { 
	PE1_PF_USBOTG_STP,

	PB23_PF_USB_PWR,

	PB24_PF_USB_OC,

	/* CSI */

	PB10_PF_CSI_D0,

	PB11_PF_CSI_D1,

	PB12_PF_CSI_D2,

	PB13_PF_CSI_D3,

	PB14_PF_CSI_D4,

	PB15_PF_CSI_MCLK,

	PB16_PF_CSI_PIXCLK,

	PB17_PF_CSI_D5,

	PB18_PF_CSI_D6,

	PB19_PF_CSI_D7,

	PB20_PF_CSI_VSYNC,

	PB21_PF_CSI_HSYNC,

};



/* Camera */

static int visstrim_camera_power(struct device *dev, int on)

{

	gpio_set_value(TVP5150_PWDN, on);



	return 0;

};



static int visstrim_camera_reset(struct device *dev)

{

	gpio_set_value(TVP5150_RSTN, 0);

	ndelay(500);

	gpio_set_value(TVP5150_RSTN, 1);



	return 0;

};



static struct i2c_board_info visstrim_i2c_camera =  {

	I2C_BOARD_INFO("tvp5150", 0x5d),

};



static struct soc_camera_link iclink_tvp5150 = {

	.bus_id         = 0,

	.board_info     = &visstrim_i2c_camera,

	.i2c_adapter_id = 0,

	.power = visstrim_camera_power,

	.reset = visstrim_camera_reset,

};



static struct mx2_camera_platform_data visstrim_camera = {

	.flags = MX2_CAMERA_CCIR | MX2_CAMERA_CCIR_INTERLACE |

			MX2_CAMERA_SWAP16 | MX2_CAMERA_PCLK_SAMPLE_RISING,

	.clk = 100000,

};



static phys_addr_t mx2_camera_base __initdata;

#define MX2_CAMERA_BUF_SIZE SZ_8M



static void __init visstrim_camera_init(void)

{

	struct platform_device *pdev;

	int dma;



	/* Initialize tvp5150 gpios */

	mxc_gpio_mode(TVP5150_RSTN | GPIO_GPIO | GPIO_OUT);

	mxc_gpio_mode(TVP5150_PWDN | GPIO_GPIO | GPIO_OUT);

	gpio_set_value(TVP5150_RSTN, 1);

	gpio_set_value(TVP5150_PWDN, 0);

	ndelay(1);



	gpio_set_value(TVP5150_PWDN, 1);

	ndelay(1);

	gpio_set_value(TVP5150_RSTN, 0);

	ndelay(500);

	gpio_set_value(TVP5150_RSTN, 1);

	ndelay(200000);



	pdev = imx27_add_mx2_camera(&visstrim_camera);

	if (IS_ERR(pdev))

		return;



	dma = dma_declare_coherent_memory(&pdev->dev,

				mx2_camera_base, mx2_camera_base,

				MX2_CAMERA_BUF_SIZE,

				DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);

	if (!(dma & DMA_MEMORY_MAP))

		return;

}



static void __init visstrim_reserve(void)

{

	/* reserve 4 MiB for mx2-camera */

	mx2_camera_base = memblock_alloc(MX2_CAMERA_BUF_SIZE,

			MX2_CAMERA_BUF_SIZE);

	memblock_free(mx2_camera_base, MX2_CAMERA_BUF_SIZE);

	memblock_remove(mx2_camera_base, MX2_CAMERA_BUF_SIZE);

}



/* GPIOs used as events for applications */

static struct gpio_keys_button visstrim_gpio_keys[] = {

	{
@@ -267,6 +363,9 @@ static void __init visstrim_m10_board_init(void) 
	imx27_add_fec(NULL);

	imx_add_gpio_keys(&visstrim_gpio_keys_platform_data);

	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));

	platform_device_register_resndata(NULL, "soc-camera-pdrv", 0, NULL, 0,

				      &iclink_tvp5150, sizeof(iclink_tvp5150));

	visstrim_camera_init();

}



static void __init visstrim_m10_timer_init(void)
@@ -280,6 +379,7 @@ static struct sys_timer visstrim_m10_timer = { 


MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10")

	.atag_offset = 0x100,

	.reserve = visstrim_reserve,

	.map_io = mx27_map_io,

	.init_early = imx27_init_early,

	.init_irq = mx27_init_irq,