diff options
author | Javier Martin <javier.martin@vista-silicon.com> | 2012-02-28 17:31:51 +0100 |
---|---|---|
committer | Sascha Hauer <s.hauer@pengutronix.de> | 2012-03-02 08:25:26 +0100 |
commit | f52f5a5503b5ad20902f0aede3f09e660d7fcfc3 (patch) | |
tree | 301c77ba40f39636915a0696a3198cf052d2236d /arch/arm/mach-imx | |
parent | baa1dee18a0f15477f8b109227c0c8e7a92b7048 (diff) | |
download | op-kernel-dev-f52f5a5503b5ad20902f0aede3f09e660d7fcfc3.zip op-kernel-dev-f52f5a5503b5ad20902f0aede3f09e660d7fcfc3.tar.gz |
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: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-imx')
-rw-r--r-- | arch/arm/mach-imx/Kconfig | 1 | ||||
-rw-r--r-- | arch/arm/mach-imx/mach-imx27_visstrim_m10.c | 100 |
2 files changed, 101 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index 3d82133..8102e7f 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -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 diff --git a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c index 479d9e8..7208a9e 100644 --- a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c +++ b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c @@ -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, |