Skip to content

Commit

Permalink
pcm037: add MT9T031 camera support
Browse files Browse the repository at this point in the history 
Add support for the MT9T031 CMOS camera sensor from Aptina to the PCM037
board. Also add two I2C iomux pin definitions, needed for pcm037. Also
remove now unneeded #ifdef CONFIG_I2C_IMX.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
  • Loading branch information
Guennadi Liakhovetski authored and Sascha Hauer committed Jun 23, 2009
1 parent 0c8bad6 commit 32c1ad9
Show file tree
Hide file tree
Showing 2 changed files with 108 additions and 12 deletions.
118 changes: 106 additions & 12 deletions arch/arm/mach-mx3/pcm037.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@

#include <linux/types.h>
#include <linux/init.h>

#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/plat-ram.h>
Expand All @@ -33,29 +33,32 @@
#include <linux/irq.h>
#include <linux/fsl_devices.h>

#include <mach/hardware.h>
#include <media/soc_camera.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <mach/board-pcm037.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/i2c.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
#include <mach/ipu.h>
#include <mach/board-pcm037.h>
#include <mach/mmc.h>
#include <mach/mx3_camera.h>
#include <mach/mx3fb.h>
#include <mach/mxc_nand.h>
#include <mach/mmc.h>
#ifdef CONFIG_I2C_IMX
#include <mach/i2c.h>
#endif

#include "devices.h"

static unsigned int pcm037_pins[] = {
/* I2C */
MX31_PIN_CSPI2_MOSI__SCL,
MX31_PIN_CSPI2_MISO__SDA,
MX31_PIN_CSPI2_SS2__I2C3_SDA,
MX31_PIN_CSPI2_SCLK__I2C3_SCL,
/* SDHC1 */
MX31_PIN_SD1_DATA3__SD1_DATA3,
MX31_PIN_SD1_DATA2__SD1_DATA2,
Expand Down Expand Up @@ -120,6 +123,22 @@ static unsigned int pcm037_pins[] = {
MX31_PIN_D3_SPL__D3_SPL,
MX31_PIN_D3_CLS__D3_CLS,
MX31_PIN_LCS0__GPI03_23,
/* CSI */
IOMUX_MODE(MX31_PIN_CSI_D5, IOMUX_CONFIG_GPIO),
MX31_PIN_CSI_D6__CSI_D6,
MX31_PIN_CSI_D7__CSI_D7,
MX31_PIN_CSI_D8__CSI_D8,
MX31_PIN_CSI_D9__CSI_D9,
MX31_PIN_CSI_D10__CSI_D10,
MX31_PIN_CSI_D11__CSI_D11,
MX31_PIN_CSI_D12__CSI_D12,
MX31_PIN_CSI_D13__CSI_D13,
MX31_PIN_CSI_D14__CSI_D14,
MX31_PIN_CSI_D15__CSI_D15,
MX31_PIN_CSI_HSYNC__CSI_HSYNC,
MX31_PIN_CSI_MCLK__CSI_MCLK,
MX31_PIN_CSI_PIXCLK__CSI_PIXCLK,
MX31_PIN_CSI_VSYNC__CSI_VSYNC,
};

static struct physmap_flash_data pcm037_flash_data = {
Expand Down Expand Up @@ -250,27 +269,58 @@ static struct mxc_nand_platform_data pcm037_nand_board_info = {
.hw_ecc = 1,
};

#ifdef CONFIG_I2C_IMX
static struct imxi2c_platform_data pcm037_i2c_1_data = {
.bitrate = 100000,
};

static struct imxi2c_platform_data pcm037_i2c_2_data = {
.bitrate = 20000,
};

static struct at24_platform_data board_eeprom = {
.byte_len = 4096,
.page_size = 32,
.flags = AT24_FLAG_ADDR16,
};

static int pcm037_camera_power(struct device *dev, int on)
{
/* disable or enable the camera in X7 or X8 PCM970 connector */
gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_CSI_D5), !on);
return 0;
}

static struct i2c_board_info pcm037_i2c_2_devices[] = {
{
I2C_BOARD_INFO("mt9t031", 0x5d),
},
};

static struct soc_camera_link iclink = {
.bus_id = 0, /* Must match with the camera ID */
.power = pcm037_camera_power,
.board_info = &pcm037_i2c_2_devices[0],
.i2c_adapter_id = 2,
.module_name = "mt9t031",
};

static struct i2c_board_info pcm037_i2c_devices[] = {
{
{
I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
.platform_data = &board_eeprom,
}, {
I2C_BOARD_INFO("rtc-pcf8563", 0x51),
.type = "pcf8563",
}
};
#endif

static struct platform_device pcm037_camera = {
.name = "soc-camera-pdrv",
.id = 0,
.dev = {
.platform_data = &iclink,
},
};

/* Not connected by default */
#ifdef PCM970_SDHC_RW_SWITCH
Expand Down Expand Up @@ -334,9 +384,41 @@ static struct imxmmc_platform_data sdhc_pdata = {
.exit = pcm970_sdhc1_exit,
};

struct mx3_camera_pdata camera_pdata = {
.dma_dev = &mx3_ipu.dev,
.flags = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10,
.mclk_10khz = 2000,
};

static int __init pcm037_camera_alloc_dma(const size_t buf_size)
{
dma_addr_t dma_handle;
void *buf;
int dma;

if (buf_size < 2 * 1024 * 1024)
return -EINVAL;

buf = dma_alloc_coherent(NULL, buf_size, &dma_handle, GFP_KERNEL);
if (!buf) {
pr_err("%s: cannot allocate camera buffer-memory\n", __func__);
return -ENOMEM;
}

memset(buf, 0, buf_size);

dma = dma_declare_coherent_memory(&mx3_camera.dev,
dma_handle, dma_handle, buf_size,
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);

/* The way we call dma_declare_coherent_memory only a malloc can fail */
return dma & DMA_MEMORY_MAP ? 0 : -ENOMEM;
}

static struct platform_device *devices[] __initdata = {
&pcm037_flash,
&pcm037_sram_device,
&pcm037_camera,
};

static struct ipu_platform_data mx3_ipu_data = {
Expand Down Expand Up @@ -415,18 +497,30 @@ static void __init mxc_board_init(void)
}


#ifdef CONFIG_I2C_IMX
/* I2C adapters and devices */
i2c_register_board_info(1, pcm037_i2c_devices,
ARRAY_SIZE(pcm037_i2c_devices));

mxc_register_device(&mxc_i2c_device1, &pcm037_i2c_1_data);
#endif
mxc_register_device(&mxc_i2c_device2, &pcm037_i2c_2_data);

mxc_register_device(&mxc_nand_device, &pcm037_nand_board_info);
mxc_register_device(&mxcsdhc_device0, &sdhc_pdata);
mxc_register_device(&mx3_ipu, &mx3_ipu_data);
mxc_register_device(&mx3_fb, &mx3fb_pdata);
if (!gpio_usbotg_hs_activate())
mxc_register_device(&mxc_otg_udc_device, &usb_pdata);

/* CSI */
/* Camera power: default - off */
ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_CSI_D5), "mt9t031-power");
if (!ret)
gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CSI_D5), 1);
else
iclink.power = NULL;

if (!pcm037_camera_alloc_dma(4 * 1024 * 1024))
mxc_register_device(&mx3_camera, &camera_pdata);
}

static void __init pcm037_timer_init(void)
Expand Down
2 changes: 2 additions & 0 deletions arch/arm/plat-mxc/include/mach/iomux-mx3.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -602,6 +602,8 @@ enum iomux_pins {
#define MX31_PIN_I2C_DAT__SDA IOMUX_MODE(MX31_PIN_I2C_DAT, IOMUX_CONFIG_FUNC)
#define MX31_PIN_DCD_DTE1__I2C2_SDA IOMUX_MODE(MX31_PIN_DCD_DTE1, IOMUX_CONFIG_ALT2)
#define MX31_PIN_RI_DTE1__I2C2_SCL IOMUX_MODE(MX31_PIN_RI_DTE1, IOMUX_CONFIG_ALT2)
#define MX31_PIN_CSPI2_SS2__I2C3_SDA IOMUX_MODE(MX31_PIN_CSPI2_SS2, IOMUX_CONFIG_ALT1)
#define MX31_PIN_CSPI2_SCLK__I2C3_SCL IOMUX_MODE(MX31_PIN_CSPI2_SCLK, IOMUX_CONFIG_ALT1)
#define MX31_PIN_CSI_D4__CSI_D4 IOMUX_MODE(MX31_PIN_CSI_D4, IOMUX_CONFIG_FUNC)
#define MX31_PIN_CSI_D5__CSI_D5 IOMUX_MODE(MX31_PIN_CSI_D5, IOMUX_CONFIG_FUNC)
#define MX31_PIN_CSI_D6__CSI_D6 IOMUX_MODE(MX31_PIN_CSI_D6, IOMUX_CONFIG_FUNC)
Expand Down

0 comments on commit 32c1ad9

Please sign in to comment.