I.MX35 PDK

On 3/7/12, Alex Gershgorin [off-list ref] wrote:

in spite of this I get from ov2640 driver error
Here Linux Kernel boot message:

"Linux video capture interface: v2.00
soc-camera-pdrv soc-camera-pdrv.0: Probing soc-camera-pdrv.0
mx3-camera mx3-camera.0: MX3 Camera driver attached to camera 0
ov2640 0-0030: Product ID error fb:fb"

I cannot understand what the problem is, if someone tested this?

Looks like a I2C issue.

Check the I2C1 pad settings in the mainline kernel.

On FSL kernel we have:

#define PAD_CONFIG (PAD_CTL_HYS_SCHMITZ | PAD_CTL_PKE_ENABLE |
PAD_CTL_PUE_PUD | PAD_CTL_ODE_OpenDrain)

	switch (i2c_num) {
	case 0:
		mxc_request_iomux(MX35_PIN_I2C1_CLK, MUX_CONFIG_SION);
		mxc_request_iomux(MX35_PIN_I2C1_DAT, MUX_CONFIG_SION);

		mxc_iomux_set_pad(MX35_PIN_I2C1_CLK, PAD_CONFIG);
		mxc_iomux_set_pad(MX35_PIN_I2C1_DAT, PAD_CONFIG);

Also check if you are getting the proper voltage levels at the I2C1 lines.

Good luck!