topic Re: How to debug imx6 ipu. in i.MX Processors

How to debug imx6 ipu.

guanliangding — Thu, 29 Oct 2015 11:57:50 GMT

Hi, all:

Now we status is that. adv7282m->imx6d, MIPI input is 576i, vc = 1。

MIPI-CSI2 reg dump：

0x3130302a

0x0

0x1

0x300

0x0

0x2626

CSI2IPU reg dump：

0x4

IPU_CM reg dump：

imx-ipuv3 2400000.ipu: IPU_CONF =	0xA0000006
imx-ipuv3 2400000.ipu: IPU_INT_CTRL_1 =	0x80100000
imx-ipuv3 2400000.ipu: IPU_INT_STAT_1 =	0x00000000

IPU_CSI reg dump：

imx-ipuv3 2400000.ipu: CSI1_SENS_CONF =	0x02000A02
imx-ipuv3 2400000.ipu: CSI1_SENS_FRM_SIZE =	0x027002CF
imx-ipuv3 2400000.ipu: CSI1_ACT_FRM_SIZE =	0x027002CF
imx-ipuv3 2400000.ipu: CSI1_MIPI_DI =	0xFFFFFF5E

IPU_IC reg dump：

imx-ipuv3 2400000.ipu: 0x00000001

imx-ipuv3 2400000.ipu: 0x22BA2000

imx-ipuv3 2400000.ipu: 0x20002000

imx-ipuv3 2400000.ipu: 0x00000000

imx-ipuv3 2400000.ipu: 0x00000001

imx-ipuv3 2400000.ipu: 0x0000023F

imx-ipuv3 2400000.ipu: 0x000002CF

imx-ipuv3 2400000.ipu: 0x00000000

But, it is doesn't work anyway.

Re: How to debug imx6 ipu.

igorpadykov — Mon, 02 Nov 2015 01:55:17 GMT

Hi guanliang

IPU debug steps are described on p.115 presentation

https://community.freescale.com/docs/DOC-100482

As for adv7280:

1. the adv7280 should be enabled after mipi_csi2_reset().

2. For MIPI CSI input, the clock mode in IPU_CSI_SENS_CONF must be gated clock mode.

p->u.bt656.clock_curr = 1;

3. For interlaced input, IDMAC 0 should be set to interlaced mode:

"params.csi_mem.interlaced = true;" For progressive input, IDMAC 0 shoudl be

set to progressive mode: "params.csi_mem.interlaced = false;"

case IPU_CSI_CLK_MODE_GATED_CLK:

in file drivers\media\video\mxc\capture\ipu_csi_enc.c, function csi_enc_setup().

4. For device type:

adv7280_data.sen.pix.priv = 1; /* 1 is used to indicate TV in */

Best regards

igor

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Re: How to debug imx6 ipu.

guanliangding — Mon, 02 Nov 2015 08:46:43 GMT

Hi igor:

Thanks!

I dump the debug information, but not found any information about drivers\media\video\mxc\capture\ipu_csi_enc.c. Is it means?

Re: How to debug imx6 ipu.

guanliangding — Mon, 02 Nov 2015 11:17:32 GMT

Hi igor:

I also have problem, why the adi official adv7282m driver is doesn't work in freescale platform. Adi official declare that it is a standard interface driver.

Re: How to debug imx6 ipu.

igorpadykov — Mon, 02 Nov 2015 11:51:51 GMT

seems this is high level driver, while it should be also supported by

low level (means from processor side - i.MX6 IPU/MIPI).