imx6q IPU2 CSI1 timeout

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imx6q IPU2 CSI1 timeout

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r_beal
Contributor I

Dear all,

We tried to use IPU2 CSI1 with an ADV7182 on imx6q variscite dart.

We compiled yocto krogoth.

Modules activated :

CONFIG_MXC_TVIN_ADV7180
CONFIG_VIDEO_MXC_CAPTURE

dtb : 

In iomux section

pinctrl_ipu2: ipu2grp { /* parallel port 16-bit */
fsl,pins = <

MX6QDL_PAD_EIM_A17__IPU2_CSI1_DATA12 0xb0b1
MX6QDL_PAD_EIM_A18__IPU2_CSI1_DATA13 0xb0b1
MX6QDL_PAD_EIM_A19__IPU2_CSI1_DATA14 0xb0b1
MX6QDL_PAD_EIM_A20__IPU2_CSI1_DATA15 0xb0b1
MX6QDL_PAD_EIM_A21__IPU2_CSI1_DATA16 0xb0b1
MX6QDL_PAD_EIM_A22__IPU2_CSI1_DATA17 0xb0b1
MX6QDL_PAD_EIM_A23__IPU2_CSI1_DATA18 0xb0b1
MX6QDL_PAD_EIM_A24__IPU2_CSI1_DATA19 0xb0b1
MX6QDL_PAD_EIM_A16__IPU2_CSI1_PIXCLK 0xb0b1
MX6QDL_PAD_EIM_DA10__IPU2_CSI1_DATA_EN 0xb0b1 /* remove this line has no effect */
MX6QDL_PAD_EIM_DA11__IPU2_CSI1_HSYNC 0xb0b1
MX6QDL_PAD_EIM_DA12__IPU2_CSI1_VSYNC 0xb0b1
>;
};

In i2c section
adv7180: adv7180@20 {
compatible = "adv,adv7180";
reg = <0x20>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ipu2>;
clocks = <&clks 201>;
clock-names = "csi_mclk";
DOVDD-supply = <&reg_3p3v>; /* 3.3v, enabled via 2.8 VGEN6 */
AVDD-supply = <&reg_3p3v>; /* 1.8v */
DVDD-supply = <&reg_3p3v>; /* 1.8v */
PVDD-supply = <&reg_3p3v>; /* 1.8v */
pwn-gpios = <&gpio4 21 0>;
ipu_id = <1>;
csi_id = <1>;
mclk = <24000000>;
mclk_source = <0>;
cvbs = <1>;
};

in / section

v4l2_cap_0 {
compatible = "fsl,imx6q-v4l2-capture";
ipu_id = <1>;
csi_id = <1>;
mclk_source = <0>;
status = "okay";
};

There are  no io conflicts.

The IPU2_CSI1_DATA_EN is pulled down at startup and connected to another cpu's io.

Change io level has no effect.

cat /dev/video0
prp_still_start: ipu_channel_request still 1 1
ERROR: v4l2 capture: mxc_v4l_read timeout counter 0
cat: read error: Timer expired
root@var-som-mx6:~# dmesg
adv7180 0-0020: adv7180:ioctl_g_ifparm
adv7180 0-0020: adv7180:ioctl_g_fmt_cap
Returning size of 720x625
imx-ipuv3 2800000.ipu: CSI_SENS_CONF = 0x80000A02
imx-ipuv3 2800000.ipu: CSI_ACT_FRM_SIZE = 0x027002CF
adv7180 0-0020: adv7180:ioctl_s_power
adv7180 0-0020: In adv7180:ioctl_init
adv7180 0-0020: adv7180:ioctl_dev_init
prp_still_start: ipu_channel_request still 1 1
imx-ipuv3 2800000.ipu: init channel = 15
imx-ipuv3 2800000.ipu: ipu busfreq high requst.
imx-ipuv3 2800000.ipu: initializing idma ch 0 @ c0980000
imx-ipuv3 2800000.ipu: ch 0 word 0 - 00000000 0C600000 0003DE00 E0000000 00057C23
imx-ipuv3 2800000.ipu: ch 0 word 1 - 07840000 00F09000 0047C000 000047C0 0000008F
imx-ipuv3 2800000.ipu: PFS 0x2,
imx-ipuv3 2800000.ipu: BPP 0x0,
imx-ipuv3 2800000.ipu: NPB 0x1f
imx-ipuv3 2800000.ipu: FW 287,
imx-ipuv3 2800000.ipu: FH 351,
imx-ipuv3 2800000.ipu: EBA0 0x3c200000
imx-ipuv3 2800000.ipu: EBA1 0x3c240000
imx-ipuv3 2800000.ipu: Stride 287
imx-ipuv3 2800000.ipu: scan_order 0
imx-ipuv3 2800000.ipu: uv_stride 143
imx-ipuv3 2800000.ipu: u_offset 0x18c00
imx-ipuv3 2800000.ipu: v_offset 0x1ef00
imx-ipuv3 2800000.ipu: Width0 0+1,
imx-ipuv3 2800000.ipu: Width1 0+1,
imx-ipuv3 2800000.ipu: Width2 0+1,
imx-ipuv3 2800000.ipu: Width3 0+1,
imx-ipuv3 2800000.ipu: Offset0 15,
imx-ipuv3 2800000.ipu: Offset1 4,
imx-ipuv3 2800000.ipu: Offset2 0,
imx-ipuv3 2800000.ipu: Offset3 0
ERROR: v4l2 capture: mxc_v4l_read timeout counter 0
imx-ipuv3 2800000.ipu: CSI stop timeout - 5 * 10ms
imx-ipuv3 2800000.ipu: ipu busfreq high release.
adv7180 0-0020: adv7180:ioctl_s_power

 

cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
16: 5504 2740 1398 295 GIC 29 Edge twd
17: 97575 0 0 0 GPC 55 Level i.MX Timer Tick
24: 3515 0 0 0 GPC 26 Level 2020000.serial
25: 0 0 0 0 GPC 47 Level 202c000.ssi
26: 0 0 0 0 GPC 50 Level 2034000.asrc
27: 0 0 0 0 GPC 3 Edge VPU_JPG_IRQ
28: 0 0 0 0 GPC 12 Level VPU_CODEC_IRQ
39: 0 0 0 0 gpio-mxc 6 Edge 2194000.usdhc cd
160: 0 0 0 0 gpio-mxc 25 Edge Menu
161: 0 0 0 0 gpio-mxc 26 Edge Back
180: 0 0 0 0 gpio-mxc 11 Edge Home
269: 0 0 0 0 GPC 80 Level 20bc000.wdog
272: 0 0 0 0 GPC 49 Level imx_thermal
277: 0 0 0 0 GPC 19 Level rtc alarm
278: 0 0 0 0 GPC 4 Level 20cc000.snvs:snvs-powerkey
285: 0 0 0 0 GPC 2 Level sdma
286: 144 0 0 0 GPC 43 Level 2184000.usb
287: 1731 0 0 0 GPC 40 Level 2184200.usb
288: 64 0 0 0 GPC 118 Level 2188000.ethernet
289: 0 0 0 0 GPC 119 Level 2188000.ethernet
290: 147 0 0 0 GPC 22 Level mmc0
291: 0 0 0 0 GPC 23 Level mmc1
292: 1437 0 0 0 GPC 24 Level mmc2
293: 766 0 0 0 GPC 36 Level 21a0000.i2c
294: 176 0 0 0 GPC 37 Level 21a4000.i2c
295: 2 0 0 0 GPC 38 Level 21a8000.i2c
299: 0 0 0 0 GPC 18 Level vdoa
300: 0 0 0 0 GPC 27 Level 21e8000.serial
301: 0 0 0 0 GPC 28 Level 21ec000.serial
302: 4 0 0 0 GPC 6 Level 2400000.ipu
303: 0 0 0 0 GPC 5 Level 2400000.ipu
304: 0 0 0 0 GPC 107 Level mmdc_1
305: 0 0 0 0 GPC 112 Level mmdc_1
306: 0 0 0 0 GPC 113 Level mmdc_1
307: 0 0 0 0 GPC 114 Level mmdc_1
311: 0 0 0 0 GPC 8 Level 2800000.ipu
312: 0 0 0 0 GPC 7 Level 2800000.ipu
313: 2 0 0 0 GIC 137 Level 2101000.jr0
314: 0 0 0 0 GIC 138 Level 2102000.jr1
IPI0: 0 0 0 0 CPU wakeup interrupts
IPI1: 0 43648 4490 188 Timer broadcast interrupts
IPI2: 8650 14077 13812 16788 Rescheduling interrupts
IPI3: 20 24 26 17 Function call interrupts
IPI4: 4 10 1 0 Single function call interrupts
IPI5: 0 0 0 0 CPU stop interrupts
IPI6: 1 0 0 0 IRQ work interrupts
IPI7: 0 0 0 0 completion interrupts
Err: 0

 

We tried to apply Omar's patchs from this link : IPU2 parallel port on IMX6Q 

All ios are muxed correctly. Checked with IMX6QDRM datasheet.

With an oscilloscope there are PIXCLK V/HSYNC and DATA when cat /dev/video0 is clalled.

Thanks for your help

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214 Views
r_beal
Contributor I

It works.

It was an electric problem.

Solved !

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214 Views
r_beal
Contributor I

I patched the adv7180_tvin driver to works with adv7183.

Now i have an image but it is very dark. I think it is a problem with AGC.

I work on it

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