Why sabresd (IMX6Q) android nougat is hanging in uboot while camera modules are mounted ?

[bhargavmehta]

Hi,

i'm using imx6q sabresd board...

i have builded android nougat as suggested in NXP document...

after flashing images to emmc from MFGTool what i'm observing that while mounting camera modules it's hanging in uboot...

below error i'm getting...

U-Boot 2015.04 (May 18 2017 - 14:39:44)

CPU: Freescale i.MX6Q rev1.2 at 792 MHz
CPU: Temperature 30 C
Reset cause: POR
Board: MX6-SabreSD
I2C: ready
DRAM: 1 GiB
wait_for_sr_state: failed sr=0 cr=98 state=202
i2c_init_transfer: failed for chip 0x8 retry=0
wait_for_sr_state: failed sr=0 cr=98 state=202
i2c_init_transfer: failed for chip 0x8 retry=1
wait_for_sr_state: failed sr=0 cr=98 state=202
i2c_init_transfer: failed for chip 0x8 retry=2
i2c_init_transfer: give up i2c_regs=021a4000
Can't find PMIC:PFUZE100
initcall sequence 4ff91e24 failed at call 178039c0 (err=-19)
### ERROR ### Please RESET the board ###

can anybody help me out ???

[igorpadykov]

Hi Bhargav

from log "Can't find PMIC:PFUZE100", seems there are problems

with i2c pmic, so one can check i2c signals with oscilloscope

and debug it with jtag debugger.

Best regards
igor
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