imx233 not starting when Vbat >4.0V

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imx233 not starting when Vbat >4.0V

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Contributor I

Hello! I'm working with imx233 with 2.6.31 kernel. The board refuses to start a kernel when I plug a fully charged Li-ion battery (4.2V). When I plug a 3.9 battery, kernel loads OK.

PowerPrep start initialize power...

Fix power pin.

Battery Voltage = 4.15V

boot from battery. 5v input not detected

Jul 24 201311:09:29

EMI_CTRL 0x1C084040

FRAC 0x92926192

init_ddr_mt46v32m16_133Mhz

power 0x00820710

Frac 0x92926192

start change cpu freq

hbus 0x00000003

cpu 0x00010001

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4 Replies

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NXP Employee
NXP Employee

I would suggest you to try U-boot 2013.07 and a kernel 3.10.

Regards,

Fabio Estevam

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Contributor I

Hello! The kernel 3.10 has no sound support. I need to rum kernel 2.6.31 and bootlets. How to correct the power prep bootlet to boot from >4,0V battery?

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Senior Contributor IV

Ivan

This discussion is closed since no activity. If you still need help, please feel free to reply with an update to this discussion, or create another discussion.
Thanks,
Yixing

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Senior Contributor IV

Ivan

Had your issue got resolved? If yes, we are going to close the discussion in 3 days. If you still need help, please feel free to reply with an update to this discussion.

Thanks,
Yixing

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