I2C1 not work

BrilliantovKiri — Tue, 15 Jan 2013 07:43:28 GMT

Hello!

I work on custom board based on iMX538, I succesfully get video from CMOS via CSI0, now I solve problem with I2C1.

I2C1 configuration:
IOMUXC_SW_MUX_CTL_PAD_CSI0_DAT8 0x15
IOMUXC_SW_PAD_CTL_PAD_CSI0_DAT8 0x1ec
IOMUXC_I2C1_IPP_SDA_IN_SELECT_INPUT 0x0
IOMUXC_SW_MUX_CTL_PAD_CSI0_DAT9 0x15
IOMUXC_SW_PAD_CTL_PAD_CSI0_DAT9 0x1ec
IOMUXC_I2C1_IPP_SCL_IN_SELECT_INPUT 0x0
According with i.MX53 Multimedia Applications Processor Reference Manual (Rev. 2,.1, 6/2012) I not see any errors in I2C1 configuration, unfortunally it not work and I have very strange situation:
- in U-Boot I not see change signal level, it always hight
- in Linux I see change signal level, but I not see clock

Linux debug output:

i2c i2c-0: ioctl, cmd=0x707, arg=0x7ec3dbfc

i2c i2c-0: master_xfer[0] W, addr=0x5c, len=3

i2c i2c-0: <i2c_imx_xfer>

i2c i2c-0: <i2c_imx_start>

i2c i2c-0: <i2c_imx_bus_busy>

i2c i2c-0: <i2c_imx_xfer> transfer message: 0

i2c i2c-0: <i2c_imx_xfer> CONTROL: IEN=1, IIEN=1, MSTA=1, MTX=1, TXAK=1, RSTA=0

i2c i2c-0: <i2c_imx_xfer> STATUS: ICF=1, IAAS=0, IBB=1, IAL=0, SRW=0, IIF=0, RXAK=1

i2c i2c-0: <i2c_imx_write> write slave address: addr=0xb8

i2c i2c-0: <i2c_imx_trx_complete> TRX complete

i2c i2c-0: <i2c_imx_acked> No ACK

i2c i2c-0: <i2c_imx_stop>

i2c i2c-0: <i2c_imx_bus_busy>

i2c i2c-0: <i2c_imx_xfer> exit with: error: -5

I try use OBDS (I201139_mx53_sbrth_lcb_release.tar.gz), unfortunally it not run on our board.

How can I solve this problem?

Thank you and excuse me my bad english.

Re: I2C1 not work

BrilliantovKiri — Thu, 17 Jan 2013 08:44:14 GMT

Problem solved, I think problem was in a particular sample our board, now I2C1 work in Linux.

Unfortunally I can't check I2C in U-Boot because I2C not work in U-Boot if I load it via MFGTool, I check this on QSB-R.

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