topic Re: U-boot Error after plugging in raspberry pi camera in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/U-boot-Error-after-plugging-in-raspberry-pi-camera/m-p/557428#M86680 <HTML><HEAD></HEAD><BODY><P>Hi Ali</P><P></P><P>message is caused by function force_idle_bus()</P><P>waiting for:&nbsp; if ((sda &amp; scl) == 1) in<BR />uboot..arch/arm/imx-common/i2c-mxv7.c</P><P>one can attach jtag and debug it more, checking</P><P>i2c signals with oscilloscope. Seems somebody holds bus in low state.</P><P></P><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 25 Aug 2016 03:12:36 GMT igorpadykov 2016-08-25T03:12:36Z U-boot Error after plugging in raspberry pi camera https://community.nxp.com/t5/i-MX-Processors/U-boot-Error-after-plugging-in-raspberry-pi-camera/m-p/557427#M86679 <HTML><HEAD></HEAD><BODY><P>So I am doing some experimenting with the raspberry pi camera (Sony IMX219). I am using the SCM-QWKS quick startup board. When I plug the ribbon cable of the camera into the MIPI/CSI port and boot up my board, I get the following error:</P><P></P><P>U-Boot 2015.04-imx_v2015.04_3.14.52_1.1.0_ga+g6cf684a (Aug 17 2016 - 08:19:11)</P><P>CPU: Freescale i.MX6Q rev1.5 at 792 MHz<BR />CPU: Temperature 36 C<BR />Reset cause: POR<BR />Board: MX6DQSCM-QWKS<BR />I2C: ready<BR />DRAM: 1 GiB<BR />force_idle_bus: sda=0 scl=0 sda.gp=0x6d scl.gp=0x6c<BR />force_idle_bus: failed to clear bus, sda=0 scl=0<BR />wait_for_sr_state: Arbitration lost sr=93 cr=80 state=2020<BR />i2c_init_transfer: failed for chip 0x8 retry=0<BR />wait_for_sr_state: Arbitration lost sr=93 cr=80 state=2020<BR />i2c_init_transfer: failed for chip 0x8 retry=1<BR />wait_for_sr_state: Arbitration lost sr=93 cr=80 state=2020<BR />i2c_init_transfer: failed for chip 0x8 retry=2<BR />i2c_init_transfer: give up i2c_regs=021a4000<BR />Can't find PMIC:PFUZE100<BR />initcall sequence 2ff93350 failed at call 17803688 (err=-19)<BR />### ERROR ### Please RESET the board ###</P><P></P><P>I am not sure why when I plug the camera in, I get this error. Looks like there is some i2c issue.</P></BODY></HTML> Wed, 24 Aug 2016 16:31:06 GMT https://community.nxp.com/t5/i-MX-Processors/U-boot-Error-after-plugging-in-raspberry-pi-camera/m-p/557427#M86679 aliismail 2016-08-24T16:31:06Z Re: U-boot Error after plugging in raspberry pi camera https://community.nxp.com/t5/i-MX-Processors/U-boot-Error-after-plugging-in-raspberry-pi-camera/m-p/557428#M86680 <HTML><HEAD></HEAD><BODY><P>Hi Ali</P><P></P><P>message is caused by function force_idle_bus()</P><P>waiting for:&nbsp; if ((sda &amp; scl) == 1) in<BR />uboot..arch/arm/imx-common/i2c-mxv7.c</P><P>one can attach jtag and debug it more, checking</P><P>i2c signals with oscilloscope. Seems somebody holds bus in low state.</P><P></P><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 25 Aug 2016 03:12:36 GMT https://community.nxp.com/t5/i-MX-Processors/U-boot-Error-after-plugging-in-raspberry-pi-camera/m-p/557428#M86680 igorpadykov 2016-08-25T03:12:36Z