i.MX ProcessorsのトピックRe: Random Stability issue with some SDHC cards on i.MX6

i.MX ProcessorsのトピックRe: Random Stability issue with some SDHC cards on i.MX6 https://community.nxp.com/t5/i-MX-Processors/Random-Stability-issue-with-some-SDHC-cards-on-i-MX6/m-p/395507#M57938 <HTML><HEAD></HEAD><BODY><P>Can you suggest us the drive strength values for that this issue might solve.</P></BODY></HTML> Thu, 21 Jun 2018 09:30:54 GMT sudheerkumark 2018-06-21T09:30:54Z Random Stability issue with some SDHC cards on i.MX6 https://community.nxp.com/t5/i-MX-Processors/Random-Stability-issue-with-some-SDHC-cards-on-i-MX6/m-p/395504#M57935 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I have some stability issues with some SD cards on i.MX6DL running Kerenel 3.10.  The MicroSD card I am using is a SanDisk MiroSD UHS-I with 8GB storage capacity.</P><P></P><P>As my board doesn't support 1.8V required for UHS-I, the bus mode High-Speed (with 3.3v) is automatically selected by kernel:</P><P></P><P><SPAN style="font-family: courier new,courier;">root@imx6qsabresd:/data# cat /sys/kernel/debug/mmc1/ios</SPAN></P><P><SPAN style="font-family: courier new,courier;">clock:          50000000 Hz</SPAN></P><P><SPAN style="font-family: courier new,courier;">actual clock:   49500000 Hz</SPAN></P><P><SPAN style="font-family: courier new,courier;">vdd:            17 (2.9 ~ 3.0 V)</SPAN></P><P><SPAN style="font-family: courier new,courier;">bus mode:       2 (push-pull)</SPAN></P><P><SPAN style="font-family: courier new,courier;">chip select:    0 (don't care)</SPAN></P><P><SPAN style="font-family: courier new,courier;">power mode:     2 (on)</SPAN></P><P><SPAN style="font-family: courier new,courier;">bus width:      2 (4 bits)</SPAN></P><P><SPAN style="font-family: courier new,courier;">timing spec:    2 (sd high-speed)</SPAN></P><P><SPAN style="font-family: courier new,courier;">signal voltage: 0 (3.30 V)</SPAN></P><P></P><P>However, sometimes I randomly got errors like:</P><P></P><P><SPAN style="font-family: courier new,courier;"><STRONG>mmcblk0: error -110 sending stop command, original cmd response 0x0, card status 0x400900</STRONG></SPAN></P><P><SPAN style="font-family: courier new,courier;"><STRONG>mmcblk0: error -110 transferring data, sector 9136, nr 8, cmd response 0x0, card status 0x0</STRONG></SPAN></P><P></P><P>during read/write. Also, sometimes during the boot (or after removing and reinserting the card) the kernel cannot detect the card (or clock frequency) to work with. In this case, removing and reinserting the card several times didn't solve the issue. However, rebooting the board sometimes solves it.</P><P></P><P></P><P>The following log is kernel messages after I inserted the card and kernel failed to recognize it (I've define DEBUG in the sdhci-esdhc-imx.c):</P><P></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: change pinctrl state for uhs 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: change pinctrl state for uhs 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: desired SD clock: 400000, actual: 386718</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: change pinctrl state for uhs 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: desired SD clock: 400000, actual: 386718</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: change pinctrl state for uhs 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: desired SD clock: 400000, actual: 386718</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: change pinctrl state for uhs 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: desired SD clock: 400000, actual: 386718</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: change pinctrl state for uhs 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: desired SD clock: 400000, actual: 386718</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: change pinctrl state for uhs 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: desired SD clock: 400000, actual: 386718</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: change pinctrl state for uhs 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: desired SD clock: 400000, actual: 386718</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: change pinctrl state for uhs 2</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: desired SD clock: 400000, actual: 386718</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: desired SD clock: 50000000, actual: 49500000</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: change pinctrl state for uhs 2</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: desired SD clock: 50000000, actual: 49500000</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: change pinctrl state for uhs 2</SPAN></P><P><SPAN style="font-family: courier new,courier;">sdhci-esdhc-imx 2194000.usdhc: desired SD clock: 50000000, actual: 49500000</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmc1: new high speed SDHC card at address 0007</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: mmc1:0007 SD08G 7.42 GiB</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">blk_update_request: 89 callbacks suppressed</SPAN></P><P><SPAN style="font-family: courier new,courier;">end_request: I/O error, dev mmcblk0, sector 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">quiet_error: 81 callbacks suppressed</SPAN></P><P><SPAN style="font-family: courier new,courier;">Buffer I/O error on device mmcblk0, logical block 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">end_request: I/O error, dev mmcblk0, sector 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">Buffer I/O error on device mmcblk0, logical block 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">end_request: I/O error, dev mmcblk0, sector 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">Buffer I/O error on device mmcblk0, logical block 0</SPAN></P><P><SPAN style="font-family: courier new,courier;"> mmcblk0: unable to read partition table</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">end_request: I/O error, dev mmcblk0, sector 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">Buffer I/O error on device mmcblk0, logical block 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">end_request: I/O error, dev mmcblk0, sector 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">Buffer I/O error on device mmcblk0, logical block 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">end_request: I/O error, dev mmcblk0, sector 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">Buffer I/O error on device mmcblk0, logical block 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">end_request: I/O error, dev mmcblk0, sector 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">Buffer I/O error on device mmcblk0, logical block 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">end_request: I/O error, dev mmcblk0, sector 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">Buffer I/O error on device mmcblk0, logical block 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">end_request: I/O error, dev mmcblk0, sector 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">Buffer I/O error on device mmcblk0, logical block 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">end_request: I/O error, dev mmcblk0, sector 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">Buffer I/O error on device mmcblk0, logical block 0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 131072, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 131072, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 131073, nr 7, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 131074, nr 6, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 131075, nr 5, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 131076, nr 4, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 131077, nr 3, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 131078, nr 2, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 131079, nr 1, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: retrying using single block read</SPAN></P><P><SPAN style="font-family: courier new,courier;">mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0x0</SPAN></P></BODY></HTML> Wed, 14 Oct 2015 14:21:56 GMT https://community.nxp.com/t5/i-MX-Processors/Random-Stability-issue-with-some-SDHC-cards-on-i-MX6/m-p/395504#M57935 isaacnickaein 2015-10-14T14:21:56Z Re: Random Stability issue with some SDHC cards on i.MX6 https://community.nxp.com/t5/i-MX-Processors/Random-Stability-issue-with-some-SDHC-cards-on-i-MX6/m-p/395505#M57936 <HTML><HEAD></HEAD><BODY><P>Hi Isaac</P><P></P><P>if issue appears only with some cards that may be related to</P><P>signal integrity, try to tweak drive strength both for processor pads</P><P>and SD card (CMD6 selects driver strength). One can recheck SD signals</P><P>layout with  i.MX6 System Development User’s Guide (rev.1, 6/2013)</P><P></P><P><A class="jive-link-external-small" href="http://cache.freescale.com/files/32bit/doc/user_guide/IMX6DQ6SDLHDG.pdf" rel="nofollow">http://cache.freescale.com/files/32bit/doc/user_guide/IMX6DQ6SDLHDG.pdf</A></P><P></P><P>Best regards</P><P>igor</P><P>-----------------------------------------------------------------------------------------------------------------------</P><P>Note: If this post answers your question, please click the Correct Answer button. Thank you!</P><P>-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 15 Oct 2015 01:39:05 GMT https://community.nxp.com/t5/i-MX-Processors/Random-Stability-issue-with-some-SDHC-cards-on-i-MX6/m-p/395505#M57936 igorpadykov 2015-10-15T01:39:05Z Re: Random Stability issue with some SDHC cards on i.MX6 https://community.nxp.com/t5/i-MX-Processors/Random-Stability-issue-with-some-SDHC-cards-on-i-MX6/m-p/395506#M57937 <HTML><HEAD></HEAD><BODY><P>It appears on emmc，it will lead the machine couldn't run into system.</P></BODY></HTML> Mon, 21 Nov 2016 09:05:28 GMT https://community.nxp.com/t5/i-MX-Processors/Random-Stability-issue-with-some-SDHC-cards-on-i-MX6/m-p/395506#M57937 llp 2016-11-21T09:05:28Z Re: Random Stability issue with some SDHC cards on i.MX6 https://community.nxp.com/t5/i-MX-Processors/Random-Stability-issue-with-some-SDHC-cards-on-i-MX6/m-p/395507#M57938 <HTML><HEAD></HEAD><BODY><P>Can you suggest us the drive strength values for that this issue might solve.</P></BODY></HTML> Thu, 21 Jun 2018 09:30:54 GMT https://community.nxp.com/t5/i-MX-Processors/Random-Stability-issue-with-some-SDHC-cards-on-i-MX6/m-p/395507#M57938 sudheerkumark 2018-06-21T09:30:54Z