Hi David, On Tue, Sep 16, 2014 at 11:37 AM, David Müller (ELSOFT AG) <d.mueller@xxxxxxxxx> wrote: > Hello > > I have a custom i.MX6Q based board with a Hynix eMMC chip attached to > USDHC3. OS is a vanilla Linux 3.16 with some patches. > > Loading the iMX SDHC driver results in the following error: > > modprobe sdhci-esdhc-imx > sdhci: Secure Digital Host Controller Interface driver > sdhci: Copyright(c) Pierre Ossman > sdhci-pltfm: SDHCI platform and OF driver helper > mmc0: no vqmmc regulator found > mmc0: SDHCI controller on 2198000.usdhc [2198000.usdhc] using ADMA > mmc0: BKOPS_EN bit is not set > mmc0: Card stuck in programming state! __mmc_switch > mmc0: error -110 whilst initialising MMC card > mmc0: BKOPS_EN bit is not set > mmc0: Card stuck in programming state! __mmc_switch > mmc0: error -110 whilst initialising MMC card > mmc0: BKOPS_EN bit is not set > mmc0: Card stuck in programming state! __mmc_switch > mmc0: error -110 whilst initialising MMC card > mmc0: BKOPS_EN bit is not set > mmc0: Card stuck in programming state! __mmc_switch > mmc0: error -110 whilst initialising MMC card > > > Pin muxing looks ok nevertheless I played around with it to see if it > makes a difference. I also tried the "Add delay between CMD6 and CMD13 > for Sandisk eMMC cards" workaround previously mentioned on this list. > > As the whole thing is working under U-Boot as shown below, I tend to > rule out soldering problems and non-functional hardware. > > => ver > U-Boot 2014.07-00045-g0955ecc-dirty (Aug 26 2014 - 12:47:21) > => mmc dev 1 > switch to partitions #0, OK > mmc1(part 0) is current device > => mmc info > Device: FSL_SDHC > Manufacturer ID: 90 > OEM: 14a > Name: H8G2d > Tran Speed: 52000000 > Rd Block Len: 512 > MMC version 4.41 > High Capacity: Yes > Capacity: 7.2 GiB > Bus Width: 8-bit > > > Any idea what is going wrong? > Has anybody a Hynix eMMC working under Linux? I remember having similar issues and they were fixed by this series: http://www.spinics.net/lists/linux-mmc/msg28260.html You can try linux-next as this series is already applied there already. -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
