Elie De Brauwer wrote: > Hello list, > > I have a P2020 processor on a custom board which uses the embedded > fsl-esdhc controller. Hardware-wise this is functional and in u-boot > everything seems to behave (mmc part 0 gives the correct partition table > and ext2ls/fatls are capable of reading the contents of the sd card). > > However as soon as I start Linux (2.6.36), I get all sorts of unwanted > behavior. Linux is unable to detect the partition layout (but if I do a
Can you re-partition that under Linux? i.e, you can use fdisk to do this. Then I'm a bit curious what it'll be happened. > hexdump of the MBR, I see the endianness is swapped (last 4 bytes are aa > 55 00 00). Also when I try to obtain the card registers they show the > same behavior: > # cat ./devices/soc.0/ff72e000.sdhci/mmc_host/mmc0/mmc0:0001/scr > 0000b50200000000 > > While for comparison the same value on my (x86) laptop gives: > edb@lapedb:/sys/devices/pci0000:00/0000:00:1e.0/0000:15:00.2/mmc_host/mmc0/mmc0:0001$ > cat scr > 02b5000000000000 > > In my config I have the following set: > CONFIG_MMC_SDHCI=y > CONFIG_MMC_SDHCI_IO_ACCESSORS=y > CONFIG_MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER=y > # CONFIG_MMC_SDHCI_PCI is not set > CONFIG_MMC_SDHCI_OF=y > CONFIG_MMC_SDHCI_OF_ESDHC=y At least looks the config is fine. Tiejun > > > any pointers are welcome. > > gr > E. > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
