Sebastian Heutling <heutling <at> who-ing.de> writes:
Hi Konrad,
are you using the AT91SAM9G20-EK?
In that case the difference between us is that I'm working on a different board which is using the slotb MCI while the AT91SAM9G20-EK uses slota.
In case of slota it just worked because MCI_SDCR is 0 on reset but for slotb the SDCSEL field must be set to 1.
Regards
Sebastian Heutling
On 10/01/2009 09:59 AM, Konrad Mattheis wrote:
Hi,
for me this is working:
Downloaded u-boot 2009.08
file cpu/arm926ejs/at91/at91sam9260_devices.c
changed:
#if defined(CONFIG_HAS_DATAFLASH)
to:
#if defined(CONFIG_HAS_DATAFLASH) || defined(CONFIG_ATMEL_SPI)
patches:
SOC headers: http://lists.denx.de/pipermail/u-boot/2009-September/060053.html
SD Patch V3 http://lists.denx.de/pipermail/u-boot/2009-September/060243.html
MCI support http://lists.denx.de/pipermail/u-boot/2009-August/059595.html
add to board init code:
at91_mciX_hw_init (X for mci unit 0 / 1) for parameters have a look at
cpu/arm926ejs/at91/at91sam9260_devices.c
bye Konrad Mattheis
Hello,
Thanks a lot for your post. Could you please let me know what configurations are to be added to /include/configs/board.h file to enable MMC/SD support. I've added the following configurations
/* MMC/SD Support */
/* To include File system support for MMC */ #define CONFIG_DOS_PARTITION #define CONFIG_CMD_EXT2 #define CONFIG_CMD_FAT #define CONFIG_MMC #define CONFIG_GENERIC_MMC #define CONFIG_DAVINCI_MMC #define CONFIG_CMD_MM
/* To enable Environment variables to reside on MMC. */ #define CONFIG_DOS_PARTITION 1 //#undef CONFIG_MMC #define CONFIG_SYS_MMC_BASE 0xFFFB4000 #define CONFIG_SYS_MMC_BLOCKSIZE 512
and when I enter mmcinit, u-boot says command not found. Please find the logs: and thanks alot for your time :)
Electrum> mmcElectrum> mmc Usage: MMC sub system Electrum> mmcinit Unknown command 'mmcinit' - try 'help' Electrum> mmcinfo MMC Device 0 not found
Thanks, Kalyan.