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SPI MMC Driver don't work?

Question asked by open on Nov 2, 2011
Latest reply on Nov 3, 2011 by open

hi,

     all

 

     i do step by step in accordance with this doucment :  https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:drivers:spi_mmc

     but after download to my bf561 board ,i can't find /dev/mmcblk0p* in my uclinux. here is boot info:

 

……

 

bio: create slab <bio-0> at 0
bfin-spi bfin-spi.0: Blackfin on-chip SPI Controller Driver, Version 1.0, regs_base@ffc00500, dma channel@16
Switching to clocksource bfin_cs_cycles

……

mmc_spi spi0.6: ASSUMING SPI bus stays unshared!

mmc_spi spi0.6: ASSUMING 3.2-3.4 V slot power

mmc_spi spi0.6: SD/MMC host mmc0, no DMA, no WP, no poweroff

TCP cubic registered

NET: Registered protocol family 17

dma_alloc_init: dma_page @ 0x04863000 - 256 pages at 0x07f00000

Freeing unused kernel memory: 6880k freed

mmc_spi spi0.6: can't change chip-select polarity

……

 

    and  i try to use the spi driver only, but i can't find the /dev/spidev<bus> , so why i can't find any spi dev in folder of /dev?

 

    my uclinux version is 2.6.34 work on bf561.

 

thank you!

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