[En-Nut-Discussion] MMC speed

[Ole Reinhardt]

Hi!

> What is the speed on the spi when using mmc/sd card and phat file system on
> a at91sam7x? Can you set the speed somewhere?

Everything is defined in arch/arm/dev/spimmc_at91.c

This is the line you might want to change:

outr(MMC_SPI_CSR1, (3 << SPI_SCBR_LSB) | SPI_CPOL);

In this case the spi clock is MCK devided by 3.

Regards,

Ole Reinhardt

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