This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization.
Signed-off-by: Thomas Chou <tho...@wytron.com.tw> --- v2 remove weak func as Mike suggested. include/spi.h | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/include/spi.h b/include/spi.h index 320e50e..7887d0f 100644 --- a/include/spi.h +++ b/include/spi.h @@ -176,6 +176,14 @@ void spi_cs_activate(struct spi_slave *slave); void spi_cs_deactivate(struct spi_slave *slave); /*----------------------------------------------------------------------- + * Set transfer speed. + * This sets a new speed to be applied for next spi_xfer(). + * slave: The SPI slave + * hz: The transfer speed + */ +void spi_set_speed(struct spi_slave *slave, uint hz); + +/*----------------------------------------------------------------------- * Write 8 bits, then read 8 bits. * slave: The SPI slave we're communicating with * byte: Byte to be written -- 1.7.3.4 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
