On Aug 2, 2007, at 9:26 AM, Anton Vorontsov wrote:
> For MPC8349E input to SPIBRG is SYSCLK, but it's SYSCLK/2 for
> MPC8323E (running in so-called "QE mode").
QE mode or the SPI in QE running in CPU mode?
- k
>
> This fixes clocking issues I've noticed recently.
>
> Probably someday mpc83xx_spi->sysclk should be renamed to
> mpc83xx_spi->spiclk to be less confusing.
>
> Signed-off-by: Anton Vorontsov <[EMAIL PROTECTED]>
> ---
> drivers/spi/spi_mpc83xx.c | 6 +++++-
> 1 files changed, 5 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/spi/spi_mpc83xx.c b/drivers/spi/spi_mpc83xx.c
> index 0c16a2b..55230f7 100644
> --- a/drivers/spi/spi_mpc83xx.c
> +++ b/drivers/spi/spi_mpc83xx.c
> @@ -429,13 +429,17 @@ static int __init mpc83xx_spi_probe(struct
> platform_device *dev)
> mpc83xx_spi->bitbang.chipselect = mpc83xx_spi_chipselect;
> mpc83xx_spi->bitbang.setup_transfer = mpc83xx_spi_setup_transfer;
> mpc83xx_spi->bitbang.txrx_bufs = mpc83xx_spi_bufs;
> - mpc83xx_spi->sysclk = pdata->sysclk;
> mpc83xx_spi->activate_cs = pdata->activate_cs;
> mpc83xx_spi->deactivate_cs = pdata->deactivate_cs;
> mpc83xx_spi->qe_mode = pdata->qe_mode;
> mpc83xx_spi->get_rx = mpc83xx_spi_rx_buf_u8;
> mpc83xx_spi->get_tx = mpc83xx_spi_tx_buf_u8;
>
> + if (mpc83xx_spi->qe_mode)
> + mpc83xx_spi->sysclk = pdata->sysclk / 2;
> + else
> + mpc83xx_spi->sysclk = pdata->sysclk;
> +
> mpc83xx_spi->rx_shift = 0;
> mpc83xx_spi->tx_shift = 0;
> if (mpc83xx_spi->qe_mode) {
> --
> 1.5.0.6
> _______________________________________________
> Linuxppc-dev mailing list
> [EMAIL PROTECTED]
> https://ozlabs.org/mailman/listinfo/linuxppc-dev
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