On Wednesday, January 04, 2012 01:22:29 AM Peter Bigot <bigotp at acm.org>
wrote:
> I got this to work with two changes:
>
> * s/MMC_TIMEOUT_USEC/MMC_TIMEOUT_MSEC/g and define MMC_TIMEOUT_MSEC
> 20, since get_timer does operate on msec in the current meta-ti
> BeagleBoard-xM
>
> * The patch below, which is what I think fixes the real problem (that
> PSTATE.CMDI is still lit up when the function is entered).
>
> diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
> index c38b9e6..62b659a 100644
> --- a/drivers/mmc/omap_hsmmc.c
> +++ b/drivers/mmc/omap_hsmmc.c
> @@ -198,7 +198,8 @@ static int mmc_send_cmd(struct mmc *mmc, struct
> mmc_cmd *cmd,
> ulong start;
>
> start = get_timer(0);
> - while ((readl(&mmc_base->pstate) & DATI_MASK) == DATI_CMDDIS) {
> +#define CMDI_MASK (0x1 << 0)
> + while ((readl(&mmc_base->pstate) & (DATI_MASK | CMDI_MASK))) {
> if (get_timer(0) - start > MAX_RETRY_MS) {
> printf("%s: timedout waiting for cmddis!\n",
> __func__); return TIMEOUT;
>
> Peter
I tested this with success and I think this is the correct solution.
Peter: can you send a proper patch for this?
Andreas
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