Hi,
On 07/12/2017 01:20 AM, Jean-Jacques Hiblot wrote:
> From: Kishon Vijay Abraham I <[email protected]>
>
> Instead of sending STOP TRANSMISSION command from MMC core, enable
> the auto command feature so that the Host Controller issues CMD12
> automatically when last block transfer is completed.
>
> Signed-off-by: Kishon Vijay Abraham I <[email protected]>
> Signed-off-by: Jean-Jacques Hiblot <[email protected]>
> ---
> drivers/mmc/omap_hsmmc.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
> index 3419dc5..3ee81bb 100644
> --- a/drivers/mmc/omap_hsmmc.c
> +++ b/drivers/mmc/omap_hsmmc.c
> @@ -490,6 +490,10 @@ static int omap_hsmmc_send_cmd(struct udevice *dev,
> struct mmc_cmd *cmd,
> ulong start;
>
> mmc_base = priv->base_addr;
> +
> + if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
> + return 0;
Just i wonder that there is no side-effect..I'm not sure that all omap SoCs can
be supported Auto command12.
Best Regards,
Jaehoon Chung
> +
> start = get_timer(0);
> while ((readl(&mmc_base->pstate) & (DATI_MASK | CMDI_MASK)) != 0) {
> if (get_timer(0) - start > MAX_RETRY_MS) {
> @@ -546,7 +550,7 @@ static int omap_hsmmc_send_cmd(struct udevice *dev,
> struct mmc_cmd *cmd,
> if (data) {
> if ((cmd->cmdidx == MMC_CMD_READ_MULTIPLE_BLOCK) ||
> (cmd->cmdidx == MMC_CMD_WRITE_MULTIPLE_BLOCK)) {
> - flags |= (MSBS_MULTIBLK | BCE_ENABLE);
> + flags |= (MSBS_MULTIBLK | BCE_ENABLE | ACEN_ENABLE);
> data->blocksize = 512;
> writel(data->blocksize | (data->blocks << 16),
> &mmc_base->blk);
>
_______________________________________________
U-Boot mailing list
[email protected]
https://lists.denx.de/listinfo/u-boot
