[U-Boot] [PATCH] mmc: fsl_esdhc: update eMMC44 adapter card erase timeout
Pantelis Antoniou
pantelis.antoniou at gmail.com
Tue May 5 11:37:58 CEST 2015
Hi Yango,
> On Apr 15, 2015, at 05:13 , Yangbo Lu <yangbo.lu at freescale.com> wrote:
>
> Freescale eMMC44 adapter card uses Micron N2M400FDB311A3CF eMMC
> memory. According to the silicon datasheet, secure erase timeout
> is 600ms. So increase erase timeout value from 250ms to 600ms.
>
> Signed-off-by: Yangbo Lu <yangbo.lu at freescale.com>
> Cc: York Sun <yorksun at freescale.com>
> ---
> drivers/mmc/fsl_esdhc.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
> index f5d2ccb..e879fc0 100644
> --- a/drivers/mmc/fsl_esdhc.c
> +++ b/drivers/mmc/fsl_esdhc.c
> @@ -344,9 +344,9 @@ esdhc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
>
> /* Workaround for ESDHC errata ENGcm03648 */
> if (!data && (cmd->resp_type & MMC_RSP_BUSY)) {
> - int timeout = 2500;
> + int timeout = 6000;
>
> - /* Poll on DATA0 line for cmd with busy signal for 250 ms */
> + /* Poll on DATA0 line for cmd with busy signal for 600 ms */
> while (timeout > 0 && !(esdhc_read32(®s->prsstat) &
> PRSSTAT_DAT0)) {
> udelay(100);
> --
> 2.1.0.27.g96db324
Applied, Thanks.
— Pantelis
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