On Mon, 29 Apr 2024 at 09:20, Felix Qin <xiaokeqinhealth@xxxxxxx> wrote:
>
> Extensive testing has shown that some specific SD cards require an
> increased command timeout to be successfully initialized.
>
> More info:
> Platform: Rockchip SoC + DW Multimedia host Controller
> SD card: Xvv microSD CMH34A17TMA12 (Made in Korea)
> Note: The SD card is custom-made by the customer in collaboration
> with the wafer foundry.
>
> Signed-off-by: Felix Qin <xiaokeqinhealth@xxxxxxx>
Applied for next, thanks!
Kind regards
Uffe
>
> ---
> v2: Add more info
> v3: Based on the __mmc_poll_for_busy API for modification
> ---
> drivers/mmc/core/sd_ops.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/core/sd_ops.c b/drivers/mmc/core/sd_ops.c
> index 3ce1ff336826..a1c028303ba7 100644
> --- a/drivers/mmc/core/sd_ops.c
> +++ b/drivers/mmc/core/sd_ops.c
> @@ -19,8 +19,13 @@
> #include "sd_ops.h"
> #include "mmc_ops.h"
>
> +/*
> + * Extensive testing has shown that some specific SD cards
> + * require an increased command timeout to be successfully
> + * initialized.
> + */
> #define SD_APP_OP_COND_PERIOD_US (10 * 1000) /* 10ms */
> -#define SD_APP_OP_COND_TIMEOUT_MS 1000 /* 1s */
> +#define SD_APP_OP_COND_TIMEOUT_MS 2000 /* 2s */
>
> struct sd_app_op_cond_busy_data {
> struct mmc_host *host;
> --
> 2.34.1
>
