| Message ID | 20240429071955.163282-1-xiaokeqinhealth@126.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [v3,1/1] mmc: core: increase the timeout period of the ACMD41 command. | expand |
> 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@126.com> Acked-by: Avri Altman <avri.altman@wdc.com>
Hello Felix, On 2024-04-29 09:19, Felix Qin 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@126.com> After going through the associated discussion [1] and after reviewing the associated preparatory patch, [2] this patch is surely looking good to me. Reviewed-by: Dragan Simic <dsimic@manjaro.org> [1] https://lore.kernel.org/linux-mmc/CAPDyKFqdA8yisf6tY4gJ-ejk5azTUOZOkZhySYjeHJKibVraLg@mail.gmail.com/ [2] https://lore.kernel.org/all/20240425133034.79599-1-ulf.hansson@linaro.org/ > --- > 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;
On Mon, 29 Apr 2024 at 09:20, Felix Qin <xiaokeqinhealth@126.com> 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@126.com> 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 >
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;
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@126.com> --- 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(-)