On 9 September 2014 04:13, Sun, Yi Y <[email protected]> wrote:
> Kind remind.
>
> BRs,
> Yi Sun
>
> -----Original Message-----
> From: Sun, Yi Y
> Sent: Thursday, August 14, 2014 1:52 PM
> To: [email protected]; [email protected]
> Cc: Sun, Yi Y
> Subject: [PATCH v2] mmc: execute tuning when device is not busy.
>
> We find tuning timeout because of the secure erase operation lasts too long
> so not to do tuning when device is busy.
>
> Signed-off-by: Yi Sun <[email protected]>
So I have applied this for next.
Though the patch had checkpatch errors related to your email and
author of the patch. I have fixed it according to what your sob tag
stated.
Kind regards
Uffe
> ---
> drivers/mmc/host/sdhci.c | 7 ++++---
> drivers/mmc/host/sdhci.h | 1 +
> 2 files changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index
> 47055f3..6a584d7 100644
> --- a/drivers/mmc/host/sdhci.c
> +++ b/drivers/mmc/host/sdhci.c
> @@ -1355,11 +1355,12 @@ static void sdhci_request(struct mmc_host *mmc,
> struct mmc_request *mrq)
> present_state = sdhci_readl(host, SDHCI_PRESENT_STATE);
> /*
> * Check if the re-tuning timer has already expired and there
> - * is no on-going data transfer. If so, we need to execute
> - * tuning procedure before sending command.
> + * is no on-going data transfer and DAT0 is not busy. If so,
> + * we need to execute tuning procedure before sending command.
> */
> if ((host->flags & SDHCI_NEEDS_RETUNING) &&
> - !(present_state & (SDHCI_DOING_WRITE |
> SDHCI_DOING_READ))) {
> + !(present_state & (SDHCI_DOING_WRITE | SDHCI_DOING_READ))
> &&
> + (present_state & SDHCI_DATA_0_LVL_MASK)) {
> if (mmc->card) {
> /* eMMC uses cmd21 but sd and sdio use cmd19
> */
> tuning_opcode =
> diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index
> 4a5cd5e..0ae6b99d 100644
> --- a/drivers/mmc/host/sdhci.h
> +++ b/drivers/mmc/host/sdhci.h
> @@ -72,6 +72,7 @@
> #define SDHCI_WRITE_PROTECT 0x00080000
> #define SDHCI_DATA_LVL_MASK 0x00F00000
> #define SDHCI_DATA_LVL_SHIFT 20
> +#define SDHCI_DATA_0_LVL_MASK 0x00100000
>
> #define SDHCI_HOST_CONTROL 0x28
> #define SDHCI_CTRL_LED 0x01
> --
> 1.7.9.5
>
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