You can refer to Seungwon's patch.

https://patchwork.kernel.org/patch/1814991/

Best Regards,
Jaehoon Chung

On 08/02/2013 12:50 PM, [email protected] wrote:
> From: Dinh Nguyen <[email protected]>
> 
> The Handle the Hardware Locked Write Error(HLE) was getting triggered
> intermittently on the SOCFPGA platform. But since the driver did not
> have a mechanism to handle this interrupt, it was stuck in the ISR.
> 
> Clear the HLE interrupt when it gets triggered.
> 
> Signed-off-by: Dinh Nguyen <[email protected]>
> Cc: Doug Anderson <[email protected]>
> Cc: Jaehoon Chung <[email protected]>
> Cc: James Hogan <[email protected]>
> Cc: Seungwon Jeon <[email protected]>
> Cc: Chris Ball <[email protected]>
> ---
>  drivers/mmc/host/dw_mmc.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
> index ee5f167..ef30bec 100644
> --- a/drivers/mmc/host/dw_mmc.c
> +++ b/drivers/mmc/host/dw_mmc.c
> @@ -1664,6 +1664,9 @@ static irqreturn_t dw_mci_interrupt(int irq, void 
> *dev_id)
>                       queue_work(host->card_workqueue, &host->card_work);
>               }
>  
> +             if (pending & SDMMC_INT_HLE)
> +                     mci_writel(host, RINTSTS, SDMMC_INT_HLE);
> +
>               /* Handle SDIO Interrupts */
>               for (i = 0; i < host->num_slots; i++) {
>                       struct dw_mci_slot *slot = host->slot[i];
> 

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