From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jaehoon Chung Date: Thu, 28 Jul 2016 17:09:25 +0900 Subject: [U-Boot] [PATCH 1/2] mmc: dw_mmc: transfer proper bytes to FIFO In-Reply-To: <1469672748-21986-1-git-send-email-xzy.xu@rock-chips.com> References: <1469672748-21986-1-git-send-email-xzy.xu@rock-chips.com> Message-ID: <5799BDB5.6090905@samsung.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Ziyuan, On 07/28/2016 11:25 AM, Ziyuan Xu wrote: > The former implement, dw_mmc will push and pop the redundant data to > FIFO, we should transfer it according to the real size. Looks good to me. Acked-by: Jaehoon Chung Best Regards, Jaehoon Chung > > Signed-off-by: Ziyuan Xu > --- > > drivers/mmc/dw_mmc.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c > index 2cf7bae..38d4a64 100644 > --- a/drivers/mmc/dw_mmc.c > +++ b/drivers/mmc/dw_mmc.c > @@ -126,6 +126,7 @@ static int dwmci_data_transfer(struct dwmci_host *host, struct mmc_data *data) > len = dwmci_readl(host, DWMCI_STATUS); > len = (len >> DWMCI_FIFO_SHIFT) & > DWMCI_FIFO_MASK; > + len = min(size, len); > for (i = 0; i < len; i++) > *buf++ = > dwmci_readl(host, DWMCI_DATA); > @@ -139,6 +140,7 @@ static int dwmci_data_transfer(struct dwmci_host *host, struct mmc_data *data) > len = fifo_depth - ((len >> > DWMCI_FIFO_SHIFT) & > DWMCI_FIFO_MASK); > + len = min(size, len); > for (i = 0; i < len; i++) > dwmci_writel(host, DWMCI_DATA, > *buf++); >