Re: [PATCHv5] mmc: dw_mmc: change to use recommended reset procedure

2014-07-13 Thread Jaehoon Chung
On 07/12/2014 05:53 AM, Sonny Rao wrote: > This patch changes the fifo reset code to follow the reset procedure > outlined in the documentation of Synopsys Mobile storage host databook. > > Signed-off-by: Sonny Rao > Signed-off-by: Yuvaraj Kumar C D > --- > v2: Add Generic DMA support > per

Re: [PATCH 4/4] mmc: core: hold SD Clock before CMD11 during Signal

2014-07-13 Thread Russell King - ARM Linux
On Sun, Jul 13, 2014 at 01:21:10PM +0800, Vincent Yang wrote: > Voltage Switch Procedure > > This patch is to fix an issue found on mb86s7x platforms. > > [symptom] > There are some UHS-1 SD memory cards sometimes cannot be detected correctly, > e.g., Transcend 600x SDXC 64GB UHS-1 memory card. >

Re: [PATCH 1/4] mmc: sdhci: add quirk for voltage switch callback

2014-07-13 Thread Russell King - ARM Linux
On Sun, Jul 13, 2014 at 01:21:07PM +0800, Vincent Yang wrote: > @@ -1763,6 +1763,11 @@ static int sdhci_do_start_signal_voltage_switch(struct > sdhci_host *host, > ctrl |= SDHCI_CTRL_VDD_180; > sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); > > + /* Some c