17 Aug, 2017

1 commit


10 Oct, 2016

1 commit


05 Aug, 2016

1 commit


28 Jul, 2016

2 commits


12 Jul, 2016

2 commits


28 May, 2016

1 commit


01 Dec, 2015

1 commit


03 Sep, 2015

1 commit


22 Jul, 2015

1 commit


24 Feb, 2015

1 commit


06 Oct, 2014

1 commit

  • The DMA descriptors used by the DW MMC block must be aligned to cacheline
    size, otherwise we are unable to properly flush/inval cache over them and
    we get data corruption.

    The reason I chose this approach of expanding the structure is because
    the driver allocates the descriptors in bulk. This approach does waste
    space by inserting slop inbetween the descriptors, but it makes access
    to the descriptors easy as the compiler does know the real size of the
    structure. It also makes cache operations easy, since the size of the
    structure is cache aligned and the structure start address is as well.

    Signed-off-by: Marek Vasut
    Cc: Chin Liang See
    Cc: Dinh Nguyen
    Cc: Albert Aribaud
    Cc: Tom Rini
    Cc: Wolfgang Denk
    Cc: Pavel Machek
    Cc: Pantelis Antoniou
    Acked-by: Pavel Machek

    Marek Vasut
     

16 May, 2014

2 commits


24 Mar, 2014

1 commit

  • The way that struct mmc was implemented was a bit of a mess;
    configuration and internal state all jumbled up in a single structure.

    On top of that the way initialization is done with mmc_register leads
    to a lot of duplicated code in drivers.

    Typically the initialization got something like this in every driver.

    struct mmc *mmc = malloc(sizeof(struct mmc));
    memset(mmc, 0, sizeof(struct mmc);
    /* fill in fields of mmc struct */
    /* store private data pointer */
    mmc_register(mmc);

    By using the new mmc_create call one just passes an mmc config struct
    and an optional private data pointer like this:

    struct mmc = mmc_create(&cfg, priv);

    All in tree drivers have been updated to the new form, and expect
    mmc_register to go away before long.

    Changes since v1:

    * Use calloc instead of manually calling memset.
    * Mark mmc_register as deprecated.

    Signed-off-by: Pantelis Antoniou

    Pantelis Antoniou
     

07 Feb, 2014

1 commit

  • This patch corrects the divider value written to CLKDIV register.
    Since SDCLKIN is divided inside controller by the DIVRATIO value set
    in the CLKSEL register, we need to use the same output clock value to
    calculate the CLKDIV value.
    as per user manual: cclk_in = SDCLKIN / (DIVRATIO + 1)

    Input parameter to mmc_clk is changed to dwmci_host, since
    we need the same to read DWMCI_CLKSEL register.

    This improves the read timing values for channel 0 on SMDK5250
    from 0.288sec to 0.144sec

    Signed-off-by: Rajeshwari S Shinde
    Acked-by: Jaehoon Chung
    Signed-off-by: Pantelis Antoniou

    Rajeshwari S Shinde
     

08 Dec, 2013

1 commit


31 Oct, 2013

2 commits


24 Jul, 2013

1 commit


13 Jun, 2013

1 commit

  • This patch adds FDT support for DWMMC, by reading the DWMMC node data
    from the device tree and initialising DWMMC channels as per data
    obtained from the node.

    Signed-off-by: Vivek Gautam
    Signed-off-by: Amar
    Acked-by: Simon Glass
    Signed-off-by: Minkyu Kang

    Amar
     

22 Oct, 2012

1 commit