[U-Boot] [PATCH 12/12 V3] DWMMC: SMDK5420: Disable SMU for eMMC

[Rajeshwari Birje]

Hi Simon,

Thank you for comments.
Will add a check so that it will be executed only for Exynos5420 boards.

Thanks and Regards,
Rajeshwari.


On Thu, Sep 19, 2013 at 11:42 AM, Simon Glass <sjg at chromium.org> wrote:
> Hi Rajeshwari,
>
> On Wed, Sep 11, 2013 at 4:01 AM, Rajeshwari S Shinde <
> rajeshwari.s at samsung.com> wrote:
>
>> SMDK5420 has a new Security Management Unit added
>> for dwmmc driver, hence, configuring the control
>> registers to support booting via eMMC.
>>
>> Signed-off-by: Alim Akhtar <alim.akhtar at samsung.com>
>> Signed-off-by: Rajeshwari Shinde <rajeshwari.s at samsung.com>
>> ---
>> Changes in V3:
>>         - New patch.
>>  drivers/mmc/dw_mmc.c |  7 +++++++
>>  include/dwmmc.h      | 12 ++++++++++++
>>  2 files changed, 19 insertions(+)
>>
>> diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
>> index a82ee17..d763949 100644
>> --- a/drivers/mmc/dw_mmc.c
>> +++ b/drivers/mmc/dw_mmc.c
>> @@ -300,6 +300,13 @@ static int dwmci_init(struct mmc *mmc)
>>         struct dwmci_host *host = (struct dwmci_host *)mmc->priv;
>>         u32 fifo_size;
>>
>> +       dwmci_writel(host, EMMCP_MPSBEGIN0, 0);
>> +       dwmci_writel(host, EMMCP_SEND0, 0);
>> +       dwmci_writel(host, EMMCP_CTRL0,
>> +               MPSCTRL_SECURE_READ_BIT | MPSCTRL_SECURE_WRITE_BIT |
>> +               MPSCTRL_NON_SECURE_READ_BIT | MPSCTRL_NON_SECURE_WRITE_BIT
>> |
>> +               MPSCTRL_VALID);
>> +
>>
>
> Is this safe for all users of this file (Exynos5250, etc. ?
>
> Regards,
> Simon
>
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-- 
Regards,
Rajeshwari Shinde