| Message ID | 1459403598-5256-1-git-send-email-jh80.chung@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi, Picked this patch on my repository. Best Regards, Jaehoon Chung On 03/31/2016 02:53 PM, Jaehoon Chung wrote: > Some of Exynos has the Security management Unit(SMU). > This patch adds the function for controlling SMU. > > In future, if exynos needs to control SMU, it can be implemented > in "config_smu" function, not "init" function. > > Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> > --- > drivers/mmc/host/dw_mmc-exynos.c | 15 +++++++++++++-- > 1 file changed, 13 insertions(+), 2 deletions(-) > > diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c > index 8790f2a..0e989eb 100644 > --- a/drivers/mmc/host/dw_mmc-exynos.c > +++ b/drivers/mmc/host/dw_mmc-exynos.c > @@ -91,10 +91,14 @@ static inline u8 dw_mci_exynos_get_ciu_div(struct dw_mci *host) > return SDMMC_CLKSEL_GET_DIV(mci_readl(host, CLKSEL)) + 1; > } > > -static int dw_mci_exynos_priv_init(struct dw_mci *host) > +static void dw_mci_exynos_config_smu(struct dw_mci *host) > { > struct dw_mci_exynos_priv_data *priv = host->priv; > > + /* > + * If Exynos is provided the Security management, > + * set for non-ecryption mode at this time. > + */ > if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS5420_SMU || > priv->ctrl_type == DW_MCI_TYPE_EXYNOS7_SMU) { > mci_writel(host, MPSBEGIN0, 0); > @@ -104,6 +108,13 @@ static int dw_mci_exynos_priv_init(struct dw_mci *host) > SDMMC_MPSCTRL_VALID | > SDMMC_MPSCTRL_NON_SECURE_WRITE_BIT); > } > +} > + > +static int dw_mci_exynos_priv_init(struct dw_mci *host) > +{ > + struct dw_mci_exynos_priv_data *priv = host->priv; > + > + dw_mci_exynos_config_smu(host); > > if (priv->ctrl_type >= DW_MCI_TYPE_EXYNOS5420) { > priv->saved_strobe_ctrl = mci_readl(host, HS400_DLINE_CTRL); > @@ -169,7 +180,7 @@ static int dw_mci_exynos_resume(struct device *dev) > { > struct dw_mci *host = dev_get_drvdata(dev); > > - dw_mci_exynos_priv_init(host); > + dw_mci_exynos_config_smu(host); > return dw_mci_resume(host); > } > > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c index 8790f2a..0e989eb 100644 --- a/drivers/mmc/host/dw_mmc-exynos.c +++ b/drivers/mmc/host/dw_mmc-exynos.c @@ -91,10 +91,14 @@ static inline u8 dw_mci_exynos_get_ciu_div(struct dw_mci *host) return SDMMC_CLKSEL_GET_DIV(mci_readl(host, CLKSEL)) + 1; } -static int dw_mci_exynos_priv_init(struct dw_mci *host) +static void dw_mci_exynos_config_smu(struct dw_mci *host) { struct dw_mci_exynos_priv_data *priv = host->priv; + /* + * If Exynos is provided the Security management, + * set for non-ecryption mode at this time. + */ if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS5420_SMU || priv->ctrl_type == DW_MCI_TYPE_EXYNOS7_SMU) { mci_writel(host, MPSBEGIN0, 0); @@ -104,6 +108,13 @@ static int dw_mci_exynos_priv_init(struct dw_mci *host) SDMMC_MPSCTRL_VALID | SDMMC_MPSCTRL_NON_SECURE_WRITE_BIT); } +} + +static int dw_mci_exynos_priv_init(struct dw_mci *host) +{ + struct dw_mci_exynos_priv_data *priv = host->priv; + + dw_mci_exynos_config_smu(host); if (priv->ctrl_type >= DW_MCI_TYPE_EXYNOS5420) { priv->saved_strobe_ctrl = mci_readl(host, HS400_DLINE_CTRL); @@ -169,7 +180,7 @@ static int dw_mci_exynos_resume(struct device *dev) { struct dw_mci *host = dev_get_drvdata(dev); - dw_mci_exynos_priv_init(host); + dw_mci_exynos_config_smu(host); return dw_mci_resume(host); }
Some of Exynos has the Security management Unit(SMU). This patch adds the function for controlling SMU. In future, if exynos needs to control SMU, it can be implemented in "config_smu" function, not "init" function. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> --- drivers/mmc/host/dw_mmc-exynos.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-)