This patch adds to enable High Speed Inter Chip on Exynos4X12. Both channels are controlled by usbphy driver based on the patch series of usbphy driver submitted by Tomasz Figa.
[1] https://patchwork.kernel.org/patch/2576121 [2] https://patchwork.kernel.org/patch/2576131 [3] https://patchwork.kernel.org/patch/2576141 [4] https://patchwork.kernel.org/patch/2576151 [5] https://patchwork.kernel.org/patch/2576161 [6] https://patchwork.kernel.org/patch/2576171 Signed-off-by: Dongjin Kim <tobet...@gmail.com> Cc: Tomasz Figa <t.f...@samsung.com> Cc: Kyungmin Park <kyungmin.p...@samsung.com> --- drivers/usb/phy/phy-samsung-usb.c | 5 +++++ drivers/usb/phy/phy-samsung-usb.h | 10 ++++++++++ drivers/usb/phy/phy-samsung-usb2.c | 13 +++++++++++-- 3 files changed, 26 insertions(+), 2 deletions(-) diff --git a/drivers/usb/phy/phy-samsung-usb.c b/drivers/usb/phy/phy-samsung-usb.c index 7a1ed90..ac025ca 100644 --- a/drivers/usb/phy/phy-samsung-usb.c +++ b/drivers/usb/phy/phy-samsung-usb.c @@ -100,6 +100,11 @@ void samsung_usbphy_set_isolation_4210(struct samsung_usbphy *sphy, bool on) reg_val |= en_mask; writel(reg_val, reg); + + if (sphy->drv_data->cpu_type == TYPE_EXYNOS4X12) { + writel(reg_val, sphy->pmuregs + EXYNOS4X12_PHY_HSIC_CTRL0); + writel(reg_val, sphy->pmuregs + EXYNOS4X12_PHY_HSIC_CTRL1); + } } EXPORT_SYMBOL_GPL(samsung_usbphy_set_isolation_4210); diff --git a/drivers/usb/phy/phy-samsung-usb.h b/drivers/usb/phy/phy-samsung-usb.h index 585d12f..68771bf 100644 --- a/drivers/usb/phy/phy-samsung-usb.h +++ b/drivers/usb/phy/phy-samsung-usb.h @@ -47,6 +47,16 @@ #define RSTCON_HLINK_SWRST (0x1 << 1) #define RSTCON_SWRST (0x1 << 0) +/* EXYNOS4X12 */ +#define EXYNOS4X12_PHY_HSIC_CTRL0 (0x04) +#define EXYNOS4X12_PHY_HSIC_CTRL1 (0x08) + +#define PHYPWR_NORMAL_MASK_HSIC1 (0x7 << 12) +#define PHYPWR_NORMAL_MASK_HSIC0 (0x7 << 9) +#define PHYPWR_NORMAL_MASK_PHY1 (0x7 << 6) + +#define RSTCON_HOSTPHY_SWRST (0xf << 3) + /* EXYNOS5 */ #define EXYNOS5_PHY_HOST_CTRL0 (0x00) diff --git a/drivers/usb/phy/phy-samsung-usb2.c b/drivers/usb/phy/phy-samsung-usb2.c index 03180c0..1011c16 100644 --- a/drivers/usb/phy/phy-samsung-usb2.c +++ b/drivers/usb/phy/phy-samsung-usb2.c @@ -176,8 +176,12 @@ static void samsung_usb2phy_enable(struct samsung_usbphy *sphy) phypwr &= ~PHYPWR_NORMAL_MASK; rstcon |= RSTCON_SWRST; break; - case TYPE_EXYNOS4210: case TYPE_EXYNOS4X12: + phypwr &= ~(PHYPWR_NORMAL_MASK_HSIC0 | + PHYPWR_NORMAL_MASK_HSIC1 | + PHYPWR_NORMAL_MASK_PHY1); + rstcon |= RSTCON_HOSTPHY_SWRST; + case TYPE_EXYNOS4210: phypwr &= ~PHYPWR_NORMAL_MASK_PHY0; rstcon |= RSTCON_SWRST; default: @@ -190,6 +194,8 @@ static void samsung_usb2phy_enable(struct samsung_usbphy *sphy) /* reset all ports of PHY and Link */ writel(rstcon, regs + SAMSUNG_RSTCON); udelay(10); + if (sphy->drv_data->cpu_type == TYPE_EXYNOS4X12) + rstcon &= ~RSTCON_HOSTPHY_SWRST; rstcon &= ~RSTCON_SWRST; writel(rstcon, regs + SAMSUNG_RSTCON); } @@ -240,8 +246,11 @@ static void samsung_usb2phy_disable(struct samsung_usbphy *sphy) case TYPE_S3C64XX: phypwr |= PHYPWR_NORMAL_MASK; break; - case TYPE_EXYNOS4210: case TYPE_EXYNOS4X12: + phypwr |= (PHYPWR_NORMAL_MASK_HSIC0 | + PHYPWR_NORMAL_MASK_HSIC1 | + PHYPWR_NORMAL_MASK_PHY1); + case TYPE_EXYNOS4210: phypwr |= PHYPWR_NORMAL_MASK_PHY0; default: break; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
