From: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Date: Fri, 29 May 2015 09:17:16 +0000 (+0530)
Subject: usb: xhci: exynos: Remove common dwc3 drv functions calls
X-Git-Tag: v2015.10-rc1~70^2~25
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=552d60cc222f649b762b3adb9b5f1d681ccd062a;p=oweals%2Fu-boot.git

usb: xhci: exynos: Remove common dwc3 drv functions calls

Remove all redundant dwc3 driver function calls that
are defined by dwc3 driver

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
---

diff --git a/drivers/usb/host/xhci-exynos5.c b/drivers/usb/host/xhci-exynos5.c
index a27a79632b..251885b28b 100644
--- a/drivers/usb/host/xhci-exynos5.c
+++ b/drivers/usb/host/xhci-exynos5.c
@@ -179,84 +179,6 @@ static void exynos5_usb3_phy_exit(struct exynos_usb3_phy *phy)
 	set_usbdrd_phy_ctrl(POWER_USB_DRD_PHY_CTRL_DISABLE);
 }
 
-static void dwc3_set_mode(struct dwc3 *dwc3_reg, u32 mode)
-{
-	clrsetbits_le32(&dwc3_reg->g_ctl,
-			DWC3_GCTL_PRTCAPDIR(DWC3_GCTL_PRTCAP_OTG),
-			DWC3_GCTL_PRTCAPDIR(mode));
-}
-
-static void dwc3_core_soft_reset(struct dwc3 *dwc3_reg)
-{
-	/* Before Resetting PHY, put Core in Reset */
-	setbits_le32(&dwc3_reg->g_ctl,
-			DWC3_GCTL_CORESOFTRESET);
-
-	/* Assert USB3 PHY reset */
-	setbits_le32(&dwc3_reg->g_usb3pipectl[0],
-			DWC3_GUSB3PIPECTL_PHYSOFTRST);
-
-	/* Assert USB2 PHY reset */
-	setbits_le32(&dwc3_reg->g_usb2phycfg,
-			DWC3_GUSB2PHYCFG_PHYSOFTRST);
-
-	mdelay(100);
-
-	/* Clear USB3 PHY reset */
-	clrbits_le32(&dwc3_reg->g_usb3pipectl[0],
-			DWC3_GUSB3PIPECTL_PHYSOFTRST);
-
-	/* Clear USB2 PHY reset */
-	clrbits_le32(&dwc3_reg->g_usb2phycfg,
-			DWC3_GUSB2PHYCFG_PHYSOFTRST);
-
-	/* After PHYs are stable we can take Core out of reset state */
-	clrbits_le32(&dwc3_reg->g_ctl,
-			DWC3_GCTL_CORESOFTRESET);
-}
-
-static int dwc3_core_init(struct dwc3 *dwc3_reg)
-{
-	u32 reg;
-	u32 revision;
-	unsigned int dwc3_hwparams1;
-
-	revision = readl(&dwc3_reg->g_snpsid);
-	/* This should read as U3 followed by revision number */
-	if ((revision & DWC3_GSNPSID_MASK) != 0x55330000) {
-		puts("this is not a DesignWare USB3 DRD Core\n");
-		return -EINVAL;
-	}
-
-	dwc3_core_soft_reset(dwc3_reg);
-
-	dwc3_hwparams1 = readl(&dwc3_reg->g_hwparams1);
-
-	reg = readl(&dwc3_reg->g_ctl);
-	reg &= ~DWC3_GCTL_SCALEDOWN_MASK;
-	reg &= ~DWC3_GCTL_DISSCRAMBLE;
-	switch (DWC3_GHWPARAMS1_EN_PWROPT(dwc3_hwparams1)) {
-	case DWC3_GHWPARAMS1_EN_PWROPT_CLK:
-		reg &= ~DWC3_GCTL_DSBLCLKGTNG;
-		break;
-	default:
-		debug("No power optimization available\n");
-	}
-
-	/*
-	 * WORKAROUND: DWC3 revisions <1.90a have a bug
-	 * where the device can fail to connect at SuperSpeed
-	 * and falls back to high-speed mode which causes
-	 * the device to enter a Connect/Disconnect loop
-	 */
-	if ((revision & DWC3_REVISION_MASK) < 0x190a)
-		reg |= DWC3_GCTL_U2RSTECN;
-
-	writel(reg, &dwc3_reg->g_ctl);
-
-	return 0;
-}
-
 static int exynos_xhci_core_init(struct exynos_xhci *exynos)
 {
 	int ret;
diff --git a/include/configs/exynos5-common.h b/include/configs/exynos5-common.h
index 5476248d88..e04dec7411 100644
--- a/include/configs/exynos5-common.h
+++ b/include/configs/exynos5-common.h
@@ -182,6 +182,7 @@
 /* USB */
 #define CONFIG_CMD_USB
 #define CONFIG_USB_STORAGE
+#define CONFIG_USB_XHCI_DWC3
 #define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS	3
 #define CONFIG_SYS_USB_XHCI_MAX_ROOT_PORTS	2