From b57557d26ee3f541d9c48797e73c730ce06730ae Mon Sep 17 00:00:00 2001
From: Lukasz Majewski <l.majewski@samsung.com>
Date: Thu, 12 May 2016 13:20:56 +0200
Subject: [PATCH] TPL: TM2: usb3: Use usb3 drd phy configuration from Linux
 kernel

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
---
 drivers/usb/dwc3/samsung_usb_phy.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/drivers/usb/dwc3/samsung_usb_phy.c b/drivers/usb/dwc3/samsung_usb_phy.c
index 6770614..7f4a3a7 100644
--- a/drivers/usb/dwc3/samsung_usb_phy.c
+++ b/drivers/usb/dwc3/samsung_usb_phy.c
@@ -8,11 +8,15 @@
  */
 
 #include <common.h>
+#ifdef CONFIG_TPL_TM2
+#include <asm/io.h>
+#endif
 #include <asm/arch/power.h>
 #include <asm/arch/xhci-exynos.h>
 
 void exynos5_usb3_phy_init(struct exynos_usb3_phy *phy)
 {
+#ifndef CONFIG_TPL_TM2
 	u32 reg;
 
 	/* Reset USB 3.0 PHY */
@@ -74,4 +78,25 @@ void exynos5_usb3_phy_init(struct exynos_usb3_phy *phy)
 
 	reg &= ~PHYCLKRST_PORTRESET;
 	writel(reg, &phy->phy_clk_rst);
+#else
+	void *base = phy;
+	/* copied from Linux kernel register dump */
+	writel(0x0, base + 0x14);
+	writel(0x0, base + 0x34);
+	writel(0x8000040, base + 0x4);
+	writel(0x24d466e4, base + 0x1c);
+	writel(0x4, base + 0x30);
+	writel(0x24d466e4, base + 0x1c);
+	writel(0x3fff81c, base + 0x20);
+	writel(0x40, base + 0x8);
+	writel(0x0, base + 0x28);
+	writel(0xc41805bf, base + 0x10);
+	udelay(10);
+	writel(0xc41805bd, base + 0x10);
+	writel(0x3fff81c, base + 0x20);
+	writel(0x0, base + 0x28);
+	writel(0xc41b40bf, base + 0x10);
+	udelay(10);
+	writel(0xc41b40bd, base + 0x10);
+#endif /* CONFIG_TPL_TM2 */
 }
-- 
2.7.4