1 files changed, 29 insertions, 0 deletions
diff --git a/arch/x86/cpu/ivybridge/usb_ehci.c b/arch/x86/cpu/ivybridge/usb_ehci.c
new file mode 100644
index 0000000000..291c971a2f
--- /dev/null
+++ b/arch/x86/cpu/ivybridge/usb_ehci.c
@@ -0,0 +1,29 @@
+/*
+ * From Coreboot
+ * Copyright (C) 2008-2009 coresystems GmbH
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/pci.h>
+#include <asm/arch/pch.h>
+
+void bd82x6x_usb_ehci_init(pci_dev_t dev)
+{
+	u32 reg32;
+
+	/* Disable Wake on Disconnect in RMH */
+	reg32 = readl(RCB_REG(0x35b0));
+	reg32 |= 0x22;
+	writel(reg32, RCB_REG(0x35b0));
+
+	debug("EHCI: Setting up controller.. ");
+	reg32 = pci_read_config32(dev, PCI_COMMAND);
+	reg32 |= PCI_COMMAND_MASTER;
+	/* reg32 |= PCI_COMMAND_SERR; */
+	pci_write_config32(dev, PCI_COMMAND, reg32);
+
+	debug("done.\n");
+}