Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / usb / dwc3 / io.h

diff --git a/kernel/drivers/usb/dwc3/io.h b/kernel/drivers/usb/dwc3/io.h
new file mode 100644 (file)
index 0000000..6a79c8e
--- /dev/null
+++ b/kernel/drivers/usb/dwc3/io.h
@@ -0,0 +1,70 @@
+/**
+ * io.h - DesignWare USB3 DRD IO Header
+ *
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Authors: Felipe Balbi <balbi@ti.com>,
+ *         Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2  of
+ * the License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __DRIVERS_USB_DWC3_IO_H
+#define __DRIVERS_USB_DWC3_IO_H
+
+#include <linux/io.h>
+#include "trace.h"
+#include "debug.h"
+#include "core.h"
+
+static inline u32 dwc3_readl(void __iomem *base, u32 offset)
+{
+       u32 offs = offset - DWC3_GLOBALS_REGS_START;
+       u32 value;
+
+       /*
+        * We requested the mem region starting from the Globals address
+        * space, see dwc3_probe in core.c.
+        * However, the offsets are given starting from xHCI address space.
+        */
+       value = readl(base + offs);
+
+       /*
+        * When tracing we want to make it easy to find the correct address on
+        * documentation, so we revert it back to the proper addresses, the
+        * same way they are described on SNPS documentation
+        */
+       dwc3_trace(trace_dwc3_readl, "addr %p value %08x",
+                       base - DWC3_GLOBALS_REGS_START + offset, value);
+
+       return value;
+}
+
+static inline void dwc3_writel(void __iomem *base, u32 offset, u32 value)
+{
+       u32 offs = offset - DWC3_GLOBALS_REGS_START;
+
+       /*
+        * We requested the mem region starting from the Globals address
+        * space, see dwc3_probe in core.c.
+        * However, the offsets are given starting from xHCI address space.
+        */
+       writel(value, base + offs);
+
+       /*
+        * When tracing we want to make it easy to find the correct address on
+        * documentation, so we revert it back to the proper addresses, the
+        * same way they are described on SNPS documentation
+        */
+       dwc3_trace(trace_dwc3_writel, "addr %p value %08x",
+                       base - DWC3_GLOBALS_REGS_START + offset, value);
+}
+
+#endif /* __DRIVERS_USB_DWC3_IO_H */