1 files changed, 68 insertions, 0 deletions
diff --git a/include/asm-arm/arch-orion5x/io.h b/include/asm-arm/arch-orion5x/io.h
new file mode 100644
index 000000000000..5148ab7ad1f8
--- /dev/null
+++ b/include/asm-arm/arch-orion5x/io.h
@@ -0,0 +1,68 @@
+/*
+ * include/asm-arm/arch-orion5x/io.h
+ *
+ * Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_IO_H
+#define __ASM_ARCH_IO_H
+
+#include "orion5x.h"
+
+#define IO_SPACE_LIMIT		0xffffffff
+#define IO_SPACE_REMAP		ORION5X_PCI_SYS_IO_BASE
+
+static inline void __iomem *
+__arch_ioremap(unsigned long paddr, size_t size, unsigned int mtype)
+{
+	void __iomem *retval;
+
+	if (mtype == MT_DEVICE && size && paddr >= ORION5X_REGS_PHYS_BASE &&
+	    paddr + size <= ORION5X_REGS_PHYS_BASE + ORION5X_REGS_SIZE) {
+		retval = (void __iomem *)ORION5X_REGS_VIRT_BASE +
+				(paddr - ORION5X_REGS_PHYS_BASE);
+	} else {
+		retval = __arm_ioremap(paddr, size, mtype);
+	}
+
+	return retval;
+}
+
+static inline void
+__arch_iounmap(void __iomem *addr)
+{
+	if (addr < (void __iomem *)ORION5X_REGS_VIRT_BASE ||
+	    addr >= (void __iomem *)(ORION5X_REGS_VIRT_BASE + ORION5X_REGS_SIZE))
+		__iounmap(addr);
+}
+
+static inline void __iomem *__io(unsigned long addr)
+{
+	return (void __iomem *)addr;
+}
+
+#define __arch_ioremap(p, s, m)	__arch_ioremap(p, s, m)
+#define __arch_iounmap(a)	__arch_iounmap(a)
+#define __io(a)			__io(a)
+#define __mem_pci(a)		(a)
+
+
+/*****************************************************************************
+ * Helpers to access Orion registers
+ ****************************************************************************/
+#define orion5x_read(r)		__raw_readl(r)
+#define orion5x_write(r, val)	__raw_writel(val, r)
+
+/*
+ * These are not preempt-safe.  Locks, if needed, must be taken
+ * care of by the caller.
+ */
+#define orion5x_setbits(r, mask)	orion5x_write((r), orion5x_read(r) | (mask))
+#define orion5x_clrbits(r, mask)	orion5x_write((r), orion5x_read(r) & ~(mask))
+
+
+#endif