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Diffstat (limited to 'arch/mips/include/asm/mach-tx49xx/ioremap.h')
-rw-r--r--arch/mips/include/asm/mach-tx49xx/ioremap.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-tx49xx/ioremap.h b/arch/mips/include/asm/mach-tx49xx/ioremap.h
new file mode 100644
index 00000000000..1e7beae7222
--- /dev/null
+++ b/arch/mips/include/asm/mach-tx49xx/ioremap.h
@@ -0,0 +1,43 @@
+/*
+ * include/asm-mips/mach-tx49xx/ioremap.h
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#ifndef __ASM_MACH_TX49XX_IOREMAP_H
+#define __ASM_MACH_TX49XX_IOREMAP_H
+
+#include <linux/types.h>
+
+/*
+ * Allow physical addresses to be fixed up to help peripherals located
+ * outside the low 32-bit range -- generic pass-through version.
+ */
+static inline phys_t fixup_bigphys_addr(phys_t phys_addr, phys_t size)
+{
+ return phys_addr;
+}
+
+static inline void __iomem *plat_ioremap(phys_t offset, unsigned long size,
+ unsigned long flags)
+{
+#ifdef CONFIG_64BIT
+#define TXX9_DIRECTMAP_BASE 0xfff000000ul
+#else
+#define TXX9_DIRECTMAP_BASE 0xff000000ul
+#endif
+ if (offset >= TXX9_DIRECTMAP_BASE &&
+ offset < TXX9_DIRECTMAP_BASE + 0x400000)
+ return (void __iomem *)(unsigned long)(int)offset;
+ return NULL;
+}
+
+static inline int plat_iounmap(const volatile void __iomem *addr)
+{
+ return (unsigned long)addr >=
+ (unsigned long)(int)(TXX9_DIRECTMAP_BASE & 0xffffffff);
+}
+
+#endif /* __ASM_MACH_TX49XX_IOREMAP_H */