amazon: readd wrongly removed file

SVN-Revision: 19014

diff --git a/target/linux/amazon/files/include/asm-mips/mach-amazon/mangle-port.h b/target/linux/amazon/files/include/asm-mips/mach-amazon/mangle-port.h
new file mode 100644 (file)
index 0000000..af8c3e9
--- /dev/null
+++ b/target/linux/amazon/files/include/asm-mips/mach-amazon/mangle-port.h
@@ -0,0 +1,52 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003, 2004 Ralf Baechle
+ */
+#ifndef __ASM_MACH_AMAZON_MANGLE_PORT_H
+#define __ASM_MACH_AMAZON_MANGLE_PORT_H
+
+#define __swizzle_addr_b(port) (port)
+#define __swizzle_addr_w(port) ((port) ^ 2)
+#define __swizzle_addr_l(port) (port)
+#define __swizzle_addr_q(port) (port)
+
+/*
+ * Sane hardware offers swapping of PCI/ISA I/O space accesses in hardware;
+ * less sane hardware forces software to fiddle with this...
+ *
+ * Regardless, if the host bus endianness mismatches that of PCI/ISA, then
+ * you can't have the numerical value of data and byte addresses within
+ * multibyte quantities both preserved at the same time.  Hence two
+ * variations of functions: non-prefixed ones that preserve the value
+ * and prefixed ones that preserve byte addresses.  The latters are
+ * typically used for moving raw data between a peripheral and memory (cf.
+ * string I/O functions), hence the "__mem_" prefix.
+ */
+#if defined(CONFIG_SWAP_IO_SPACE)
+
+# define ioswabb(a, x)         (x)
+# define __mem_ioswabb(a, x)   (x)
+# define ioswabw(a, x)         le16_to_cpu(x)
+# define __mem_ioswabw(a, x)   (x)
+# define ioswabl(a, x)         le32_to_cpu(x)
+# define __mem_ioswabl(a, x)   (x)
+# define ioswabq(a, x)         le64_to_cpu(x)
+# define __mem_ioswabq(a, x)   (x)
+
+#else
+
+# define ioswabb(a, x)         (x)
+# define __mem_ioswabb(a, x)   (x)
+# define ioswabw(a, x)         (x)
+# define __mem_ioswabw(a, x)   cpu_to_le16(x)
+# define ioswabl(a, x)         (x)
+# define __mem_ioswabl(a, x)   cpu_to_le32(x)
+# define ioswabq(a, x)         (x)
+# define __mem_ioswabq(a, x)   cpu_to_le32(x)
+
+#endif
+
+#endif /* __ASM_MACH_AMAZON_MANGLE_PORT_H */