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authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/arch/mips/mach-octeon/include/mangle-port.h
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/arch/mips/mach-octeon/include/mangle-port.h')
-rw-r--r--roms/u-boot/arch/mips/mach-octeon/include/mangle-port.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/roms/u-boot/arch/mips/mach-octeon/include/mangle-port.h b/roms/u-boot/arch/mips/mach-octeon/include/mangle-port.h
new file mode 100644
index 000000000..7e95dcef5
--- /dev/null
+++ b/roms/u-boot/arch/mips/mach-octeon/include/mangle-port.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2003, 2004 Ralf Baechle
+ */
+
+#ifndef __ASM_MACH_GENERIC_MANGLE_PORT_H
+#define __ASM_MACH_GENERIC_MANGLE_PORT_H
+
+#include <asm/byteorder.h>
+
+#ifdef __BIG_ENDIAN
+
+static inline bool __should_swizzle_bits(volatile void *a)
+{
+ extern const bool octeon_should_swizzle_table[];
+ u64 did = ((u64)(uintptr_t)a >> 40) & 0xff;
+
+ return octeon_should_swizzle_table[did];
+}
+
+# define __swizzle_addr_b(port) (port)
+# define __swizzle_addr_w(port) (port)
+# define __swizzle_addr_l(port) (port)
+# define __swizzle_addr_q(port) (port)
+
+#else /* __LITTLE_ENDIAN */
+
+#define __should_swizzle_bits(a) false
+
+static inline bool __should_swizzle_addr(u64 p)
+{
+ /* boot bus? */
+ return ((p >> 40) & 0xff) == 0;
+}
+
+# define __swizzle_addr_b(port) \
+ (__should_swizzle_addr(port) ? (port) ^ 7 : (port))
+# define __swizzle_addr_w(port) \
+ (__should_swizzle_addr(port) ? (port) ^ 6 : (port))
+# define __swizzle_addr_l(port) \
+ (__should_swizzle_addr(port) ? (port) ^ 4 : (port))
+# define __swizzle_addr_q(port) (port)
+
+#endif /* __BIG_ENDIAN */
+
+
+# define ioswabb(a, x) (x)
+# define __mem_ioswabb(a, x) (x)
+# define ioswabw(a, x) (__should_swizzle_bits(a) ? le16_to_cpu(x) : x)
+# define __mem_ioswabw(a, x) (x)
+# define ioswabl(a, x) (__should_swizzle_bits(a) ? le32_to_cpu(x) : x)
+# define __mem_ioswabl(a, x) (x)
+# define ioswabq(a, x) (__should_swizzle_bits(a) ? le64_to_cpu(x) : x)
+# define __mem_ioswabq(a, x) (x)
+
+#endif /* __ASM_MACH_GENERIC_MANGLE_PORT_H */