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authorTsiChung Liew <Tsi-Chung.Liew@freescale.com>2007-06-18 13:50:13 -0500
committerJohn Rigby <jrigby@freescale.com>2007-06-18 15:17:56 -0600
commit8e585f02f82c17cc66cd229dbf0fd3066bbbf658 (patch)
tree9483ff1f96ab9208eeac92101a5c6db855fcd2ee /include/asm-m68k/byteorder.h
parent9912121f7ed804ea58fd62f3f230b5dcfc357d88 (diff)
downloadu-boot-imx-8e585f02f82c17cc66cd229dbf0fd3066bbbf658.zip
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Added M5329AFEE and M5329BFEE Platforms
Added board/freescale/m5329evb, cpu/mcf532x, drivers/net, drivers/serial, immap_5329.h, m5329.h, mcfrtc.h, include/configs/M5329EVB.h, lib_m68k/interrupts.c, and rtc/mcfrtc.c Modified CREDITS, MAKEFILE, Makefile, README, common/cmd_bdinfo.c, common/cmd_mii.c, include/asm-m68k/byteorder.h, include/asm-m68k/fec.h, include/asm-m68k/io.h, include/asm-m68k/mcftimer.h, include/asm-m68k/mcfuart.h, include/asm-m68k/ptrace.h, include/asm-m68k/u-boot.h, lib_m68k/Makefile, lib_m68k/board.c, lib_m68k/time.c, net/eth.c and rtc/Makefile Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Diffstat (limited to 'include/asm-m68k/byteorder.h')
-rw-r--r--include/asm-m68k/byteorder.h102
1 files changed, 101 insertions, 1 deletions
diff --git a/include/asm-m68k/byteorder.h b/include/asm-m68k/byteorder.h
index ce613ac..0e2a0ed 100644
--- a/include/asm-m68k/byteorder.h
+++ b/include/asm-m68k/byteorder.h
@@ -1,7 +1,107 @@
+/*
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
#ifndef _M68K_BYTEORDER_H
#define _M68K_BYTEORDER_H
#include <asm/types.h>
+
+#ifdef __GNUC__
+#define __sw16(x) \
+ ((__u16)( \
+ (((__u16)(x) & (__u16)0x00ffU) << 8) | \
+ (((__u16)(x) & (__u16)0xff00U) >> 8) ))
+#define __sw32(x) \
+ ((__u32)( \
+ (((__u32)(x)) << 24) | \
+ (((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \
+ (((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \
+ (((__u32)(x)) >> 24) ))
+
+extern __inline__ unsigned ld_le16(const volatile unsigned short *addr)
+{
+ unsigned result = *addr;
+ return __sw16(result);
+}
+
+extern __inline__ void st_le16(volatile unsigned short *addr,
+ const unsigned val)
+{
+ *addr = __sw16(val);
+}
+
+extern __inline__ unsigned ld_le32(const volatile unsigned *addr)
+{
+ unsigned result = *addr;
+ return __sw32(result);
+}
+
+extern __inline__ void st_le32(volatile unsigned *addr, const unsigned val)
+{
+ *addr = __sw32(val);
+}
+
+#if 0
+/* alas, egcs sounds like it has a bug in this code that doesn't use the
+ inline asm correctly, and can cause file corruption. Until I hear that
+ it's fixed, I can live without the extra speed. I hope. */
+#if !(__GNUC__ >= 2 && __GNUC_MINOR__ >= 90)
+#if 0
+# define __arch_swab16(x) ld_le16(&x)
+# define __arch_swab32(x) ld_le32(&x)
+#else
+static __inline__ __attribute__ ((const))
+__u16 ___arch__swab16(__u16 value)
+{
+ return __sw16(value);
+}
+
+static __inline__ __attribute__ ((const))
+__u32 ___arch__swab32(__u32 value)
+{
+ return __sw32(value);
+}
+
+#define __arch__swab32(x) ___arch__swab32(x)
+#define __arch__swab16(x) ___arch__swab16(x)
+#endif /* 0 */
+
+#endif
+
+/* The same, but returns converted value from the location pointer by addr. */
+#define __arch__swab16p(addr) ld_le16(addr)
+#define __arch__swab32p(addr) ld_le32(addr)
+
+/* The same, but do the conversion in situ, ie. put the value back to addr. */
+#define __arch__swab16s(addr) st_le16(addr,*addr)
+#define __arch__swab32s(addr) st_le32(addr,*addr)
+#endif
+
+#endif /* __GNUC__ */
+
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
+#define __BYTEORDER_HAS_U64__
+#endif
#include <linux/byteorder/big_endian.h>
-#endif /* _M68K_BYTEORDER_H */
+#endif /* _M68K_BYTEORDER_H */