[PATCH] avr32 architecture

This adds support for the Atmel AVR32 architecture as well as the AT32AP7000
CPU and the AT32STK1000 development board.

AVR32 is a new high-performance 32-bit RISC microprocessor core, designed for
cost-sensitive embedded applications, with particular emphasis on low power
consumption and high code density.  The AVR32 architecture is not binary
compatible with earlier 8-bit AVR architectures.

The AVR32 architecture, including the instruction set, is described by the
AVR32 Architecture Manual, available from

http://www.atmel.com/dyn/resources/prod_documents/doc32000.pdf

The Atmel AT32AP7000 is the first CPU implementing the AVR32 architecture.  It
features a 7-stage pipeline, 16KB instruction and data caches and a full
Memory Management Unit.  It also comes with a large set of integrated
peripherals, many of which are shared with the AT91 ARM-based controllers from
Atmel.

Full data sheet is available from

http://www.atmel.com/dyn/resources/prod_documents/doc32003.pdf

while the CPU core implementation including caches and MMU is documented by
the AVR32 AP Technical Reference, available from

http://www.atmel.com/dyn/resources/prod_documents/doc32001.pdf

Information about the AT32STK1000 development board can be found at

http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3918

including a BSP CD image with an earlier version of this patch, development
tools (binaries and source/patches) and a root filesystem image suitable for
booting from SD card.

Alternatively, there's a preliminary "getting started" guide available at
http://avr32linux.org/twiki/bin/view/Main/GettingStarted which provides links
to the sources and patches you will need in order to set up a cross-compiling
environment for avr32-linux.

This patch, as well as the other patches included with the BSP and the
toolchain patches, is actively supported by Atmel Corporation.

[dmccr@us.ibm.com: Fix more pxx_page macro locations]
[bunk@stusta.de: fix `make defconfig']
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Dave McCracken <dmccr@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 129 insertions, 0 deletions

diff --git a/include/asm-avr32/posix_types.h b/include/asm-avr32/posix_types.h
new file mode 100644
index 000000000000..2831b039b349
--- /dev/null
+++ b/include/asm-avr32/posix_types.h
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_AVR32_POSIX_TYPES_H
+#define __ASM_AVR32_POSIX_TYPES_H
+
+/*
+ * This file is generally used by user-level software, so you need to
+ * be a little careful about namespace pollution etc.  Also, we cannot
+ * assume GCC is being used.
+ */
+
+typedef unsigned long   __kernel_ino_t;
+typedef unsigned short  __kernel_mode_t;
+typedef unsigned short  __kernel_nlink_t;
+typedef long            __kernel_off_t;
+typedef int             __kernel_pid_t;
+typedef unsigned short  __kernel_ipc_pid_t;
+typedef unsigned int	__kernel_uid_t;
+typedef unsigned int	__kernel_gid_t;
+typedef unsigned long	__kernel_size_t;
+typedef int             __kernel_ssize_t;
+typedef int             __kernel_ptrdiff_t;
+typedef long            __kernel_time_t;
+typedef long            __kernel_suseconds_t;
+typedef long            __kernel_clock_t;
+typedef int             __kernel_timer_t;
+typedef int             __kernel_clockid_t;
+typedef int             __kernel_daddr_t;
+typedef char *          __kernel_caddr_t;
+typedef unsigned short  __kernel_uid16_t;
+typedef unsigned short  __kernel_gid16_t;
+typedef unsigned int    __kernel_uid32_t;
+typedef unsigned int    __kernel_gid32_t;
+
+typedef unsigned short  __kernel_old_uid_t;
+typedef unsigned short  __kernel_old_gid_t;
+typedef unsigned short  __kernel_old_dev_t;
+
+#ifdef __GNUC__
+typedef long long       __kernel_loff_t;
+#endif
+
+typedef struct {
+#if defined(__KERNEL__) || defined(__USE_ALL)
+    int     val[2];
+#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
+    int     __val[2];
+#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
+} __kernel_fsid_t;
+
+#if defined(__KERNEL__)
+
+#undef  __FD_SET
+static __inline__ void __FD_SET(unsigned long __fd, __kernel_fd_set *__fdsetp)
+{
+    unsigned long __tmp = __fd / __NFDBITS;
+    unsigned long __rem = __fd % __NFDBITS;
+    __fdsetp->fds_bits[__tmp] |= (1UL<<__rem);
+}
+
+#undef  __FD_CLR
+static __inline__ void __FD_CLR(unsigned long __fd, __kernel_fd_set *__fdsetp)
+{
+    unsigned long __tmp = __fd / __NFDBITS;
+    unsigned long __rem = __fd % __NFDBITS;
+    __fdsetp->fds_bits[__tmp] &= ~(1UL<<__rem);
+}
+
+
+#undef  __FD_ISSET
+static __inline__ int __FD_ISSET(unsigned long __fd, const __kernel_fd_set *__p)
+{
+    unsigned long __tmp = __fd / __NFDBITS;
+    unsigned long __rem = __fd % __NFDBITS;
+    return (__p->fds_bits[__tmp] & (1UL<<__rem)) != 0;
+}
+
+/*
+ * This will unroll the loop for the normal constant case (8 ints,
+ * for a 256-bit fd_set)
+ */
+#undef  __FD_ZERO
+static __inline__ void __FD_ZERO(__kernel_fd_set *__p)
+{
+    unsigned long *__tmp = __p->fds_bits;
+    int __i;
+
+    if (__builtin_constant_p(__FDSET_LONGS)) {
+        switch (__FDSET_LONGS) {
+            case 16:
+                __tmp[ 0] = 0; __tmp[ 1] = 0;
+                __tmp[ 2] = 0; __tmp[ 3] = 0;
+                __tmp[ 4] = 0; __tmp[ 5] = 0;
+                __tmp[ 6] = 0; __tmp[ 7] = 0;
+                __tmp[ 8] = 0; __tmp[ 9] = 0;
+                __tmp[10] = 0; __tmp[11] = 0;
+                __tmp[12] = 0; __tmp[13] = 0;
+                __tmp[14] = 0; __tmp[15] = 0;
+                return;
+
+            case 8:
+                __tmp[ 0] = 0; __tmp[ 1] = 0;
+                __tmp[ 2] = 0; __tmp[ 3] = 0;
+                __tmp[ 4] = 0; __tmp[ 5] = 0;
+                __tmp[ 6] = 0; __tmp[ 7] = 0;
+                return;
+
+            case 4:
+                __tmp[ 0] = 0; __tmp[ 1] = 0;
+                __tmp[ 2] = 0; __tmp[ 3] = 0;
+                return;
+        }
+    }
+    __i = __FDSET_LONGS;
+    while (__i) {
+        __i--;
+        *__tmp = 0;
+        __tmp++;
+    }
+}
+
+#endif /* defined(__KERNEL__) */
+
+#endif /* __ASM_AVR32_POSIX_TYPES_H */