[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>
diff --git a/include/asm-avr32/unistd.h b/include/asm-avr32/unistd.h
new file mode 100644
index 0000000..1f528f9
--- /dev/null
+++ b/include/asm-avr32/unistd.h
@@ -0,0 +1,387 @@
+/*
+ * 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_UNISTD_H
+#define __ASM_AVR32_UNISTD_H
+
+/*
+ * This file contains the system call numbers.
+ */
+
+#define __NR_restart_syscall 0
+#define __NR_exit 1
+#define __NR_fork 2
+#define __NR_read 3
+#define __NR_write 4
+#define __NR_open 5
+#define __NR_close 6
+#define __NR_umask 7
+#define __NR_creat 8
+#define __NR_link 9
+#define __NR_unlink 10
+#define __NR_execve 11
+#define __NR_chdir 12
+#define __NR_time 13
+#define __NR_mknod 14
+#define __NR_chmod 15
+#define __NR_chown 16
+#define __NR_lchown 17
+#define __NR_lseek 18
+#define __NR__llseek 19
+#define __NR_getpid 20
+#define __NR_mount 21
+#define __NR_umount2 22
+#define __NR_setuid 23
+#define __NR_getuid 24
+#define __NR_stime 25
+#define __NR_ptrace 26
+#define __NR_alarm 27
+#define __NR_pause 28
+#define __NR_utime 29
+#define __NR_stat 30
+#define __NR_fstat 31
+#define __NR_lstat 32
+#define __NR_access 33
+#define __NR_chroot 34
+#define __NR_sync 35
+#define __NR_fsync 36
+#define __NR_kill 37
+#define __NR_rename 38
+#define __NR_mkdir 39
+#define __NR_rmdir 40
+#define __NR_dup 41
+#define __NR_pipe 42
+#define __NR_times 43
+#define __NR_clone 44
+#define __NR_brk 45
+#define __NR_setgid 46
+#define __NR_getgid 47
+#define __NR_getcwd 48
+#define __NR_geteuid 49
+#define __NR_getegid 50
+#define __NR_acct 51
+#define __NR_setfsuid 52
+#define __NR_setfsgid 53
+#define __NR_ioctl 54
+#define __NR_fcntl 55
+#define __NR_setpgid 56
+#define __NR_mremap 57
+#define __NR_setresuid 58
+#define __NR_getresuid 59
+#define __NR_setreuid 60
+#define __NR_setregid 61
+#define __NR_ustat 62
+#define __NR_dup2 63
+#define __NR_getppid 64
+#define __NR_getpgrp 65
+#define __NR_setsid 66
+#define __NR_rt_sigaction 67
+#define __NR_rt_sigreturn 68
+#define __NR_rt_sigprocmask 69
+#define __NR_rt_sigpending 70
+#define __NR_rt_sigtimedwait 71
+#define __NR_rt_sigqueueinfo 72
+#define __NR_rt_sigsuspend 73
+#define __NR_sethostname 74
+#define __NR_setrlimit 75
+#define __NR_getrlimit 76 /* SuS compliant getrlimit */
+#define __NR_getrusage 77
+#define __NR_gettimeofday 78
+#define __NR_settimeofday 79
+#define __NR_getgroups 80
+#define __NR_setgroups 81
+#define __NR_select 82
+#define __NR_symlink 83
+#define __NR_fchdir 84
+#define __NR_readlink 85
+#define __NR_pread 86
+#define __NR_pwrite 87
+#define __NR_swapon 88
+#define __NR_reboot 89
+#define __NR_mmap2 90
+#define __NR_munmap 91
+#define __NR_truncate 92
+#define __NR_ftruncate 93
+#define __NR_fchmod 94
+#define __NR_fchown 95
+#define __NR_getpriority 96
+#define __NR_setpriority 97
+#define __NR_wait4 98
+#define __NR_statfs 99
+#define __NR_fstatfs 100
+#define __NR_vhangup 101
+#define __NR_sigaltstack 102
+#define __NR_syslog 103
+#define __NR_setitimer 104
+#define __NR_getitimer 105
+#define __NR_swapoff 106
+#define __NR_sysinfo 107
+#define __NR_ipc 108
+#define __NR_sendfile 109
+#define __NR_setdomainname 110
+#define __NR_uname 111
+#define __NR_adjtimex 112
+#define __NR_mprotect 113
+#define __NR_vfork 114
+#define __NR_init_module 115
+#define __NR_delete_module 116
+#define __NR_quotactl 117
+#define __NR_getpgid 118
+#define __NR_bdflush 119
+#define __NR_sysfs 120
+#define __NR_personality 121
+#define __NR_afs_syscall 122 /* Syscall for Andrew File System */
+#define __NR_getdents 123
+#define __NR_flock 124
+#define __NR_msync 125
+#define __NR_readv 126
+#define __NR_writev 127
+#define __NR_getsid 128
+#define __NR_fdatasync 129
+#define __NR__sysctl 130
+#define __NR_mlock 131
+#define __NR_munlock 132
+#define __NR_mlockall 133
+#define __NR_munlockall 134
+#define __NR_sched_setparam 135
+#define __NR_sched_getparam 136
+#define __NR_sched_setscheduler 137
+#define __NR_sched_getscheduler 138
+#define __NR_sched_yield 139
+#define __NR_sched_get_priority_max 140
+#define __NR_sched_get_priority_min 141
+#define __NR_sched_rr_get_interval 142
+#define __NR_nanosleep 143
+#define __NR_poll 144
+#define __NR_nfsservctl 145
+#define __NR_setresgid 146
+#define __NR_getresgid 147
+#define __NR_prctl 148
+#define __NR_socket 149
+#define __NR_bind 150
+#define __NR_connect 151
+#define __NR_listen 152
+#define __NR_accept 153
+#define __NR_getsockname 154
+#define __NR_getpeername 155
+#define __NR_socketpair 156
+#define __NR_send 157
+#define __NR_recv 158
+#define __NR_sendto 159
+#define __NR_recvfrom 160
+#define __NR_shutdown 161
+#define __NR_setsockopt 162
+#define __NR_getsockopt 163
+#define __NR_sendmsg 164
+#define __NR_recvmsg 165
+#define __NR_truncate64 166
+#define __NR_ftruncate64 167
+#define __NR_stat64 168
+#define __NR_lstat64 169
+#define __NR_fstat64 170
+#define __NR_pivot_root 171
+#define __NR_mincore 172
+#define __NR_madvise 173
+#define __NR_getdents64 174
+#define __NR_fcntl64 175
+#define __NR_gettid 176
+#define __NR_readahead 177
+#define __NR_setxattr 178
+#define __NR_lsetxattr 179
+#define __NR_fsetxattr 180
+#define __NR_getxattr 181
+#define __NR_lgetxattr 182
+#define __NR_fgetxattr 183
+#define __NR_listxattr 184
+#define __NR_llistxattr 185
+#define __NR_flistxattr 186
+#define __NR_removexattr 187
+#define __NR_lremovexattr 188
+#define __NR_fremovexattr 189
+#define __NR_tkill 190
+#define __NR_sendfile64 191
+#define __NR_futex 192
+#define __NR_sched_setaffinity 193
+#define __NR_sched_getaffinity 194
+#define __NR_capget 195
+#define __NR_capset 196
+#define __NR_io_setup 197
+#define __NR_io_destroy 198
+#define __NR_io_getevents 199
+#define __NR_io_submit 200
+#define __NR_io_cancel 201
+#define __NR_fadvise64 202
+#define __NR_exit_group 203
+#define __NR_lookup_dcookie 204
+#define __NR_epoll_create 205
+#define __NR_epoll_ctl 206
+#define __NR_epoll_wait 207
+#define __NR_remap_file_pages 208
+#define __NR_set_tid_address 209
+
+#define __NR_timer_create 210
+#define __NR_timer_settime 211
+#define __NR_timer_gettime 212
+#define __NR_timer_getoverrun 213
+#define __NR_timer_delete 214
+#define __NR_clock_settime 215
+#define __NR_clock_gettime 216
+#define __NR_clock_getres 217
+#define __NR_clock_nanosleep 218
+#define __NR_statfs64 219
+#define __NR_fstatfs64 220
+#define __NR_tgkill 221
+ /* 222 reserved for tux */
+#define __NR_utimes 223
+#define __NR_fadvise64_64 224
+
+#define __NR_cacheflush 225
+
+#define __NR_vserver 226
+#define __NR_mq_open 227
+#define __NR_mq_unlink 228
+#define __NR_mq_timedsend 229
+#define __NR_mq_timedreceive 230
+#define __NR_mq_notify 231
+#define __NR_mq_getsetattr 232
+#define __NR_kexec_load 233
+#define __NR_waitid 234
+#define __NR_add_key 235
+#define __NR_request_key 236
+#define __NR_keyctl 237
+#define __NR_ioprio_set 238
+#define __NR_ioprio_get 239
+#define __NR_inotify_init 240
+#define __NR_inotify_add_watch 241
+#define __NR_inotify_rm_watch 242
+#define __NR_openat 243
+#define __NR_mkdirat 244
+#define __NR_mknodat 245
+#define __NR_fchownat 246
+#define __NR_futimesat 247
+#define __NR_fstatat64 248
+#define __NR_unlinkat 249
+#define __NR_renameat 250
+#define __NR_linkat 251
+#define __NR_symlinkat 252
+#define __NR_readlinkat 253
+#define __NR_fchmodat 254
+#define __NR_faccessat 255
+#define __NR_pselect6 256
+#define __NR_ppoll 257
+#define __NR_unshare 258
+#define __NR_set_robust_list 259
+#define __NR_get_robust_list 260
+#define __NR_splice 261
+#define __NR_sync_file_range 262
+#define __NR_tee 263
+#define __NR_vmsplice 264
+
+#define NR_syscalls 265
+
+
+/*
+ * AVR32 calling convention for system calls:
+ * - System call number in r8
+ * - Parameters in r12 and downwards to r9 as well as r6 and r5.
+ * - Return value in r12
+ */
+
+/*
+ * user-visible error numbers are in the range -1 - -124: see
+ * <asm-generic/errno.h>
+ */
+
+#define __syscall_return(type, res) do { \
+ if ((unsigned long)(res) >= (unsigned long)(-125)) { \
+ errno = -(res); \
+ res = -1; \
+ } \
+ return (type) (res); \
+ } while (0)
+
+#ifdef __KERNEL__
+#define __ARCH_WANT_IPC_PARSE_VERSION
+#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SYS_ALARM
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_TIME
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_WAITPID
+#define __ARCH_WANT_SYS_FADVISE64
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
+#endif
+
+#if defined(__KERNEL_SYSCALLS__) || defined(__CHECKER__)
+
+#include <linux/types.h>
+#include <linux/linkage.h>
+#include <asm/signal.h>
+
+struct pt_regs;
+
+/*
+ * we need this inline - forking from kernel space will result
+ * in NO COPY ON WRITE (!!!), until an execve is executed. This
+ * is no problem, but for the stack. This is handled by not letting
+ * main() use the stack at all after fork(). Thus, no function
+ * calls - which means inline code for fork too, as otherwise we
+ * would use the stack upon exit from 'fork()'.
+ *
+ * Actually only pause and fork are needed inline, so that there
+ * won't be any messing with the stack from main(), but we define
+ * some others too.
+ */
+static inline int execve(const char *file, char **argv, char **envp)
+{
+ register long scno asm("r8") = __NR_execve;
+ register long sc1 asm("r12") = (long)file;
+ register long sc2 asm("r11") = (long)argv;
+ register long sc3 asm("r10") = (long)envp;
+ int res;
+
+ asm volatile("scall"
+ : "=r"(sc1)
+ : "r"(scno), "0"(sc1), "r"(sc2), "r"(sc3)
+ : "lr", "memory");
+ res = sc1;
+ __syscall_return(int, res);
+}
+
+asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
+asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
+ struct pt_regs *regs);
+asmlinkage int sys_rt_sigreturn(struct pt_regs *regs);
+asmlinkage int sys_pipe(unsigned long __user *filedes);
+asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, off_t offset);
+asmlinkage int sys_cacheflush(int operation, void __user *addr, size_t len);
+asmlinkage int sys_fork(struct pt_regs *regs);
+asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
+ unsigned long parent_tidptr,
+ unsigned long child_tidptr, struct pt_regs *regs);
+asmlinkage int sys_vfork(struct pt_regs *regs);
+asmlinkage int sys_execve(char __user *ufilename, char __user *__user *uargv,
+ char __user *__user *uenvp, struct pt_regs *regs);
+
+#endif
+
+/*
+ * "Conditional" syscalls
+ *
+ * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
+ * but it doesn't work on all toolchains, so we just do it by hand
+ */
+#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
+
+#endif /* __ASM_AVR32_UNISTD_H */