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Diffstat (limited to 'util/romcc/tests/simple_test54.c')
-rw-r--r--util/romcc/tests/simple_test54.c771
1 files changed, 0 insertions, 771 deletions
diff --git a/util/romcc/tests/simple_test54.c b/util/romcc/tests/simple_test54.c
deleted file mode 100644
index b7dee66bcf..0000000000
--- a/util/romcc/tests/simple_test54.c
+++ /dev/null
@@ -1,771 +0,0 @@
-struct syscall_result {
- long val;
- int errno;
-};
-
-static struct syscall_result syscall_return(long result)
-{
- struct syscall_result res;
- if (((unsigned long)result) >= ((unsigned long)-125)) {
- res.errno = - result;
- res.val = -1;
- } else {
- res.errno = 0;
- res.val = result;
- }
- return res;
-}
-
-static struct syscall_result syscall0(unsigned long nr)
-{
- long res;
- asm volatile(
- "int $0x80"
- : "=a" (res)
- : "a" (nr));
- return syscall_return(res);
-}
-
-static struct syscall_result syscall1(unsigned long nr, unsigned long arg1)
-{
- long res;
- asm volatile(
- "int $0x80"
- : "=a" (res)
- : "a" (nr), "b" (arg1));
- return syscall_return(res);
-
-}
-
-static struct syscall_result syscall2(unsigned long nr, unsigned long arg1, unsigned long arg2)
-{
- long res;
- asm volatile(
- "int $0x80"
- : "=a" (res)
- : "a" (nr), "b" (arg1), "c" (arg2));
- return syscall_return(res);
-
-}
-
-
-static struct syscall_result syscall3(unsigned long nr, unsigned long arg1, unsigned long arg2,
- unsigned long arg3)
-{
- long res;
- asm volatile(
- "int $0x80"
- : "=a" (res)
- : "a" (nr), "b" (arg1), "c" (arg2), "d" (arg3));
- return syscall_return(res);
-
-}
-
-static struct syscall_result syscall4(unsigned long nr, unsigned long arg1, unsigned long arg2,
- unsigned long arg3, unsigned long arg4)
-{
- long res;
- asm volatile(
- "int $0x80"
- : "=a" (res)
- : "a" (nr), "b" (arg1), "c" (arg2), "d" (arg3), "S" (arg4));
- return syscall_return(res);
-
-}
-
-static struct syscall_result syscall5(unsigned long nr, unsigned long arg1, unsigned long arg2,
- unsigned long arg3, unsigned long arg4, unsigned long arg5)
-{
- long res;
- asm volatile(
- "int $0x80"
- : "=a" (res)
- : "a" (nr), "b" (arg1), "c" (arg2), "d" (arg3),
- "S" (arg4), "D" (arg5));
- return syscall_return(res);
-
-}
-
-#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_waitpid 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_lchown 16
-#define NR_break 17
-#define NR_oldstat 18
-#define NR_lseek 19
-#define NR_getpid 20
-#define NR_mount 21
-#define NR_umount 22
-#define NR_setuid 23
-#define NR_getuid 24
-#define NR_stime 25
-#define NR_ptrace 26
-#define NR_alarm 27
-#define NR_oldfstat 28
-#define NR_pause 29
-#define NR_utime 30
-#define NR_stty 31
-#define NR_gtty 32
-#define NR_access 33
-#define NR_nice 34
-#define NR_ftime 35
-#define NR_sync 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_prof 44
-#define NR_brk 45
-#define NR_setgid 46
-#define NR_getgid 47
-#define NR_signal 48
-#define NR_geteuid 49
-#define NR_getegid 50
-#define NR_acct 51
-#define NR_umount2 52
-#define NR_lock 53
-#define NR_ioctl 54
-#define NR_fcntl 55
-#define NR_mpx 56
-#define NR_setpgid 57
-#define NR_ulimit 58
-#define NR_oldolduname 59
-#define NR_umask 60
-#define NR_chroot 61
-#define NR_ustat 62
-#define NR_dup2 63
-#define NR_getppid 64
-#define NR_getpgrp 65
-#define NR_setsid 66
-#define NR_sigaction 67
-#define NR_sgetmask 68
-#define NR_ssetmask 69
-#define NR_setreuid 70
-#define NR_setregid 71
-#define NR_sigsuspend 72
-#define NR_sigpending 73
-#define NR_sethostname 74
-#define NR_setrlimit 75
-#define NR_getrlimit 76
-#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_oldlstat 84
-#define NR_readlink 85
-#define NR_uselib 86
-#define NR_swapon 87
-#define NR_reboot 88
-#define NR_readdir 89
-#define NR_mmap 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_profil 98
-#define NR_statfs 99
-#define NR_fstatfs 100
-#define NR_ioperm 101
-#define NR_socketcall 102
-#define NR_syslog 103
-#define NR_setitimer 104
-#define NR_getitimer 105
-#define NR_stat 106
-#define NR_lstat 107
-#define NR_fstat 108
-#define NR_olduname 109
-#define NR_iopl 110
-#define NR_vhangup 111
-#define NR_idle 112
-#define NR_vm86old 113
-#define NR_wait4 114
-#define NR_swapoff 115
-#define NR_sysinfo 116
-#define NR_ipc 117
-#define NR_fsync 118
-#define NR_sigreturn 119
-#define NR_clone 120
-#define NR_setdomainname 121
-#define NR_uname 122
-#define NR_modify_ldt 123
-#define NR_adjtimex 124
-#define NR_mprotect 125
-#define NR_sigprocmask 126
-#define NR_create_module 127
-#define NR_init_module 128
-#define NR_delete_module 129
-#define NR_get_kernel_syms 130
-#define NR_quotactl 131
-#define NR_getpgid 132
-#define NR_fchdir 133
-#define NR_bdflush 134
-#define NR_sysfs 135
-#define NR_personality 136
-#define NR_afs_syscall 137 /* Syscall for Andrew File System */
-#define NR_setfsuid 138
-#define NR_setfsgid 139
-#define NR__llseek 140
-#define NR_getdents 141
-#define NR__newselect 142
-#define NR_flock 143
-#define NR_msync 144
-#define NR_readv 145
-#define NR_writev 146
-#define NR_getsid 147
-#define NR_fdatasync 148
-#define NR__sysctl 149
-#define NR_mlock 150
-#define NR_munlock 151
-#define NR_mlockall 152
-#define NR_munlockall 153
-#define NR_sched_setparam 154
-#define NR_sched_getparam 155
-#define NR_sched_setscheduler 156
-#define NR_sched_getscheduler 157
-#define NR_sched_yield 158
-#define NR_sched_get_priority_max 159
-#define NR_sched_get_priority_min 160
-#define NR_sched_rr_get_interval 161
-#define NR_nanosleep 162
-#define NR_mremap 163
-#define NR_setresuid 164
-#define NR_getresuid 165
-#define NR_vm86 166
-#define NR_query_module 167
-#define NR_poll 168
-#define NR_nfsservctl 169
-#define NR_setresgid 170
-#define NR_getresgid 171
-#define NR_prctl 172
-#define NR_rt_sigreturn 173
-#define NR_rt_sigaction 174
-#define NR_rt_sigprocmask 175
-#define NR_rt_sigpending 176
-#define NR_rt_sigtimedwait 177
-#define NR_rt_sigqueueinfo 178
-#define NR_rt_sigsuspend 179
-#define NR_pread 180
-#define NR_pwrite 181
-#define NR_chown 182
-#define NR_getcwd 183
-#define NR_capget 184
-#define NR_capset 185
-#define NR_sigaltstack 186
-#define NR_sendfile 187
-#define NR_getpmsg 188 /* some people actually want streams */
-#define NR_putpmsg 189 /* some people actually want streams */
-#define NR_vfork 190
-
-typedef long ssize_t;
-typedef unsigned long size_t;
-
-/* Standard file descriptors */
-#define STDIN_FILENO 0 /* Standard input */
-#define STDOUT_FILENO 1 /* Standard output */
-#define STDERR_FILENO 2 /* Standard error output */
-
-static ssize_t write(int fd, const void *buf, size_t count)
-{
- struct syscall_result res;
- res = syscall3(NR_write, fd, (unsigned long)buf, count);
- return res.val;
-}
-
-static void _exit(int status)
-{
- struct syscall_result res;
- res = syscall1(NR_exit, status);
-}
-
-static const char *addr_of_char(unsigned char ch)
-{
- static const char byte[] = {
- 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
- 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
- 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
- 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
- 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
- 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
- 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
- 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
- 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
- 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
- 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
- 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
- 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
- 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
- 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
- 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
- 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
- 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
- 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
- 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
- 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
- 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
- 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
- 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
- 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
- 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
- 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
- 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
- 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
- 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
- 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
- };
- return byte + ch;
-}
-
-static void console_tx_byte(unsigned char ch)
-{
- write(STDOUT_FILENO, addr_of_char(ch), 1);
-}
-
-static void console_tx_nibble(unsigned nibble)
-{
- unsigned char digit;
- digit = nibble + '0';
- if (digit > '9') {
- digit += 39;
- }
- console_tx_byte(digit);
-}
-
-static void console_tx_char(unsigned char byte)
-{
- console_tx_byte(byte);
-}
-
-static void console_tx_hex8(unsigned char value)
-{
- console_tx_nibble((value >> 4U) & 0x0fU);
- console_tx_nibble(value & 0x0fU);
-}
-
-static void console_tx_hex16(unsigned short value)
-{
- console_tx_nibble((value >> 12U) & 0x0FU);
- console_tx_nibble((value >> 8U) & 0x0FU);
- console_tx_nibble((value >> 4U) & 0x0FU);
- console_tx_nibble(value & 0x0FU);
-}
-
-static void console_tx_hex32(unsigned short value)
-{
- console_tx_nibble((value >> 28U) & 0x0FU);
- console_tx_nibble((value >> 24U) & 0x0FU);
- console_tx_nibble((value >> 20U) & 0x0FU);
- console_tx_nibble((value >> 16U) & 0x0FU);
- console_tx_nibble((value >> 12U) & 0x0FU);
- console_tx_nibble((value >> 8U) & 0x0FU);
- console_tx_nibble((value >> 4U) & 0x0FU);
- console_tx_nibble(value & 0x0FU);
-}
-
-static void console_tx_string(const char *str)
-{
- unsigned char ch;
- while((ch = *str++) != '\0') {
- console_tx_byte(ch);
- }
-}
-
-static void print_emerg_char(unsigned char byte) { console_tx_char(byte); }
-static void print_emerg_hex8(unsigned char value) { console_tx_hex8(value); }
-static void print_emerg_hex16(unsigned short value){ console_tx_hex16(value); }
-static void print_emerg_hex32(unsigned int value) { console_tx_hex32(value); }
-static void print_emerg(const char *str) { console_tx_string(str); }
-
-static void print_debug_char(unsigned char byte) { console_tx_char(byte); }
-static void print_debug_hex8(unsigned char value) { console_tx_hex8(value); }
-static void print_debug_hex16(unsigned short value){ console_tx_hex16(value); }
-static void print_debug_hex32(unsigned int value) { console_tx_hex32(value); }
-static void print_debug(const char *str) { console_tx_string(str); }
-
-
-int log2(int value)
-{
- /* __builtin_bsr is a exactly equivalent to the x86 machine
- * instruction with the exception that it returns -1
- * when the value presented to it is zero.
- * Otherwise __builtin_bsr returns the zero based index of
- * the highest bit set.
- */
- return __builtin_bsr(value);
-}
-
-
-static void die(const char *str)
-{
- print_emerg(str);
- do {
- asm(" ");
- } while(1);
-
-}
-
-static int smbus_read_byte(unsigned device, unsigned address)
-{
- static const unsigned char dimm[] = {
-0x80, 0x08, 0x07, 0x0d, 0x0a, 0x02, 0x48, 0x00, 0x04, 0x60, 0x70, 0x02, 0x82, 0x08, 0x08, 0x01,
-0x0e, 0x04, 0x0c, 0x01, 0x02, 0x20, 0x00, 0x75, 0x70, 0x00, 0x00, 0x48, 0x30, 0x48, 0x2a, 0x40,
-0x80, 0x80, 0x45, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x33,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-
-0x80, 0x08, 0x07, 0x0d, 0x0a, 0x02, 0x48, 0x00, 0x04, 0x60, 0x70, 0x02, 0x82, 0x08, 0x08, 0x01,
-0x0e, 0x04, 0x0c, 0x01, 0x02, 0x20, 0x00, 0x75, 0x70, 0x00, 0x00, 0x48, 0x30, 0x48, 0x2a, 0x40,
-0x80, 0x80, 0x45, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x33,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- };
- return dimm[(device << 8) + address];
-}
-
-#define SMBUS_MEM_DEVICE_START 0x00
-#define SMBUS_MEM_DEVICE_END 0x01
-#define SMBUS_MEM_DEVICE_INC 1
-
-/* Function 2 */
-#define DRAM_CONFIG_HIGH 0x94
-#define DCH_MEMCLK_SHIFT 20
-#define DCH_MEMCLK_MASK 7
-#define DCH_MEMCLK_100MHZ 0
-#define DCH_MEMCLK_133MHZ 2
-#define DCH_MEMCLK_166MHZ 5
-#define DCH_MEMCLK_200MHZ 7
-
-/* Function 3 */
-#define NORTHBRIDGE_CAP 0xE8
-#define NBCAP_128Bit 0x0001
-#define NBCAP_MP 0x0002
-#define NBCAP_BIG_MP 0x0004
-#define NBCAP_ECC 0x0004
-#define NBCAP_CHIPKILL_ECC 0x0010
-#define NBCAP_MEMCLK_SHIFT 5
-#define NBCAP_MEMCLK_MASK 3
-#define NBCAP_MEMCLK_100MHZ 3
-#define NBCAP_MEMCLK_133MHZ 2
-#define NBCAP_MEMCLK_166MHZ 1
-#define NBCAP_MEMCLK_200MHZ 0
-#define NBCAP_MEMCTRL 0x0100
-
-typedef unsigned char uint8_t;
-typedef unsigned int uint32_t;
-
-static unsigned spd_to_dimm(unsigned device)
-{
- return (device - SMBUS_MEM_DEVICE_START);
-}
-
-static void disable_dimm(unsigned index)
-{
- print_debug("disabling dimm");
- print_debug_hex8(index);
- print_debug("\r\n");
-#if 0
- pci_write_config32(PCI_DEV(0, 0x18, 2), DRAM_CSBASE + (((index << 1)+0)<<2), 0);
- pci_write_config32(PCI_DEV(0, 0x18, 2), DRAM_CSBASE + (((index << 1)+1)<<2), 0);
-#endif
-}
-
-
-struct mem_param {
- uint8_t cycle_time;
- uint32_t dch_memclk;
-};
-
-static const struct mem_param *get_mem_param(unsigned min_cycle_time)
-{
- static const struct mem_param speed[] = {
- {
- .cycle_time = 0xa0,
- .dch_memclk = DCH_MEMCLK_100MHZ << DCH_MEMCLK_SHIFT,
- },
- {
- .cycle_time = 0x75,
- .dch_memclk = DCH_MEMCLK_133MHZ << DCH_MEMCLK_SHIFT,
- },
- {
- .cycle_time = 0x60,
- .dch_memclk = DCH_MEMCLK_166MHZ << DCH_MEMCLK_SHIFT,
- },
- {
- .cycle_time = 0x50,
- .dch_memclk = DCH_MEMCLK_200MHZ << DCH_MEMCLK_SHIFT,
- },
- {
- .cycle_time = 0x00,
- },
- };
- const struct mem_param *param;
- for(param = &speed[0]; param->cycle_time ; param++) {
- if (min_cycle_time > (param+1)->cycle_time) {
- break;
- }
- }
- if (!param->cycle_time) {
- die("min_cycle_time to low");
- }
- return param;
-}
-
-#if 1
-static void debug(int c)
-{
- print_debug_char(c);
- print_debug_char('\r');
- print_debug_char('\n');
-}
-#endif
-static const struct mem_param *spd_set_memclk(void)
-{
- /* Compute the minimum cycle time for these dimms */
- const struct mem_param *param;
- unsigned min_cycle_time, min_latency;
- unsigned device;
- uint32_t value;
-
- static const int latency_indices[] = { 26, 23, 9 };
- static const unsigned char min_cycle_times[] = {
- [NBCAP_MEMCLK_200MHZ] = 0x50, /* 5ns */
- [NBCAP_MEMCLK_166MHZ] = 0x60, /* 6ns */
- [NBCAP_MEMCLK_133MHZ] = 0x75, /* 7.5ns */
- [NBCAP_MEMCLK_100MHZ] = 0xa0, /* 10ns */
- };
-
-
-#if 0
- value = pci_read_config32(PCI_DEV(0, 0x18, 3), NORTHBRIDGE_CAP);
-#else
- value = 0x50;
-#endif
- min_cycle_time = min_cycle_times[(value >> NBCAP_MEMCLK_SHIFT) & NBCAP_MEMCLK_MASK];
- min_latency = 2;
-
-#if 1
- print_debug("min_cycle_time: ");
- print_debug_hex8(min_cycle_time);
- print_debug(" min_latency: ");
- print_debug_hex8(min_latency);
- print_debug("\r\n");
-#endif
-
- /* Compute the least latency with the fastest clock supported
- * by both the memory controller and the dimms.
- */
- for(device = SMBUS_MEM_DEVICE_START;
- device <= SMBUS_MEM_DEVICE_END;
- device += SMBUS_MEM_DEVICE_INC)
- {
- int new_cycle_time, new_latency;
- int index;
- int latencies;
- int latency;
-
- debug('A');
- /* First find the supported CAS latencies
- * Byte 18 for DDR SDRAM is interpreted:
- * bit 0 == CAS Latency = 1.0
- * bit 1 == CAS Latency = 1.5
- * bit 2 == CAS Latency = 2.0
- * bit 3 == CAS Latency = 2.5
- * bit 4 == CAS Latency = 3.0
- * bit 5 == CAS Latency = 3.5
- * bit 6 == TBD
- * bit 7 == TBD
- */
- new_cycle_time = 0xa0;
- new_latency = 5;
-
- latencies = smbus_read_byte(device, 18);
- if (latencies <= 0) continue;
-
- debug('B');
- /* Compute the lowest cas latency supported */
- latency = log2(latencies) -2;
-
- /* Loop through and find a fast clock with a low latency */
- for(index = 0; index < 3; index++, latency++) {
- int value;
- debug('C');
- if ((latency < 2) || (latency > 4) ||
- (!(latencies & (1 << latency)))) {
- continue;
- }
- debug('D');
- value = smbus_read_byte(device, latency_indices[index]);
- if (value < 0) continue;
-
- debug('E');
- /* Only increase the latency if we decreas the clock */
- if ((value >= min_cycle_time) && (value < new_cycle_time)) {
- new_cycle_time = value;
- new_latency = latency;
-#if 1
- print_debug("device: ");
- print_debug_hex8(device);
- print_debug(" new_cycle_time: ");
- print_debug_hex8(new_cycle_time);
- print_debug(" new_latency: ");
- print_debug_hex8(new_latency);
- print_debug("\r\n");
-#endif
- }
- debug('G');
- }
- debug('H');
-#if 1
- print_debug("device: ");
- print_debug_hex8(device);
- print_debug(" new_cycle_time: ");
- print_debug_hex8(new_cycle_time);
- print_debug(" new_latency: ");
- print_debug_hex8(new_latency);
- print_debug("\r\n");
-#endif
- if (new_latency > 4){
- continue;
- }
- debug('I');
- /* Does min_latency need to be increased? */
- if (new_cycle_time > min_cycle_time) {
- min_cycle_time = new_cycle_time;
- }
- /* Does min_cycle_time need to be increased? */
- if (new_latency > min_latency) {
- min_latency = new_latency;
- }
-#if 1
- print_debug("device: ");
- print_debug_hex8(device);
- print_debug(" min_cycle_time: ");
- print_debug_hex8(min_cycle_time);
- print_debug(" min_latency: ");
- print_debug_hex8(min_latency);
- print_debug("\r\n");
-#endif
- }
- /* Make a second pass through the dimms and disable
- * any that cannot support the selected memclk and cas latency.
- */
- for(device = SMBUS_MEM_DEVICE_START;
- device <= SMBUS_MEM_DEVICE_END;
- device += SMBUS_MEM_DEVICE_INC)
- {
- int latencies;
- int latency;
- int index;
- int value;
- int dimm;
- latencies = smbus_read_byte(device, 18);
- if (latencies <= 0) {
- goto dimm_err;
- }
-
- /* Compute the lowest cas latency supported */
- latency = log2(latencies) -2;
-
- /* Walk through searching for the selected latency */
- for(index = 0; index < 3; index++, latency++) {
- if (!(latencies & (1 << latency))) {
- continue;
- }
- if (latency == min_latency)
- break;
- }
- /* If I can't find the latency or my index is bad error */
- if ((latency != min_latency) || (index >= 3)) {
- goto dimm_err;
- }
-
- /* Read the min_cycle_time for this latency */
- value = smbus_read_byte(device, latency_indices[index]);
-
- /* All is good if the selected clock speed
- * is what I need or slower.
- */
- if (value <= min_cycle_time) {
- continue;
- }
- /* Otherwise I have an error, disable the dimm */
- dimm_err:
- disable_dimm(spd_to_dimm(device));
- }
-#if 1
- print_debug("min_cycle_time: ");
- print_debug_hex8(min_cycle_time);
- print_debug(" min_latency: ");
- print_debug_hex8(min_latency);
- print_debug("\r\n");
-#endif
- /* Now that I know the minimum cycle time lookup the memory parameters */
- param = get_mem_param(min_cycle_time);
-
-#if 0
- /* Update DRAM Config High with our selected memory speed */
- value = pci_read_config32(PCI_DEV(0, 0x18, 2), DRAM_CONFIG_HIGH);
- value &= ~(DCH_MEMCLK_MASK << DCH_MEMCLK_SHIFT);
- value |= param->dch_memclk;
- pci_write_config32(PCI_DEV(0, 0x18, 2), DRAM_CONFIG_HIGH, value);
-
- static const unsigned latencies[] = { 1, 5, 2 };
- /* Update DRAM Timing Low wiht our selected cas latency */
- value = pci_read_config32(PCI_DEV(0, 0x18, 2), DRAM_CONFIG_LOW);
- value &= ~7;
- value |= latencies[min_latency - 2];
- pci_write_config32(PCI_DEV(0, 0x18, 2), DRAM_CONFIG_LOW, value);
-#endif
-
- return param;
-}
-
-static void main(void)
-{
- const struct mem_param *param;
- param = spd_set_memclk();
- _exit(0);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 12:22:19 +0000