diff options
Diffstat (limited to 'util/romcc/tests/simple_test61.c')
-rw-r--r-- | util/romcc/tests/simple_test61.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/util/romcc/tests/simple_test61.c b/util/romcc/tests/simple_test61.c new file mode 100644 index 0000000000..583a9db36b --- /dev/null +++ b/util/romcc/tests/simple_test61.c @@ -0,0 +1,26 @@ +static void spd_set_nbxcfg(void) +{ + /* + * Effects: Uses serial presence detect to set the + * ECC support flags in the NBXCFG register + * FIXME: Check for illegal/unsupported ram configurations and abort + */ + unsigned device; + + for(device = 0x50; device <= 0x53; device += 1) { + int byte; + + byte = 0; /* Disable ECC */ + /* 0 == None, 1 == Parity, 2 == ECC */ + if (byte != 2) continue; + + /* set the device I'm talking too */ + __builtin_outb(device, 0x1004); + + /* poll for transaction completion */ + byte = __builtin_inb(0x10); + while(byte == 0) { + byte = __builtin_inb(0x10); + } + } +} |