27 lines
610 B
C
27 lines
610 B
C
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 to */
|
|
__builtin_outb(device, 0x1004);
|
|
|
|
/* poll for transaction completion */
|
|
byte = __builtin_inb(0x10);
|
|
while(byte == 0) {
|
|
byte = __builtin_inb(0x10);
|
|
}
|
|
}
|
|
}
|