diff options
Diffstat (limited to 'src/southbridge')
| -rw-r--r-- | src/southbridge/via/vt8237r/vt8237r_early_smbus.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/southbridge/via/vt8237r/vt8237r_early_smbus.c b/src/southbridge/via/vt8237r/vt8237r_early_smbus.c index 0523092b11..357ad819c0 100644 --- a/src/southbridge/via/vt8237r/vt8237r_early_smbus.c +++ b/src/southbridge/via/vt8237r/vt8237r_early_smbus.c @@ -61,8 +61,10 @@ static void smbus_wait_until_ready(void) PRINT_DEBUG("Waiting until SMBus ready\n"); - /* Yes, this is a mess, but it's the easiest way to do it. */ - /* XXX not so messy, but an explanation of the hack would have been better */ + /* Loop up to SMBUS_TIMEOUT times, waiting for bit 0 of the + * SMBus Host Status register to go to 0, indicating the operation + * was completed successfully. I don't remember why I did it this way, + * but I think it was because ROMCC was running low on registers */ loops = 0; while ((inb(SMBHSTSTAT) & 1) == 1 && loops < SMBUS_TIMEOUT) ++loops; |