diff options
Diffstat (limited to 'src/soc/amd/stoneyridge/southbridge.c')
| -rw-r--r-- | src/soc/amd/stoneyridge/southbridge.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/soc/amd/stoneyridge/southbridge.c b/src/soc/amd/stoneyridge/southbridge.c index 1b2afec3f1..b0aaf241cd 100644 --- a/src/soc/amd/stoneyridge/southbridge.c +++ b/src/soc/amd/stoneyridge/southbridge.c @@ -378,8 +378,11 @@ static void setup_misc(int *reboot) static void fch_smbus_init(void) { + /* 400 kHz smbus speed. */ + const uint8_t smbus_speed = (66000000 / (400000 * 4)); + pm_write8(SMB_ASF_IO_BASE, SMB_BASE_ADDR >> 8); - smbus_write8(SMBTIMING, SMB_SPEED_400KHZ); + smbus_write8(SMBTIMING, smbus_speed); /* Clear all SMBUS status bits */ smbus_write8(SMBHSTSTAT, SMBHST_STAT_CLEAR); smbus_write8(SMBSLVSTAT, SMBSLV_STAT_CLEAR); |