diff options
Diffstat (limited to 'src/southbridge/intel/common/smbus.c')
| -rw-r--r-- | src/southbridge/intel/common/smbus.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/southbridge/intel/common/smbus.c b/src/southbridge/intel/common/smbus.c index f294f3163b..f6805ad50f 100644 --- a/src/southbridge/intel/common/smbus.c +++ b/src/southbridge/intel/common/smbus.c @@ -92,6 +92,15 @@ static void host_and_or(uintptr_t base, u8 reg, u8 mask, u8 or) host_outb(base, reg, value); } +void smbus_host_reset(uintptr_t base) +{ + /* Disable interrupt generation. */ + host_outb(base, SMBHSTCTL, 0); + + /* Clear any lingering errors, so transactions can run. */ + host_and_or(base, SMBHSTSTAT, 0xff, 0); +} + static int host_completed(u8 status) { if (status & SMBHSTSTS_HOST_BUSY) |