diff options
Diffstat (limited to 'src/southbridge/amd/sb700/early_setup.c')
| -rw-r--r-- | src/southbridge/amd/sb700/early_setup.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/southbridge/amd/sb700/early_setup.c b/src/southbridge/amd/sb700/early_setup.c index 2828bbed51..8ab97adce1 100644 --- a/src/southbridge/amd/sb700/early_setup.c +++ b/src/southbridge/amd/sb700/early_setup.c @@ -2,6 +2,7 @@ * This file is part of the coreboot project. * * Copyright (C) 2010 Advanced Micro Devices, Inc. + * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -395,6 +396,15 @@ static void sb700_devices_por_init(void) byte |= (1 << 0); pci_write_config8(dev, 0xd2, byte); + /* set auxiliary smbus iobase and enable controller */ + pci_write_config32(dev, 0x58, SMBUS_AUX_IO_BASE | 1); + + if (inb(SMBUS_IO_BASE) == 0xff) + printk(BIOS_INFO, "%s: Primary SMBUS controller I/O not found\n", __func__); + + if (inb(SMBUS_AUX_IO_BASE) == 0xff) + printk(BIOS_INFO, "%s: Secondary SMBUS controller I/O not found\n", __func__); + /* KB2RstEnable */ pci_write_config8(dev, 0x40, 0x44); |