diff options
Diffstat (limited to 'src/northbridge/amd/amdfam10')
| -rw-r--r-- | src/northbridge/amd/amdfam10/northbridge.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c index caf5410618..efd8a7057e 100644 --- a/src/northbridge/amd/amdfam10/northbridge.c +++ b/src/northbridge/amd/amdfam10/northbridge.c @@ -199,7 +199,6 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool unsigned int next_unitid; u32 ht_c_index; u32 ht_unitid_base[4]; // here assume only 4 HT device on chain - u32 min_bus; u32 max_devfn; /* Check for connected link. */ @@ -220,25 +219,21 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool */ if (CONFIG_SB_HT_CHAIN_ON_BUS0 == 0) { - min_bus = ++max; + max++; } else if (is_sblink) { - // first chain will on bus 0 - min_bus = max; /* actually max is 0 here */ + } else if (CONFIG_SB_HT_CHAIN_ON_BUS0 == 1) { - min_bus = ++max; + max++; } else if (CONFIG_SB_HT_CHAIN_ON_BUS0 > 1) { - // second chain will be on 0x40, third 0x80, forth 0xc0 - // i would refined that to 2, 3, 4 ==> 0, 0x, 40, 0x80, 0xc0 - // >4 will use more segments, // We can have 16 segmment and every segment have 256 bus, // For that case need the kernel support mmio pci config. /* One node can have 8 link and segn is the same. */ - min_bus = (((max & 0xff) >> 3) + 1) << 3; - max = min_bus; + max++; + max = ALIGN_UP(max, 8); } - link->secondary = min_bus; + link->secondary = max; link->subordinate = link->secondary; ht_route_link(link, HT_ROUTE_SCAN); @@ -255,7 +250,7 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool } //if ext conf is enabled, only need use 0x1f - if (min_bus == 0) + if (link->secondary == 0) max_devfn = (0x17<<3) | 7; else max_devfn = (0x1f<<3) | 7; |