diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2015-02-05 13:36:54 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2015-06-05 10:16:40 +0200 |
| commit | 04b1fc866930ee7a95ef70c9c5964d533ff030c7 (patch) | |
| tree | 1d8815217b12348d13b8dbec3a9003017feb9340 /src/northbridge/amd | |
| parent | 37d5afb1884e9a1eb3ec2a8022c47730eb3f674a (diff) | |
AMD K8 fam10: Refactor logic around SB_HT_CHAIN_ON_BUS0
Change-Id: I452a93af452073eeac4e6cb9bbc232dc59e911c1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8365
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Diffstat (limited to 'src/northbridge/amd')
| -rw-r--r-- | src/northbridge/amd/amdfam10/northbridge.c | 14 | ||||
| -rw-r--r-- | src/northbridge/amd/amdk8/northbridge.c | 12 |
2 files changed, 7 insertions, 19 deletions
diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c index fb963f6a70..98f41f3964 100644 --- a/src/northbridge/amd/amdfam10/northbridge.c +++ b/src/northbridge/amd/amdfam10/northbridge.c @@ -216,20 +216,12 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool * so we set the subordinate bus number to 0xff for the moment. */ - if (CONFIG_SB_HT_CHAIN_ON_BUS0 == 0) { + if ((CONFIG_SB_HT_CHAIN_ON_BUS0 == 0) || !is_sblink) max++; - } else if (is_sblink) { - } else if (CONFIG_SB_HT_CHAIN_ON_BUS0 == 1) { - max++; - } else if (CONFIG_SB_HT_CHAIN_ON_BUS0 > 1) { - // 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. */ - max++; + /* One node can have 8 link and segn is the same. */ + if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 1) && !is_sblink) max = ALIGN_UP(max, 8); - } link->secondary = max; link->subordinate = link->secondary; diff --git a/src/northbridge/amd/amdk8/northbridge.c b/src/northbridge/amd/amdk8/northbridge.c index e08788848a..7184c38a70 100644 --- a/src/northbridge/amd/amdk8/northbridge.c +++ b/src/northbridge/amd/amdk8/northbridge.c @@ -178,17 +178,13 @@ static u32 amdk8_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool is_ * We have no idea how many busses are behind this bridge yet, * so we set the subordinate bus number to 0xff for the moment. */ - if (CONFIG_SB_HT_CHAIN_ON_BUS0 == 0) { - max++; - } else if (is_sblink) { - } else if (CONFIG_SB_HT_CHAIN_ON_BUS0 == 1) { - max++; - } else if (CONFIG_SB_HT_CHAIN_ON_BUS0 > 1) { - /* Second chain will be on 0x40, third 0x80, forth 0xc0. */ + if ((CONFIG_SB_HT_CHAIN_ON_BUS0 == 0) || !is_sblink) max++; + + /* Second chain will be on 0x40, third 0x80, forth 0xc0. */ + if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 1) && !is_sblink) max = ALIGN_UP(max, 0x40); - } link->secondary = max; link->subordinate = link->secondary; |