diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2015-03-12 16:16:59 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2015-06-04 11:17:16 +0200 |
| commit | b39714e5ee07deb36165d4c4f85b4b1effbd30c6 (patch) | |
| tree | 70627dde63d5cd4a168faeb7a82e2d365d1b7819 /src/northbridge/amd | |
| parent | 09b20cd05f111cedeb1a64cead96bec6aa67c015 (diff) | |
HyperTransport: Move pci_scan_bus() call
Allows to remove parameter max from the call, it is not involved
with the unitid assignment.
Change-Id: I087622f4ff69474f0b27cfd8709106ab8ac4ca98
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8687
Tested-by: build bot (Jenkins)
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/northbridge/amd')
| -rw-r--r-- | src/northbridge/amd/amdfam10/northbridge.c | 6 | ||||
| -rw-r--r-- | src/northbridge/amd/amdk8/northbridge.c | 6 |
2 files changed, 10 insertions, 2 deletions
diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c index 3fb0beb04a..a2124f0edc 100644 --- a/src/northbridge/amd/amdfam10/northbridge.c +++ b/src/northbridge/amd/amdfam10/northbridge.c @@ -165,6 +165,7 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool int i; + unsigned int next_unitid; u32 ht_c_index; u32 ht_unitid_base[4]; // here assume only 4 HT device on chain u32 max_bus; @@ -259,7 +260,10 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool else max_devfn = (0x1f<<3) | 7; - max = hypertransport_scan_chain(link, 0, max_devfn, max, ht_unitid_base, offset_unit_id(is_sblink)); + next_unitid = hypertransport_scan_chain(link, 0, max_devfn, ht_unitid_base, offset_unit_id(is_sblink)); + + /* Now that nothing is overlapping it is safe to scan the children. */ + max = pci_scan_bus(link, 0x00, ((next_unitid - 1) << 3) | 7, max); /* We know the number of busses behind this bridge. Set the * subordinate bus number to it's real value diff --git a/src/northbridge/amd/amdk8/northbridge.c b/src/northbridge/amd/amdk8/northbridge.c index f2e0e4c5f7..29cc5edb77 100644 --- a/src/northbridge/amd/amdk8/northbridge.c +++ b/src/northbridge/amd/amdk8/northbridge.c @@ -105,6 +105,7 @@ static u32 amdk8_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool is_ u32 max) { int i; + unsigned int next_unitid; u32 busses, config_busses; u32 free_reg, config_reg; u32 ht_unitid_base[4]; // here assume only 4 HT device on chain @@ -209,7 +210,10 @@ static u32 amdk8_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool is_ else max_devfn = (0x1f<<3) | 7; - max = hypertransport_scan_chain(link, 0, max_devfn, max, ht_unitid_base, offset_unit_id(is_sblink)); + next_unitid = hypertransport_scan_chain(link, 0, max_devfn, ht_unitid_base, offset_unit_id(is_sblink)); + + /* Now that nothing is overlapping it is safe to scan the children. */ + max = pci_scan_bus(link, 0x00, ((next_unitid - 1) << 3) | 7, max); /* We know the number of busses behind this bridge. Set the * subordinate bus number to it's real value |