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AMD K8 fam10: Eliminate local variables busn and max_bus 

Change-Id: I297de09dcf93511acece4441593ef958a390fddb
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8362
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
This commit is contained in:
Kyösti Mälkki 2015-02-22 09:22:55 +02:00
parent 20968c9220
commit 6326255caa
1 changed files with 2 additions and 6 deletions
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8
src/northbridge/amd/amdfam10/northbridge.c
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@ -199,11 +199,7 @@ 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 max_bus;
u32 min_bus;
#if CONFIG_SB_HT_CHAIN_ON_BUS0 > 1
u32 busn = max&0xff;
#endif
u32 max_devfn;
/* Check for connected link. */
@ -232,7 +228,8 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool
// 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.
else {
min_bus = ((busn>>3) + 1) << 3; // one node can have 8 link and segn is the same
/* One node can have 8 link and segn is the same. */
min_bus = (((max & 0xff) >> 3) + 1) << 3;
}
max = min_bus;
#else
@ -244,7 +241,6 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool
#else
min_bus = ++max;
#endif
max_bus = 0xfc;
link->secondary = min_bus;
link->subordinate = link->secondary;