summaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/northbridge/amd/amdfam10/northbridge.c34
-rw-r--r--src/northbridge/amd/amdk8/incoherent_ht.c27
-rw-r--r--src/northbridge/amd/amdk8/northbridge.c35
3 files changed, 36 insertions, 60 deletions
diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c
index 84f255378e..ce97f62cc5 100644
--- a/src/northbridge/amd/amdfam10/northbridge.c
+++ b/src/northbridge/amd/amdfam10/northbridge.c
@@ -288,37 +288,27 @@ static unsigned amdfam10_scan_chains(device_t dev, unsigned max)
unsigned nodeid;
struct bus *link;
unsigned sblink = sysconf.sblk;
- unsigned offset_unitid = 0;
nodeid = amdfam10_nodeid(dev);
-// Put sb chain in bus 0
-#if CONFIG_SB_HT_CHAIN_ON_BUS0 > 0
- if(nodeid==0) {
- #if ((CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20))
- offset_unitid = 1;
- #endif
- for (link = dev->link_list; link; link = link->next)
- if (link->link_num == sblink)
- max = amdfam10_scan_chain(dev, nodeid, link, sblink, sblink, max, offset_unitid ); // do sb ht chain at first, in case s2885 put sb chain (8131/8111) on link2, but put 8151 on link0
+ /* Do sb ht chain at first, in case s2885 put sb chain (8131/8111) on link2, but put 8151 on link0 */
+ for (link = dev->link_list; link; link = link->next) {
+ unsigned offset_unitid = (CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20);
+ if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 0) && (nodeid == 0) && (link->link_num == sblink))
+ max = amdfam10_scan_chain(dev, nodeid, link, link->link_num, sblink, max, offset_unitid);
}
-#endif
#if CONFIG_PCI_BUS_SEGN_BITS
max = check_segn(dev, max, sysconf.nodes, &sysconf);
#endif
- for(link = dev->link_list; link; link = link->next) {
-#if CONFIG_SB_HT_CHAIN_ON_BUS0 > 0
- if( (nodeid == 0) && (sblink == link->link_num) ) continue; //already done
-#endif
- offset_unitid = 0;
- #if ((CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20))
- #if CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY
- if((nodeid == 0) && (sblink == link->link_num))
- #endif
- offset_unitid = 1;
- #endif
+ for (link = dev->link_list; link; link = link->next) {
+ if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 0) && (nodeid == 0) && (link->link_num == sblink))
+ continue;
+
+ unsigned offset_unitid = (CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20);
+ offset_unitid = offset_unitid &&
+ (((nodeid == 0) && (sblink == link->link_num)) || !CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY);
max = amdfam10_scan_chain(dev, nodeid, link, link->link_num, sblink, max, offset_unitid);
}
diff --git a/src/northbridge/amd/amdk8/incoherent_ht.c b/src/northbridge/amd/amdk8/incoherent_ht.c
index 3c6cf33c9f..40589c475c 100644
--- a/src/northbridge/amd/amdk8/incoherent_ht.c
+++ b/src/northbridge/amd/amdk8/incoherent_ht.c
@@ -532,19 +532,13 @@ static int optimize_link_read_pointers_chain(uint8_t ht_c_num)
reset_needed = 0;
+ /* First one is SB HT chain. */
for (i = 0; i < ht_c_num; i++) {
uint32_t reg;
uint8_t nodeid, linkn;
uint8_t busn;
uint8_t val;
- unsigned devn = 1;
-
- #if ((CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20))
- #if CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY
- if(i==0) // to check if it is sb ht chain
- #endif
- devn = CONFIG_HT_CHAIN_UNITID_BASE;
- #endif
+ unsigned devn;
reg = pci_read_config32(PCI_DEV(0,0x18,1), 0xe0 + i * 4);
@@ -552,6 +546,11 @@ static int optimize_link_read_pointers_chain(uint8_t ht_c_num)
linkn = ((reg & 0xf00)>>8); // link n
busn = (reg & 0xff0000)>>16; //busn
+ unsigned offset_unitid = (CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20);
+ offset_unitid = offset_unitid && (!CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY || (i == 0));
+
+ devn = offset_unitid ? CONFIG_HT_CHAIN_UNITID_BASE : 1;
+
reg = pci_read_config32( PCI_DEV(busn, devn, 0), PCI_VENDOR_ID); // ? the chain dev maybe offseted
if ( (reg & 0xffff) == PCI_VENDOR_ID_AMD) {
val = 0x25;
@@ -649,14 +648,13 @@ static int ht_setup_chains(uint8_t ht_c_num)
sysinfo->link_pair_num = 0;
#endif
- // first one is SB Chain
+ /* First one is SB HT chain. */
for (i = 0; i < ht_c_num; i++) {
uint32_t reg;
uint8_t devpos;
unsigned regpos;
uint32_t dword;
uint8_t busn;
- unsigned offset_unitid = 0;
reg = pci_read_config32(PCI_DEV(0,0x18,1), 0xe0 + i * 4);
@@ -670,13 +668,8 @@ static int ht_setup_chains(uint8_t ht_c_num)
dword |= (reg & 0xffff0000)>>8;
pci_write_config32( PCI_DEV(0, devpos,0), regpos , dword);
-
- #if ((CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20))
- #if CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY
- if(i==0) // to check if it is sb ht chain
- #endif
- offset_unitid = 1;
- #endif
+ unsigned offset_unitid = (CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20);
+ offset_unitid = offset_unitid && (!CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY || (i == 0));
/* Make certain the HT bus is not enumerated */
ht_collapse_previous_enumeration(busn, offset_unitid);
diff --git a/src/northbridge/amd/amdk8/northbridge.c b/src/northbridge/amd/amdk8/northbridge.c
index 081ec6d658..ea7bdc05ed 100644
--- a/src/northbridge/amd/amdk8/northbridge.c
+++ b/src/northbridge/amd/amdk8/northbridge.c
@@ -237,33 +237,26 @@ static unsigned amdk8_scan_chains(device_t dev, unsigned max)
unsigned nodeid;
struct bus *link;
unsigned sblink = 0;
- unsigned offset_unitid = 0;
nodeid = amdk8_nodeid(dev);
-
- if(nodeid==0) {
+ if (nodeid == 0)
sblink = (pci_read_config32(dev, 0x64)>>8) & 3;
-#if CONFIG_SB_HT_CHAIN_ON_BUS0 > 0
- #if ((CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20))
- offset_unitid = 1;
- #endif
- for (link = dev->link_list; link; link = link->next)
- if (link->link_num == sblink)
- max = amdk8_scan_chain(dev, nodeid, link, sblink, sblink, max, offset_unitid ); // do sb ht chain at first, in case s2885 put sb chain (8131/8111) on link2, but put 8151 on link0
-#endif
+
+ // do sb ht chain at first, in case s2885 put sb chain (8131/8111) on link2, but put 8151 on link0
+ for (link = dev->link_list; link; link = link->next) {
+ unsigned offset_unitid = (CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20);
+
+ if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 0) && (nodeid == 0) && (link->link_num == sblink))
+ max = amdk8_scan_chain(dev, nodeid, link, link->link_num, sblink, max, offset_unitid);
}
for (link = dev->link_list; link; link = link->next) {
-#if CONFIG_SB_HT_CHAIN_ON_BUS0 > 0
- if( (nodeid == 0) && (sblink == link->link_num) ) continue; //already done
-#endif
- offset_unitid = 0;
- #if ((CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20))
- #if CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY
- if((nodeid == 0) && (sblink == link->link_num))
- #endif
- offset_unitid = 1;
- #endif
+ if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 0) && (nodeid == 0) && (link->link_num == sblink))
+ continue;
+
+ unsigned offset_unitid = (CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20);
+ offset_unitid = offset_unitid &&
+ (((nodeid == 0) && (sblink == link->link_num)) || !CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY);
max = amdk8_scan_chain(dev, nodeid, link, link->link_num, sblink, max, offset_unitid);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 02:57:58 +0000