diff options
Diffstat (limited to 'src/northbridge/amd/amdk8/incoherent_ht.c')
| -rw-r--r-- | src/northbridge/amd/amdk8/incoherent_ht.c | 26 |
1 files changed, 10 insertions, 16 deletions
diff --git a/src/northbridge/amd/amdk8/incoherent_ht.c b/src/northbridge/amd/amdk8/incoherent_ht.c index c5f7f2da6f..3255a03873 100644 --- a/src/northbridge/amd/amdk8/incoherent_ht.c +++ b/src/northbridge/amd/amdk8/incoherent_ht.c @@ -1,3 +1,8 @@ +/* + This should be done by Eric + 2004.12 yhlu add multi ht chain dynamically support +*/ + #include <device/pci_def.h> #include <device/pci_ids.h> #include <device/hypertransport_def.h> @@ -366,6 +371,7 @@ static int ht_setup_chains_x(void) uint32_t tempreg; unsigned next_busn; int ht_c_num; + int nodes; // read PCI_DEV(0,0x18,0) 0x64 bit [8:9] to find out SbLink m reg = pci_read_config32(PCI_DEV(0, 0x18, 0), 0x64); @@ -377,18 +383,13 @@ static int ht_setup_chains_x(void) for(ht_c_num=1;ht_c_num<4; ht_c_num++) { pci_write_config32(PCI_DEV(0, 0x18, 1), 0xe0 + ht_c_num * 4, 0); } + + nodes = ((pci_read_config32(PCI_DEV(0, 0x18, 0), 0x60)>>4) & 7) + 1; - for(nodeid=0; nodeid<8; nodeid++) { + for(nodeid=0; nodeid<nodes; nodeid++) { device_t dev; unsigned linkn; dev = PCI_DEV(0, 0x18+nodeid,0); - //read id, check id to see if dev exists ; - reg = pci_read_config32(dev, PCI_VENDOR_ID); - if (((reg & 0xffff) == 0x0000) || ((reg & 0xffff) == 0xffff) || - (((reg >> 16) & 0xffff) == 0xffff) || - (((reg >> 16) & 0xffff) == 0x0000)) { - break; - } for(linkn = 0; linkn<3; linkn++) { unsigned regpos; regpos = 0x98 + 0x20 * linkn; @@ -412,17 +413,10 @@ static int ht_setup_chains_x(void) } //update 0xe0, 0xe4, 0xe8, 0xec from PCI_DEV(0, 0x18,1) to PCI_DEV(0, 0x19,1) to PCI_DEV(0, 0x1f,1); - for(nodeid = 1; nodeid<8; nodeid++) { + for(nodeid = 1; nodeid<nodes; nodeid++) { int i; device_t dev; dev = PCI_DEV(0, 0x18+nodeid,1); - //read id, check id to see if dev exists ; - reg = pci_read_config32(dev, PCI_VENDOR_ID); - if (((reg & 0xffff) == 0x0000) || ((reg & 0xffff) == 0xffff) || - (((reg >> 16) & 0xffff) == 0xffff) || - (((reg >> 16) & 0xffff) == 0x0000)) { - break; - } for(i = 0; i< 4; i++) { unsigned regpos; regpos = 0xe0 + i * 4; |