diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/northbridge/amd/amdk8/coherent_ht.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/src/northbridge/amd/amdk8/coherent_ht.c b/src/northbridge/amd/amdk8/coherent_ht.c index 8bb7869286..96321637b3 100644 --- a/src/northbridge/amd/amdk8/coherent_ht.c +++ b/src/northbridge/amd/amdk8/coherent_ht.c @@ -474,7 +474,8 @@ static void rename_temp_node(u8 node) static bool check_connection(u8 src, u8 dest, u8 link) { /* this function does 2 things: - * 1) detect whether the coherent HT link is connected + * 1) detect whether the coherent HT link is connected. + * After this step follows a small idle loop. * 2) verify that the coherent hypertransport link * is established and actually working by reading the * remote node's vendor/device id @@ -491,6 +492,9 @@ static bool check_connection(u8 src, u8 dest, u8 link) if ( (val&0x17) != 0x03) return 0; + /* idle loop to make sure the link is established */ + for (val=0;val<16;val++); + /* 2) */ val=pci_read_config32(NODE_HT(dest),0); if(val != 0x11001022) @@ -673,7 +677,7 @@ static u8 setup_smp(void) /* We found 2 nodes so far */ setup_node(0, cpus); /* Node 1 is there. Setup Node 0 correctly */ setup_remote_node(1, cpus); /* Setup the routes on the remote node */ - enable_routing(1); /* Enable routing on Node 1 */ + enable_routing(7); /* Enable routing on Node 1 */ rename_temp_node(1); /* Rename Node 7 to Node 1 */ clear_temp_row(0); /* delete temporary connection */ @@ -687,7 +691,6 @@ static u8 setup_smp(void) if (!check_connection(0, 7, UP)) { // Link: UP print_debug("No connection to Node 2.\r\n"); clear_temp_row(0); /* delete temp connection */ - // detect_mp_capability(2); /* and get 2p working */ return 2; } @@ -698,11 +701,10 @@ static u8 setup_smp(void) setup_temp_row(0,1,cpus); /* temp. link between nodes 0 and 1 */ setup_temp_row(1,3,cpus); /* temp. link between nodes 1 and 3 */ - if (!check_connection(0, 7, UP)) { // Link: UP + if (!check_connection(1, 7, UP)) { // Link: UP print_debug("No connection to Node 3.\r\n"); clear_temp_row(0); /* delete temp connection */ clear_temp_row(1); /* delete temp connection */ - //detect_mp_capability(2); /* and get 2p working */ return 2; } @@ -719,7 +721,7 @@ static u8 setup_smp(void) setup_temp_row(0,1,cpus); setup_temp_row(1,3,cpus); setup_temp_node(3,cpus); - enable_routing(3); + enable_routing(7); /* enable routing on node 3 (temp.) */ rename_temp_node(3); clear_temp_row(0); @@ -746,12 +748,12 @@ static unsigned detect_mp_capabilities(unsigned cpus) print_debug("\r\n"); #endif if (cpus>2) - mask=0x04; /* BigMPCap */ + mask=0x06; /* BigMPCap */ else mask=0x02; /* MPCap */ for (node=0; node<cpus; node++) { - if (!(pci_read_config32(NODE_MC(node), 0xe8) & mask)) + if ((pci_read_config32(NODE_MC(node), 0xe8) & mask)!=mask) mp_cap=FALSE; } @@ -801,7 +803,7 @@ static void coherent_ht_finalize(unsigned cpus) for (node=0; node<cpus; node++) { u32 val; val=pci_read_config32(NODE_HT(node), 0x60); - val &= 0x000F0070; + val &= (~0x000F0070); val |= ((cpus-1)<<16)|((cpus-1)<<4); pci_write_config32(NODE_HT(node),0x60,val); |