fix some glitches in cht code: always enable routing on node7, plus do masking right when setting cpucnt/nodecnt
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@966 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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@ -474,7 +474,8 @@ static void rename_temp_node(u8 node)
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static bool check_connection(u8 src, u8 dest, u8 link)
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{
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/* this function does 2 things:
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* 1) detect whether the coherent HT link is connected
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* 1) detect whether the coherent HT link is connected.
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* After this step follows a small idle loop.
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* 2) verify that the coherent hypertransport link
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* is established and actually working by reading the
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* remote node's vendor/device id
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@ -491,6 +492,9 @@ static bool check_connection(u8 src, u8 dest, u8 link)
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if ( (val&0x17) != 0x03)
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return 0;
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/* idle loop to make sure the link is established */
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for (val=0;val<16;val++);
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/* 2) */
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val=pci_read_config32(NODE_HT(dest),0);
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if(val != 0x11001022)
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@ -673,7 +677,7 @@ static u8 setup_smp(void)
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/* We found 2 nodes so far */
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setup_node(0, cpus); /* Node 1 is there. Setup Node 0 correctly */
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setup_remote_node(1, cpus); /* Setup the routes on the remote node */
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enable_routing(1); /* Enable routing on Node 1 */
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enable_routing(7); /* Enable routing on Node 1 */
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rename_temp_node(1); /* Rename Node 7 to Node 1 */
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clear_temp_row(0); /* delete temporary connection */
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@ -687,7 +691,6 @@ static u8 setup_smp(void)
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if (!check_connection(0, 7, UP)) { // Link: UP
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print_debug("No connection to Node 2.\r\n");
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clear_temp_row(0); /* delete temp connection */
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// detect_mp_capability(2); /* and get 2p working */
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return 2;
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}
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@ -698,11 +701,10 @@ static u8 setup_smp(void)
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setup_temp_row(0,1,cpus); /* temp. link between nodes 0 and 1 */
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setup_temp_row(1,3,cpus); /* temp. link between nodes 1 and 3 */
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if (!check_connection(0, 7, UP)) { // Link: UP
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if (!check_connection(1, 7, UP)) { // Link: UP
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print_debug("No connection to Node 3.\r\n");
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clear_temp_row(0); /* delete temp connection */
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clear_temp_row(1); /* delete temp connection */
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//detect_mp_capability(2); /* and get 2p working */
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return 2;
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}
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@ -719,7 +721,7 @@ static u8 setup_smp(void)
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setup_temp_row(0,1,cpus);
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setup_temp_row(1,3,cpus);
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setup_temp_node(3,cpus);
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enable_routing(3);
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enable_routing(7); /* enable routing on node 3 (temp.) */
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rename_temp_node(3);
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clear_temp_row(0);
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@ -746,12 +748,12 @@ static unsigned detect_mp_capabilities(unsigned cpus)
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print_debug("\r\n");
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#endif
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if (cpus>2)
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mask=0x04; /* BigMPCap */
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mask=0x06; /* BigMPCap */
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else
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mask=0x02; /* MPCap */
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for (node=0; node<cpus; node++) {
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if (!(pci_read_config32(NODE_MC(node), 0xe8) & mask))
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if ((pci_read_config32(NODE_MC(node), 0xe8) & mask)!=mask)
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mp_cap=FALSE;
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}
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@ -801,7 +803,7 @@ static void coherent_ht_finalize(unsigned cpus)
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for (node=0; node<cpus; node++) {
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u32 val;
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val=pci_read_config32(NODE_HT(node), 0x60);
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val &= 0x000F0070;
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val &= (~0x000F0070);
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val |= ((cpus-1)<<16)|((cpus-1)<<4);
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pci_write_config32(NODE_HT(node),0x60,val);
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