Add manual HT BUID fixup to detect previously set BUIDs in early init. This fixes...

[coreboot.git] / src / northbridge / amd / amdht / ht_wrapper.c

diff --git a/src/northbridge/amd/amdht/ht_wrapper.c b/src/northbridge/amd/amdht/ht_wrapper.c
index ad276e42eff7bce0220e6c8096f637ae53d7c85e..d755f601744198bb50b78c223c7cacb881a4dcf8 100644 (file)
--- a/src/northbridge/amd/amdht/ht_wrapper.c
+++ b/src/northbridge/amd/amdht/ht_wrapper.c
@@ -79,17 +79,57 @@ static  u32 get_nodes(void)
 
 /**
  * void AMD_CB_EventNotify (u8 evtClass, u16 event, const u8 *pEventData0)
- *
- *  Needs to be fixed to output the debug structures.
- *
  */
-void AMD_CB_EventNotify (u8 evtClass, u16 event, const u8 *pEventData0)
+void AMD_CB_EventNotify (u8 evtClass, u16 event, u8 *pEventData0)
 {
+       u8 i;
+
        printk_debug("AMD_CB_EventNotify()\n");
-       printk_debug("event class: %02x event: %04x\n", evtClass, event);
+       printk_debug(" event class: %02x\n event: %04x\n data: ", evtClass, event);
+
+       for (i = 0; i < *pEventData0; i++) {
+               printk_debug(" %02x ", *(pEventData0 + i));
+       }
+       printk_debug("\n");
+
+}
+
 
+/**
+ * BOOL AMD_CB_ManualBUIDSwapList(u8 Node, u8 Link, u8 **List)
+ * Description:
+ *     This routine is called every time a non-coherent chain is processed.
+ *     BUID assignment may be controlled explicitly on a non-coherent chain. Provide a
+ *     swap list. The first part of the list controls the BUID assignment and the
+ *     second part of the list provides the device to device linking.  Device orientation
+ *     can be detected automatically, or explicitly.  See documentation for more details.
+ *
+ *     Automatic non-coherent init assigns BUIDs starting at 1 and incrementing sequentially
+ *     based on each device's unit count.
+ *
+ * Parameters:
+ *     @param[in]  u8  node    = The node on which this chain is located
+ *     @param[in]  u8  link    = The link on the host for this chain
+ *     @param[out] u8** list   = supply a pointer to a list
+ *     @param[out] BOOL result = true to use a manual list
+ *                               false to initialize the link automatically
+ */
+BOOL AMD_CB_ManualBUIDSwapList (u8 node, u16 link, u8 **List)
+{
+       u8 swaplist[] = { 0xFF, HT_CHAIN_UNITID_BASE, HT_CHAIN_END_UNITID_BASE, 0xFF };
+       /* If the BUID was adjusted in early_ht we need to do the manual override */
+       if ((HT_CHAIN_UNITID_BASE != 0) && (HT_CHAIN_END_UNITID_BASE != 0)) {
+               printk_debug("AMD_CB_ManualBUIDSwapList()\n");
+               if ((node == 0) && (link == 0)) {       /* BSP SB link */
+                       *List = swaplist;
+                       return 1;
+               }
+       }
+
+       return 0;
 }
 
+
 /**
  * void getAmdTopolist(u8 ***p)
  *
@@ -110,6 +150,7 @@ void getAmdTopolist(u8 ***p)
  */
 void amd_ht_init(struct sys_info *sysinfo)
 {
+
        AMD_HTBLOCK ht_wrapper = {
                NULL,   // u8 **topolist;
                0,      // u8 AutoBusStart;
@@ -117,7 +158,7 @@ void amd_ht_init(struct sys_info *sysinfo)
                6,      // u8 AutoBusIncrement;
                NULL,   // BOOL (*AMD_CB_IgnoreLink)();
                NULL,   // BOOL (*AMD_CB_OverrideBusNumbers)();
-               NULL,   // BOOL (*AMD_CB_ManualBUIDSwapList)();
+               AMD_CB_ManualBUIDSwapList,      // BOOL (*AMD_CB_ManualBUIDSwapList)();
                NULL,   // void (*AMD_CB_DeviceCapOverride)();
                NULL,   // void (*AMD_CB_Cpu2CpuPCBLimits)();
                NULL,   // void (*AMD_CB_IOPCBLimits)();