Applying 11_26_car_tyan.diff from Yinghai Lu.

NOTE: This will break the tree so it can be fixed up later



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2115 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

2 files changed, 37 insertions, 203 deletions

diff --git a/src/mainboard/tyan/s2850/Config.lb b/src/mainboard/tyan/s2850/Config.lb
index df8788233b..1916fa70c3 100644
--- a/src/mainboard/tyan/s2850/Config.lb
+++ b/src/mainboard/tyan/s2850/Config.lb
@@ -93,9 +93,13 @@ end
 ##
 ## Build our 16 bit and 32 bit linuxBIOS entry code
 ##
-mainboardinit cpu/x86/16bit/entry16.inc
+if USE_FALLBACK_IMAGE
+        mainboardinit cpu/x86/16bit/entry16.inc
+        ldscript /cpu/x86/16bit/entry16.lds
+end
+
 mainboardinit cpu/x86/32bit/entry32.inc
-ldscript /cpu/x86/16bit/entry16.lds
+
 if USE_DCACHE_RAM
         if CONFIG_USE_INIT
                 ldscript /cpu/x86/32bit/entry32.lds
diff --git a/src/mainboard/tyan/s2850/cache_as_ram_auto.c b/src/mainboard/tyan/s2850/cache_as_ram_auto.c
index e9063f67b2..b7a39047f2 100644
--- a/src/mainboard/tyan/s2850/cache_as_ram_auto.c
+++ b/src/mainboard/tyan/s2850/cache_as_ram_auto.c
@@ -14,7 +14,6 @@
 #include "ram/ramtest.c"
 
 #include "northbridge/amd/amdk8/cpu_rev.c"
-#define K8_HT_FREQ_1G_SUPPORT 0
 #include "northbridge/amd/amdk8/incoherent_ht.c"
 #include "southbridge/amd/amd8111/amd8111_early_smbus.c"
 #include "northbridge/amd/amdk8/raminit.h"
@@ -36,27 +35,6 @@
 #include "northbridge/amd/amdk8/setup_resource_map.c"
 
 #define SERIAL_DEV PNP_DEV(0x2e, W83627HF_SP1)
-/* Look up a which bus a given node/link combination is on.
- * return 0 when we can't find the answer.
- */
-static unsigned node_link_to_bus(unsigned node, unsigned link)
-{
-        unsigned reg;
-        
-        for(reg = 0xE0; reg < 0xF0; reg += 0x04) {
-                unsigned config_map;
-                config_map = pci_read_config32(PCI_DEV(0, 0x18, 1), reg);
-                if ((config_map & 3) != 3) {
-                        continue; 
-                }       
-                if ((((config_map >> 4) & 7) == node) &&
-                        (((config_map >> 8) & 3) == link))
-                {       
-                        return (config_map >> 16) & 0xff;
-                }       
-        }       
-        return 0;
-}       
 
 static void hard_reset(void)
 {
@@ -123,50 +101,28 @@ static inline int spd_read_byte(unsigned device, unsigned address)
 
 #if CONFIG_LOGICAL_CPUS==1
 #define SET_NB_CFG_54 1
-#include "cpu/amd/dualcore/dualcore.c"
-#else
-#include "cpu/amd/model_fxx/node_id.c"
 #endif
+#include "cpu/amd/dualcore/dualcore.c"
 
 #include "cpu/amd/car/copy_and_run.c"
 
+#include "cpu/amd/car/post_cache_as_ram.c"
+
+#include "cpu/amd/model_fxx/init_cpus.c"
+
+
 #if USE_FALLBACK_IMAGE == 1
 
 #include "southbridge/amd/amd8111/amd8111_enable_rom.c"
 #include "northbridge/amd/amdk8/early_ht.c"
 
-void real_main(unsigned long bist);
-
-void amd64_main(unsigned long bist)
+void failover_process(unsigned long bist, unsigned long cpu_init_detectedx)
 {
-#if CONFIG_LOGICAL_CPUS==1
-        struct node_core_id id;
-#else
-        unsigned nodeid;
-#endif
-        /* Make cerain my local apic is useable */
-//        enable_lapic();
+        unsigned last_boot_normal_x = last_boot_normal();
 
-#if CONFIG_LOGICAL_CPUS==1
-        id = get_node_core_id_x();
-        /* Is this a cpu only reset? */
-        if (cpu_init_detected(id.nodeid)) {
-#else
-//        nodeid = lapicid();
-	nodeid = get_node_id();
-        /* Is this a cpu only reset? */
-        if (cpu_init_detected(nodeid)) {
-#endif
-                if (last_boot_normal()) {
-                        goto normal_image;
-                } else {
-                        goto cpu_reset;
-                }
-        }
-
-        /* Is this a secondary cpu? */
-        if (!boot_cpu()) {
-                if (last_boot_normal()) {
+        /* Is this a cpu only reset? or Is this a secondary cpu? */
+        if ((cpu_init_detectedx) || (!boot_cpu())) {
+                if (last_boot_normal_x) {
                         goto normal_image;
                 } else {
                         goto fallback_image;
@@ -178,11 +134,10 @@ void amd64_main(unsigned long bist)
 
         enumerate_ht_chain();
 
-        /* Setup the ck804 */
         amd8111_enable_rom();
 
         /* Is this a deliberate reset by the bios */
-        if (bios_reset_detected() && last_boot_normal()) {
+        if (bios_reset_detected() && last_boot_normal_x) {
                 goto normal_image;
         }
         /* This is the primary cpu how should I boot? */
@@ -195,24 +150,27 @@ void amd64_main(unsigned long bist)
  normal_image:
         __asm__ volatile ("jmp __normal_image"
                 : /* outputs */
-                : "a" (bist) /* inputs */
-                );
- cpu_reset:
-#if 0
-        //CPU reset will reset memtroller ???
-        asm volatile ("jmp __cpu_reset" 
-                : /* outputs */ 
-                : "a"(bist) /* inputs */
+                : "a" (bist), "b" (cpu_init_detectedx) /* inputs */
                 );
-#endif
 
  fallback_image:
-        real_main(bist);
+	;
 }
-void real_main(unsigned long bist)
-#else
-void amd64_main(unsigned long bist)
 #endif
+
+void real_main(unsigned long bist, unsigned long cpu_init_detectedx);
+
+void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
+{
+
+#if USE_FALLBACK_IMAGE == 1
+        failover_process(bist, cpu_init_detectedx);
+#endif
+        real_main(bist, cpu_init_detectedx);
+
+}
+
+void real_main(unsigned long bist, unsigned long cpu_init_detectedx)
 {
 	static const struct mem_controller cpu[] = {
 		{
@@ -230,51 +188,7 @@ void amd64_main(unsigned long bist)
 	unsigned cpu_reset = 0;
 
         if (bist == 0) {
-#if CONFIG_LOGICAL_CPUS==1
-        	struct node_core_id id;
-#else
-	        unsigned nodeid;
-#endif
-                /* Skip this if there was a built in self test failure */
-//                amd_early_mtrr_init(); # don't need, already done in cache_as_ram
-
-#if CONFIG_LOGICAL_CPUS==1
-                set_apicid_cpuid_lo();
-		id = get_node_core_id_x(); // that is initid
-#else
-                nodeid = get_node_id();
-#endif
-
-                enable_lapic();
-                init_timer();
-
-
-#if CONFIG_LOGICAL_CPUS==1
-                if(id.coreid == 0) {
-                        if (cpu_init_detected(id.nodeid)) {
-				cpu_reset = 1;
-				goto cpu_reset_x;
-                        }
-                        distinguish_cpu_resets(id.nodeid);
-                }
-#else
-                if (cpu_init_detected(nodeid)) {
-			cpu_reset = 1;
-			goto cpu_reset_x;
-                }
-                distinguish_cpu_resets(nodeid);
-#endif
-
-
-                if (!boot_cpu()
-#if CONFIG_LOGICAL_CPUS==1 
-                        || (id.coreid != 0)
-#endif
-                ) {
-			// We need stop the CACHE as RAM for this CPU too
-			#include "cpu/amd/car/cache_as_ram_post.c"
-                        stop_this_cpu(); // it will stop all cores except core0 of cpu0
-                }
+		init_cpus(cpu_init_detectedx);
         }
 
 	
@@ -297,6 +211,7 @@ void amd64_main(unsigned long bist)
         // It is said that we should start core1 after all core0 launched
         start_other_cores();
 #endif
+        // automatically set that for you, but you might meet tight space
         needs_reset |= ht_setup_chains_x();
 
        	if (needs_reset) {
@@ -309,90 +224,5 @@ void amd64_main(unsigned long bist)
 	memreset_setup();
 	sdram_initialize(sizeof(cpu)/sizeof(cpu[0]), cpu);
 
-
-#if 1
-        {
-        /* Check value of esp to verify if we have enough rom for stack in Cache as RAM */
-        unsigned v_esp;
-        __asm__ volatile (
-                "movl   %%esp, %0\n\t"
-                : "=a" (v_esp)
-        );
-#if CONFIG_USE_INIT
-        printk_debug("v_esp=%08x\r\n", v_esp);
-#else           
-        print_debug("v_esp="); print_debug_hex32(v_esp); print_debug("\r\n");
-#endif    
-        }
-#endif
-
-#if 1
-
-
-cpu_reset_x:
-
-#if CONFIG_USE_INIT
-        printk_debug("cpu_reset = %08x\r\n",cpu_reset);
-#else
-        print_debug("cpu_reset = "); print_debug_hex32(cpu_reset); print_debug("\r\n");
-#endif
-
-	if(cpu_reset == 0) {
-	        print_debug("Clearing initial memory region: ");
-	}
-	print_debug("No cache as ram now - ");
-
-	/* store cpu_reset to ebx */
-        __asm__ volatile (
-                "movl %0, %%ebx\n\t"
-                ::"a" (cpu_reset)
-        );
-
-	if(cpu_reset==0) {
-#define CLEAR_FIRST_1M_RAM 1
-#include "cpu/amd/car/cache_as_ram_post.c"
-	}
-	else {
-#undef CLEAR_FIRST_1M_RAM 
-#include "cpu/amd/car/cache_as_ram_post.c"
-	}
-
-	__asm__ volatile (
-                /* set new esp */ /* before _RAMBASE */
-                "subl   %0, %%ebp\n\t"
-                "subl   %0, %%esp\n\t"
-                ::"a"( (DCACHE_RAM_BASE + DCACHE_RAM_SIZE)- _RAMBASE )
-	);
-
-	{
-		unsigned new_cpu_reset;
-
-		/* get back cpu_reset from ebx */
-		__asm__ volatile (
-			"movl %%ebx, %0\n\t"
-			:"=a" (new_cpu_reset)
-		);
-
-		print_debug("Use Ram as Stack now - "); /* but We can not go back any more, we lost old stack data in cache as ram*/
-		if(new_cpu_reset==0) {        
-		        print_debug("done\r\n");	
-		} else 
-		{	
-			print_debug("\r\n");
-		}
-
-#if CONFIG_USE_INIT
-                printk_debug("new_cpu_reset = %08x\r\n", new_cpu_reset);
-#else
-                print_debug("new_cpu_reset = "); print_debug_hex32(new_cpu_reset); print_debug("\r\n");
-#endif
-		/*copy and execute linuxbios_ram */
-		copy_and_run(new_cpu_reset);
-		/* We will not return */
-	}
-#endif
-
-
-	print_debug("should not be here -\r\n");
-
+	post_cache_as_ram(cpu_reset);
 }