fix up iwill board compilation. Untested, trivial

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2930 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

8 files changed, 822 insertions, 101 deletions

diff --git a/src/mainboard/iwill/dk8s2/Config.lb b/src/mainboard/iwill/dk8s2/Config.lb
index 230c2ac8ed..59312df508 100644
--- a/src/mainboard/iwill/dk8s2/Config.lb
+++ b/src/mainboard/iwill/dk8s2/Config.lb
@@ -50,6 +50,26 @@ if HAVE_PIRQ_TABLE object irq_tables.o end
 ## ATI Rage XL framebuffering graphics driver
 dir /drivers/ati/ragexl
 
+if USE_DCACHE_RAM
+
+if CONFIG_USE_INIT
+
+makerule ./auto.o
+        depends "$(MAINBOARD)/cache_as_ram_auto.c option_table.h"
+        action "$(CC) -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/cache_as_ram_auto.c -Os -nostdinc -nostdlib -fno-builtin -Wall -c -o auto.o" 
+end
+
+else    
+                
+makerule ./auto.inc
+        depends "$(MAINBOARD)/cache_as_ram_auto.c option_table.h"
+        action "$(CC) -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/cache_as_ram_auto.c -Os -nostdinc -nostdlib -fno-builtin -Wall -c -S -o $@"         
+        action "perl -e 's/.rodata/.rom.data/g' -pi $@"
+        action "perl -e 's/.text/.section .rom.text/g' -pi $@"
+end
+
+end
+else
 ##
 ## Romcc output
 ##
@@ -72,13 +92,27 @@ makerule ./auto.inc
 	action	"./romcc    -mcpu=k8 -O2 -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/auto.c -o $@"
 end
 
+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
-ldscript /cpu/x86/32bit/entry32.lds
+
+if USE_DCACHE_RAM
+        if CONFIG_USE_INIT
+                ldscript /cpu/x86/32bit/entry32.lds
+        end
+
+        if CONFIG_USE_INIT
+                ldscript      /cpu/amd/car/cache_as_ram.lds
+        end
+end
 
 ##
 ## Build our reset vector (This is where linuxBIOS is entered)
@@ -91,8 +125,11 @@ else
 	ldscript /cpu/x86/32bit/reset32.lds 
 end
 
+if USE_DCACHE_RAM
+else
 ### Should this be in the northbridge code?
 mainboardinit arch/i386/lib/cpu_reset.inc
+end
 
 ##
 ## Include an id string (For safe flashing)
@@ -100,14 +137,25 @@ mainboardinit arch/i386/lib/cpu_reset.inc
 mainboardinit arch/i386/lib/id.inc
 ldscript /arch/i386/lib/id.lds
 
+if USE_DCACHE_RAM
+##
+## Setup Cache-As-Ram
+##
+mainboardinit cpu/amd/car/cache_as_ram.inc
+end
+
 ###
 ### This is the early phase of linuxBIOS startup 
 ### Things are delicate and we test to see if we should
 ### failover to another image.
 ###
 if USE_FALLBACK_IMAGE
-	ldscript /arch/i386/lib/failover.lds 
-	mainboardinit ./failover.inc
+if USE_DCACHE_RAM
+       ldscript /arch/i386/lib/failover.lds
+else
+       ldscript /arch/i386/lib/failover.lds
+        mainboardinit ./failover.inc
+end
 end
 
 ###
@@ -117,17 +165,30 @@ end
 ##
 ## Setup RAM
 ##
+if USE_DCACHE_RAM
+
+if CONFIG_USE_INIT
+initobject auto.o
+else
+mainboardinit ./auto.inc
+end
+
+else
+
+##
+## Setup RAM
+##
 mainboardinit cpu/x86/fpu/enable_fpu.inc
 mainboardinit cpu/x86/mmx/enable_mmx.inc
 mainboardinit cpu/x86/sse/enable_sse.inc
 mainboardinit ./auto.inc
 mainboardinit cpu/x86/sse/disable_sse.inc
 mainboardinit cpu/x86/mmx/disable_mmx.inc
+end
 
 ##
 ## Include the secondary Configuration files 
 ##
-dir /pc80
 config chip.h
 
 # config for iwill/dk8s2
diff --git a/src/mainboard/iwill/dk8s2/Options.lb b/src/mainboard/iwill/dk8s2/Options.lb
index 74864e5381..049074f6c7 100644
--- a/src/mainboard/iwill/dk8s2/Options.lb
+++ b/src/mainboard/iwill/dk8s2/Options.lb
@@ -48,7 +48,9 @@ uses CROSS_COMPILE
 uses CC
 uses HOSTCC
 uses OBJCOPY
-
+uses USE_DCACHE_RAM
+uses DCACHE_RAM_BASE
+uses DCACHE_RAM_SIZE
 uses CONFIG_USE_INIT
 
 ## ROM_SIZE is the size of boot ROM that this board will use.
@@ -111,6 +113,14 @@ default CONFIG_MAX_PHYSICAL_CPUS=2
 default CONFIG_IOAPIC=1
 
 ##
+## enable CACHE_AS_RAM specifics
+##
+default USE_DCACHE_RAM=1
+default DCACHE_RAM_BASE=0xcf000
+default DCACHE_RAM_SIZE=0x1000
+default CONFIG_USE_INIT=0
+ 
+##
 ## Clean up the motherboard id strings
 ##
 default MAINBOARD_PART_NUMBER="HDAMA"
diff --git a/src/mainboard/iwill/dk8s2/auto.c b/src/mainboard/iwill/dk8s2/auto.c
index 06b3e42cdf..a78b34f9f2 100644
--- a/src/mainboard/iwill/dk8s2/auto.c
+++ b/src/mainboard/iwill/dk8s2/auto.c
@@ -69,49 +69,6 @@ static void memreset(int controllers, const struct mem_controller *ctrl)
 	}
 }
 
-static unsigned int generate_row(uint8_t node, uint8_t row, uint8_t maxnodes)
-{
-	/* Routing Table Node i 
-	 *
-	 * F0: 0x40, 0x44, 0x48, 0x4c, 0x50, 0x54, 0x58, 0x5c 
-	 *  i:	  0,	1,    2,    3,	  4,	5,    6,    7
-	 *
-	 * [ 0: 3] Request Route
-	 *     [0] Route to this node
-	 *     [1] Route to Link 0
-	 *     [2] Route to Link 1
-	 *     [3] Route to Link 2
-	 * [11: 8] Response Route
-	 *     [0] Route to this node
-	 *     [1] Route to Link 0
-	 *     [2] Route to Link 1
-	 *     [3] Route to Link 2
-	 * [19:16] Broadcast route
-	 *     [0] Route to this node
-	 *     [1] Route to Link 0
-	 *     [2] Route to Link 1
-	 *     [3] Route to Link 2
-	 */
-
-	uint32_t ret=0x00010101; /* default row entry */
-
-	static const unsigned int rows_2p[2][2] = {
-		{ 0x00050101, 0x00010404 },
-		{ 0x00010404, 0x00050101 }
-	};
-
-	if(maxnodes>2) {
-		print_debug("this mainboard is only designed for 2 cpus\r\n");
-		maxnodes=2;
-	}
-
-	if (!(node>=maxnodes || row>=maxnodes)) {
-		ret=rows_2p[node][row];
-	}
-
-	return ret;
-}
-
 static inline void activate_spd_rom(const struct mem_controller *ctrl)
 {
 	/* nothing to do */
diff --git a/src/mainboard/iwill/dk8s2/cache_as_ram_auto.c b/src/mainboard/iwill/dk8s2/cache_as_ram_auto.c
new file mode 100644
index 0000000000..a9d66e1ba7
--- /dev/null
+++ b/src/mainboard/iwill/dk8s2/cache_as_ram_auto.c
@@ -0,0 +1,333 @@
+#define ASSEMBLY 1
+#define __ROMCC__
+
+#define RAMINIT_SYSINFO 1
+#define CACHE_AS_RAM_ADDRESS_DEBUG 0
+
+#define SET_NB_CFG_54 1 
+
+//used by raminit
+#define QRANK_DIMM_SUPPORT 1
+
+//used by incoherent_ht
+//#define K8_SCAN_PCI_BUS 1
+//#define K8_ALLOCATE_IO_RANGE 1
+
+
+//used by init_cpus and fidvid
+#define K8_SET_FIDVID 0
+//if we want to wait for core1 done before DQS training, set it to 0
+#define K8_SET_FIDVID_CORE0_ONLY 1
+
+#if K8_REV_F_SUPPORT == 1
+#define K8_REV_F_SUPPORT_F0_F1_WORKAROUND 0
+#endif
+
+#include <stdint.h>
+#include <device/pci_def.h>
+#include <device/pci_ids.h>
+#include <arch/io.h>
+#include <device/pnp_def.h>
+#include <arch/romcc_io.h>
+#include <cpu/x86/lapic.h>
+#include "option_table.h"
+#include "pc80/mc146818rtc_early.c"
+
+#if USE_FAILOVER_IMAGE==0
+#include "pc80/serial.c"
+#include "arch/i386/lib/console.c"
+#include <cpu/amd/model_fxx_rev.h>
+#include "southbridge/amd/amd8111/amd8111_early_smbus.c"
+#include "northbridge/amd/amdk8/raminit.h"
+#include "cpu/amd/model_fxx/apic_timer.c"
+#endif
+
+
+
+#include "cpu/x86/lapic/boot_cpu.c"
+#include "northbridge/amd/amdk8/reset_test.c"
+
+#if USE_FAILOVER_IMAGE==0
+#include "cpu/x86/bist.h"
+
+#include "lib/delay.c"
+
+#if CONFIG_USE_INIT == 0
+	#include "lib/memcpy.c"
+ // TODO: This doesn't compile at the moment. Fix later.
+ // #if CONFIG_USE_PRINTK_IN_CAR == 1
+ //        #include "lib/uart8250.c"
+ //        #include "console/vtxprintf.c"
+ //        #include "arch/i386/lib/printk_init.c"
+ // #endif
+#endif
+#include "northbridge/amd/amdk8/debug.c"
+#include "cpu/amd/mtrr/amd_earlymtrr.c"
+#include "superio/winbond/w83627hf/w83627hf_early_serial.c"
+
+#include "northbridge/amd/amdk8/setup_resource_map.c"
+
+#define SERIAL_DEV PNP_DEV(0x2e, W83627HF_SP1)
+
+#include "southbridge/amd/amd8111/amd8111_early_ctrl.c"
+
+/*
+ * GPIO28 of 8111 will control H0_MEMRESET_L
+ * GPIO29 of 8111 will control H1_MEMRESET_L
+ */
+static void memreset_setup(void)
+{
+	if (is_cpu_pre_c0()) {
+		/* Set the memreset low */
+		outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(0<<0), SMBUS_IO_BASE + 0xc0 + 28);
+		/* Ensure the BIOS has control of the memory lines */
+		outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(0<<0), SMBUS_IO_BASE + 0xc0 + 29);
+	} else {
+		/* Ensure the CPU has controll of the memory lines */
+		outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(1<<0), SMBUS_IO_BASE + 0xc0 + 29);
+	}
+}
+
+static void memreset(int controllers, const struct mem_controller *ctrl)
+{
+	if (is_cpu_pre_c0()) {
+		udelay(800);
+		/* Set memreset_high */
+		outb((0<<7)|(0<<6)|(0<<5)|(0<<4)|(1<<2)|(1<<0), SMBUS_IO_BASE + 0xc0 + 28);
+		udelay(90);
+	}
+}
+
+static inline void activate_spd_rom(const struct mem_controller *ctrl)
+{
+}
+
+static inline int spd_read_byte(unsigned device, unsigned address)
+{
+        return smbus_read_byte(device, address);
+}
+
+#include "northbridge/amd/amdk8/amdk8.h"
+#include "northbridge/amd/amdk8/coherent_ht_car.c"
+
+#include "northbridge/amd/amdk8/incoherent_ht.c"
+
+#include "northbridge/amd/amdk8/raminit.c"
+
+#include "sdram/generic_sdram.c"
+#include "ram/ramtest.c"
+
+ /* tyan does not want the default */
+#include "northbridge/amd/amdk8/resourcemap.c"
+
+#include "cpu/amd/dualcore/dualcore.c"
+
+#define DIMM0 0x50
+#define DIMM1 0x51
+#define DIMM2 0x52
+#define DIMM3 0x53
+#define DIMM4 0x54
+#define DIMM5 0x55
+#define DIMM6 0x56
+#define DIMM7 0x57
+
+
+#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"
+
+#include "cpu/amd/model_fxx/fidvid.c"
+#endif
+
+#if ((HAVE_FAILOVER_BOOT==1) && (USE_FAILOVER_IMAGE == 1)) || ((HAVE_FAILOVER_BOOT==0) && (USE_FALLBACK_IMAGE == 1))
+
+#include "southbridge/amd/amd8111/amd8111_enable_rom.c"
+#include "northbridge/amd/amdk8/early_ht.c"
+
+void failover_process(unsigned long bist, unsigned long cpu_init_detectedx)
+{
+
+	unsigned last_boot_normal_x = 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;
+                }
+        }
+
+        /* Nothing special needs to be done to find bus 0 */
+        /* Allow the HT devices to be found */
+
+        enumerate_ht_chain();
+
+        /* Setup the rom access for 4M */
+        amd8111_enable_rom();
+
+        /* Is this a deliberate reset by the bios */
+        if (bios_reset_detected() && last_boot_normal_x) {
+                goto normal_image;
+        }
+        /* This is the primary cpu how should I boot? */
+        else if (do_normal_boot()) {
+                goto normal_image;
+        }
+        else {
+                goto fallback_image;
+        }
+ normal_image:
+        __asm__ volatile ("jmp __normal_image"
+                : /* outputs */
+                : "a" (bist), "b" (cpu_init_detectedx) /* inputs */
+                );
+
+ fallback_image:
+#if HAVE_FAILOVER_BOOT==1
+        __asm__ volatile ("jmp __fallback_image"
+                : /* outputs */
+                : "a" (bist), "b" (cpu_init_detectedx) /* inputs */
+                )
+#endif
+	;
+}
+#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 HAVE_FAILOVER_BOOT==1 
+    #if USE_FAILOVER_IMAGE==1
+	failover_process(bist, cpu_init_detectedx);	
+    #else
+	real_main(bist, cpu_init_detectedx);
+    #endif
+#else
+    #if USE_FALLBACK_IMAGE == 1
+	failover_process(bist, cpu_init_detectedx);	
+    #endif
+	real_main(bist, cpu_init_detectedx);
+#endif
+}
+
+#if USE_FAILOVER_IMAGE==0
+
+void real_main(unsigned long bist, unsigned long cpu_init_detectedx)
+{
+	static const uint16_t spd_addr[] = {
+			//first node
+                        DIMM0, DIMM2, 0, 0,
+                        DIMM1, DIMM3, 0, 0,
+#if CONFIG_MAX_PHYSICAL_CPUS > 1
+			//second node
+                        DIMM4, DIMM6, 0, 0,
+                        DIMM5, DIMM7, 0, 0,
+#endif
+
+	};
+
+	struct sys_info *sysinfo = (DCACHE_RAM_BASE + DCACHE_RAM_SIZE - DCACHE_RAM_GLOBAL_VAR_SIZE);
+
+        int needs_reset; int i;
+        unsigned bsp_apicid = 0;
+
+        if (bist == 0) {
+		bsp_apicid = init_cpus(cpu_init_detectedx, sysinfo);
+        }
+
+ 	w83627hf_enable_serial(SERIAL_DEV, TTYS0_BASE);
+        uart_init();
+        console_init();
+
+	/* Halt if there was a built in self test failure */
+	report_bist_failure(bist);
+
+        print_debug("*sysinfo range: ["); print_debug_hex32(sysinfo); print_debug(",");  print_debug_hex32((unsigned long)sysinfo+sizeof(struct sys_info)); print_debug(")\r\n");
+
+        setup_default_resource_map();
+
+	print_debug("bsp_apicid="); print_debug_hex8(bsp_apicid); print_debug("\r\n");
+
+#if MEM_TRAIN_SEQ == 1
+        set_sysinfo_in_ram(0); // in BSP so could hold all ap until sysinfo is in ram 
+#endif
+	setup_coherent_ht_domain(); // routing table and start other core0
+
+	wait_all_core0_started();
+#if CONFIG_LOGICAL_CPUS==1
+        // It is said that we should start core1 after all core0 launched
+	/* becase optimize_link_coherent_ht is moved out from setup_coherent_ht_domain, 
+	 * So here need to make sure last core0 is started, esp for two way system,
+	 * (there may be apic id conflicts in that case) 
+	 */
+        start_other_cores();
+	wait_all_other_cores_started(bsp_apicid);
+#endif
+	
+	/* it will set up chains and store link pair for optimization later */
+        ht_setup_chains_x(sysinfo); // it will init sblnk and sbbusn, nodes, sbdn
+
+
+#if K8_SET_FIDVID == 1
+
+        {
+                msr_t msr;
+	        msr=rdmsr(0xc0010042);
+                print_debug("begin msr fid, vid "); print_debug_hex32( msr.hi ); print_debug_hex32(msr.lo); print_debug("\r\n");
+
+        }
+
+	enable_fid_change();
+
+	enable_fid_change_on_sb(sysinfo->sbbusn, sysinfo->sbdn);
+
+        init_fidvid_bsp(bsp_apicid);
+
+        // show final fid and vid
+        {
+                msr_t msr;
+               	msr=rdmsr(0xc0010042);
+               	print_debug("end   msr fid, vid "); print_debug_hex32( msr.hi ); print_debug_hex32(msr.lo); print_debug("\r\n"); 
+
+        }
+#endif
+
+	needs_reset = optimize_link_coherent_ht();
+	needs_reset |= optimize_link_incoherent_ht(sysinfo);
+
+        // fidvid change will issue one LDTSTOP and the HT change will be effective too
+        if (needs_reset) {
+                print_info("ht reset -\r\n");
+                soft_reset_x(sysinfo->sbbusn, sysinfo->sbdn);
+        }
+
+	allow_all_aps_stop(bsp_apicid);
+
+        //It's the time to set ctrl in sysinfo now;
+	fill_mem_ctrl(sysinfo->nodes, sysinfo->ctrl, spd_addr);
+
+	enable_smbus();
+
+#if 0
+	dump_smbus_registers();
+#endif
+
+	memreset_setup();
+
+	//do we need apci timer, tsc...., only debug need it for better output
+        /* all ap stopped? */
+        init_timer(); // Need to use TMICT to synconize FID/VID
+	sdram_initialize(sysinfo->nodes, sysinfo->ctrl, sysinfo);
+
+
+#if 0
+        dump_pci_devices();
+#endif
+
+        post_cache_as_ram(); // bsp swtich stack to ram and copy sysinfo ram now
+
+}
+#endif
diff --git a/src/mainboard/iwill/dk8x/Config.lb b/src/mainboard/iwill/dk8x/Config.lb
index e72046353e..30f7c3ce50 100644
--- a/src/mainboard/iwill/dk8x/Config.lb
+++ b/src/mainboard/iwill/dk8x/Config.lb
@@ -47,6 +47,26 @@ if HAVE_MP_TABLE object mptable.o end
 if HAVE_PIRQ_TABLE object irq_tables.o end
 #object reset.o
 
+if USE_DCACHE_RAM
+
+if CONFIG_USE_INIT
+
+makerule ./auto.o
+        depends "$(MAINBOARD)/cache_as_ram_auto.c option_table.h"
+        action "$(CC) -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/cache_as_ram_auto.c -Os -nostdinc -nostdlib -fno-builtin -Wall -c -o auto.o" 
+end
+
+else    
+                
+makerule ./auto.inc
+        depends "$(MAINBOARD)/cache_as_ram_auto.c option_table.h"
+        action "$(CC) -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/cache_as_ram_auto.c -Os -nostdinc -nostdlib -fno-builtin -Wall -c -S -o $@"         
+        action "perl -e 's/.rodata/.rom.data/g' -pi $@"
+        action "perl -e 's/.text/.section .rom.text/g' -pi $@"
+end
+
+end
+else
 ##
 ## Romcc output
 ##
@@ -69,13 +89,27 @@ makerule ./auto.inc
 	action	"./romcc    -mcpu=k8 -O2 -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/auto.c -o $@"
 end
 
+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
-ldscript /cpu/x86/32bit/entry32.lds
+
+if USE_DCACHE_RAM
+        if CONFIG_USE_INIT
+                ldscript /cpu/x86/32bit/entry32.lds
+        end
+
+        if CONFIG_USE_INIT
+                ldscript      /cpu/amd/car/cache_as_ram.lds
+        end
+end
 
 ##
 ## Build our reset vector (This is where linuxBIOS is entered)
@@ -88,8 +122,11 @@ else
 	ldscript /cpu/x86/32bit/reset32.lds 
 end
 
+if USE_DCACHE_RAM
+else
 ### Should this be in the northbridge code?
 mainboardinit arch/i386/lib/cpu_reset.inc
+end
 
 ##
 ## Include an id string (For safe flashing)
@@ -97,14 +134,25 @@ mainboardinit arch/i386/lib/cpu_reset.inc
 mainboardinit arch/i386/lib/id.inc
 ldscript /arch/i386/lib/id.lds
 
+if USE_DCACHE_RAM
+##
+## Setup Cache-As-Ram
+##
+mainboardinit cpu/amd/car/cache_as_ram.inc
+end
+
 ###
 ### This is the early phase of linuxBIOS startup 
 ### Things are delicate and we test to see if we should
 ### failover to another image.
 ###
 if USE_FALLBACK_IMAGE
-	ldscript /arch/i386/lib/failover.lds 
-	mainboardinit ./failover.inc
+if USE_DCACHE_RAM
+       ldscript /arch/i386/lib/failover.lds
+else
+       ldscript /arch/i386/lib/failover.lds
+        mainboardinit ./failover.inc
+end
 end
 
 ###
@@ -114,17 +162,30 @@ end
 ##
 ## Setup RAM
 ##
+if USE_DCACHE_RAM
+
+if CONFIG_USE_INIT
+initobject auto.o
+else
+mainboardinit ./auto.inc
+end
+
+else
+
+##
+## Setup RAM
+##
 mainboardinit cpu/x86/fpu/enable_fpu.inc
 mainboardinit cpu/x86/mmx/enable_mmx.inc
 mainboardinit cpu/x86/sse/enable_sse.inc
 mainboardinit ./auto.inc
 mainboardinit cpu/x86/sse/disable_sse.inc
 mainboardinit cpu/x86/mmx/disable_mmx.inc
+end
 
 ##
 ## Include the secondary Configuration files 
 ##
-dir /pc80
 config chip.h
 
 chip northbridge/amd/amdk8/root_complex
diff --git a/src/mainboard/iwill/dk8x/Options.lb b/src/mainboard/iwill/dk8x/Options.lb
index 60e2075556..0ee152b381 100644
--- a/src/mainboard/iwill/dk8x/Options.lb
+++ b/src/mainboard/iwill/dk8x/Options.lb
@@ -48,7 +48,9 @@ uses CROSS_COMPILE
 uses CC
 uses HOSTCC
 uses OBJCOPY
-
+uses USE_DCACHE_RAM
+uses DCACHE_RAM_BASE
+uses DCACHE_RAM_SIZE
 uses CONFIG_USE_INIT
 
 ## ROM_SIZE is the size of boot ROM that this board will use.
@@ -111,6 +113,14 @@ default CONFIG_MAX_PHYSICAL_CPUS=2
 default CONFIG_IOAPIC=1
 
 ##
+## enable CACHE_AS_RAM specifics
+##
+default USE_DCACHE_RAM=1
+default DCACHE_RAM_BASE=0xcf000
+default DCACHE_RAM_SIZE=0x1000
+default CONFIG_USE_INIT=0
+ 
+##
 ## Clean up the motherboard id strings
 ##
 #default MAINBOARD_PART_NUMBER="HDAMA"
diff --git a/src/mainboard/iwill/dk8x/auto.c b/src/mainboard/iwill/dk8x/auto.c
index 150d7a063e..4cdf57716e 100644
--- a/src/mainboard/iwill/dk8x/auto.c
+++ b/src/mainboard/iwill/dk8x/auto.c
@@ -70,50 +70,6 @@ static void memreset(int controllers, const struct mem_controller *ctrl)
 	}
 }
 
-static unsigned int generate_row(uint8_t node, uint8_t row, uint8_t maxnodes)
-{
-	/* Routing Table Node i 
-	 *
-	 * F0: 0x40, 0x44, 0x48, 0x4c, 0x50, 0x54, 0x58, 0x5c 
-	 *  i:    0,    1,    2,    3,    4,    5,    6,    7
-	 *
-	 * [ 0: 3] Request Route
-	 *     [0] Route to this node
-	 *     [1] Route to Link 0
-	 *     [2] Route to Link 1
-	 *     [3] Route to Link 2
-	 * [11: 8] Response Route
-	 *     [0] Route to this node
-	 *     [1] Route to Link 0
-	 *     [2] Route to Link 1
-	 *     [3] Route to Link 2
-	 * [19:16] Broadcast route
-	 *     [0] Route to this node
-	 *     [1] Route to Link 0
-	 *     [2] Route to Link 1
-	 *     [3] Route to Link 2
-	 */
-
-	uint32_t ret=0x00010101; /* default row entry */
-
-	static const unsigned int rows_2p[2][2] = {
-		{ 0x00050101, 0x00010404 },
-		{ 0x00010404, 0x00050101 }
-	};
-
-	if(maxnodes>2) {
-		print_debug("this mainboard is only designed for 2 cpus\r\n");
-		maxnodes=2;
-	}
-
-
-	if (!(node>=maxnodes || row>=maxnodes)) {
-		ret=rows_2p[node][row];
-	}
-
-	return ret;
-}
-
 static inline void activate_spd_rom(const struct mem_controller *ctrl)
 {
 	/* nothing to do */
diff --git a/src/mainboard/iwill/dk8x/cache_as_ram_auto.c b/src/mainboard/iwill/dk8x/cache_as_ram_auto.c
new file mode 100644
index 0000000000..a9d66e1ba7
--- /dev/null
+++ b/src/mainboard/iwill/dk8x/cache_as_ram_auto.c
@@ -0,0 +1,333 @@
+#define ASSEMBLY 1
+#define __ROMCC__
+
+#define RAMINIT_SYSINFO 1
+#define CACHE_AS_RAM_ADDRESS_DEBUG 0
+
+#define SET_NB_CFG_54 1 
+
+//used by raminit
+#define QRANK_DIMM_SUPPORT 1
+
+//used by incoherent_ht
+//#define K8_SCAN_PCI_BUS 1
+//#define K8_ALLOCATE_IO_RANGE 1
+
+
+//used by init_cpus and fidvid
+#define K8_SET_FIDVID 0
+//if we want to wait for core1 done before DQS training, set it to 0
+#define K8_SET_FIDVID_CORE0_ONLY 1
+
+#if K8_REV_F_SUPPORT == 1
+#define K8_REV_F_SUPPORT_F0_F1_WORKAROUND 0
+#endif
+
+#include <stdint.h>
+#include <device/pci_def.h>
+#include <device/pci_ids.h>
+#include <arch/io.h>
+#include <device/pnp_def.h>
+#include <arch/romcc_io.h>
+#include <cpu/x86/lapic.h>
+#include "option_table.h"
+#include "pc80/mc146818rtc_early.c"
+
+#if USE_FAILOVER_IMAGE==0
+#include "pc80/serial.c"
+#include "arch/i386/lib/console.c"
+#include <cpu/amd/model_fxx_rev.h>
+#include "southbridge/amd/amd8111/amd8111_early_smbus.c"
+#include "northbridge/amd/amdk8/raminit.h"
+#include "cpu/amd/model_fxx/apic_timer.c"
+#endif
+
+
+
+#include "cpu/x86/lapic/boot_cpu.c"
+#include "northbridge/amd/amdk8/reset_test.c"
+
+#if USE_FAILOVER_IMAGE==0
+#include "cpu/x86/bist.h"
+
+#include "lib/delay.c"
+
+#if CONFIG_USE_INIT == 0
+	#include "lib/memcpy.c"
+ // TODO: This doesn't compile at the moment. Fix later.
+ // #if CONFIG_USE_PRINTK_IN_CAR == 1
+ //        #include "lib/uart8250.c"
+ //        #include "console/vtxprintf.c"
+ //        #include "arch/i386/lib/printk_init.c"
+ // #endif
+#endif
+#include "northbridge/amd/amdk8/debug.c"
+#include "cpu/amd/mtrr/amd_earlymtrr.c"
+#include "superio/winbond/w83627hf/w83627hf_early_serial.c"
+
+#include "northbridge/amd/amdk8/setup_resource_map.c"
+
+#define SERIAL_DEV PNP_DEV(0x2e, W83627HF_SP1)
+
+#include "southbridge/amd/amd8111/amd8111_early_ctrl.c"
+
+/*
+ * GPIO28 of 8111 will control H0_MEMRESET_L
+ * GPIO29 of 8111 will control H1_MEMRESET_L
+ */
+static void memreset_setup(void)
+{
+	if (is_cpu_pre_c0()) {
+		/* Set the memreset low */
+		outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(0<<0), SMBUS_IO_BASE + 0xc0 + 28);
+		/* Ensure the BIOS has control of the memory lines */
+		outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(0<<0), SMBUS_IO_BASE + 0xc0 + 29);
+	} else {
+		/* Ensure the CPU has controll of the memory lines */
+		outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(1<<0), SMBUS_IO_BASE + 0xc0 + 29);
+	}
+}
+
+static void memreset(int controllers, const struct mem_controller *ctrl)
+{
+	if (is_cpu_pre_c0()) {
+		udelay(800);
+		/* Set memreset_high */
+		outb((0<<7)|(0<<6)|(0<<5)|(0<<4)|(1<<2)|(1<<0), SMBUS_IO_BASE + 0xc0 + 28);
+		udelay(90);
+	}
+}
+
+static inline void activate_spd_rom(const struct mem_controller *ctrl)
+{
+}
+
+static inline int spd_read_byte(unsigned device, unsigned address)
+{
+        return smbus_read_byte(device, address);
+}
+
+#include "northbridge/amd/amdk8/amdk8.h"
+#include "northbridge/amd/amdk8/coherent_ht_car.c"
+
+#include "northbridge/amd/amdk8/incoherent_ht.c"
+
+#include "northbridge/amd/amdk8/raminit.c"
+
+#include "sdram/generic_sdram.c"
+#include "ram/ramtest.c"
+
+ /* tyan does not want the default */
+#include "northbridge/amd/amdk8/resourcemap.c"
+
+#include "cpu/amd/dualcore/dualcore.c"
+
+#define DIMM0 0x50
+#define DIMM1 0x51
+#define DIMM2 0x52
+#define DIMM3 0x53
+#define DIMM4 0x54
+#define DIMM5 0x55
+#define DIMM6 0x56
+#define DIMM7 0x57
+
+
+#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"
+
+#include "cpu/amd/model_fxx/fidvid.c"
+#endif
+
+#if ((HAVE_FAILOVER_BOOT==1) && (USE_FAILOVER_IMAGE == 1)) || ((HAVE_FAILOVER_BOOT==0) && (USE_FALLBACK_IMAGE == 1))
+
+#include "southbridge/amd/amd8111/amd8111_enable_rom.c"
+#include "northbridge/amd/amdk8/early_ht.c"
+
+void failover_process(unsigned long bist, unsigned long cpu_init_detectedx)
+{
+
+	unsigned last_boot_normal_x = 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;
+                }
+        }
+
+        /* Nothing special needs to be done to find bus 0 */
+        /* Allow the HT devices to be found */
+
+        enumerate_ht_chain();
+
+        /* Setup the rom access for 4M */
+        amd8111_enable_rom();
+
+        /* Is this a deliberate reset by the bios */
+        if (bios_reset_detected() && last_boot_normal_x) {
+                goto normal_image;
+        }
+        /* This is the primary cpu how should I boot? */
+        else if (do_normal_boot()) {
+                goto normal_image;
+        }
+        else {
+                goto fallback_image;
+        }
+ normal_image:
+        __asm__ volatile ("jmp __normal_image"
+                : /* outputs */
+                : "a" (bist), "b" (cpu_init_detectedx) /* inputs */
+                );
+
+ fallback_image:
+#if HAVE_FAILOVER_BOOT==1
+        __asm__ volatile ("jmp __fallback_image"
+                : /* outputs */
+                : "a" (bist), "b" (cpu_init_detectedx) /* inputs */
+                )
+#endif
+	;
+}
+#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 HAVE_FAILOVER_BOOT==1 
+    #if USE_FAILOVER_IMAGE==1
+	failover_process(bist, cpu_init_detectedx);	
+    #else
+	real_main(bist, cpu_init_detectedx);
+    #endif
+#else
+    #if USE_FALLBACK_IMAGE == 1
+	failover_process(bist, cpu_init_detectedx);	
+    #endif
+	real_main(bist, cpu_init_detectedx);
+#endif
+}
+
+#if USE_FAILOVER_IMAGE==0
+
+void real_main(unsigned long bist, unsigned long cpu_init_detectedx)
+{
+	static const uint16_t spd_addr[] = {
+			//first node
+                        DIMM0, DIMM2, 0, 0,
+                        DIMM1, DIMM3, 0, 0,
+#if CONFIG_MAX_PHYSICAL_CPUS > 1
+			//second node
+                        DIMM4, DIMM6, 0, 0,
+                        DIMM5, DIMM7, 0, 0,
+#endif
+
+	};
+
+	struct sys_info *sysinfo = (DCACHE_RAM_BASE + DCACHE_RAM_SIZE - DCACHE_RAM_GLOBAL_VAR_SIZE);
+
+        int needs_reset; int i;
+        unsigned bsp_apicid = 0;
+
+        if (bist == 0) {
+		bsp_apicid = init_cpus(cpu_init_detectedx, sysinfo);
+        }
+
+ 	w83627hf_enable_serial(SERIAL_DEV, TTYS0_BASE);
+        uart_init();
+        console_init();
+
+	/* Halt if there was a built in self test failure */
+	report_bist_failure(bist);
+
+        print_debug("*sysinfo range: ["); print_debug_hex32(sysinfo); print_debug(",");  print_debug_hex32((unsigned long)sysinfo+sizeof(struct sys_info)); print_debug(")\r\n");
+
+        setup_default_resource_map();
+
+	print_debug("bsp_apicid="); print_debug_hex8(bsp_apicid); print_debug("\r\n");
+
+#if MEM_TRAIN_SEQ == 1
+        set_sysinfo_in_ram(0); // in BSP so could hold all ap until sysinfo is in ram 
+#endif
+	setup_coherent_ht_domain(); // routing table and start other core0
+
+	wait_all_core0_started();
+#if CONFIG_LOGICAL_CPUS==1
+        // It is said that we should start core1 after all core0 launched
+	/* becase optimize_link_coherent_ht is moved out from setup_coherent_ht_domain, 
+	 * So here need to make sure last core0 is started, esp for two way system,
+	 * (there may be apic id conflicts in that case) 
+	 */
+        start_other_cores();
+	wait_all_other_cores_started(bsp_apicid);
+#endif
+	
+	/* it will set up chains and store link pair for optimization later */
+        ht_setup_chains_x(sysinfo); // it will init sblnk and sbbusn, nodes, sbdn
+
+
+#if K8_SET_FIDVID == 1
+
+        {
+                msr_t msr;
+	        msr=rdmsr(0xc0010042);
+                print_debug("begin msr fid, vid "); print_debug_hex32( msr.hi ); print_debug_hex32(msr.lo); print_debug("\r\n");
+
+        }
+
+	enable_fid_change();
+
+	enable_fid_change_on_sb(sysinfo->sbbusn, sysinfo->sbdn);
+
+        init_fidvid_bsp(bsp_apicid);
+
+        // show final fid and vid
+        {
+                msr_t msr;
+               	msr=rdmsr(0xc0010042);
+               	print_debug("end   msr fid, vid "); print_debug_hex32( msr.hi ); print_debug_hex32(msr.lo); print_debug("\r\n"); 
+
+        }
+#endif
+
+	needs_reset = optimize_link_coherent_ht();
+	needs_reset |= optimize_link_incoherent_ht(sysinfo);
+
+        // fidvid change will issue one LDTSTOP and the HT change will be effective too
+        if (needs_reset) {
+                print_info("ht reset -\r\n");
+                soft_reset_x(sysinfo->sbbusn, sysinfo->sbdn);
+        }
+
+	allow_all_aps_stop(bsp_apicid);
+
+        //It's the time to set ctrl in sysinfo now;
+	fill_mem_ctrl(sysinfo->nodes, sysinfo->ctrl, spd_addr);
+
+	enable_smbus();
+
+#if 0
+	dump_smbus_registers();
+#endif
+
+	memreset_setup();
+
+	//do we need apci timer, tsc...., only debug need it for better output
+        /* all ap stopped? */
+        init_timer(); // Need to use TMICT to synconize FID/VID
+	sdram_initialize(sysinfo->nodes, sysinfo->ctrl, sysinfo);
+
+
+#if 0
+        dump_pci_devices();
+#endif
+
+        post_cache_as_ram(); // bsp swtich stack to ram and copy sysinfo ram now
+
+}
+#endif