amdfam10: Perform major include ".c" cleanup

Previously, all romstages for this northbridge family
would compile via 1 single C file with everything
included into the romstage.c file (!)

This patch separates the build into separate .o modules
and links them accordingly.

Currently compiles and links all fam10 roms without
breaking other roms.

Both DDR2 and DDR3 have been completed

TESTED on REACTS: passes all boot tests for 2 boards
 ASUS KGPE-D16
 ASUS KFSN4-DRE

Some extra changes were required to make it compile
otherwise there were unused functions in included "c" files.
This is because I needed to exchange CIMX
for the native southbridge routines. See in particular:
 advansus/a785e-i
 asus/m5a88-v
 avalue/eax-785e

A followup patch may be required to fix the above boards.
See FIXME, XXX tags

Change-Id: Id0f9849578fd0f8b1eab83aed910902c27354426
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/17625
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineering.com>
diff --git a/src/mainboard/supermicro/h8qme_fam10/romstage.c b/src/mainboard/supermicro/h8qme_fam10/romstage.c
index 25cf7d7..eedc9d0 100644
--- a/src/mainboard/supermicro/h8qme_fam10/romstage.c
+++ b/src/mainboard/supermicro/h8qme_fam10/romstage.c
@@ -30,47 +30,56 @@
 #include <lib.h>
 #include <spd.h>
 #include <cpu/amd/model_10xxx_rev.h>
-#include "southbridge/nvidia/mcp55/early_smbus.c" // for enable the FAN
-#include <northbridge/amd/amdfam10/raminit.h>
-#include <northbridge/amd/amdfam10/amdfam10.h>
 #include <delay.h>
 #include <cpu/x86/lapic.h>
-#include "northbridge/amd/amdfam10/reset_test.c"
 #include <superio/winbond/common/winbond.h>
 #include <superio/winbond/w83627hf/w83627hf.h>
 #include <cpu/x86/bist.h>
-#include "northbridge/amd/amdfam10/debug.c"
-#include "northbridge/amd/amdfam10/setup_resource_map.c"
+#include <cpu/amd/car.h>
+#include <northbridge/amd/amdfam10/raminit.h>
+#include <northbridge/amd/amdht/ht_wrapper.h>
+#include <cpu/amd/family_10h-family_15h/init_cpus.h>
+#include <arch/early_variables.h>
+#include <cbmem.h>
+#include "southbridge/nvidia/mcp55/early_smbus.c" // for enable the FAN
 #include "southbridge/nvidia/mcp55/early_ctrl.c"
 
+#include "resourcemap.c"
+#include "cpu/amd/quadcore/quadcore.c"
+#include <southbridge/nvidia/mcp55/early_setup_ss.h>
+#include "southbridge/nvidia/mcp55/early_setup_car.c"
+
 #define SERIAL_DEV PNP_DEV(0x2e, W83627HF_SP1)
 #define DUMMY_DEV PNP_DEV(0x2e, 0)
 
 #define SMBUS_SWITCH1 0x70
 #define SMBUS_SWITCH2 0x72
 
-static inline void activate_spd_rom(const struct mem_controller *ctrl)
+void activate_spd_rom(const struct mem_controller *ctrl);
+int spd_read_byte(unsigned device, unsigned address);
+extern struct sys_info sysinfo_car;
+
+inline void activate_spd_rom(const struct mem_controller *ctrl)
 {
 	smbus_send_byte(SMBUS_SWITCH1, 5 & 0x0f);
 	smbus_send_byte(SMBUS_SWITCH2, (5 >> 4) & 0x0f);
 }
 
-static inline int spd_read_byte(unsigned device, unsigned address)
+inline int spd_read_byte(unsigned device, unsigned address)
 {
 	return smbus_read_byte(device, address);
 }
 
-#include <northbridge/amd/amdfam10/amdfam10.h>
-#include "northbridge/amd/amdfam10/raminit_sysinfo_in_ram.c"
-#include "northbridge/amd/amdfam10/pci.c"
-#include "resourcemap.c"
-#include "cpu/amd/quadcore/quadcore.c"
-#include <southbridge/nvidia/mcp55/early_setup_ss.h>
-#include "southbridge/nvidia/mcp55/early_setup_car.c"
-#include <cpu/amd/microcode.h>
+unsigned get_sbdn(unsigned bus)
+{
+	pci_devfn_t dev;
 
-#include "cpu/amd/family_10h-family_15h/init_cpus.c"
-#include "northbridge/amd/amdfam10/early_ht.c"
+	/* Find the device. */
+	dev = pci_locate_device_on_bus(PCI_ID(PCI_VENDOR_ID_NVIDIA,
+				       PCI_DEVICE_ID_NVIDIA_MCP55_HT), bus);
+
+	return (dev >> 15) & 0x1f;
+}
 
 static void sio_setup(void)
 {