broadwell_fsp: Add intel FSP "driver" from coreboot.org

This is the unified FSP interface code from coreboot.org.  To present
a consistent interface with the FSPs for all of the different CPUs,
and to cut down on code maintenance, all of the FSPs use this
interface.

Bug=None
Test=Builds and runs on Broadwell

Change-Id: Idcca5c42b06c47c67946c706e424e0349405ddf0
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: https://chromium-review.googlesource.com/221182
Reviewed-by: Leroy P Leahy <leroy.p.leahy@intel.com>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Commit-Queue: Leroy P Leahy <leroy.p.leahy@intel.com>
Tested-by: Leroy P Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/229573
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>

src/include/cbmem.h

@@ -79,6 +79,7 @@
 #define CBMEM_ID_TIMESTAMP	0x54494d45
 #define CBMEM_ID_VBOOT_HANDOFF	0x780074f0
 #define CBMEM_ID_NONE		0x00000000
+#define CBMEM_ID_HOB_POINTER	0x484f4221
 
 #ifndef __ASSEMBLER__
 #include <stdint.h>

src/include/lib.h

@@ -21,6 +21,7 @@
 
 #ifndef __LIB_H__
 #define __LIB_H__
+#include <stddef.h>
 #include <stdint.h>
 
 #ifndef __PRE_RAM__ /* Conflicts with inline function in arch/io.h */
@@ -53,6 +54,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx);
 #endif
 
 /* Defined in src/lib/hexdump.c */
-void hexdump(unsigned long memory, int length);
+void hexdump(const void *memory, size_t length);
+void hexdump32(char LEVEL, const void *d, size_t len);
 
 #endif /* __LIB_H__ */

src/include/timestamp.h

@@ -47,12 +47,16 @@ enum timestamp_id {
 	TS_START_BOOTBLOCK = 11,
 	TS_END_BOOTBLOCK = 12,
 	TS_DEVICE_ENUMERATE = 30,
+	TS_FSP_BEFORE_ENUMERATE,
+	TS_FSP_AFTER_ENUMERATE,
 	TS_DEVICE_CONFIGURE = 40,
 	TS_DEVICE_ENABLE = 50,
 	TS_DEVICE_INITIALIZE = 60,
 	TS_DEVICE_DONE = 70,
 	TS_CBMEM_POST = 75,
 	TS_WRITE_TABLES = 80,
+	TS_FSP_BEFORE_FINALIZE,
+	TS_FSP_AFTER_FINALIZE,
 	TS_LOAD_PAYLOAD = 90,
 	TS_ACPI_WAKE_JUMP = 98,
 	TS_SELFBOOT_JUMP = 99,