Intel: Add common header file for CAR setup

When passing '-ffreestanding' the 'main' romstage.c may no longer
necessarily be considered the entry point.

From the C specification in 5.1.2.1 Freestanding environment;

"In a freestanding environment (in which C program execution may take
place without any benefit of an operating system), the name and type of
the function called at program startup are implementation-defined."

Clang complains about these being missing as Clang is somewhat more
strict about the spec than GNU/GCC is. An advantage here is that a
different entry-point type-signature shall now be warned about at
compile time.

Change-Id: I467001adabd47958c30c9a15e3248e42ed1151f3
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5872
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

6 files changed, 6 insertions, 0 deletions

diff --git a/src/mainboard/supermicro/x6dai_g/romstage.c b/src/mainboard/supermicro/x6dai_g/romstage.c
index c998466c39..6b10a68eb5 100644
--- a/src/mainboard/supermicro/x6dai_g/romstage.c
+++ b/src/mainboard/supermicro/x6dai_g/romstage.c
@@ -42,6 +42,7 @@ static inline int spd_read_byte(unsigned device, unsigned address)
 #include "lib/generic_sdram.c"
 #include "arch/x86/lib/stages.c"
 
+#include <cpu/intel/car.h>
 static void main(unsigned long bist)
 {
 	static const struct mem_controller mch[] = {
diff --git a/src/mainboard/supermicro/x6dhe_g/romstage.c b/src/mainboard/supermicro/x6dhe_g/romstage.c
index b1c3cfa998..9a637be7ab 100644
--- a/src/mainboard/supermicro/x6dhe_g/romstage.c
+++ b/src/mainboard/supermicro/x6dhe_g/romstage.c
@@ -46,6 +46,7 @@ static inline int spd_read_byte(unsigned device, unsigned address)
 #include "lib/generic_sdram.c"
 #include "arch/x86/lib/stages.c"
 
+#include <cpu/intel/car.h>
 static void main(unsigned long bist)
 {
 	static const struct mem_controller mch[] = {
diff --git a/src/mainboard/supermicro/x6dhe_g2/romstage.c b/src/mainboard/supermicro/x6dhe_g2/romstage.c
index c6350e8e11..09f4c57de1 100644
--- a/src/mainboard/supermicro/x6dhe_g2/romstage.c
+++ b/src/mainboard/supermicro/x6dhe_g2/romstage.c
@@ -43,6 +43,7 @@ static inline int spd_read_byte(unsigned device, unsigned address)
 #include "lib/generic_sdram.c"
 #include "arch/x86/lib/stages.c"
 
+#include <cpu/intel/car.h>
 static void main(unsigned long bist)
 {
 	static const struct mem_controller mch[] = {
diff --git a/src/mainboard/supermicro/x6dhr_ig/romstage.c b/src/mainboard/supermicro/x6dhr_ig/romstage.c
index 2dc96c1705..3e51b732a4 100644
--- a/src/mainboard/supermicro/x6dhr_ig/romstage.c
+++ b/src/mainboard/supermicro/x6dhr_ig/romstage.c
@@ -45,6 +45,7 @@ static inline int spd_read_byte(unsigned device, unsigned address)
 #include "lib/generic_sdram.c"
 #include "arch/x86/lib/stages.c"
 
+#include <cpu/intel/car.h>
 static void main(unsigned long bist)
 {
 	static const struct mem_controller mch[] = {
diff --git a/src/mainboard/supermicro/x6dhr_ig2/romstage.c b/src/mainboard/supermicro/x6dhr_ig2/romstage.c
index 0f2a644ba2..868fbdc929 100644
--- a/src/mainboard/supermicro/x6dhr_ig2/romstage.c
+++ b/src/mainboard/supermicro/x6dhr_ig2/romstage.c
@@ -45,6 +45,7 @@ static inline int spd_read_byte(unsigned device, unsigned address)
 #include "lib/generic_sdram.c"
 #include "arch/x86/lib/stages.c"
 
+#include <cpu/intel/car.h>
 static void main(unsigned long bist)
 {
 	static const struct mem_controller mch[] = {
diff --git a/src/mainboard/supermicro/x7db8/romstage.c b/src/mainboard/supermicro/x7db8/romstage.c
index 791028e7dc..a52193f4a0 100644
--- a/src/mainboard/supermicro/x7db8/romstage.c
+++ b/src/mainboard/supermicro/x7db8/romstage.c
@@ -111,6 +111,7 @@ int mainboard_set_fbd_clock(int speed)
 	}
 }
 
+#include <cpu/intel/car.h>
 void main(unsigned long bist)
 {
 	if (bist == 0)