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, 1 deletions

diff --git a/src/mainboard/lenovo/t520/romstage.c b/src/mainboard/lenovo/t520/romstage.c
index 548c040086..df460922f2 100644
--- a/src/mainboard/lenovo/t520/romstage.c
+++ b/src/mainboard/lenovo/t520/romstage.c
@@ -108,6 +108,7 @@ static void rcba_config(void)
 	RCBA32(BUC) = 0;
 }
 
+#include <cpu/intel/car.h>
 void main(unsigned long bist)
 {
 	int boot_mode = 0;
diff --git a/src/mainboard/lenovo/t530/romstage.c b/src/mainboard/lenovo/t530/romstage.c
index d65031adba..b2cd6163c4 100644
--- a/src/mainboard/lenovo/t530/romstage.c
+++ b/src/mainboard/lenovo/t530/romstage.c
@@ -109,6 +109,7 @@ static void rcba_config(void)
 	RCBA32(BUC) = 0;
 }
 
+#include <cpu/intel/car.h>
 void main(unsigned long bist)
 {
 	int boot_mode = 0;
diff --git a/src/mainboard/lenovo/t60/romstage.c b/src/mainboard/lenovo/t60/romstage.c
index 1e2b72d6b7..01e48e7042 100644
--- a/src/mainboard/lenovo/t60/romstage.c
+++ b/src/mainboard/lenovo/t60/romstage.c
@@ -206,6 +206,7 @@ static void early_ich7_init(void)
 	RCBA32(0x2034) = reg32;
 }
 
+#include <cpu/intel/car.h>
 void main(unsigned long bist)
 {
 	u32 reg32;
diff --git a/src/mainboard/lenovo/x201/romstage.c b/src/mainboard/lenovo/x201/romstage.c
index aa2c36710d..5f8e291692 100644
--- a/src/mainboard/lenovo/x201/romstage.c
+++ b/src/mainboard/lenovo/x201/romstage.c
@@ -215,6 +215,7 @@ static void set_fsb_frequency(void)
 	smbus_block_write(0x69, 0, 5, block);
 }
 
+#include <cpu/intel/car.h>
 void main(unsigned long bist)
 {
 	u32 reg32;
diff --git a/src/mainboard/lenovo/x230/romstage.c b/src/mainboard/lenovo/x230/romstage.c
index 8c82e61539..1705003454 100644
--- a/src/mainboard/lenovo/x230/romstage.c
+++ b/src/mainboard/lenovo/x230/romstage.c
@@ -148,7 +148,7 @@ init_usb (void)
 	outw (0x0000, DEFAULT_PMBASE | 0x003c);
 }
 
-
+#include <cpu/intel/car.h>
 void main(unsigned long bist)
 {
 	int s3resume = 0;
diff --git a/src/mainboard/lenovo/x60/romstage.c b/src/mainboard/lenovo/x60/romstage.c
index d1f8f640a2..68a9b48937 100644
--- a/src/mainboard/lenovo/x60/romstage.c
+++ b/src/mainboard/lenovo/x60/romstage.c
@@ -213,6 +213,7 @@ static void early_ich7_init(void)
 	RCBA32(0x2034) = reg32;
 }
 
+#include <cpu/intel/car.h>
 void main(unsigned long bist)
 {
 	u32 reg32;