Provide MRC with a console printing callback function
Let memory initialization code use the coreboot romstage console. This
simplifies the code and makes sure that all output is available in
/sys/firmware/log.
The pei_data structure is modified to allow passing the console output
function pointer. Romstage console_tx_byte() is used for this purpose.
Change-Id: I722cfcb9ff0cf527c12cb6cac09d77ef17b588e0
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: http://review.coreboot.org/1823
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin@se-eng.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
diff --git a/src/northbridge/intel/sandybridge/pei_data.h b/src/northbridge/intel/sandybridge/pei_data.h
index cda08b2..5bb3b38 100644
--- a/src/northbridge/intel/sandybridge/pei_data.h
+++ b/src/northbridge/intel/sandybridge/pei_data.h
@@ -30,7 +30,8 @@
#ifndef PEI_DATA_H
#define PEI_DATA_H
-#define PEI_VERSION 1
+typedef void (*tx_byte_func)(unsigned char byte);
+#define PEI_VERSION 2
struct pei_data
{
uint32_t pei_version;
@@ -93,6 +94,7 @@
* spd_address for a given "DIMM".
*/
uint8_t spd_data[4][256];
+ tx_byte_func tx_byte;
} __attribute__((packed));
#endif