Intel (sandy/ivy): Avoid calling cbmem_initialize() twice

Delay the copying of MRC cache data from CAR to CBMEM until after
sdram_initialize() returns and cbmem_initialize() completes.
Calling cbmem_initialize() twice would complicate the decision logic
of when CBMEM area needs to be wiped clean.

Change-Id: Ic59e94cb2436293efc47b52f7418f5dbf76c714a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/4666
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>

src/mainboard/google/butterfly/romstage.c

@@ -245,6 +245,8 @@ void main(unsigned long bist)
 
 	MCHBAR16(SSKPD) = 0xCAFE;
 	cbmem_was_initted = !cbmem_initialize();
+	if (boot_mode!=2)
+		save_mrc_data(&pei_data);
 
 #if CONFIG_HAVE_ACPI_RESUME
 	/* If there is no high memory area, we didn't boot before, so

src/mainboard/google/link/romstage.c

@@ -289,6 +289,8 @@ void main(unsigned long bist)
 
 	MCHBAR16(SSKPD) = 0xCAFE;
 	cbmem_was_initted = !cbmem_initialize();
+	if (boot_mode!=2)
+		save_mrc_data(&pei_data);
 
 #if CONFIG_HAVE_ACPI_RESUME
 	/* If there is no high memory area, we didn't boot before, so

src/mainboard/google/parrot/romstage.c

@@ -245,6 +245,8 @@ void main(unsigned long bist)
 
 	MCHBAR16(SSKPD) = 0xCAFE;
 	cbmem_was_initted = !cbmem_initialize();
+	if (boot_mode!=2)
+		save_mrc_data(&pei_data);
 
 #if CONFIG_HAVE_ACPI_RESUME
 	/* If there is no high memory area, we didn't boot before, so

src/mainboard/google/stout/romstage.c

@@ -297,6 +297,8 @@ void main(unsigned long bist)
 
 	MCHBAR16(SSKPD) = 0xCAFE;
 	cbmem_was_initted = !cbmem_initialize();
+	if (boot_mode!=2)
+		save_mrc_data(&pei_data);
 
 #if CONFIG_HAVE_ACPI_RESUME
 	/* If there is no high memory area, we didn't boot before, so

src/mainboard/intel/emeraldlake2/romstage.c

@@ -297,6 +297,8 @@ void main(unsigned long bist)
 
 	MCHBAR16(SSKPD) = 0xCAFE;
 	cbmem_was_initted = !cbmem_initialize();
+	if (boot_mode!=2)
+		save_mrc_data(&pei_data);
 
 #if CONFIG_HAVE_ACPI_RESUME
 	/* If there is no high memory area, we didn't boot before, so

src/mainboard/kontron/ktqm77/romstage.c

@@ -296,6 +296,8 @@ void main(unsigned long bist)
 
 	MCHBAR16(SSKPD) = 0xCAFE;
 	cbmem_was_initted = !cbmem_initialize();
+	if (boot_mode!=2)
+		save_mrc_data(&pei_data);
 
 #if CONFIG_HAVE_ACPI_RESUME
 	/* If there is no high memory area, we didn't boot before, so

src/mainboard/samsung/lumpy/romstage.c

@@ -318,6 +318,8 @@ void main(unsigned long bist)
 	MCHBAR16(SSKPD) = 0xCAFE;
 
 	cbmem_was_initted = !cbmem_initialize();
+	if (boot_mode!=2)
+		save_mrc_data(&pei_data);
 
 #if CONFIG_HAVE_ACPI_RESUME
 	/* If there is no high memory area, we didn't boot before, so

src/mainboard/samsung/stumpy/romstage.c

@@ -325,6 +325,8 @@ void main(unsigned long bist)
 
 	MCHBAR16(SSKPD) = 0xCAFE;
 	cbmem_was_initted = !cbmem_initialize();
+	if (boot_mode!=2)
+		save_mrc_data(&pei_data);
 
 #if CONFIG_HAVE_ACPI_RESUME
 	/* If there is no high memory area, we didn't boot before, so

src/northbridge/intel/sandybridge/raminit.c

@@ -54,7 +54,7 @@
 #define CMOS_OFFSET_MRC_SEED_CHK 160
 #endif
 
-static void save_mrc_data(struct pei_data *pei_data)
+void save_mrc_data(struct pei_data *pei_data)
 {
 	u16 c1, c2, checksum;
 
@@ -63,7 +63,6 @@ static void save_mrc_data(struct pei_data *pei_data)
 	int output_len = ALIGN(pei_data->mrc_output_len, 16);
 
 	/* Save the MRC S3 restore data to cbmem */
-	cbmem_initialize();
 	mrcdata = cbmem_add
 		(CBMEM_ID_MRCDATA,
 		 output_len + sizeof(struct mrc_data_container));
@@ -297,8 +296,4 @@ void sdram_initialize(struct pei_data *pei_data)
 
 	post_system_agent_init(pei_data);
 	report_memory_config();
-
-	/* S3 resume: don't save scrambler seed or MRC data */
-	if (pei_data->boot_mode != 2)
-		save_mrc_data(pei_data);
 }

src/northbridge/intel/sandybridge/raminit.h

@@ -30,6 +30,7 @@ struct sys_info {
 } __attribute__ ((packed));
 
 void sdram_initialize(struct pei_data *pei_data);
+void save_mrc_data(struct pei_data *pei_data);
 int fixup_sandybridge_errata(void);
 
 #endif				/* RAMINIT_H */