intel/{i945,pineview},i82801gx: Move enable_smbus() call

Change-Id: I7a9e613f9a142e04030672f85ea80c56151be3c5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38296
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/northbridge/intel/i945/romstage.c

@@ -61,9 +61,6 @@ void mainboard_romstage_entry(void)
 
 	s3resume = southbridge_detect_s3_resume();
 
-	/* Enable SPD ROMs and DDR-II DRAM */
-	enable_smbus();
-
 	mainboard_pre_raminit_config(s3resume);
 
 	if (CONFIG(DEBUG_RAM_SETUP))

src/northbridge/intel/pineview/romstage.c

@@ -51,8 +51,6 @@ void mainboard_romstage_entry(void)
 
 	enable_lapic();
 
-	enable_smbus();
-
 	/* Perform some early chipset initialization required
 	 * before RAM initialization can work
 	 */

src/southbridge/intel/i82801gx/early_init.c

@@ -73,6 +73,9 @@ void i82801gx_early_init(void)
 {
 	uint8_t reg8;
 	uint32_t reg32;
+
+	enable_smbus();
+
 	/* Setting up Southbridge. In the northbridge code. */
 	printk(BIOS_DEBUG, "Setting up static southbridge registers...");
 	i82801gx_setup_bars();