nb/intel/i945: Move boilerplate romstage to a common location

This adds callbacks for mainboard specific init.

Change-Id: Ib67bc492a7b7f02f9b57a52fd6730e16501b436e
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36787
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 6 insertions, 58 deletions

diff --git a/src/mainboard/gigabyte/ga-945gcm-s2l/romstage.c b/src/mainboard/gigabyte/ga-945gcm-s2l/romstage.c
index cd1345148d..467a66f959 100644
--- a/src/mainboard/gigabyte/ga-945gcm-s2l/romstage.c
+++ b/src/mainboard/gigabyte/ga-945gcm-s2l/romstage.c
@@ -14,25 +14,17 @@
  * GNU General Public License for more details.
  */
 
-#include <stdint.h>
-#include <device/pci_ops.h>
-#include <device/pci_def.h>
-#include <cpu/x86/lapic.h>
 #include <superio/ite/it8718f/it8718f.h>
 #include <superio/ite/common/ite.h>
-#include <console/console.h>
-#include <arch/romstage.h>
 #include <northbridge/intel/i945/i945.h>
-#include <northbridge/intel/i945/raminit.h>
 #include <southbridge/intel/i82801gx/i82801gx.h>
-#include <southbridge/intel/common/pmclib.h>
 
 #define SERIAL_DEV PNP_DEV(0x2e, IT8718F_SP1)
 #define GPIO_DEV PNP_DEV(0x2e, IT8718F_GPIO)
 #define EC_DEV PNP_DEV(0x2e, IT8718F_EC)
 #define SUPERIO_DEV PNP_DEV(0x2e, 0)
 
-static void setup_sio(void)
+void mainboard_superio_config(void)
 {
 	/* Set default GPIOs on superio */
 	ite_reg_write(GPIO_DEV, 0x25, 0x40);
@@ -54,59 +46,15 @@ static void setup_sio(void)
 
 	ite_reg_write(EC_DEV, 0x70, 0x00); // Don't use IRQ9
 	ite_reg_write(EC_DEV, 0x30, 0xff); // Enable
-}
-
-static void rcba_config(void)
-{
-	/* Enable PCIe Root Port Clock Gate */
-	RCBA32(CG) = 0x00000001;
-}
 
-void mainboard_romstage_entry(void)
-{
-	int s3resume = 0, boot_mode = 0;
-	enable_lapic();
-
-	i82801gx_lpc_setup();
-	/* Enable SuperIO PM */
-	setup_sio();
 	ite_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
 
 	/* Disable SIO reboot */
 	ite_reg_write(GPIO_DEV, 0xEF, 0x7E);
+}
 
-	/* Set up the console */
-	console_init();
-
-	if (MCHBAR16(SSKPD) == 0xCAFE) {
-		printk(BIOS_DEBUG, "soft reset detected.\n");
-		boot_mode = 1;
-	}
-
-	/* Perform some early chipset initialization required
-	 * before RAM initialization can work
-	 */
-	i82801gx_early_init();
-	i945_early_initialization();
-
-	s3resume = southbridge_detect_s3_resume();
-
-	/* Enable SPD ROMs and DDR-II DRAM */
-	enable_smbus();
-
-	if (CONFIG(DEBUG_RAM_SETUP))
-		dump_spd_registers();
-
-	sdram_initialize(s3resume ? 2 : boot_mode, NULL);
-
-	/* This should probably go away. Until now it is required
-	 * and mainboard specific
-	 */
-	rcba_config();
-
-	/* Chipset Errata! */
-	fixup_i945_errata();
-
-	/* Initialize the internal PCIe links before we go into stage2 */
-	i945_late_initialization(s3resume);
+void mainboard_late_rcba_config(void)
+{
+	/* Enable PCIe Root Port Clock Gate */
+	RCBA32(CG) = 0x00000001;
 }