southbridge/via/vt8237r: Get rid of #include early_smbus.c

Use linker instead of '#include *.c'.

The smbus_fixup() was changed not to use a structure that's defined by a
northbridge since multiple different northbridges can be used. Instead
the caller now directly passed the memory slot details.

Change-Id: Ia369ece6365accbc531736fc463c713bbc134807
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Reviewed-on: https://review.coreboot.org/19082
Tested-by: build bot (Jenkins)
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/southbridge/via/k8t890/early_car.c

@@ -22,6 +22,7 @@
 #include <stdlib.h>
 #include <cbmem.h>
 #include <arch/io.h>
+#include <arch/acpi.h>
 #include "k8x8xx.h"
 
 /* The 256 bytes of NVRAM for S3 storage, 256B aligned */

src/southbridge/via/vt8237r/Makefile.inc

@@ -24,6 +24,7 @@ ramstage-y += usb.c
 ramstage-$(CONFIG_PIRQ_ROUTE) += pirq.c
 ramstage-$(CONFIG_HAVE_ACPI_TABLES) += fadt.c
 ramstage-$(CONFIG_HAVE_SMI_HANDLER) += smi.c
+romstage-y += early_smbus.c
 smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c
 
 endif

src/southbridge/via/vt8237r/early_smbus.c

@@ -18,6 +18,9 @@
 #if !defined(__ROMCC__)
 #include <arch/acpi.h>
 #endif
+#include <console/console.h>
+#include <arch/io.h>
+#include <device/pci_def.h>
 #include <device/pci_ids.h>
 #include <spd.h>
 #include <stdlib.h>
@@ -218,12 +221,11 @@ void enable_smbus(void)
  *
  * @param ctrl The memory controller and SMBus addresses.
  */
-void smbus_fixup(const struct mem_controller *ctrl)
+void smbus_fixup(const u8 channel0[], int ram_slots)
 {
-	int i, ram_slots, current_slot = 0;
+	int i, current_slot = 0;
 	u8 result = 0;
 
-	ram_slots = ARRAY_SIZE(ctrl->channel0);
 	if (!ram_slots) {
 		printk(BIOS_ERR, "smbus_fixup() thinks there are no RAM slots!\n");
 		return;
@@ -242,7 +244,7 @@ void smbus_fixup(const struct mem_controller *ctrl)
 		if (current_slot > ram_slots)
 			current_slot = 0;
 
-		result = smbus_read_byte(ctrl->channel0[current_slot],
+		result = smbus_read_byte(channel0[current_slot],
 					 SPD_MEMORY_TYPE);
 		current_slot++;
 		PRINT_DEBUG(".");

src/southbridge/via/vt8237r/vt8237r.h

@@ -136,8 +136,7 @@ struct vt8237_network_rom {
 u8 smbus_read_byte(u8 dimm, u8 offset);
 void smbus_write_byte(u8 dimm, u8 offset, u8 data);
 void enable_smbus(void);
-void smbus_fixup(const struct mem_controller *ctrl);
-// these are in vt8237_early_smbus.c - do they really belong there?
+void smbus_fixup(const u8 channel0[], int ram_slots);
 void vt8237_sb_enable_fid_vid(void);
 void enable_rom_decode(void);
 void vt8237_early_spi_init(void);