Make MRC vs native a config rather than making a separate chipset for it.

Tested by making lenovo x230 configurable despite pretty MRC bugs.

Change-Id: Ia2a123f24334f5cd5f42473b7ce7f3d77c0e65b7
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: https://review.coreboot.org/13658
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

28 files changed, 99 insertions, 47 deletions

diff --git a/src/Kconfig b/src/Kconfig
index 7f13b62359..fa60957a1f 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -253,8 +253,8 @@ config CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM
 
 config FLASHMAP_OFFSET
 	hex "Flash Map Offset"
-	default 0x00670000 if NORTHBRIDGE_INTEL_SANDYBRIDGE_MRC
-	default 0x00610000 if NORTHBRIDGE_INTEL_IVYBRIDGE_MRC
+	default 0x00670000 if NORTHBRIDGE_INTEL_SANDYBRIDGE
+	default 0x00610000 if NORTHBRIDGE_INTEL_IVYBRIDGE
 	default CBFS_SIZE if !ARCH_X86
 	default 0
 	help
diff --git a/src/cpu/intel/Makefile.inc b/src/cpu/intel/Makefile.inc
index 12345886ed..bd39039a77 100644
--- a/src/cpu/intel/Makefile.inc
+++ b/src/cpu/intel/Makefile.inc
@@ -20,9 +20,7 @@ subdirs-$(CONFIG_CPU_INTEL_SOCKET_PGA370) += socket_PGA370
 subdirs-$(CONFIG_CPU_INTEL_SOCKET_RPGA988B) += socket_rPGA988B
 subdirs-$(CONFIG_CPU_INTEL_SOCKET_RPGA989) += socket_rPGA989
 subdirs-$(CONFIG_NORTHBRIDGE_INTEL_NEHALEM) += model_2065x
-subdirs-$(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE_MRC) += model_206ax
 subdirs-$(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE) += model_206ax
-subdirs-$(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE_MRC) += model_206ax
 subdirs-$(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE) += model_206ax
 subdirs-$(CONFIG_NORTHBRIDGE_INTEL_HASWELL) += haswell
 subdirs-$(CONFIG_NORTHBRIDGE_INTEL_FSP_SANDYBRIDGE) += fsp_model_206ax
diff --git a/src/mainboard/apple/macbookair4_2/Kconfig b/src/mainboard/apple/macbookair4_2/Kconfig
index e9606b1172..e0cf0226a4 100644
--- a/src/mainboard/apple/macbookair4_2/Kconfig
+++ b/src/mainboard/apple/macbookair4_2/Kconfig
@@ -9,6 +9,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select HAVE_ACPI_TABLES
 	select INTEL_INT15
 	select NORTHBRIDGE_INTEL_SANDYBRIDGE
+	select USE_NATIVE_RAMINIT
 	select SERIRQ_CONTINUOUS_MODE
 	select SOUTHBRIDGE_INTEL_BD82X6X
 	select SYSTEM_TYPE_LAPTOP
diff --git a/src/mainboard/gigabyte/ga-b75m-d3h/Kconfig b/src/mainboard/gigabyte/ga-b75m-d3h/Kconfig
index 12386dc3ac..987c8b7120 100644
--- a/src/mainboard/gigabyte/ga-b75m-d3h/Kconfig
+++ b/src/mainboard/gigabyte/ga-b75m-d3h/Kconfig
@@ -5,6 +5,7 @@ config BOARD_SPECIFIC_OPTIONS
 	select ARCH_X86
 	select CPU_INTEL_SOCKET_LGA1155
 	select NORTHBRIDGE_INTEL_IVYBRIDGE
+	select USE_NATIVE_RAMINIT
 	select SOUTHBRIDGE_INTEL_C216
 	select SUPERIO_ITE_IT8728F
 	select BOARD_ROMSIZE_KB_8192
diff --git a/src/mainboard/gigabyte/ga-b75m-d3v/Kconfig b/src/mainboard/gigabyte/ga-b75m-d3v/Kconfig
index d91ea58672..2be33224fe 100644
--- a/src/mainboard/gigabyte/ga-b75m-d3v/Kconfig
+++ b/src/mainboard/gigabyte/ga-b75m-d3v/Kconfig
@@ -5,6 +5,7 @@ config BOARD_SPECIFIC_OPTIONS
 	select ARCH_X86
 	select CPU_INTEL_SOCKET_LGA1155
 	select NORTHBRIDGE_INTEL_SANDYBRIDGE
+	select USE_NATIVE_RAMINIT
 	select SOUTHBRIDGE_INTEL_C216
 	select SUPERIO_ITE_IT8728F
 	select BOARD_ROMSIZE_KB_8192
diff --git a/src/mainboard/google/butterfly/Kconfig b/src/mainboard/google/butterfly/Kconfig
index 320981a4de..1fc9c0a3e9 100644
--- a/src/mainboard/google/butterfly/Kconfig
+++ b/src/mainboard/google/butterfly/Kconfig
@@ -5,6 +5,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select SYSTEM_TYPE_LAPTOP
 	select CPU_INTEL_SOCKET_RPGA989
 	select NORTHBRIDGE_INTEL_IVYBRIDGE
+	select USE_NATIVE_RAMINIT
 	select SOUTHBRIDGE_INTEL_C216
 	select EC_QUANTA_ENE_KB3940Q
 	select BOARD_ROMSIZE_KB_8192
diff --git a/src/mainboard/google/link/Kconfig b/src/mainboard/google/link/Kconfig
index 2d9a9de0de..c9bfa2e562 100644
--- a/src/mainboard/google/link/Kconfig
+++ b/src/mainboard/google/link/Kconfig
@@ -4,7 +4,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	def_bool y
 	select SYSTEM_TYPE_LAPTOP
 	select CPU_INTEL_SOCKET_RPGA989
-	select NORTHBRIDGE_INTEL_IVYBRIDGE_MRC
+	select NORTHBRIDGE_INTEL_IVYBRIDGE
 	select SOUTHBRIDGE_INTEL_C216
 	select BOARD_ROMSIZE_KB_8192
 	select EC_GOOGLE_CHROMEEC
@@ -16,6 +16,10 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select SERIRQ_CONTINUOUS_MODE
 	select MAINBOARD_HAS_NATIVE_VGA_INIT
 
+config USE_NATIVE_RAMINIT
+	bool
+	default n
+
 config CHROMEOS
 	select CHROMEOS_VBNV_CMOS
 	select LID_SWITCH
diff --git a/src/mainboard/google/parrot/Kconfig b/src/mainboard/google/parrot/Kconfig
index e9b55a4ae8..56ebf86fb9 100644
--- a/src/mainboard/google/parrot/Kconfig
+++ b/src/mainboard/google/parrot/Kconfig
@@ -4,7 +4,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	def_bool y
 	select SYSTEM_TYPE_LAPTOP
 	select CPU_INTEL_SOCKET_RPGA989
-	select NORTHBRIDGE_INTEL_IVYBRIDGE_MRC
+	select NORTHBRIDGE_INTEL_IVYBRIDGE
 	select SOUTHBRIDGE_INTEL_C216
 	select EC_COMPAL_ENE932
 	select BOARD_ROMSIZE_KB_8192
diff --git a/src/mainboard/google/parrot/devicetree.cb b/src/mainboard/google/parrot/devicetree.cb
index 0a54566cf6..eacfe57521 100644
--- a/src/mainboard/google/parrot/devicetree.cb
+++ b/src/mainboard/google/parrot/devicetree.cb
@@ -18,6 +18,8 @@ chip northbridge/intel/sandybridge
 	register "gpu_cpu_backlight" = "0x000001d4"
 	register "gpu_pch_backlight" = "0x03aa0000"
 
+	register "max_mem_clock_mhz" = "666"
+
 	device cpu_cluster 0 on
 		chip cpu/intel/socket_rPGA989
 			device lapic 0 on end
diff --git a/src/mainboard/google/parrot/romstage.c b/src/mainboard/google/parrot/romstage.c
index 030f7c467e..5897d13bcf 100644
--- a/src/mainboard/google/parrot/romstage.c
+++ b/src/mainboard/google/parrot/romstage.c
@@ -28,6 +28,7 @@
 #include <console/console.h>
 #include <northbridge/intel/sandybridge/sandybridge.h>
 #include <northbridge/intel/sandybridge/raminit.h>
+#include <northbridge/intel/sandybridge/raminit_native.h>
 #include <southbridge/intel/bd82x6x/pch.h>
 #include <arch/cpu.h>
 #include <cpu/x86/msr.h>
@@ -158,6 +159,30 @@ void mainboard_fill_pei_data(struct pei_data *pei_data)
 	*pei_data = pei_data_template;
 }
 
+const struct southbridge_usb_port mainboard_usb_ports[] = {
+	/* enabled power  usb oc pin  */
+	{ 0, 0, -1 }, /* P0: Empty */
+	{ 1, 0, 0 }, /* P1: Left USB 1  (OC0) */
+	{ 1, 0, 1 }, /* P2: Left USB 2  (OC1) */
+	{ 1, 0, 1 }, /* P3: Left USB 3  (OC1) */
+	{ 0, 0, -1 }, /* P4: Empty */
+	{ 0, 0, -1 }, /* P5: Empty */
+	{ 0, 0, -1 }, /* P6: Empty */
+	{ 0, 0, -1 }, /* P7: Empty */
+	/* Empty and onboard Ports 8-13, set to un-used pin OC4 */
+	{ 1, 0, -1 }, /* P8: MiniPCIe (WLAN) (no OC) */
+	{ 0, 0, -1 }, /* P9: Empty */
+	{ 1, 0, -1 }, /* P10: Camera (no OC) */
+	{ 0, 0, -1 }, /* P11: Empty */
+	{ 0, 0, -1 }, /* P12: Empty */
+	{ 0, 0, -1 }, /* P13: Empty */
+};
+
+void mainboard_get_spd(spd_raw_data *spd) {
+	read_spd(&spd[0], 0x50);
+	read_spd(&spd[2], 0x52);
+}
+
 void mainboard_config_superio(void)
 {
 }
diff --git a/src/mainboard/google/stout/Kconfig b/src/mainboard/google/stout/Kconfig
index 9dcde5db1f..95c6eaf970 100644
--- a/src/mainboard/google/stout/Kconfig
+++ b/src/mainboard/google/stout/Kconfig
@@ -4,7 +4,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	def_bool y
 	select SYSTEM_TYPE_LAPTOP
 	select CPU_INTEL_SOCKET_RPGA989
-	select NORTHBRIDGE_INTEL_IVYBRIDGE_MRC
+	select NORTHBRIDGE_INTEL_IVYBRIDGE
 	select SOUTHBRIDGE_INTEL_C216
 	select EC_QUANTA_IT8518
 	select BOARD_ROMSIZE_KB_8192
@@ -17,6 +17,10 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select INTEL_INT15
 	select IVYBRIDGE_LVDS
 
+config USE_NATIVE_RAMINIT
+	bool
+	default n
+
 config CHROMEOS
 	select CHROMEOS_VBNV_CMOS
 
diff --git a/src/mainboard/intel/emeraldlake2/Kconfig b/src/mainboard/intel/emeraldlake2/Kconfig
index 1d63e76a55..ae233abb33 100644
--- a/src/mainboard/intel/emeraldlake2/Kconfig
+++ b/src/mainboard/intel/emeraldlake2/Kconfig
@@ -3,7 +3,7 @@ if BOARD_INTEL_EMERALDLAKE2
 config BOARD_SPECIFIC_OPTIONS # dummy
 	def_bool y
 	select CPU_INTEL_SOCKET_RPGA989
-	select NORTHBRIDGE_INTEL_IVYBRIDGE_MRC
+	select NORTHBRIDGE_INTEL_IVYBRIDGE
 	select SOUTHBRIDGE_INTEL_C216
 	select SUPERIO_SMSC_SIO1007
 	select BOARD_ROMSIZE_KB_8192
@@ -13,6 +13,10 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select INTEL_INT15
 	#select MAINBOARD_HAS_CHROMEOS
 
+config USE_NATIVE_RAMINIT
+	bool
+	default n
+
 config CHROMEOS
 	#select CHROMEOS_VBNV_CMOS
 
diff --git a/src/mainboard/kontron/ktqm77/Kconfig b/src/mainboard/kontron/ktqm77/Kconfig
index 9dc75cc707..ba5e3dabef 100644
--- a/src/mainboard/kontron/ktqm77/Kconfig
+++ b/src/mainboard/kontron/ktqm77/Kconfig
@@ -3,7 +3,7 @@ if BOARD_KONTRON_KTQM77
 config BOARD_SPECIFIC_OPTIONS # dummy
 	def_bool y
 	select CPU_INTEL_SOCKET_RPGA989
-	select NORTHBRIDGE_INTEL_IVYBRIDGE_MRC
+	select NORTHBRIDGE_INTEL_IVYBRIDGE
 	select SOUTHBRIDGE_INTEL_C216
 	select SUPERIO_WINBOND_W83627DHG
 	select EC_KONTRON_IT8516E
@@ -14,6 +14,10 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select ENABLE_VMX
 	select HAVE_MRC
 
+config USE_NATIVE_RAMINIT
+	bool
+	default n
+
 config MAINBOARD_DIR
 	string
 	default kontron/ktqm77
diff --git a/src/mainboard/lenovo/t420s/Kconfig b/src/mainboard/lenovo/t420s/Kconfig
index d1a398042e..ce81af729e 100644
--- a/src/mainboard/lenovo/t420s/Kconfig
+++ b/src/mainboard/lenovo/t420s/Kconfig
@@ -5,6 +5,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select SYSTEM_TYPE_LAPTOP
 	select CPU_INTEL_SOCKET_RPGA988B
 	select NORTHBRIDGE_INTEL_SANDYBRIDGE
+	select USE_NATIVE_RAMINIT
 	select SOUTHBRIDGE_INTEL_BD82X6X
 	select EC_LENOVO_PMH7
 	select EC_LENOVO_H8
diff --git a/src/mainboard/lenovo/t430s/Kconfig b/src/mainboard/lenovo/t430s/Kconfig
index b071777157..cec1b146a3 100644
--- a/src/mainboard/lenovo/t430s/Kconfig
+++ b/src/mainboard/lenovo/t430s/Kconfig
@@ -5,6 +5,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select SYSTEM_TYPE_LAPTOP
 	select CPU_INTEL_SOCKET_RPGA989
 	select NORTHBRIDGE_INTEL_IVYBRIDGE
+	select USE_NATIVE_RAMINIT
 	select SOUTHBRIDGE_INTEL_C216
 	select EC_LENOVO_PMH7
 	select EC_LENOVO_H8
diff --git a/src/mainboard/lenovo/t520/Kconfig b/src/mainboard/lenovo/t520/Kconfig
index de53662ee4..66a5c64e3b 100644
--- a/src/mainboard/lenovo/t520/Kconfig
+++ b/src/mainboard/lenovo/t520/Kconfig
@@ -5,6 +5,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select SYSTEM_TYPE_LAPTOP
 	select CPU_INTEL_SOCKET_RPGA988B
 	select NORTHBRIDGE_INTEL_SANDYBRIDGE
+	select USE_NATIVE_RAMINIT
 	select SOUTHBRIDGE_INTEL_BD82X6X
 	select EC_LENOVO_PMH7
 	select EC_LENOVO_H8
diff --git a/src/mainboard/lenovo/t530/Kconfig b/src/mainboard/lenovo/t530/Kconfig
index a9f3a447a9..f3b378a727 100644
--- a/src/mainboard/lenovo/t530/Kconfig
+++ b/src/mainboard/lenovo/t530/Kconfig
@@ -5,6 +5,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select SYSTEM_TYPE_LAPTOP
 	select CPU_INTEL_SOCKET_RPGA989
 	select NORTHBRIDGE_INTEL_IVYBRIDGE
+	select USE_NATIVE_RAMINIT
 	select SOUTHBRIDGE_INTEL_C216
 	select EC_LENOVO_PMH7
 	select EC_LENOVO_H8
diff --git a/src/mainboard/lenovo/x220/Kconfig b/src/mainboard/lenovo/x220/Kconfig
index 01a26ae5a0..fe25a9e5ff 100644
--- a/src/mainboard/lenovo/x220/Kconfig
+++ b/src/mainboard/lenovo/x220/Kconfig
@@ -5,6 +5,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select SYSTEM_TYPE_LAPTOP
 	select CPU_INTEL_SOCKET_RPGA989
 	select NORTHBRIDGE_INTEL_SANDYBRIDGE
+	select USE_NATIVE_RAMINIT
 	select SOUTHBRIDGE_INTEL_C216
 	select EC_LENOVO_PMH7
 	select EC_LENOVO_H8
diff --git a/src/mainboard/lenovo/x230/Kconfig b/src/mainboard/lenovo/x230/Kconfig
index 2fffe2a25c..f644024fed 100644
--- a/src/mainboard/lenovo/x230/Kconfig
+++ b/src/mainboard/lenovo/x230/Kconfig
@@ -5,6 +5,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select SYSTEM_TYPE_LAPTOP
 	select CPU_INTEL_SOCKET_RPGA989
 	select NORTHBRIDGE_INTEL_IVYBRIDGE
+	select USE_NATIVE_RAMINIT
 	select SOUTHBRIDGE_INTEL_C216
 	select EC_LENOVO_PMH7
 	select EC_LENOVO_H8
diff --git a/src/mainboard/samsung/lumpy/Kconfig b/src/mainboard/samsung/lumpy/Kconfig
index ac19be57b4..d0f38440ba 100644
--- a/src/mainboard/samsung/lumpy/Kconfig
+++ b/src/mainboard/samsung/lumpy/Kconfig
@@ -11,7 +11,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select HAVE_ACPI_RESUME
 	select HAVE_ACPI_TABLES
 	select HAVE_OPTION_TABLE
-	select NORTHBRIDGE_INTEL_SANDYBRIDGE_MRC
+	select NORTHBRIDGE_INTEL_SANDYBRIDGE
 	select SOUTHBRIDGE_INTEL_BD82X6X
 	select SUPERIO_SMSC_MEC1308
 # LPC47N207 selected for external LPC card
@@ -21,6 +21,10 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select INTEL_INT15
 	select HAVE_MRC
 
+config USE_NATIVE_RAMINIT
+	bool
+	default n
+
 config CHROMEOS
 	select CHROMEOS_VBNV_CMOS
 
diff --git a/src/mainboard/samsung/stumpy/Kconfig b/src/mainboard/samsung/stumpy/Kconfig
index d4b8cc23b6..50b1625521 100644
--- a/src/mainboard/samsung/stumpy/Kconfig
+++ b/src/mainboard/samsung/stumpy/Kconfig
@@ -9,7 +9,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select HAVE_ACPI_RESUME
 	select HAVE_ACPI_TABLES
 	select HAVE_OPTION_TABLE
-	select NORTHBRIDGE_INTEL_SANDYBRIDGE_MRC
+	select NORTHBRIDGE_INTEL_SANDYBRIDGE
 	select SOUTHBRIDGE_INTEL_BD82X6X
 	select SUPERIO_ITE_IT8772F
 # LPC47N207 selected for external LPC card
@@ -18,6 +18,10 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select HAVE_MRC
 	select INTEL_INT15
 
+config USE_NATIVE_RAMINIT
+	bool
+	default n
+
 config CHROMEOS
 	select PHYSICAL_REC_SWITCH
 	select CHROMEOS_VBNV_CMOS
diff --git a/src/northbridge/intel/sandybridge/Kconfig b/src/northbridge/intel/sandybridge/Kconfig
index 9d4d089dd1..5b7284872a 100644
--- a/src/northbridge/intel/sandybridge/Kconfig
+++ b/src/northbridge/intel/sandybridge/Kconfig
@@ -13,12 +13,6 @@
 ## GNU General Public License for more details.
 ##
 
-config NORTHBRIDGE_INTEL_SANDYBRIDGE_MRC
-	bool
-	select MMCONF_SUPPORT
-	select MMCONF_SUPPORT_DEFAULT
-	select CPU_INTEL_MODEL_206AX
-	select INTEL_GMA_ACPI
 
 config NORTHBRIDGE_INTEL_SANDYBRIDGE
 	bool
@@ -28,13 +22,6 @@ config NORTHBRIDGE_INTEL_SANDYBRIDGE
 	select HAVE_DEBUG_RAM_SETUP
 	select INTEL_GMA_ACPI
 
-config NORTHBRIDGE_INTEL_IVYBRIDGE_MRC
-	bool
-	select MMCONF_SUPPORT
-	select MMCONF_SUPPORT_DEFAULT
-	select CPU_INTEL_MODEL_306AX
-	select INTEL_GMA_ACPI
-
 config NORTHBRIDGE_INTEL_IVYBRIDGE
 	bool
 	select MMCONF_SUPPORT
@@ -43,7 +30,14 @@ config NORTHBRIDGE_INTEL_IVYBRIDGE
 	select HAVE_DEBUG_RAM_SETUP
 	select INTEL_GMA_ACPI
 
-if NORTHBRIDGE_INTEL_SANDYBRIDGE_MRC || NORTHBRIDGE_INTEL_IVYBRIDGE_MRC || NORTHBRIDGE_INTEL_IVYBRIDGE || NORTHBRIDGE_INTEL_SANDYBRIDGE
+if NORTHBRIDGE_INTEL_IVYBRIDGE || NORTHBRIDGE_INTEL_SANDYBRIDGE
+
+config USE_NATIVE_RAMINIT
+	bool "Use native raminit"
+	default y
+	help
+	  Select if you want to use coreboot implementation of raminit rather than
+	  System Agent/MRC.bin. You should answer Y.
 
 config CBFS_SIZE
 	hex
@@ -79,10 +73,8 @@ config MRC_CACHE_SIZE
 
 config DCACHE_RAM_BASE
 	hex
-	default 0xff7e0000 if NORTHBRIDGE_INTEL_IVYBRIDGE_MRC
-	default 0xff7e0000 if NORTHBRIDGE_INTEL_SANDYBRIDGE_MRC
-	default 0xfefe0000 if NORTHBRIDGE_INTEL_IVYBRIDGE
-	default 0xfefe0000 if NORTHBRIDGE_INTEL_SANDYBRIDGE
+	default 0xff7e0000 if !USE_NATIVE_RAMINIT
+	default 0xfefe0000 if USE_NATIVE_RAMINIT
 
 config DCACHE_RAM_SIZE
 	hex
@@ -98,7 +90,7 @@ config DCACHE_RAM_MRC_VAR_SIZE
 
 config HAVE_MRC
 	bool "Add a System Agent binary"
-	depends on !NORTHBRIDGE_INTEL_IVYBRIDGE && !NORTHBRIDGE_INTEL_SANDYBRIDGE
+	depends on !USE_NATIVE_RAMINIT
 	help
 	  Select this option to add a System Agent binary to
 	  the resulting coreboot image.
diff --git a/src/northbridge/intel/sandybridge/Makefile.inc b/src/northbridge/intel/sandybridge/Makefile.inc
index 90abe4dab6..7a3c498b2c 100644
--- a/src/northbridge/intel/sandybridge/Makefile.inc
+++ b/src/northbridge/intel/sandybridge/Makefile.inc
@@ -13,7 +13,7 @@
 # GNU General Public License for more details.
 #
 
-ifeq ($(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE)$(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE_MRC)$(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE)$(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE_MRC),y)
+ifeq ($(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE)$(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE),y)
 
 ramstage-y += ram_calc.c
 ramstage-y += northbridge.c
@@ -25,12 +25,12 @@ ramstage-y += acpi.c
 ramstage-y += mrccache.c
 
 romstage-y += ram_calc.c
-romstage-$(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE_MRC) += raminit_mrc.c
-romstage-$(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE_MRC) += raminit_mrc.c
-romstage-$(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE) += raminit.c
-romstage-$(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE) += ../../../device/dram/ddr3.c
-romstage-$(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE) += raminit.c
-romstage-$(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE) += ../../../device/dram/ddr3.c
+ifeq ($(CONFIG_USE_NATIVE_RAMINIT),y)
+romstage-y += raminit.c
+romstage-y += ../../../device/dram/ddr3.c
+else
+romstage-y += raminit_mrc.c
+endif
 romstage-y += romstage.c
 romstage-y += mrccache.c
 romstage-y += iommu.c
diff --git a/src/northbridge/intel/sandybridge/romstage.c b/src/northbridge/intel/sandybridge/romstage.c
index 04db608f83..7b367c5b69 100644
--- a/src/northbridge/intel/sandybridge/romstage.c
+++ b/src/northbridge/intel/sandybridge/romstage.c
@@ -70,8 +70,7 @@ void main(unsigned long bist)
 	mainboard_config_superio();
 
 	/* USB is inited in MRC if MRC is used.  */
-	if (!(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE_MRC
-	      || CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE_MRC)) {
+	if (CONFIG_USE_NATIVE_RAMINIT) {
 		early_usb_init(mainboard_usb_ports);
 	}
 
diff --git a/src/southbridge/intel/bd82x6x/Makefile.inc b/src/southbridge/intel/bd82x6x/Makefile.inc
index a8dd7be4cc..c85151c5aa 100644
--- a/src/southbridge/intel/bd82x6x/Makefile.inc
+++ b/src/southbridge/intel/bd82x6x/Makefile.inc
@@ -46,10 +46,11 @@ romstage-y += reset.c
 romstage-y += early_spi.c early_pch_common.c
 romstage-y += early_rcba.c
 
-romstage-$(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE_MRC) += early_me_mrc.c early_usb_mrc.c
-romstage-$(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE_MRC) += early_me_mrc.c early_usb_mrc.c
-romstage-$(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE) += early_thermal.c early_pch.c early_me.c early_usb.c
-romstage-$(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE) += early_thermal.c early_pch.c early_me.c early_usb.c
+ifeq ($(CONFIG_USE_NATIVE_RAMINIT),y)
+romstage-y += early_thermal.c early_pch.c early_me.c early_usb.c
+else
+romstage-y += early_me_mrc.c early_usb_mrc.c
+endif
 
 ramstage-y += madt.c
 
diff --git a/src/southbridge/intel/bd82x6x/usb_ehci.c b/src/southbridge/intel/bd82x6x/usb_ehci.c
index b7cd5f0633..c0cb1a9092 100644
--- a/src/southbridge/intel/bd82x6x/usb_ehci.c
+++ b/src/southbridge/intel/bd82x6x/usb_ehci.c
@@ -35,7 +35,7 @@ static void usb_ehci_init(struct device *dev)
 	printk(BIOS_DEBUG, "EHCI: Setting up controller.. ");
 
 	/* For others, done in MRC.  */
-#if IS_ENABLED(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE) || IS_ENABLED(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE)
+#if IS_ENABLED(CONFIG_USE_NATIVE_RAMINIT)
 	pci_write_config32(dev, 0x84, 0x930c8811);
 	pci_write_config32(dev, 0x88, 0x24000d30);
 	pci_write_config32(dev, 0xf4, 0x80408588);
@@ -50,7 +50,7 @@ static void usb_ehci_init(struct device *dev)
 	pci_write_config32(dev, PCI_COMMAND, reg32);
 
 	/* For others, done in MRC.  */
-#if IS_ENABLED(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE) || IS_ENABLED(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE)
+#if IS_ENABLED(CONFIG_USE_NATIVE_RAMINIT)
 	struct resource *res;
 	u8 access_cntl;
 
diff --git a/util/autoport/sandybridge.go b/util/autoport/sandybridge.go
index 66d44d9426..4ef6609b45 100644
--- a/util/autoport/sandybridge.go
+++ b/util/autoport/sandybridge.go
@@ -114,6 +114,7 @@ func (i sandybridgemc) Scan(ctx Context, addr PCIDevData) {
 
 	KconfigBool["CPU_INTEL_SOCKET_RPGA989"] = true
 	KconfigBool["NORTHBRIDGE_INTEL_"+i.variant+"BRIDGE"] = true
+	KconfigBool["USE_NATIVE_RAMINIT"] = true
 	KconfigBool["INTEL_INT15"] = true
 	KconfigBool["HAVE_ACPI_TABLES"] = true
 	KconfigBool["HAVE_ACPI_RESUME"] = true
diff --git a/util/board_status/to-wiki/towiki.sh b/util/board_status/to-wiki/towiki.sh
index 922e470916..85334ef146 100755
--- a/util/board_status/to-wiki/towiki.sh
+++ b/util/board_status/to-wiki/towiki.sh
@@ -326,9 +326,9 @@ EOF
 				case $northbridge in
 					INTEL_HASWELL)
 						cpu_nice="Intel® 4th Gen (Haswell) Core i3/i5/i7";;
-					INTEL_IVYBRIDGE|INTEL_IVYBRIDGE_MRC|INTEL_FSP_IVYBRIDGE)
+					INTEL_IVYBRIDGE|INTEL_FSP_IVYBRIDGE)
 						cpu_nice="Intel® 3rd Gen (Ivybridge) Core i3/i5/i7";;
-					INTEL_SANDYBRIDGE|INTEL_SANDYBRIDGE_MRC)
+					INTEL_SANDYBRIDGE)
 						cpu_nice="Intel® 2nd Gen (Sandybridge) Core i3/i5/i7";;
 					*)
 						cpu_nice="$northbridge";;