path: root/resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/kgpe-d16/0035-mainboard-asus-kgpe-d16-Add-initial-Family-15h-CPU-s.patch

From 2774e3488cb3fa2139cd40930a035f0fcfc13ec5 Mon Sep 17 00:00:00 2001
From: Timothy Pearson <tpearson@raptorengineeringinc.com>
Date: Sat, 5 Sep 2015 19:37:57 -0500
Subject: [PATCH 035/143] mainboard/asus/kgpe-d16: Add initial Family 15h CPU
 support

Change-Id: I76f74ed4ae383f8b1f57eaaa2e025035002430f2
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
---
 src/mainboard/asus/kgpe-d16/Kconfig       |    1 +
 src/mainboard/asus/kgpe-d16/cmos.default  |    3 +-
 src/mainboard/asus/kgpe-d16/cmos.layout   |   15 +-
 src/mainboard/asus/kgpe-d16/devicetree.cb |    4 +
 src/mainboard/asus/kgpe-d16/resourcemap.c |  276 ++++++++++++++++++++++++++++-
 src/mainboard/asus/kgpe-d16/romstage.c    |   56 +++---
 6 files changed, 325 insertions(+), 30 deletions(-)

diff --git a/src/mainboard/asus/kgpe-d16/Kconfig b/src/mainboard/asus/kgpe-d16/Kconfig
index 9471692..8906dee 100644
--- a/src/mainboard/asus/kgpe-d16/Kconfig
+++ b/src/mainboard/asus/kgpe-d16/Kconfig
@@ -13,6 +13,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select SOUTHBRIDGE_AMD_SB700_DISABLE_ISA_DMA
 	select SUPERIO_NUVOTON_NCT5572D
 	select PARALLEL_CPU_INIT
+	select HAVE_ROMSTAGE_CONSOLE_SPINLOCK
 	select HAVE_HARD_RESET
 	select HAVE_OPTION_TABLE
 	select HAVE_CMOS_DEFAULT
diff --git a/src/mainboard/asus/kgpe-d16/cmos.default b/src/mainboard/asus/kgpe-d16/cmos.default
index 39a4778..3e2ea3a 100644
--- a/src/mainboard/asus/kgpe-d16/cmos.default
+++ b/src/mainboard/asus/kgpe-d16/cmos.default
@@ -2,13 +2,14 @@ baud_rate = 115200
 debug_level = Spew
 multi_core = Enable
 slow_cpu = off
+compute_unit_siblings = Enable
 iommu = Disable
 nmi = Disable
 hypertransport_speed_limit = Auto
 max_mem_clock = DDR3-1600
 minimum_memory_voltage = 1.5V
 ECC_memory = Enable
-ECC_redirection = Disable
+ECC_redirection = Enable
 ecc_scrub_rate = 1.28us
 interleave_chip_selects = Enable
 interleave_nodes = Disable
diff --git a/src/mainboard/asus/kgpe-d16/cmos.layout b/src/mainboard/asus/kgpe-d16/cmos.layout
index 110e0bb..e55edc4 100644
--- a/src/mainboard/asus/kgpe-d16/cmos.layout
+++ b/src/mainboard/asus/kgpe-d16/cmos.layout
@@ -31,8 +31,8 @@ entries
 401          1       e       1        interleave_chip_selects
 402          1       e       1        interleave_nodes
 403          1       e       1        interleave_memory_channels
-404          2       e       8        max_mem_clock
-406          1       e       2        multi_core
+404          4       e       8        max_mem_clock
+408          1       e       2        multi_core
 412          4       e       6        debug_level
 440          4       e       9        slow_cpu
 444          1       e       1        nmi
@@ -42,6 +42,7 @@ entries
 457          1       e       1        ECC_redirection
 458          4       e       11       hypertransport_speed_limit
 462          2       e       12       minimum_memory_voltage
+464          1       e       2        compute_unit_siblings
 477          1       e       1        ieee1394
 728        256       h       0        user_data
 984         16       h       0        check_sum
@@ -79,10 +80,12 @@ enumerations
 6     6     Information
 6     7     Debug
 6     8     Spew
-8     0     DDR3-1600
-8     1     DDR3-1333
-8     2     DDR3-1066
-8     3     DDR3-800
+8     0     DDR3-1866
+8     1     DDR3-1600
+8     2     DDR3-1333
+8     3     DDR3-1066
+8     4     DDR3-800
+8     5     DDR3-667
 9     0     off
 9     1     87.5%
 9     2     75.0%
diff --git a/src/mainboard/asus/kgpe-d16/devicetree.cb b/src/mainboard/asus/kgpe-d16/devicetree.cb
index f4769fd..cd22893 100644
--- a/src/mainboard/asus/kgpe-d16/devicetree.cb
+++ b/src/mainboard/asus/kgpe-d16/devicetree.cb
@@ -229,21 +229,25 @@ chip northbridge/amd/amdfam10/root_complex	# Root complex
 			device pci 18.2 on end
 			device pci 18.3 on end
 			device pci 18.4 on end
+			device pci 18.5 on end
 			device pci 19.0 on end		# Socket 0 node 1
 			device pci 19.1 on end
 			device pci 19.2 on end
 			device pci 19.3 on end
 			device pci 19.4 on end
+			device pci 19.5 on end
 			device pci 1a.0 on end		# Socket 1 node 0
 			device pci 1a.1 on end
 			device pci 1a.2 on end
 			device pci 1a.3 on end
 			device pci 1a.4 on end
+			device pci 1a.5 on end
 			device pci 1b.0 on end		# Socket 1 node 1
 			device pci 1b.1 on end
 			device pci 1b.2 on end
 			device pci 1b.3 on end
 			device pci 1b.4 on end
+			device pci 1b.5 on end
 		end
 	end
 end
diff --git a/src/mainboard/asus/kgpe-d16/resourcemap.c b/src/mainboard/asus/kgpe-d16/resourcemap.c
index 3e240dc..3aab8b8 100644
--- a/src/mainboard/asus/kgpe-d16/resourcemap.c
+++ b/src/mainboard/asus/kgpe-d16/resourcemap.c
@@ -23,7 +23,262 @@
 
 static void setup_mb_resource_map(void)
 {
-	static const unsigned int register_values[] = {
+	static const unsigned int fam15h_register_values[] = {
+		/* Careful set limit registers before base registers which contain the enables */
+		/* DRAM Limit i Registers
+		 * F1:0x44 i = 0
+		 * F1:0x4C i = 1
+		 * F1:0x54 i = 2
+		 * F1:0x5C i = 3
+		 * F1:0x64 i = 4
+		 * F1:0x6C i = 5
+		 * F1:0x74 i = 6
+		 * F1:0x7C i = 7
+		 * [ 2: 0] Destination Node ID
+		 *	   000 = Node 0
+		 *	   001 = Node 1
+		 *	   010 = Node 2
+		 *	   011 = Node 3
+		 *	   100 = Node 4
+		 *	   101 = Node 5
+		 *	   110 = Node 6
+		 *	   111 = Node 7
+		 * [ 7: 3] Reserved
+		 * [10: 8] Interleave select
+		 *	   specifies the values of A[14:12] to use with interleave enable.
+		 * [15:11] Reserved
+		 * [31:16] DRAM Limit Address i Bits 39-24
+		 *	   This field defines the upper address bits of a 40 bit  address
+		 *	   that define the end of the DRAM region.
+		 */
+		// PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x44), 0x0000f8f8, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x4C), 0x0000f8f8, 0x00000001,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x54), 0x0000f8f8, 0x00000002,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x5C), 0x0000f8f8, 0x00000003,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x64), 0x0000f8f8, 0x00000004,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x6C), 0x0000f8f8, 0x00000005,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x74), 0x0000f8f8, 0x00000006,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x7C), 0x0000f8f8, 0x00000007,
+
+		/* DRAM Base i Registers
+		 * F1:0x40 i = 0
+		 * F1:0x48 i = 1
+		 * F1:0x50 i = 2
+		 * F1:0x58 i = 3
+		 * F1:0x60 i = 4
+		 * F1:0x68 i = 5
+		 * F1:0x70 i = 6
+		 * F1:0x78 i = 7
+		 * [ 0: 0] Read Enable
+		 *	   0 = Reads Disabled
+		 *	   1 = Reads Enabled
+		 * [ 1: 1] Write Enable
+		 *	   0 = Writes Disabled
+		 *	   1 = Writes Enabled
+		 * [ 7: 2] Reserved
+		 * [10: 8] Interleave Enable
+		 *	   000 = No interleave
+		 *	   001 = Interleave on A[12] (2 nodes)
+		 *	   010 = reserved
+		 *	   011 = Interleave on A[12] and A[14] (4 nodes)
+		 *	   100 = reserved
+		 *	   101 = reserved
+		 *	   110 = reserved
+		 *	   111 = Interleve on A[12] and A[13] and A[14] (8 nodes)
+		 * [15:11] Reserved
+		 * [31:16] DRAM Base Address i Bits 39-24
+		 *	   This field defines the upper address bits of a 40-bit address
+		 *	   that define the start of the DRAM region.
+		 */
+		// PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x40), 0x0000f8fc, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x48), 0x0000f8fc, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x50), 0x0000f8fc, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x58), 0x0000f8fc, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x60), 0x0000f8fc, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x68), 0x0000f8fc, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x70), 0x0000f8fc, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x78), 0x0000f8fc, 0x00000000,
+
+		/* Memory-Mapped I/O Limit i Registers
+		 * F1:0x84 i = 0
+		 * F1:0x8C i = 1
+		 * F1:0x94 i = 2
+		 * F1:0x9C i = 3
+		 * F1:0xA4 i = 4
+		 * F1:0xAC i = 5
+		 * F1:0xB4 i = 6
+		 * F1:0xBC i = 7
+		 * [ 2: 0] Destination Node ID
+		 *	   000 = Node 0
+		 *	   001 = Node 1
+		 *	   010 = Node 2
+		 *	   011 = Node 3
+		 *	   100 = Node 4
+		 *	   101 = Node 5
+		 *	   110 = Node 6
+		 *	   111 = Node 7
+		 * [ 3: 3] Reserved
+		 * [ 5: 4] Destination Link ID
+		 *	   00 = Link 0
+		 *	   01 = Link 1
+		 *	   10 = Link 2
+		 *	   11 = Link 3
+		 * [ 6: 6] Reserved
+		 * [ 7: 7] Non-Posted
+		 *	   0 = CPU writes may be posted
+		 *	   1 = CPU writes must be non-posted
+		 * [31: 8] Memory-Mapped I/O Limit Address i (39-16)
+		 *	   This field defines the upp adddress bits of a 40-bit address that
+		 *	   defines the end of a memory-mapped I/O region n
+		 */
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x84), 0x00000048, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x8C), 0x00000048, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x94), 0x00000048, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x9C), 0x00000048, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xA4), 0x00000048, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xAC), 0x00000048, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xB4), 0x00000048, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xBC), 0x00000048, 0x00000000,
+
+		/* Memory-Mapped I/O Base i Registers
+		 * F1:0x80 i = 0
+		 * F1:0x88 i = 1
+		 * F1:0x90 i = 2
+		 * F1:0x98 i = 3
+		 * F1:0xA0 i = 4
+		 * F1:0xA8 i = 5
+		 * F1:0xB0 i = 6
+		 * F1:0xB8 i = 7
+		 * [ 0: 0] Read Enable
+		 *	   0 = Reads disabled
+		 *	   1 = Reads Enabled
+		 * [ 1: 1] Write Enable
+		 *	   0 = Writes disabled
+		 *	   1 = Writes Enabled
+		 * [ 2: 2] Cpu Disable
+		 *	   0 = Cpu can use this I/O range
+		 *	   1 = Cpu requests do not use this I/O range
+		 * [ 3: 3] Lock
+		 *	   0 = base/limit registers i are read/write
+		 *	   1 = base/limit registers i are read-only
+		 * [ 7: 4] Reserved
+		 * [31: 8] Memory-Mapped I/O Base Address i (39-16)
+		 *	   This field defines the upper address bits of a 40bit address
+		 *	   that defines the start of memory-mapped I/O region i
+		 */
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x80), 0x000000f0, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x88), 0x000000f0, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x90), 0x000000f0, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0x98), 0x000000f0, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xA0), 0x000000f0, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xA8), 0x000000f0, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xB0), 0x000000f0, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xB8), 0x000000f0, 0x00000000,
+
+		/* PCI I/O Limit i Registers
+		 * F1:0xC4 i = 0
+		 * F1:0xCC i = 1
+		 * F1:0xD4 i = 2
+		 * F1:0xDC i = 3
+		 * [ 2: 0] Destination Node ID
+		 *	   000 = Node 0
+		 *	   001 = Node 1
+		 *	   010 = Node 2
+		 *	   011 = Node 3
+		 *	   100 = Node 4
+		 *	   101 = Node 5
+		 *	   110 = Node 6
+		 *	   111 = Node 7
+		 * [ 3: 3] Reserved
+		 * [ 5: 4] Destination Link ID
+		 *	   00 = Link 0
+		 *	   01 = Link 1
+		 *	   10 = Link 2
+		 *	   11 = Link 3
+		 * [11: 6] Reserved
+		 * [24:12] PCI I/O Limit Address i
+		 *	   This field defines the end of PCI I/O region n
+		 * [31:25] Reserved
+		 */
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xC4), 0xFE000FC8, 0x00fff010, /* link 1 of cpu 0 --> AMD SR5690 */
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xCC), 0xFE000FC8, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xD4), 0xFE000FC8, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xDC), 0xFE000FC8, 0x00000000,
+
+		/* PCI I/O Base i Registers
+		 * F1:0xC0 i = 0
+		 * F1:0xC8 i = 1
+		 * F1:0xD0 i = 2
+		 * F1:0xD8 i = 3
+		 * [ 0: 0] Read Enable
+		 *	   0 = Reads Disabled
+		 *	   1 = Reads Enabled
+		 * [ 1: 1] Write Enable
+		 *	   0 = Writes Disabled
+		 *	   1 = Writes Enabled
+		 * [ 3: 2] Reserved
+		 * [ 4: 4] VGA Enable
+		 *	   0 = VGA matches Disabled
+		 *	   1 = matches all address < 64K and where A[9:0] is in the
+		 *	       range 3B0-3BB or 3C0-3DF independent of the base & limit registers
+		 * [ 5: 5] ISA Enable
+		 *	   0 = ISA matches Disabled
+		 *	   1 = Blocks address < 64K and in the last 768 bytes of eack 1K block
+		 *	       from matching agains this base/limit pair
+		 * [11: 6] Reserved
+		 * [24:12] PCI I/O Base i
+		 *	   This field defines the start of PCI I/O region n
+		 * [31:25] Reserved
+		 */
+// 		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xC0), 0xFE000FCC, 0x00001013,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xC8), 0xFE000FCC, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xD0), 0xFE000FCC, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xD8), 0xFE000FCC, 0x00000000,
+
+		/* Config Base and Limit i Registers
+		 * F1:0xE0 i = 0
+		 * F1:0xE4 i = 1
+		 * F1:0xE8 i = 2
+		 * F1:0xEC i = 3
+		 * [ 0: 0] Read Enable
+		 *	   0 = Reads Disabled
+		 *	   1 = Reads Enabled
+		 * [ 1: 1] Write Enable
+		 *	   0 = Writes Disabled
+		 *	   1 = Writes Enabled
+		 * [ 2: 2] Device Number Compare Enable
+		 *	   0 = The ranges are based on bus number
+		 *	   1 = The ranges are ranges of devices on bus 0
+		 * [ 3: 3] Reserved
+		 * [ 6: 4] Destination Node
+		 *	   000 = Node 0
+		 *	   001 = Node 1
+		 *	   010 = Node 2
+		 *	   011 = Node 3
+		 *	   100 = Node 4
+		 *	   101 = Node 5
+		 *	   110 = Node 6
+		 *	   111 = Node 7
+		 * [ 7: 7] Reserved
+		 * [ 9: 8] Destination Link
+		 *	   00 = Link 0
+		 *	   01 = Link 1
+		 *	   10 = Link 2
+		 *	   11 - Link 3
+		 * [15:10] Reserved
+		 * [23:16] Bus Number Base i
+		 *	   This field defines the lowest bus number in configuration region i
+		 * [31:24] Bus Number Limit i
+		 *	   This field defines the highest bus number in configuration region i
+		 */
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xE0), 0x0000FC88, 0x05000103, /* link 1 of cpu 0 --> AMD SR5690 */
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xE4), 0x0000FC88, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xE8), 0x0000FC88, 0x00000000,
+		PCI_ADDR(CONFIG_CBB, CONFIG_CDB, 1, 0xEC), 0x0000FC88, 0x00000000,
+
+	};
+
+	static const unsigned int fam10h_register_values[] = {
 		/* Careful set limit registers before base registers which contain the enables */
 		/* DRAM Limit i Registers
 		 * F1:0x44 i = 0
@@ -279,6 +534,21 @@ static void setup_mb_resource_map(void)
 	};
 
 	int max;
-	max = ARRAY_SIZE(register_values);
-	setup_resource_map(register_values, max);
+	uint8_t fam15h = 0;
+	uint32_t family;
+
+	family = cpuid_eax(0x80000001);
+	family = ((family & 0xf00000) >> 16) | ((family & 0xf00) >> 8);
+
+	if (family >= 0x6f)
+		/* Family 15h or later */
+		fam15h = 1;
+
+	if (fam15h) {
+		max = ARRAY_SIZE(fam15h_register_values);
+		setup_resource_map(fam15h_register_values, max);
+	} else {
+		max = ARRAY_SIZE(fam10h_register_values);
+		setup_resource_map(fam10h_register_values, max);
+	}
 }
diff --git a/src/mainboard/asus/kgpe-d16/romstage.c b/src/mainboard/asus/kgpe-d16/romstage.c
index a58fd0f..4b4e305 100644
--- a/src/mainboard/asus/kgpe-d16/romstage.c
+++ b/src/mainboard/asus/kgpe-d16/romstage.c
@@ -42,6 +42,7 @@
 #include <superio/nuvoton/common/nuvoton.h>
 #include <superio/nuvoton/nct5572d/nct5572d.h>
 #include <cpu/x86/bist.h>
+#include <smp/spinlock.h>
 // #include "northbridge/amd/amdk8/incoherent_ht.c"
 #include <southbridge/amd/sb700/sb700.h>
 #include <southbridge/amd/sb700/smbus.h>
@@ -202,20 +203,20 @@ void DIMMSetVoltages(struct MCTStatStruc *pMCTstat,
 		if (pDCTstat->NodePresent && (node & 0x1)) {
 			/* Set voltages */
 			if (allowed_voltages & 0x8) {
-				set_voltage = 1150;
+				set_voltage = 0x8;
 				set_ddr3_voltage(socket, 3);
 			} else if (allowed_voltages & 0x4) {
-				set_voltage = 1250;
+				set_voltage = 0x4;
 				set_ddr3_voltage(socket, 2);
 			} else if (allowed_voltages & 0x2) {
-				set_voltage = 1350;
+				set_voltage = 0x2;
 				set_ddr3_voltage(socket, 1);
 			} else {
-				set_voltage = 1500;
+				set_voltage = 0x1;
 				set_ddr3_voltage(socket, 0);
 			}
 
-			/* Save final DIMM voltages for SMBIOS use */
+			/* Save final DIMM voltages for MCT and SMBIOS use */
 			if (pDCTstat->NodePresent) {
 				for (dimm = 0; dimm < MAX_DIMMS_SUPPORTED; dimm++) {
 					pDCTstat->DimmConfiguredVoltage[dimm] = set_voltage;
@@ -229,6 +230,9 @@ void DIMMSetVoltages(struct MCTStatStruc *pMCTstat,
 			}
 		}
 	}
+
+	/* Allow the DDR supply voltages to settle */
+	udelay(100000);
 }
 
 static void set_peripheral_control_lines(void) {
@@ -288,6 +292,18 @@ static void execute_memory_test(void)
 }
 #endif
 
+static spinlock_t printk_spinlock CAR_GLOBAL;
+
+spinlock_t* romstage_console_lock(void)
+{
+	return car_get_var_ptr(&printk_spinlock);
+}
+
+void initialize_romstage_console_lock(void)
+{
+	car_get_var(printk_spinlock) = SPIN_LOCK_UNLOCKED;
+}
+
 void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 {
 	struct sys_info *sysinfo = &sysinfo_car;
@@ -302,6 +318,9 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 	int s3resume = acpi_is_wakeup_s3();
 
 	if (!cpu_init_detectedx && boot_cpu()) {
+		/* Initialize the printk spinlock */
+		initialize_romstage_console_lock();
+
 		/* Nothing special needs to be done to find bus 0 */
 		/* Allow the HT devices to be found */
 		set_bsp_node_CHtExtNodeCfgEn();
@@ -368,18 +387,21 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 	setup_mb_resource_map();
 	post_code(0x36);
 
-	/* wait for all the APs core0 started by finalize_node_setup. */
-	/* FIXME: A bunch of cores are going to start output to serial at once.
-	 * It would be nice to fix up prink spinlocks for ROM XIP mode.
-	 * I think it could be done by putting the spinlock flag in the cache
-	 * of the BSP located right after sysinfo.
-	 */
+	/* Wait for all the APs core0 started by finalize_node_setup. */
 	wait_all_core0_started();
 
 	/* run _early_setup before soft-reset. */
 	sr5650_early_setup();
 	sb7xx_51xx_early_setup();
 
+	if (IS_ENABLED(CONFIG_LOGICAL_CPUS)) {
+		/* Core0 on each node is configured. Now setup any additional cores. */
+		printk(BIOS_DEBUG, "start_other_cores()\n");
+		start_other_cores();
+		post_code(0x37);
+		wait_all_other_cores_started(bsp_apicid);
+	}
+
 	if (IS_ENABLED(CONFIG_SET_FIDVID)) {
 		msr = rdmsr(0xc0010071);
 		printk(BIOS_DEBUG, "\nBegin FIDVID MSR 0xc0010071 0x%08x 0x%08x\n", msr.hi, msr.lo);
@@ -389,11 +411,13 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 
 		post_code(0x39);
 
+		#if IS_ENABLED(CONFIG_SET_FIDVID)
 		if (!warm_reset_detect(0)) {			// BSP is node 0
 			init_fidvid_bsp(bsp_apicid, sysinfo->nodes);
 		} else {
 			init_fidvid_stage2(bsp_apicid, 0);	// BSP is node 0
 		}
+		#endif
 
 		post_code(0x3A);
 
@@ -402,21 +426,13 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
 		printk(BIOS_DEBUG, "End FIDVIDMSR 0xc0010071 0x%08x 0x%08x\n", msr.hi, msr.lo);
 	}
 
-	if (IS_ENABLED(CONFIG_LOGICAL_CPUS)) {
-		/* Core0 on each node is configured. Now setup any additional cores. */
-		printk(BIOS_DEBUG, "start_other_cores()\n");
-		start_other_cores();
-		post_code(0x37);
-		wait_all_other_cores_started(bsp_apicid);
-	}
-
 	post_code(0x38);
 
 	init_timer(); // Need to use TMICT to synconize FID/VID
 
 	sr5650_htinit();
 
-	/* Reset for HT, FIDVID, PLL and errata changes to take affect. */
+	/* Reset for HT, FIDVID, PLL and errata changes to take effect. */
 	if (!warm_reset_detect(0)) {
 		printk(BIOS_INFO, "...WARM RESET...\n\n\n");
 		soft_reset();
-- 
1.7.9.5