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authorFrancis Rowe <info@gluglug.org.uk>2016-01-02 17:10:32 (EST)
committer Francis Rowe <info@gluglug.org.uk>2016-01-04 15:28:39 (EST)
commitd1f408f3725aa02bc1d76c4c6aadb4697bd073c0 (patch)
tree7eed036543ae1f8c57b56825880a722a8efbedf1 /resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/kgpe-d16/0009-cpu-amd-Add-initial-support-for-AMD-Socket-G34-proce.patch
parent91aec7e72005dcda72d19f2d024a02d8c0f86590 (diff)
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Use different coreboot revisions and patches per board
The release archives will be bigger, but this is a necessary change that makes libreboot development easier. At present, there are boards maintained in libreboot by different people. By doing it this way, that becomes much easier. This is in contrast to the present situation, where a change to one board potentially affects all other boards, especially when updating to a new version of coreboot. Coreboot-libre scripts, download scripts, build scripts - everything. The entire build system has been modified to reflect this change of development. For reasons of consistency, cbfstool and nvramtool are no longer included in the util archives.
Diffstat (limited to 'resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/kgpe-d16/0009-cpu-amd-Add-initial-support-for-AMD-Socket-G34-proce.patch')
-rw-r--r--resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/kgpe-d16/0009-cpu-amd-Add-initial-support-for-AMD-Socket-G34-proce.patch832
1 files changed, 832 insertions, 0 deletions
diff --git a/resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/kgpe-d16/0009-cpu-amd-Add-initial-support-for-AMD-Socket-G34-proce.patch b/resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/kgpe-d16/0009-cpu-amd-Add-initial-support-for-AMD-Socket-G34-proce.patch
new file mode 100644
index 0000000..b66fdf3
--- /dev/null
+++ b/resources/libreboot/patch/coreboot/33fb4cf0ffb01be8bcb6b488872c87eb50e7d77f/grub/kgpe-d16/0009-cpu-amd-Add-initial-support-for-AMD-Socket-G34-proce.patch
@@ -0,0 +1,832 @@
+From 9c3c40d0b53a338e7ed153b933155db1bc0cae08 Mon Sep 17 00:00:00 2001
+From: Timothy Pearson <tpearson@raptorengineeringinc.com>
+Date: Sat, 5 Sep 2015 17:50:29 -0500
+Subject: [PATCH 009/143] cpu/amd: Add initial support for AMD Socket G34
+ processors
+
+Change-Id: Iccd034f32c26513edd52ca3a11a30f61c362682d
+Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
+---
+ src/cpu/amd/Kconfig | 1 +
+ src/cpu/amd/Makefile.inc | 1 +
+ src/cpu/amd/car/post_cache_as_ram.c | 19 ++++-
+ src/cpu/amd/model_10xxx/init_cpus.c | 34 ++++++++-
+ src/cpu/amd/model_10xxx/model_10xxx_init.c | 2 +
+ src/cpu/amd/model_10xxx/processor_name.c | 23 ++++++
+ src/cpu/amd/model_10xxx/ram_calc.c | 2 +
+ src/cpu/amd/quadcore/quadcore_id.c | 77 +++++++++++++++-----
+ src/cpu/amd/socket_G34/Kconfig | 29 ++++++++
+ src/cpu/amd/socket_G34/Makefile.inc | 14 ++++
+ src/cpu/amd/socket_G34/socket_G34.c | 25 +++++++
+ src/northbridge/amd/amdfam10/northbridge.c | 102 +++++++++++++++++++++-----
+ src/northbridge/amd/amdht/ht_wrapper.c | 107 +++++++++++++++++++++++++++-
+ src/northbridge/amd/amdht/ht_wrapper.h | 25 +++++++
+ 14 files changed, 417 insertions(+), 44 deletions(-)
+ create mode 100644 src/cpu/amd/socket_G34/Kconfig
+ create mode 100644 src/cpu/amd/socket_G34/Makefile.inc
+ create mode 100644 src/cpu/amd/socket_G34/socket_G34.c
+ create mode 100644 src/northbridge/amd/amdht/ht_wrapper.h
+
+diff --git a/src/cpu/amd/Kconfig b/src/cpu/amd/Kconfig
+index 8286b2a..3a02043 100644
+--- a/src/cpu/amd/Kconfig
++++ b/src/cpu/amd/Kconfig
+@@ -5,6 +5,7 @@ source src/cpu/amd/socket_AM2/Kconfig
+ source src/cpu/amd/socket_AM2r2/Kconfig
+ source src/cpu/amd/socket_AM3/Kconfig
+ source src/cpu/amd/socket_C32/Kconfig
++source src/cpu/amd/socket_G34/Kconfig
+ source src/cpu/amd/socket_ASB2/Kconfig
+ source src/cpu/amd/socket_F/Kconfig
+ source src/cpu/amd/socket_F_1207/Kconfig
+diff --git a/src/cpu/amd/Makefile.inc b/src/cpu/amd/Makefile.inc
+index a73e25f..e532aba 100644
+--- a/src/cpu/amd/Makefile.inc
++++ b/src/cpu/amd/Makefile.inc
+@@ -8,6 +8,7 @@ subdirs-$(CONFIG_CPU_AMD_SOCKET_AM2R2) += socket_AM2r2
+ subdirs-$(CONFIG_CPU_AMD_SOCKET_AM3) += socket_AM3
+ subdirs-$(CONFIG_CPU_AMD_SOCKET_ASB2) += socket_ASB2
+ subdirs-$(CONFIG_CPU_AMD_SOCKET_C32_NON_AGESA) += socket_C32
++subdirs-$(CONFIG_CPU_AMD_SOCKET_G34_NON_AGESA) += socket_G34
+ subdirs-$(CONFIG_CPU_AMD_GEODE_GX2) += geode_gx2
+ subdirs-$(CONFIG_CPU_AMD_GEODE_LX) += geode_lx
+ subdirs-$(CONFIG_CPU_AMD_SOCKET_S1G1) += socket_S1G1
+diff --git a/src/cpu/amd/car/post_cache_as_ram.c b/src/cpu/amd/car/post_cache_as_ram.c
+index 96df3e7..230d1aa 100644
+--- a/src/cpu/amd/car/post_cache_as_ram.c
++++ b/src/cpu/amd/car/post_cache_as_ram.c
+@@ -1,4 +1,5 @@
+-/* 2005.6 by yhlu
++/* Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
++ * 2005.6 by yhlu
+ * 2006.3 yhlu add copy data from CAR to ram
+ */
+ #include <string.h>
+@@ -46,6 +47,15 @@ static void memset_(void *d, int val, size_t len)
+ memset(d, val, len);
+ }
+
++static int memcmp_(void *d, const void *s, size_t len)
++{
++#if PRINTK_IN_CAR
++ printk(BIOS_SPEW, " Compare [%08x-%08x] with [%08x - %08x] ... ",
++ (u32) s, (u32) (s + len - 1), (u32) d, (u32) (d + len - 1));
++#endif
++ return memcmp(d, s, len);
++}
++
+ static void prepare_romstage_ramstack(void *resume_backup_memory)
+ {
+ size_t backup_top = backup_size();
+@@ -110,6 +120,12 @@ void post_cache_as_ram(void)
+ memcpy_(migrated_car, &_car_data_start[0], car_size);
+ print_car_debug("Done\n");
+
++ print_car_debug("Verifying data integrity in RAM... ");
++ if (memcmp_(migrated_car, &_car_data_start[0], car_size) == 0)
++ print_car_debug("Done\n");
++ else
++ print_car_debug("FAILED\n");
++
+ /* New stack grows right below migrated_car. */
+ print_car_debug("Switching to use RAM as stack... ");
+ cache_as_ram_switch_stack(migrated_car);
+@@ -128,6 +144,7 @@ void cache_as_ram_new_stack (void)
+ disable_cache_as_ram_bsp();
+
+ disable_cache();
++ /* Enable cached access to RAM in the range 1M to CONFIG_RAMTOP */
+ set_var_mtrr(0, 0x00000000, CONFIG_RAMTOP, MTRR_TYPE_WRBACK);
+ enable_cache();
+
+diff --git a/src/cpu/amd/model_10xxx/init_cpus.c b/src/cpu/amd/model_10xxx/init_cpus.c
+index 4c72848..8de6d25 100644
+--- a/src/cpu/amd/model_10xxx/init_cpus.c
++++ b/src/cpu/amd/model_10xxx/init_cpus.c
+@@ -2,6 +2,7 @@
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2008 Advanced Micro Devices, Inc.
++ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+@@ -67,6 +68,9 @@ static void for_each_ap(u32 bsp_apicid, u32 core_range, process_ap_t process_ap,
+ u32 nb_cfg_54;
+ int i, j;
+ u32 ApicIdCoreIdSize;
++ uint8_t rev_gte_d = 0;
++ uint8_t dual_node = 0;
++ uint32_t f3xe8;
+
+ /* get_nodes define in ht_wrapper.c */
+ nodes = get_nodes();
+@@ -81,6 +85,16 @@ static void for_each_ap(u32 bsp_apicid, u32 core_range, process_ap_t process_ap,
+ /* Assume that all node are same stepping, otherwise we can use use
+ nb_cfg_54 from bsp for all nodes */
+ nb_cfg_54 = read_nb_cfg_54();
++ f3xe8 = pci_read_config32(NODE_PCI(0, 3), 0xe8);
++
++ if (cpuid_eax(0x80000001) >= 0x8)
++ /* Revision D or later */
++ rev_gte_d = 1;
++
++ if (rev_gte_d)
++ /* Check for dual node capability */
++ if (f3xe8 & 0x20000000)
++ dual_node = 1;
+
+ ApicIdCoreIdSize = (cpuid_ecx(0x80000008) >> 12 & 0xf);
+ if (ApicIdCoreIdSize) {
+@@ -91,6 +105,8 @@ static void for_each_ap(u32 bsp_apicid, u32 core_range, process_ap_t process_ap,
+
+ for (i = 0; i < nodes; i++) {
+ cores_found = get_core_num_in_bsp(i);
++ if (siblings > cores_found)
++ siblings = cores_found;
+
+ u32 jstart, jend;
+
+@@ -107,9 +123,21 @@ static void for_each_ap(u32 bsp_apicid, u32 core_range, process_ap_t process_ap,
+ }
+
+ for (j = jstart; j <= jend; j++) {
+- ap_apicid =
+- i * (nb_cfg_54 ? (siblings + 1) : 1) +
+- j * (nb_cfg_54 ? 1 : 64);
++ if (dual_node) {
++ ap_apicid = 0;
++ if (nb_cfg_54) {
++ ap_apicid |= ((i >> 1) & 0x3) << 4; /* Node ID */
++ ap_apicid |= ((i & 0x1) * (siblings + 1)) + j; /* Core ID */
++ } else {
++ ap_apicid |= i & 0x3; /* Node ID */
++ ap_apicid |= (((i & 0x1) * (siblings + 1)) + j) << 4; /* Core ID */
++ }
++ } else {
++ ap_apicid =
++ i * (nb_cfg_54 ? (siblings + 1) : 1) +
++ j * (nb_cfg_54 ? 1 : 64);
++ }
++
+
+ #if CONFIG_ENABLE_APIC_EXT_ID && (CONFIG_APIC_ID_OFFSET > 0)
+ #if !CONFIG_LIFT_BSP_APIC_ID
+diff --git a/src/cpu/amd/model_10xxx/model_10xxx_init.c b/src/cpu/amd/model_10xxx/model_10xxx_init.c
+index 590b89d..b942c1a 100644
+--- a/src/cpu/amd/model_10xxx/model_10xxx_init.c
++++ b/src/cpu/amd/model_10xxx/model_10xxx_init.c
+@@ -2,6 +2,7 @@
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007 Advanced Micro Devices, Inc.
++ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+@@ -153,6 +154,7 @@ static struct cpu_device_id cpu_table[] = {
+ { X86_VENDOR_AMD, 0x100F63 }, /* DA-C3 */
+ { X86_VENDOR_AMD, 0x100F80 }, /* HY-D0 */
+ { X86_VENDOR_AMD, 0x100F81 }, /* HY-D1 */
++ { X86_VENDOR_AMD, 0x100F91 }, /* HY-D1 */
+ { X86_VENDOR_AMD, 0x100FA0 }, /* PH-E0 */
+ { 0, 0 },
+ };
+diff --git a/src/cpu/amd/model_10xxx/processor_name.c b/src/cpu/amd/model_10xxx/processor_name.c
+index a25e3a9..12c45c9 100644
+--- a/src/cpu/amd/model_10xxx/processor_name.c
++++ b/src/cpu/amd/model_10xxx/processor_name.c
+@@ -157,6 +157,24 @@ static const struct str_s String2_socket_AM2[] = {
+ {0, 0, 0, NULL}
+ };
+
++static const struct str_s String1_socket_G34[] = {
++ {0x00, 0x07, 0x00, "AMD Opteron(tm) Processor 61"},
++ {0x00, 0x0B, 0x00, "AMD Opteron(tm) Processor 61"},
++ {0x01, 0x07, 0x01, "Embedded AMD Opteron(tm) Processor "},
++ {0, 0, 0, NULL}
++};
++
++static const struct str_s String2_socket_G34[] = {
++ {0x00, 0x07, 0x00, " HE"},
++ {0x00, 0x07, 0x01, " SE"},
++ {0x00, 0x0B, 0x00, " HE"},
++ {0x00, 0x0B, 0x01, " SE"},
++ {0x00, 0x0B, 0x0F, ""},
++ {0x01, 0x07, 0x01, " QS"},
++ {0x01, 0x07, 0x02, " KS"},
++ {0, 0, 0, NULL}
++};
++
+ static const struct str_s String1_socket_C32[] = {
+ {0x00, 0x03, 0x00, "AMD Opteron(tm) Processor 41"},
+ {0x00, 0x05, 0x00, "AMD Opteron(tm) Processor 41"},
+@@ -240,6 +258,11 @@ int init_processor_name(void)
+ str = String1_socket_AM2;
+ str2 = String2_socket_AM2;
+ break;
++ case 3: /* G34 */
++ str = String1_socket_G34;
++ str2 = String2_socket_G34;
++ str2_checkNC = 0;
++ break;
+ case 5: /* C32 */
+ str = String1_socket_C32;
+ str2 = String2_socket_C32;
+diff --git a/src/cpu/amd/model_10xxx/ram_calc.c b/src/cpu/amd/model_10xxx/ram_calc.c
+index c8637c9..46ccdbd 100644
+--- a/src/cpu/amd/model_10xxx/ram_calc.c
++++ b/src/cpu/amd/model_10xxx/ram_calc.c
+@@ -26,6 +26,7 @@
+
+ #include "ram_calc.h"
+
++#if !IS_ENABLED(CONFIG_LATE_CBMEM_INIT)
+ uint64_t get_uma_memory_size(uint64_t topmem)
+ {
+ uint64_t uma_size = 0;
+@@ -50,3 +51,4 @@ void *cbmem_top(void)
+
+ return (void *) topmem - get_uma_memory_size(topmem);
+ }
++#endif
+diff --git a/src/cpu/amd/quadcore/quadcore_id.c b/src/cpu/amd/quadcore/quadcore_id.c
+index cf45196..c5921de 100644
+--- a/src/cpu/amd/quadcore/quadcore_id.c
++++ b/src/cpu/amd/quadcore/quadcore_id.c
+@@ -1,6 +1,7 @@
+ /*
+ * This file is part of the coreboot project.
+ *
++ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
+ * Copyright (C) 2007 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+@@ -37,33 +38,71 @@ u32 get_initial_apicid(void)
+ return ((cpuid_ebx(1) >> 24) & 0xff);
+ }
+
+-//called by amd_siblings too
+-#define CORE_ID_BIT 2
+-#define NODE_ID_BIT 6
++/* Called by amd_siblings (ramstage) as well */
+ struct node_core_id get_node_core_id(u32 nb_cfg_54)
+ {
+ struct node_core_id id;
+- u32 core_id_bits;
++ uint8_t apicid;
++ uint8_t rev_gte_d = 0;
++ uint8_t dual_node = 0;
++ uint32_t f3xe8;
+
+- u32 ApicIdCoreIdSize = (cpuid_ecx(0x80000008)>>12 & 0xf);
+- if(ApicIdCoreIdSize) {
+- core_id_bits = ApicIdCoreIdSize;
+- } else {
+- core_id_bits = CORE_ID_BIT; //quad core
+- }
++#ifdef __PRE_RAM__
++ f3xe8 = pci_read_config32(NODE_PCI(0, 3), 0xe8);
++#else
++ f3xe8 = pci_read_config32(get_node_pci(0, 3), 0xe8);
++#endif
++
++ if (cpuid_eax(0x80000001) >= 0x8)
++ /* Revision D or later */
++ rev_gte_d = 1;
+
+- // get the apicid via cpuid(1) ebx[31:24]
++ if (rev_gte_d)
++ /* Check for dual node capability */
++ if (f3xe8 & 0x20000000)
++ dual_node = 1;
++
++ /* Get the apicid via cpuid(1) ebx[31:24]
++ * The apicid format varies based on processor revision
++ */
++ apicid = (cpuid_ebx(1) >> 24) & 0xff;
+ if( nb_cfg_54) {
+- // when NB_CFG[54] is set, nodeid = ebx[31:26], coreid = ebx[25:24]
+- id.coreid = (cpuid_ebx(1) >> 24) & 0xff;
+- id.nodeid = (id.coreid>>core_id_bits);
+- id.coreid &= ((1<<core_id_bits)-1);
++ if (rev_gte_d && dual_node) {
++ id.coreid = apicid & 0xf;
++ id.nodeid = (apicid & 0x30) >> 4;
++ } else if (rev_gte_d && !dual_node) {
++ id.coreid = apicid & 0x7;
++ id.nodeid = (apicid & 0x38) >> 3;
++ } else {
++ id.coreid = apicid & 0x3;
++ id.nodeid = (apicid & 0x1c) >> 2;
++ }
+ } else {
+- // when NB_CFG[54] is clear, nodeid = ebx[29:24], coreid = ebx[31:30]
+- id.nodeid = (cpuid_ebx(1) >> 24) & 0xff;
+- id.coreid = (id.nodeid>>NODE_ID_BIT);
+- id.nodeid &= ((1<<NODE_ID_BIT)-1);
++ if (rev_gte_d && dual_node) {
++ id.coreid = (apicid & 0xf0) >> 4;
++ id.nodeid = apicid & 0x3;
++ } else if (rev_gte_d && !dual_node) {
++ id.coreid = (apicid & 0xe0) >> 5;
++ id.nodeid = apicid & 0x7;
++ } else {
++ id.coreid = (apicid & 0x60) >> 5;
++ id.nodeid = apicid & 0x7;
++ }
+ }
++
++ if (rev_gte_d && dual_node) {
++ /* Coreboot expects each separate processor die to be on a different nodeid.
++ * Since the code above returns nodeid 0 even on internal node 1 some fixup is needed...
++ */
++ uint8_t core_count = (((f3xe8 & 0x00008000) >> 13) | ((f3xe8 & 0x00003000) >> 12)) + 1;
++
++ id.nodeid = id.nodeid * 2;
++ if (id.coreid >= core_count) {
++ id.nodeid += 1;
++ id.coreid = id.coreid - core_count;
++ }
++ }
++
+ return id;
+ }
+
+diff --git a/src/cpu/amd/socket_G34/Kconfig b/src/cpu/amd/socket_G34/Kconfig
+new file mode 100644
+index 0000000..abc9726
+--- /dev/null
++++ b/src/cpu/amd/socket_G34/Kconfig
+@@ -0,0 +1,29 @@
++config CPU_AMD_SOCKET_G34_NON_AGESA
++ bool
++ select CPU_AMD_MODEL_10XXX
++ select PCI_IO_CFG_EXT
++ select X86_AMD_FIXED_MTRRS
++
++if CPU_AMD_SOCKET_G34_NON_AGESA
++
++config CPU_SOCKET_TYPE
++ hex
++ default 0x15
++
++config EXT_RT_TBL_SUPPORT
++ bool
++ default n
++
++config CBB
++ hex
++ default 0x0
++
++config CDB
++ hex
++ default 0x18
++
++config XIP_ROM_SIZE
++ hex
++ default 0x80000
++
++endif
+diff --git a/src/cpu/amd/socket_G34/Makefile.inc b/src/cpu/amd/socket_G34/Makefile.inc
+new file mode 100644
+index 0000000..a8e1333
+--- /dev/null
++++ b/src/cpu/amd/socket_G34/Makefile.inc
+@@ -0,0 +1,14 @@
++ramstage-y += socket_G34.c
++subdirs-y += ../model_10xxx
++subdirs-y += ../quadcore
++subdirs-y += ../mtrr
++subdirs-y += ../microcode
++subdirs-y += ../../x86/tsc
++subdirs-y += ../../x86/lapic
++subdirs-y += ../../x86/cache
++subdirs-y += ../../x86/pae
++subdirs-y += ../../x86/mtrr
++subdirs-y += ../../x86/smm
++subdirs-y += ../smm
++
++cpu_incs-y += $(src)/cpu/amd/car/cache_as_ram.inc
+diff --git a/src/cpu/amd/socket_G34/socket_G34.c b/src/cpu/amd/socket_G34/socket_G34.c
+new file mode 100644
+index 0000000..90f7b8c
+--- /dev/null
++++ b/src/cpu/amd/socket_G34/socket_G34.c
+@@ -0,0 +1,25 @@
++/*
++ * This file is part of the coreboot project.
++ *
++ * Copyright (C) 2010 Advanced Micro Devices, Inc.
++ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; version 2 of the License.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
++ */
++
++#include <device/device.h>
++
++struct chip_operations cpu_amd_socket_G34_ops = {
++ CHIP_NAME("socket G34")
++};
+diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c
+index 6d91cbd..74cecc8 100644
+--- a/src/northbridge/amd/amdfam10/northbridge.c
++++ b/src/northbridge/amd/amdfam10/northbridge.c
+@@ -187,6 +187,43 @@ static void ht_route_link(struct bus *link, scan_state mode)
+ }
+ }
+
++static void amd_g34_fixup(struct bus *link, device_t dev)
++{
++ uint32_t nodeid = amdfam10_nodeid(dev);
++ uint8_t rev_gte_d = 0;
++ uint8_t dual_node = 0;
++ uint32_t f3xe8;
++
++ if (cpuid_eax(0x80000001) >= 0x8)
++ /* Revision D or later */
++ rev_gte_d = 1;
++
++ if (rev_gte_d) {
++ f3xe8 = pci_read_config32(get_node_pci(0, 3), 0xe8);
++
++ /* Check for dual node capability */
++ if (f3xe8 & 0x20000000)
++ dual_node = 1;
++
++ if (dual_node) {
++ /* Each G34 processor contains a defective HT link.
++ * See the BKDG Rev 3.62 section 2.7.1.5 for details.
++ */
++ f3xe8 = pci_read_config32(get_node_pci(nodeid, 3), 0xe8);
++ uint8_t internal_node_number = ((f3xe8 & 0xc0000000) >> 30);
++ if (internal_node_number == 0) {
++ /* Node 0 */
++ if (link->link_num == 6) /* Link 2 Sublink 1 */
++ printk(BIOS_DEBUG, "amdfam10_scan_chain(): node %d (internal node ID %d): skipping defective HT link\n", nodeid, internal_node_number);
++ } else {
++ /* Node 1 */
++ if (link->link_num == 5) /* Link 1 Sublink 1 */
++ printk(BIOS_DEBUG, "amdfam10_scan_chain(): node %d (internal node ID %d): skipping defective HT link\n", nodeid, internal_node_number);
++ }
++ }
++ }
++}
++
+ static void amdfam10_scan_chain(struct bus *link)
+ {
+ unsigned int next_unitid;
+@@ -277,8 +314,11 @@ static void amdfam10_scan_chains(device_t dev)
+ trim_ht_chain(dev);
+
+ for (link = dev->link_list; link; link = link->next) {
+- if (link->ht_link_up)
++ if (link->ht_link_up) {
++ if (IS_ENABLED(CONFIG_CPU_AMD_MODEL_10XXX))
++ amd_g34_fixup(link, dev);
+ amdfam10_scan_chain(link);
++ }
+ }
+ }
+
+@@ -323,8 +363,7 @@ static struct resource *amdfam10_find_iopair(device_t dev, unsigned nodeid, unsi
+ if (result == 1) {
+ /* I have been allocated this one */
+ break;
+- }
+- else if (result > 1) {
++ } else if (result > 1) {
+ /* I have a free register pair */
+ free_reg = reg;
+ }
+@@ -357,8 +396,7 @@ static struct resource *amdfam10_find_mempair(device_t dev, u32 nodeid, u32 link
+ if (result == 1) {
+ /* I have been allocated this one */
+ break;
+- }
+- else if (result > 1) {
++ } else if (result > 1) {
+ /* I have a free register pair */
+ free_reg = reg;
+ }
+@@ -473,8 +511,7 @@ static void amdfam10_set_resource(device_t dev, struct resource *resource,
+
+ set_io_addr_reg(dev, nodeid, link_num, reg, rbase>>8, rend>>8);
+ store_conf_io_addr(nodeid, link_num, reg, (resource->index >> 24), rbase>>8, rend>>8);
+- }
+- else if (resource->flags & IORESOURCE_MEM) {
++ } else if (resource->flags & IORESOURCE_MEM) {
+ set_mmio_addr_reg(nodeid, link_num, reg, (resource->index >>24), rbase>>8, rend>>8, sysconf.nodes) ;// [39:8]
+ store_conf_mmio_addr(nodeid, link_num, reg, (resource->index >>24), rbase>>8, rend>>8);
+ }
+@@ -799,8 +836,7 @@ static void amdfam10_domain_set_resources(device_t dev)
+ }
+ if ((basek + sizek) <= 4*1024*1024) {
+ sizek = 0;
+- }
+- else {
++ } else {
+ basek = 4*1024*1024;
+ sizek -= (4*1024*1024 - mmio_basek);
+ }
+@@ -977,8 +1013,7 @@ static int amdfam10_get_smbios_data17(int* count, int handle, int parent_handle,
+ if (dimm_size_bytes > 0x800000000) {
+ t->size = 0x7FFF;
+ t->extended_size = dimm_size_bytes;
+- }
+- else {
++ } else {
+ t->size = dimm_size_bytes / (1024*1024);
+ t->size &= (~0x8000); /* size specified in megabytes */
+ }
+@@ -1005,8 +1040,7 @@ static int amdfam10_get_smbios_data17(int* count, int handle, int parent_handle,
+ t->part_number = smbios_add_string(t->eos, mem_info->dct_stat[node].DimmPartNumber[slot]);
+ if (mem_info->dct_stat[node].DimmSerialNumber[slot] == 0) {
+ t->serial_number = smbios_add_string(t->eos, "None");
+- }
+- else {
++ } else {
+ snprintf(string_buffer, sizeof (string_buffer), "%08X", mem_info->dct_stat[node].DimmSerialNumber[slot]);
+ t->serial_number = smbios_add_string(t->eos, string_buffer);
+ }
+@@ -1108,8 +1142,7 @@ static void add_more_links(device_t dev, unsigned total_links)
+ memset(link, 0, links*sizeof(*link));
+ last->next = link;
+ }
+- }
+- else {
++ } else {
+ link = malloc(total_links*sizeof(*link));
+ memset(link, 0, total_links*sizeof(*link));
+ dev->link_list = link;
+@@ -1244,6 +1277,10 @@ static void cpu_bus_scan(device_t dev)
+ unsigned busn, devn;
+ struct bus *pbus;
+
++ uint8_t rev_gte_d = 0;
++ uint8_t dual_node = 0;
++ uint32_t f3xe8;
++
+ busn = CONFIG_CBB;
+ devn = CONFIG_CDB+i;
+ pbus = dev_mc->bus;
+@@ -1268,6 +1305,7 @@ static void cpu_bus_scan(device_t dev)
+ }
+ }
+
++
+ /* Ok, We need to set the links for that device.
+ * otherwise the device under it will not be scanned
+ */
+@@ -1279,6 +1317,17 @@ static void cpu_bus_scan(device_t dev)
+ if (cdb_dev)
+ add_more_links(cdb_dev, 4);
+
++ f3xe8 = pci_read_config32(get_node_pci(0, 3), 0xe8);
++
++ if (cpuid_eax(0x80000001) >= 0x8)
++ /* Revision D or later */
++ rev_gte_d = 1;
++
++ if (rev_gte_d)
++ /* Check for dual node capability */
++ if (f3xe8 & 0x20000000)
++ dual_node = 1;
++
+ cores_found = 0; // one core
+ cdb_dev = dev_find_slot(busn, PCI_DEVFN(devn, 3));
+ int enable_node = cdb_dev && cdb_dev->enabled;
+@@ -1290,6 +1339,9 @@ static void cpu_bus_scan(device_t dev)
+ printk(BIOS_DEBUG, " %s siblings=%d\n", dev_path(cdb_dev), cores_found);
+ }
+
++ if (siblings > cores_found)
++ siblings = cores_found;
++
+ u32 jj;
+ if(disable_siblings) {
+ jj = 0;
+@@ -1299,7 +1351,20 @@ static void cpu_bus_scan(device_t dev)
+ }
+
+ for (j = 0; j <=jj; j++ ) {
+- u32 apic_id = i * (nb_cfg_54?(siblings+1):1) + j * (nb_cfg_54?1:64); // ?
++ u32 apic_id;
++
++ if (dual_node) {
++ apic_id = 0;
++ if (nb_cfg_54) {
++ apic_id |= ((i >> 1) & 0x3) << 4; /* Node ID */
++ apic_id |= ((i & 0x1) * (siblings + 1)) + j; /* Core ID */
++ } else {
++ apic_id |= i & 0x3; /* Node ID */
++ apic_id |= (((i & 0x1) * (siblings + 1)) + j) << 4; /* Core ID */
++ }
++ } else {
++ apic_id = i * (nb_cfg_54?(siblings+1):1) + j * (nb_cfg_54?1:64); // ?
++ }
+
+ #if CONFIG_ENABLE_APIC_EXT_ID && (CONFIG_APIC_ID_OFFSET>0)
+ if(sysconf.enabled_apic_ext_id) {
+@@ -1311,7 +1376,7 @@ static void cpu_bus_scan(device_t dev)
+ device_t cpu = add_cpu_device(cpu_bus, apic_id, enable_node);
+ if (cpu)
+ amd_cpu_topology(cpu, i, j);
+- } //j
++ }
+ }
+ }
+
+@@ -1356,8 +1421,7 @@ static void root_complex_enable_dev(struct device *dev)
+ /* Set the operations if it is a special bus type */
+ if (dev->path.type == DEVICE_PATH_DOMAIN) {
+ dev->ops = &pci_domain_ops;
+- }
+- else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
++ } else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
+ dev->ops = &cpu_bus_ops;
+ }
+ }
+diff --git a/src/northbridge/amd/amdht/ht_wrapper.c b/src/northbridge/amd/amdht/ht_wrapper.c
+index 36fe60b..389b1b1 100644
+--- a/src/northbridge/amd/amdht/ht_wrapper.c
++++ b/src/northbridge/amd/amdht/ht_wrapper.c
+@@ -22,6 +22,8 @@
+ #include <console/console.h>
+ #include <northbridge/amd/amdfam10/amdfam10.h>
+
++#include "ht_wrapper.h"
++
+ /*----------------------------------------------------------------------------
+ * TYPEDEFS, DEFINITIONS AND MACROS
+ *
+@@ -113,6 +115,20 @@ void getAmdTopolist(u8 ***p)
+ *p = (u8 **)amd_topo_list;
+ }
+
++/**
++ * BOOL AMD_CB_IgnoreLink(u8 Node, u8 Link)
++ * Description:
++ * This routine is used to ignore connected yet faulty HT links,
++ * such as those present in a G34 processor package.
++ *
++ * Parameters:
++ * @param[in] node = The node on which this chain is located
++ * @param[in] link = The link on the host for this chain
++ */
++static BOOL AMD_CB_IgnoreLink (u8 node, u8 link)
++{
++ return 0;
++}
+
+ /**
+ * void amd_ht_init(struct sys_info *sysinfo)
+@@ -128,7 +144,7 @@ static void amd_ht_init(struct sys_info *sysinfo)
+ 0, // u8 AutoBusStart;
+ 32, // u8 AutoBusMax;
+ 6, // u8 AutoBusIncrement;
+- NULL, // BOOL (*AMD_CB_IgnoreLink)();
++ AMD_CB_IgnoreLink, // BOOL (*AMD_CB_IgnoreLink)();
+ NULL, // BOOL (*AMD_CB_OverrideBusNumbers)();
+ AMD_CB_ManualBUIDSwapList, // BOOL (*AMD_CB_ManualBUIDSwapList)();
+ NULL, // void (*AMD_CB_DeviceCapOverride)();
+@@ -146,6 +162,93 @@ static void amd_ht_init(struct sys_info *sysinfo)
+ printk(BIOS_DEBUG, "Enter amd_ht_init()\n");
+ amdHtInitialize(&ht_wrapper);
+ printk(BIOS_DEBUG, "Exit amd_ht_init()\n");
++}
+
+-
++/**
++ * void amd_ht_fixup(struct sys_info *sysinfo)
++ *
++ * AMD HT fixup
++ *
++ */
++void amd_ht_fixup(struct sys_info *sysinfo) {
++ printk(BIOS_DEBUG, "amd_ht_fixup()\n");
++ if (IS_ENABLED(CONFIG_CPU_AMD_MODEL_10XXX)) {
++ uint8_t rev_gte_d = 0;
++ uint8_t dual_node = 0;
++ uint32_t f3xe8;
++ uint32_t family;
++ uint32_t model;
++
++ family = model = cpuid_eax(0x80000001);
++ model = ((model & 0xf0000) >> 16) | ((model & 0xf0) >> 4);
++
++ if (model >= 0x8)
++ /* Revision D or later */
++ rev_gte_d = 1;
++
++ if (rev_gte_d) {
++ f3xe8 = pci_read_config32(NODE_PCI(0, 3), 0xe8);
++
++ /* Check for dual node capability */
++ if (f3xe8 & 0x20000000)
++ dual_node = 1;
++
++ if (dual_node) {
++ /* Each G34 processor contains a defective HT link.
++ * See the BKDG Rev 3.62 section 2.7.1.5 for details.
++ */
++ uint8_t node;
++ uint8_t node_count = get_nodes();
++ uint32_t dword;
++ for (node = 0; node < node_count; node++) {
++ f3xe8 = pci_read_config32(NODE_PCI(node, 3), 0xe8);
++ uint8_t internal_node_number = ((f3xe8 & 0xc0000000) >> 30);
++ printk(BIOS_DEBUG, "amd_ht_fixup(): node %d (internal node ID %d): disabling defective HT link\n", node, internal_node_number);
++ if (internal_node_number == 0) {
++ uint8_t package_link_3_connected = pci_read_config32(NODE_PCI(node, 0), 0xd8) & 0x1;
++ if (package_link_3_connected) {
++ /* Set WidthIn and WidthOut to 0 */
++ dword = pci_read_config32(NODE_PCI(node, 0), 0xc4);
++ dword &= ~0x77000000;
++ pci_write_config32(NODE_PCI(node, 0), 0xc4, dword);
++ /* Set Ganged to 1 */
++ dword = pci_read_config32(NODE_PCI(node, 0), 0x178);
++ dword |= 0x00000001;
++ pci_write_config32(NODE_PCI(node, 0), 0x178, dword);
++ } else {
++ /* Set ConnDly to 1 */
++ dword = pci_read_config32(NODE_PCI(node, 0), 0x16c);
++ dword |= 0x00000100;
++ pci_write_config32(NODE_PCI(node, 0), 0x16c, dword);
++ /* Set TransOff and EndOfChain to 1 */
++ dword = pci_read_config32(NODE_PCI(node, 4), 0xc4);
++ dword |= 0x000000c0;
++ pci_write_config32(NODE_PCI(node, 4), 0xc4, dword);
++ }
++ } else if (internal_node_number == 1) {
++ uint8_t package_link_3_connected = pci_read_config32(NODE_PCI(node, 0), 0xb8) & 0x1;
++ if (package_link_3_connected) {
++ /* Set WidthIn and WidthOut to 0 */
++ dword = pci_read_config32(NODE_PCI(node, 0), 0xa4);
++ dword &= ~0x77000000;
++ pci_write_config32(NODE_PCI(node, 0), 0xa4, dword);
++ /* Set Ganged to 1 */
++ dword = pci_read_config32(NODE_PCI(node, 0), 0x174);
++ dword |= 0x00000001;
++ pci_write_config32(NODE_PCI(node, 0), 0x174, dword);
++ } else {
++ /* Set ConnDly to 1 */
++ dword = pci_read_config32(NODE_PCI(node, 0), 0x16c);
++ dword |= 0x00000100;
++ pci_write_config32(NODE_PCI(node, 0), 0x16c, dword);
++ /* Set TransOff and EndOfChain to 1 */
++ dword = pci_read_config32(NODE_PCI(node, 4), 0xa4);
++ dword |= 0x000000c0;
++ pci_write_config32(NODE_PCI(node, 4), 0xa4, dword);
++ }
++ }
++ }
++ }
++ }
++ }
+ }
+diff --git a/src/northbridge/amd/amdht/ht_wrapper.h b/src/northbridge/amd/amdht/ht_wrapper.h
+new file mode 100644
+index 0000000..3e9d957
+--- /dev/null
++++ b/src/northbridge/amd/amdht/ht_wrapper.h
+@@ -0,0 +1,25 @@
++/*
++ * This file is part of the coreboot project.
++ *
++ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; version 2 of the License.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc.
++ */
++
++#ifndef AMD_HT_WRAPPER_H
++#define AMD_HT_WRAPPER_H
++
++void amd_ht_fixup(struct sys_info *sysinfo);
++
++#endif
+--
+1.7.9.5
+