Addition of Family12/SB900 wrapper code

This change adds the wrapper code for the AMD Family12
cpus and the AMD Hudson-2 (SB900) southbridge to the cpu,
northbridge and southbridge folders respectively.

Change-Id: I22b6efe0017d0af03eaa36a1db1615e5f38da06c
Signed-off-by: Frank Vibrans <frank.vibrans@amd.com>
Signed-off-by: efdesign98 <efdesign98@gmail.com>
Reviewed-on: http://review.coreboot.org/53
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 138 insertions, 0 deletions

diff --git a/src/cpu/amd/agesa/family12/model_12_init.c b/src/cpu/amd/agesa/family12/model_12_init.c
new file mode 100755
index 0000000000..d74b33308b
--- /dev/null
+++ b/src/cpu/amd/agesa/family12/model_12_init.c
@@ -0,0 +1,138 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Advanced Micro Devices, Inc.
+ *
+ * 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 <console/console.h>
+#include <cpu/x86/msr.h>
+#include <cpu/amd/mtrr.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <string.h>
+#include <cpu/x86/msr.h>
+#include <cpu/x86/pae.h>
+#include <pc80/mc146818rtc.h>
+#include <cpu/x86/lapic.h>
+
+#include <cpu/cpu.h>
+#include <cpu/x86/cache.h>
+#include <cpu/x86/mtrr.h>
+#include <cpu/amd/multicore.h>
+#include <cpu/amd/amdfam12.h>
+
+#define MCI_STATUS 0x401
+
+msr_t rdmsr_amd(u32 index)
+{
+  msr_t result;
+  __asm__ __volatile__(
+    "rdmsr"
+    :"=a"(result.lo), "=d"(result.hi)
+    :"c"(index), "D"(0x9c5a203a)
+  );
+  return result;
+}
+
+void wrmsr_amd(u32 index, msr_t msr)
+{
+  __asm__ __volatile__(
+    "wrmsr"
+    : /* No outputs */
+    :"c"(index), "a"(msr.lo), "d"(msr.hi), "D"(0x9c5a203a)
+  );
+}
+
+static void model_12_init(device_t dev)
+{
+  printk(BIOS_DEBUG, "Model 12 Init - a no-op.\n");
+
+  u8 i;
+  msr_t msr;
+  struct node_core_id id;
+#if CONFIG_LOGICAL_CPUS == 1
+  u32 siblings;
+#endif
+
+//  id = get_node_core_id(read_nb_cfg_54());  /* nb_cfg_54 can not be set */
+//  printk(BIOS_DEBUG, "nodeid = %02d, coreid = %02d\n", id.nodeid, id.coreid);
+
+  /* Turn on caching if we haven't already */
+  x86_enable_cache();
+  amd_setup_mtrrs();
+  x86_mtrr_check();
+
+  disable_cache();
+
+  /* zero the machine check error status registers */
+  msr.lo = 0;
+  msr.hi = 0;
+  for (i = 0; i < 5; i++) {
+    wrmsr(MCI_STATUS + (i * 4), msr);
+  }
+
+  enable_cache();
+
+  /* Enable the local cpu apics */
+  setup_lapic();
+
+  /* Set the processor name string */
+//  init_processor_name();
+
+
+#if CONFIG_LOGICAL_CPUS == 1
+  siblings = cpuid_ecx(0x80000008) & 0xff;
+
+  if (siblings > 0) {
+    msr = rdmsr_amd(CPU_ID_FEATURES_MSR);
+    msr.lo |= 1 << 28;
+    wrmsr_amd(CPU_ID_FEATURES_MSR, msr);
+
+    msr = rdmsr_amd(CPU_ID_EXT_FEATURES_MSR);
+    msr.hi |= 1 << (33 - 32);
+    wrmsr_amd(CPU_ID_EXT_FEATURES_MSR, msr);
+  }
+  printk(BIOS_DEBUG, "siblings = %02d, ", siblings);
+#endif
+
+  /* DisableCf8ExtCfg */
+  msr = rdmsr(NB_CFG_MSR);
+  msr.hi &= ~(1 << (46 - 32));
+  wrmsr(NB_CFG_MSR, msr);
+
+
+  /* Write protect SMM space with SMMLOCK. */
+  msr = rdmsr(HWCR_MSR);
+  msr.lo |= (1 << 0);
+  wrmsr(HWCR_MSR, msr);
+}
+
+static struct device_operations cpu_dev_ops = {
+  .init = model_12_init,
+};
+
+static struct cpu_device_id cpu_table[] = {
+  { X86_VENDOR_AMD, 0x300f00 },   /* LN1_A0x */
+  { X86_VENDOR_AMD, 0x300f01 },   /* LN1_A1x */
+  { X86_VENDOR_AMD, 0x300f10 },   /* LN1_B0x */
+  { X86_VENDOR_AMD, 0x300f20 },   /* LN2_B0x */
+  { 0, 0 },
+};
+
+static const struct cpu_driver model_12 __cpu_driver = {
+  .ops      = &cpu_dev_ops,
+  .id_table = cpu_table,
+};