AGESA: Add amd_initcpuio() and amd_initmmio()

These are not wrappers for AGESA as they do not enter vendorcode at all.
We expect most of the added fixme.c file to be written without use of AMDLIB.h
and parts relocated as northbridge enable_resources().

Change-Id: Iba6d59e2a7672349208e9a65fcd2cb1094ab7d50
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7815
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

1 files changed, 91 insertions, 0 deletions

diff --git a/src/cpu/amd/agesa/family15tn/fixme.c b/src/cpu/amd/agesa/family15tn/fixme.c
new file mode 100644
index 0000000000..f032f02fdb
--- /dev/null
+++ b/src/cpu/amd/agesa/family15tn/fixme.c
@@ -0,0 +1,91 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 - 2012 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 <cpu/x86/mtrr.h>
+#include <northbridge/amd/agesa/agesawrapper.h>
+#include "amdlib.h"
+
+void amd_initcpuio(void)
+{
+	UINT64                        MsrReg;
+	UINT32                        PciData;
+	PCI_ADDR                      PciAddress;
+	AMD_CONFIG_PARAMS             StdHeader;
+
+	/* Enable legacy video routing: D18F1xF4 VGA Enable */
+	PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18, 1, 0xF4);
+	PciData = 1;
+	LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
+
+	/* The platform BIOS needs to ensure the memory ranges of Hudson legacy
+	 * devices (TPM, HPET, BIOS RAM, Watchdog Timer, I/O APIC and ACPI) are
+	 * set to non-posted regions.
+	 */
+	PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18, 1, 0x84);
+	PciData = 0x00FEDF00; /* last address before processor local APIC at FEE00000 */
+	PciData |= 1 << 7;    /* set NP (non-posted) bit */
+	LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
+	PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18, 1, 0x80);
+	PciData = (0xFED00000 >> 8) | 3; /* lowest NP address is HPET at FED00000 */
+	LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
+
+	/* Map the remaining PCI hole as posted MMIO */
+	PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18, 1, 0x8C);
+	PciData = 0x00FECF00; /* last address before non-posted range */
+	LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
+	LibAmdMsrRead (0xC001001A, &MsrReg, &StdHeader);
+	MsrReg = (MsrReg >> 8) | 3;
+	PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18, 1, 0x88);
+	PciData = (UINT32)MsrReg;
+	LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
+
+	/* Send all IO (0000-FFFF) to southbridge. */
+	PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18, 1, 0xC4);
+	PciData = 0x0000F000;
+	LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
+	PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18, 1, 0xC0);
+	PciData = 0x00000003;
+	LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
+}
+
+void amd_initmmio(void)
+{
+	UINT64                        MsrReg;
+	AMD_CONFIG_PARAMS             StdHeader;
+
+	/*
+	  Set the MMIO Configuration Base Address and Bus Range onto MMIO configuration base
+	  Address MSR register.
+	*/
+	MsrReg = CONFIG_MMCONF_BASE_ADDRESS | (LibAmdBitScanReverse (CONFIG_MMCONF_BUS_NUMBER) << 2) | 1;
+	LibAmdMsrWrite (0xC0010058, &MsrReg, &StdHeader);
+
+	/*
+	  Set the NB_CFG MSR register. Enable CF8 extended configuration cycles.
+	*/
+	LibAmdMsrRead (0xC001001F, &MsrReg, &StdHeader);
+	MsrReg = MsrReg | 0x0000400000000000;
+	LibAmdMsrWrite (0xC001001F, &MsrReg, &StdHeader);
+
+	/* Set ROM cache onto WP to decrease post time */
+	MsrReg = (0x0100000000ull - CACHE_ROM_SIZE) | 5ull;
+	LibAmdMsrWrite (0x20C, &MsrReg, &StdHeader);
+	MsrReg = ((1ULL << CONFIG_CPU_ADDR_BITS) - CACHE_ROM_SIZE) | 0x800ull;
+	LibAmdMsrWrite (0x20D, &MsrReg, &StdHeader);
+}