Add Intel FSP bd82x6x southbridge support

Add support for the bd82x6x using the Intel FSP.
The FSP is different enough to warrant its own source files
for now. The mrc/system agent chromebook solution does much more
southbridge initialization and configuration than the FSP version.
It may be combined in the future.

Change-Id: Ie493945f3d321d854728d231979a0c172d2b36de
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-on: http://review.coreboot.org/4017
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 64 insertions, 0 deletions

diff --git a/src/southbridge/intel/fsp_bd82x6x/finalize.c b/src/southbridge/intel/fsp_bd82x6x/finalize.c
new file mode 100644
index 0000000000..2af7045836
--- /dev/null
+++ b/src/southbridge/intel/fsp_bd82x6x/finalize.c
@@ -0,0 +1,64 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 The Chromium OS Authors. All rights reserved.
+ *
+ * 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 <arch/io.h>
+#include <console/post_codes.h>
+#include "pch.h"
+#include <spi-generic.h>
+
+void intel_pch_finalize_smm(void)
+{
+	/* Set SPI opcode menu */
+	RCBA16(0x3894) = SPI_OPPREFIX;
+	RCBA16(0x3896) = SPI_OPTYPE;
+	RCBA32(0x3898) = SPI_OPMENU_LOWER;
+	RCBA32(0x389c) = SPI_OPMENU_UPPER;
+
+	/* Lock SPIBAR */
+	RCBA32_OR(0x3804, (1 << 15));
+
+#if CONFIG_SPI_FLASH_SMM
+	/* Re-init SPI driver to handle locked BAR */
+	spi_init();
+#endif
+
+	/* TCLOCKDN: TC Lockdown */
+	RCBA32_OR(0x0050, (1 << 31));
+
+	/* BIOS Interface Lockdown */
+	RCBA32_OR(0x3410, (1 << 0));
+
+	/* Function Disable SUS Well Lockdown */
+	RCBA_AND_OR(8, 0x3420, ~0U, (1 << 7));
+
+	/* Global SMI Lock */
+	pcie_or_config16(PCH_LPC_DEV, 0xa0, 1 << 4);
+
+	/* GEN_PMCON Lock */
+	pcie_or_config8(PCH_LPC_DEV, 0xa6, (1 << 1) | (1 << 2));
+
+	/* R/WO registers */
+	RCBA32(0x21a4) = RCBA32(0x21a4);
+	pcie_write_config32(PCI_DEV(0, 27, 0), 0x74,
+		    pcie_read_config32(PCI_DEV(0, 27, 0), 0x74));
+
+	/* Indicate finalize step with post code */
+	outb(POST_OS_BOOT, 0x80);
+}