soc/intel/skylake: Use Broadwell as comparision base for Skylake SOC

Use the Broadwell implementation as the comparison base for Skylake.

BRANCH=none
BUG=None
TEST=None

Change-Id: I22eb55ea89eb0d6883f98e4c72a6d243e819e6d8
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: http://review.coreboot.org/10340
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

1 files changed, 126 insertions, 0 deletions

diff --git a/src/soc/intel/skylake/finalize.c b/src/soc/intel/skylake/finalize.c
new file mode 100644
index 0000000000..bf5cdcd9bf
--- /dev/null
+++ b/src/soc/intel/skylake/finalize.c
@@ -0,0 +1,126 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google 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 <arch/io.h>
+#include <bootstate.h>
+#include <console/console.h>
+#include <console/post_codes.h>
+#include <cpu/x86/smm.h>
+#include <reg_script.h>
+#include <spi-generic.h>
+#include <stdlib.h>
+#include <soc/pci_devs.h>
+#include <soc/lpc.h>
+#include <soc/me.h>
+#include <soc/rcba.h>
+#include <soc/spi.h>
+#include <soc/systemagent.h>
+
+const struct reg_script system_agent_finalize_script[] = {
+	REG_PCI_OR16(0x50, 1 << 0),				/* GGC */
+	REG_PCI_OR32(0x5c, 1 << 0),				/* DPR */
+	REG_PCI_OR32(0x78, 1 << 10),				/* ME */
+	REG_PCI_OR32(0x90, 1 << 0),				/* REMAPBASE */
+	REG_PCI_OR32(0x98, 1 << 0),				/* REMAPLIMIT */
+	REG_PCI_OR32(0xa0, 1 << 0),				/* TOM */
+	REG_PCI_OR32(0xa8, 1 << 0),				/* TOUUD */
+	REG_PCI_OR32(0xb0, 1 << 0),				/* BDSM */
+	REG_PCI_OR32(0xb4, 1 << 0),				/* BGSM */
+	REG_PCI_OR32(0xb8, 1 << 0),				/* TSEGMB */
+	REG_PCI_OR32(0xbc, 1 << 0),				/* TOLUD */
+	REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x5500, 1 << 0),	/* PAVP */
+	REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x5f00, 1 << 31),	/* SA PM */
+	REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x6020, 1 << 0),	/* UMA GFX */
+	REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x63fc, 1 << 0),	/* VTDTRK */
+	REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x6800, 1 << 31),
+	REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x7000, 1 << 31),
+	REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x77fc, 1 << 0),
+	REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x50fc, 0x8f),
+	REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x7ffc, 1 << 0),
+	REG_MMIO_OR32(MCH_BASE_ADDRESS + 0x5880, 1 << 5),
+	REG_MMIO_WRITE8(MCH_BASE_ADDRESS + 0x50fc, 0x8f),	/* MC */
+
+	REG_SCRIPT_END
+};
+
+const struct reg_script pch_finalize_script[] = {
+	/* Set SPI opcode menu */
+	REG_MMIO_WRITE16(RCBA_BASE_ADDRESS + SPIBAR_OFFSET + SPIBAR_PREOP,
+			 SPI_OPPREFIX),
+	REG_MMIO_WRITE16(RCBA_BASE_ADDRESS + SPIBAR_OFFSET + SPIBAR_OPTYPE,
+			 SPI_OPTYPE),
+	REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + SPIBAR_OFFSET +
+			 SPIBAR_OPMENU_LOWER, SPI_OPMENU_LOWER),
+	REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + SPIBAR_OFFSET +
+			 SPIBAR_OPMENU_UPPER, SPI_OPMENU_UPPER),
+
+	/* Lock SPIBAR */
+	REG_MMIO_OR32(RCBA_BASE_ADDRESS + SPIBAR_OFFSET + SPIBAR_HSFS,
+		      SPIBAR_HSFS_FLOCKDN),
+
+	/* TC Lockdown */
+	REG_MMIO_OR32(RCBA_BASE_ADDRESS + 0x0050, (1 << 31)),
+
+	/* BIOS Interface Lockdown */
+	REG_MMIO_OR32(RCBA_BASE_ADDRESS + GCS, (1 << 0)),
+
+	/* Function Disable SUS Well Lockdown */
+	REG_MMIO_OR8(RCBA_BASE_ADDRESS + FDSW, (1 << 7)),
+
+	/* Global SMI Lock */
+	REG_PCI_OR16(GEN_PMCON_1, SMI_LOCK),
+
+	/* GEN_PMCON Lock */
+	REG_PCI_OR8(GEN_PMCON_LOCK, SLP_STR_POL_LOCK | ACPI_BASE_LOCK),
+
+	/* PMSYNC */
+	REG_MMIO_OR32(RCBA_BASE_ADDRESS + PMSYNC_CONFIG, (1 << 31)),
+
+
+	REG_SCRIPT_END
+};
+
+static void broadwell_finalize(void *unused)
+{
+	printk(BIOS_DEBUG, "Finalizing chipset.\n");
+
+	reg_script_run_on_dev(SA_DEV_ROOT, system_agent_finalize_script);
+	reg_script_run_on_dev(PCH_DEV_LPC, pch_finalize_script);
+
+	/* Lock */
+	RCBA32_OR(0x3a6c, 0x00000001);
+
+	/* Read+Write the following registers */
+	MCHBAR32(0x6030) = MCHBAR32(0x6030);
+	MCHBAR32(0x6034) = MCHBAR32(0x6034);
+	MCHBAR32(0x6008) = MCHBAR32(0x6008);
+	RCBA32(0x21a4) = RCBA32(0x21a4);
+
+	/* Re-init SPI after lockdown */
+	spi_init();
+
+	printk(BIOS_DEBUG, "Finalizing SMM.\n");
+	outb(APM_CNT_FINALIZE, APM_CNT);
+
+	/* Indicate finalize step with post code */
+	post_code(POST_OS_BOOT);
+}
+
+BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, broadwell_finalize, NULL);
+BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_LOAD, BS_ON_EXIT, broadwell_finalize, NULL);