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, 114 insertions, 0 deletions

diff --git a/src/southbridge/intel/fsp_bd82x6x/elog.c b/src/southbridge/intel/fsp_bd82x6x/elog.c
new file mode 100644
index 0000000000..09dfcdbc2c
--- /dev/null
+++ b/src/southbridge/intel/fsp_bd82x6x/elog.c
@@ -0,0 +1,114 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 The ChromiumOS 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 <arch/acpi.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ops.h>
+#include <stdint.h>
+#include <string.h>
+#include <elog.h>
+#include "pch.h"
+
+void pch_log_state(void)
+{
+	u16 pm1_sts, gen_pmcon_3, tco2_sts;
+	u32 gpe0_sts, gpe0_en;
+	u8 gen_pmcon_2;
+	int i;
+	struct device *lpc = dev_find_slot(0, PCI_DEVFN(0x1f, 0));
+	if (!lpc)
+		return;
+
+	pm1_sts = inw(DEFAULT_PMBASE + PM1_STS);
+	gpe0_sts = inl(DEFAULT_PMBASE + GPE0_STS);
+	gpe0_en = inl(DEFAULT_PMBASE + GPE0_EN);
+	tco2_sts = inw(DEFAULT_PMBASE + TCO2_STS);
+	gen_pmcon_2 = pci_read_config8(lpc, GEN_PMCON_2);
+	gen_pmcon_3 = pci_read_config16(lpc, GEN_PMCON_3);
+
+	/* PWR_FLR Power Failure */
+	if (gen_pmcon_2 & (1 << 0))
+		elog_add_event(ELOG_TYPE_POWER_FAIL);
+
+	/* SUS Well Power Failure */
+	if (gen_pmcon_3 & (1 << 14))
+		elog_add_event(ELOG_TYPE_SUS_POWER_FAIL);
+
+	/* SYS_PWROK Failure */
+	if (gen_pmcon_2 & (1 << 1))
+		elog_add_event(ELOG_TYPE_SYS_PWROK_FAIL);
+
+	/* PWROK Failure */
+	if (gen_pmcon_2 & (1 << 0))
+		elog_add_event(ELOG_TYPE_PWROK_FAIL);
+
+	/* Second TCO Timeout */
+	if (tco2_sts & (1 << 1))
+		elog_add_event(ELOG_TYPE_TCO_RESET);
+
+	/* Power Button Override */
+	if (pm1_sts & (1 << 11))
+		elog_add_event(ELOG_TYPE_POWER_BUTTON_OVERRIDE);
+
+	/* System Reset Status (reset button pushed) */
+	if (gen_pmcon_2 & (1 << 4))
+		elog_add_event(ELOG_TYPE_RESET_BUTTON);
+
+	/* General Reset Status */
+	if (gen_pmcon_3 & (1 << 9))
+		elog_add_event(ELOG_TYPE_SYSTEM_RESET);
+
+	/* ACPI Wake */
+	if (pm1_sts & (1 << 15))
+		elog_add_event_byte(ELOG_TYPE_ACPI_WAKE,
+				    acpi_slp_type == 3 ? 3 : 5);
+
+	/*
+	 * Wake sources
+	 */
+
+	/* RTC */
+	if (pm1_sts & (1 << 10))
+		elog_add_event_wake(ELOG_WAKE_SOURCE_RTC, 0);
+
+	/* PCI Express (TODO: determine wake device) */
+	if (pm1_sts & (1 << 14))
+		elog_add_event_wake(ELOG_WAKE_SOURCE_PCIE, 0);
+
+	/* PME (TODO: determine wake device) */
+	if (gpe0_sts & (1 << 13))
+		elog_add_event_wake(ELOG_WAKE_SOURCE_PME, 0);
+
+	/* Internal PME (TODO: determine wake device) */
+	if (gpe0_sts & (1 << 13))
+		elog_add_event_wake(ELOG_WAKE_SOURCE_PME_INTERNAL, 0);
+
+	/* GPIO 0-15 */
+	for (i = 0; i < 16; i++) {
+		if ((gpe0_sts & (1 << (16+i))) && (gpe0_en & (1 << (16+i))))
+			elog_add_event_wake(ELOG_WAKE_SOURCE_GPIO, i);
+	}
+
+	/* SMBUS Wake */
+	if (gpe0_sts & (1 << 7))
+		elog_add_event_wake(ELOG_WAKE_SOURCE_SMBUS, 0);
+}