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authorKyösti Mälkki <kyosti.malkki@gmail.com>2013-09-07 11:38:56 +0300
committerKyösti Mälkki <kyosti.malkki@gmail.com>2013-09-21 06:20:02 +0200
commite28bd4ade6f716024afdff0bac48028a42a62e71 (patch)
tree518e4b663acf7e9bd7b09646c4a976e85c765173 /src/southbridge/intel/i82801gx
parentc8883262cf1375616743ba9d1f259b4fcda20d72 (diff)
timestamps intel: Move timestamp scratchpad to chipset
This retrieves back the value stored with store_initial_timestamp() in the bootblock for southbridge. Change-Id: I377c823706c33ed65af023d20d2e4323edd31199 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3908 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-by: Aaron Durbin <adurbin@google.com>
Diffstat (limited to 'src/southbridge/intel/i82801gx')
-rw-r--r--src/southbridge/intel/i82801gx/Makefile.inc3
-rw-r--r--src/southbridge/intel/i82801gx/early_lpc.c33
2 files changed, 34 insertions, 2 deletions
diff --git a/src/southbridge/intel/i82801gx/Makefile.inc b/src/southbridge/intel/i82801gx/Makefile.inc
index ff9fbee71d..94c84ed23e 100644
--- a/src/southbridge/intel/i82801gx/Makefile.inc
+++ b/src/southbridge/intel/i82801gx/Makefile.inc
@@ -36,5 +36,4 @@ ramstage-y += watchdog.c
ramstage-$(CONFIG_HAVE_SMI_HANDLER) += smi.c
smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c
-romstage-y += early_smbus.c
-
+romstage-y += early_smbus.c early_lpc.c
diff --git a/src/southbridge/intel/i82801gx/early_lpc.c b/src/southbridge/intel/i82801gx/early_lpc.c
new file mode 100644
index 0000000000..9f80d41aa4
--- /dev/null
+++ b/src/southbridge/intel/i82801gx/early_lpc.c
@@ -0,0 +1,33 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008-2009 coresystems GmbH
+ *
+ * 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 <timestamp.h>
+
+#if CONFIG_COLLECT_TIMESTAMPS
+tsc_t get_initial_timestamp(void)
+{
+ tsc_t base_time = {
+ .lo = pci_read_config32(PCI_DEV(0, 0x00, 0), 0xdc),
+ .hi = pci_read_config32(PCI_DEV(0, 0x1f, 2), 0xd0)
+ };
+ return base_time;
+}
+#endif