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Diffstat (limited to 'src/mainboard/intel/leafhill/ec.c')
-rw-r--r--src/mainboard/intel/leafhill/ec.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/src/mainboard/intel/leafhill/ec.c b/src/mainboard/intel/leafhill/ec.c
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+++ b/src/mainboard/intel/leafhill/ec.c
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+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 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.
+ */
+
+#include <arch/acpi.h>
+#include <console/console.h>
+#include <ec/ec.h>
+#include <ec/google/chromeec/ec.h>
+#include <rules.h>
+#include <soc/lpc.h>
+#include <variant/ec.h>
+
+static void ramstage_ec_init(void)
+{
+ printk(BIOS_ERR, "mainboard: EC init\n");
+
+ if (acpi_is_wakeup_s3()) {
+ google_chromeec_log_events(MAINBOARD_EC_LOG_EVENTS |
+ MAINBOARD_EC_S3_WAKE_EVENTS);
+
+ /* Disable SMI and wake events */
+ google_chromeec_set_smi_mask(0);
+
+ /* Clear pending events */
+ while (google_chromeec_get_event() != 0)
+ ;
+
+ /* Restore SCI event mask */
+ google_chromeec_set_sci_mask(MAINBOARD_EC_SCI_EVENTS);
+ } else {
+ google_chromeec_log_events(MAINBOARD_EC_LOG_EVENTS |
+ MAINBOARD_EC_S5_WAKE_EVENTS);
+ }
+
+ /* Clear wake event mask */
+ google_chromeec_set_wake_mask(0);
+}
+
+static void bootblock_ec_init(void)
+{
+ uint16_t ec_ioport_base;
+ size_t ec_ioport_size;
+
+ /*
+ * Set up LPC decoding for the ChromeEC I/O port ranges:
+ * - Ports 62/66, 60/64, and 200->208
+ * - ChromeEC specific communication I/O ports.
+ */
+ lpc_enable_fixed_io_ranges(IOE_EC_62_66 | IOE_KBC_60_64 | IOE_LGE_200);
+ google_chromeec_ioport_range(&ec_ioport_base, &ec_ioport_size);
+ lpc_open_pmio_window(ec_ioport_base, ec_ioport_size);
+}
+
+void mainboard_ec_init(void)
+{
+ if (ENV_RAMSTAGE)
+ ramstage_ec_init();
+ else if (ENV_BOOTBLOCK)
+ bootblock_ec_init();
+}