soc/intel/cannonlake: Install common i2c

Add common i2c support for cannonlake.

TEST=N/A

Change-Id: I5c60b0579f9e6050308896dcb13dda0bbb724d2b
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/22238
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 81 insertions, 0 deletions

diff --git a/src/soc/intel/cannonlake/i2c.c b/src/soc/intel/cannonlake/i2c.c
new file mode 100644
index 0000000000..b0c35238ee
--- /dev/null
+++ b/src/soc/intel/cannonlake/i2c.c
@@ -0,0 +1,81 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 Google Inc.
+ * Copyright (C) 2017 Intel Corporation.
+ *
+ * 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 <console/console.h>
+#include <device/device.h>
+#include <device/pci_def.h>
+#include <intelblocks/lpss_i2c.h>
+#include <soc/iomap.h>
+#include <soc/pci_devs.h>
+#include "chip.h"
+
+const struct lpss_i2c_bus_config *i2c_get_soc_cfg(unsigned int bus,
+					const struct device *dev)
+{
+	const struct soc_intel_cannonlake_config *config;
+	if (!dev || !dev->chip_info) {
+		printk(BIOS_ERR, "%s: Could not find SoC devicetree config!\n",
+		       __func__);
+		return NULL;
+	}
+
+	config = dev->chip_info;
+
+	return &config->i2c[bus];
+}
+
+uintptr_t i2c_get_soc_early_base(unsigned int bus)
+{
+	return EARLY_I2C_BASE(bus);
+}
+
+int i2c_soc_devfn_to_bus(unsigned int devfn)
+{
+	switch (devfn) {
+	case PCH_DEVFN_I2C0:
+		return 0;
+	case PCH_DEVFN_I2C1:
+		return 1;
+	case PCH_DEVFN_I2C2:
+		return 2;
+	case PCH_DEVFN_I2C3:
+		return 3;
+	case PCH_DEVFN_I2C4:
+		return 4;
+	case PCH_DEVFN_I2C5:
+		return 5;
+	}
+	return -1;
+}
+
+int i2c_soc_bus_to_devfn(unsigned int bus)
+{
+	switch (bus) {
+	case 0:
+		return PCH_DEVFN_I2C0;
+	case 1:
+		return PCH_DEVFN_I2C1;
+	case 2:
+		return PCH_DEVFN_I2C2;
+	case 3:
+		return PCH_DEVFN_I2C3;
+	case 4:
+		return PCH_DEVFN_I2C4;
+	case 5:
+		return PCH_DEVFN_I2C5;
+	}
+	return -1;
+}