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Diffstat (limited to 'src/southbridge/intel/common/early_smbus.h')
-rw-r--r--src/southbridge/intel/common/early_smbus.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/southbridge/intel/common/early_smbus.h b/src/southbridge/intel/common/early_smbus.h
new file mode 100644
index 0000000000..d6a7cbbcce
--- /dev/null
+++ b/src/southbridge/intel/common/early_smbus.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef SOUTHBRIDGE_INTEL_COMMON_EARLY_SMBUS_H
+#define SOUTHBRIDGE_INTEL_COMMON_EARLY_SMBUS_H
+
+#include <device/pci_def.h>
+
+#define PCI_DEV_SMBUS PCI_DEV(0, 0x1f, 3)
+
+#define SMB_BASE PCI_BASE_ADDRESS_4
+#define HOSTC 0x40
+
+/* HOSTC bits */
+#define I2C_EN (1 << 2)
+#define SMB_SMI_EN (1 << 1)
+#define HST_EN (1 << 0)
+
+#endif /* SOUTHBRIDGE_INTEL_COMMON_EARLY_SMBUS_H */