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-rw-r--r--src/soc/intel/apollolake/include/soc/lpc.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/soc/intel/apollolake/include/soc/lpc.h b/src/soc/intel/apollolake/include/soc/lpc.h
index 7e3d74aaf6..da918a16b4 100644
--- a/src/soc/intel/apollolake/include/soc/lpc.h
+++ b/src/soc/intel/apollolake/include/soc/lpc.h
@@ -29,8 +29,11 @@
* IO decode enable macros are in the format IO_<peripheral>_<IO port>.
* For example, to open ports 0x60, 0x64 for the keyboard controller,
* use IOE_KBC_60_64 macro. For IOE_ macros that do not specify a port range,
- * the port range is selectable via the IO decodes register (not referenced).
+ * the port range is selectable via the IO decodes register.
*/
+#define REG_IO_DECODE 0x80
+#define IOD_COMA_RANGE (0 << 0) /* 0x3F8 - 0x3FF COMA*/
+#define IOD_COMB_RANGE (1 << 4) /* 0x2F8 - 0x2FF COMB*/
#define REG_IO_ENABLES 0x82
#define IOE_EC_4E_4F (1 << 13)
#define IOE_SUPERIO_2E_2F (1 << 12)