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-rw-r--r--src/soc/intel/common/block/include/intelblocks/lpc_lib.h2
-rw-r--r--src/soc/intel/common/block/lpc/lpc_lib.c5
2 files changed, 7 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/include/intelblocks/lpc_lib.h b/src/soc/intel/common/block/include/intelblocks/lpc_lib.h
index f77b8d5d71..cf6d8e9bdc 100644
--- a/src/soc/intel/common/block/include/intelblocks/lpc_lib.h
+++ b/src/soc/intel/common/block/include/intelblocks/lpc_lib.h
@@ -70,6 +70,8 @@ struct lpc_mmio_range {
* Output:I/O Enable Bits
*/
uint16_t lpc_enable_fixed_io_ranges(uint16_t io_enables);
+/* Return the current decode settings */
+uint16_t lpc_get_fixed_io_decode(void);
/* Open a generic IO window to the LPC bus. Four windows are available. */
void lpc_open_pmio_window(uint16_t base, uint16_t size);
/* Close all generic IO windows to the LPC bus. */
diff --git a/src/soc/intel/common/block/lpc/lpc_lib.c b/src/soc/intel/common/block/lpc/lpc_lib.c
index bc89e4ccae..3ad2176c11 100644
--- a/src/soc/intel/common/block/lpc/lpc_lib.c
+++ b/src/soc/intel/common/block/lpc/lpc_lib.c
@@ -37,6 +37,11 @@ uint16_t lpc_enable_fixed_io_ranges(uint16_t io_enables)
return io_enables;
}
+uint16_t lpc_get_fixed_io_decode(void)
+{
+ return pci_read_config16(PCH_DEV_LPC, LPC_IO_DECODE);
+}
+
/*
* Find the first unused IO window.
* Returns -1 if not found, 0 for reg 0x84, 1 for reg 0x88 ...