soc/intel/common/block/lpc: Add lpc_get_fixed_io_decode
Add function to return the fixed io decode ranges contained in register
0x80 of the LPC interface.
BUG=N/A
TEST=build
Change-Id: Ie46d7c9d7a399a8489c030d906f75ba61db19cc4
Signed-off-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38745
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/common/block/lpc/lpc_lib.c b/src/soc/intel/common/block/lpc/lpc_lib.c
index bc89e4c..3ad2176 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 @@
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 ...