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-rw-r--r--src/soc/amd/stoneyridge/include/soc/southbridge.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/soc/amd/stoneyridge/include/soc/southbridge.h b/src/soc/amd/stoneyridge/include/soc/southbridge.h
index 9f8a7d2f4b..3127f5cd47 100644
--- a/src/soc/amd/stoneyridge/include/soc/southbridge.h
+++ b/src/soc/amd/stoneyridge/include/soc/southbridge.h
@@ -34,6 +34,7 @@
/* Power management registers: 0xfed80300 or index/data at IO 0xcd6/cd7 */
#define PM_DECODE_EN 0x00
#define CF9_IO_EN BIT(1)
+#define LEGACY_IO_EN BIT(0)
#define PM_ISA_CONTROL 0x04
#define MMIO_EN BIT(1)
#define PM_PCI_CTRL 0x08