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-rw-r--r--src/soc/amd/common/block/include/amdblocks/lpc.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/soc/amd/common/block/include/amdblocks/lpc.h b/src/soc/amd/common/block/include/amdblocks/lpc.h
index 173cbd15ff..558b608743 100644
--- a/src/soc/amd/common/block/include/amdblocks/lpc.h
+++ b/src/soc/amd/common/block/include/amdblocks/lpc.h
@@ -74,7 +74,7 @@
#define ROM_BASE_MASK 0xfffff000 /* bits 31-12 */
#define ROM_RANGE_WP BIT(10)
#define ROM_RANGE_RP BIT(9)
-#define RANGE_UNIT BIT(8)
+#define RANGE_UNIT BIT(8) /* 0: 4kiB, 1: 64kiB */
#define RANGE_ADDR_MASK 0x000000ff /* Range defined by bits 7-0 */
#define ROM_PROTECT_RANGE_REG(n) (ROM_PROTECT_RANGE0 + (4 * n))
#define MAX_ROM_PROTECT_RANGES 4