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-rw-r--r--include/acpi/acpi_table.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/acpi/acpi_table.h b/include/acpi/acpi_table.h
index 4895366a618..ac50ea10312 100644
--- a/include/acpi/acpi_table.h
+++ b/include/acpi/acpi_table.h
@@ -674,6 +674,7 @@ struct __packed acpi_dmar {
#define ACPI_DBG2_ARM_SBSA_GENERIC 0x000E
#define ACPI_DBG2_ARM_DCC 0x000F
#define ACPI_DBG2_BCM2835 0x0010
+#define ACPI_DBG2_16550_WITH_GAS 0x0012 /* 16550-compatible UART with GAS */
#define ACPI_DBG2_1394_STANDARD 0x0000