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path: root/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.h
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Diffstat (limited to 'MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.h')
-rw-r--r--MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.h b/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.h
index 052e783..485b647 100644
--- a/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.h
+++ b/MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.h
@@ -26,6 +26,8 @@
#define EFI_AHCI_IS_OFFSET 0x0008
#define EFI_AHCI_PI_OFFSET 0x000C
+#define EFI_AHCI_MAX_PORTS 32
+
typedef struct {
UINT32 Lower32;
UINT32 Upper32;