soc/intel/tigerlake: Add some helper macros for accessing TCSS DMA devices
Change-Id: I6289d2049fbbb6bb532be3d9e2355c563ec98d1b
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47410
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
diff --git a/src/soc/intel/tigerlake/include/soc/pci_devs.h b/src/soc/intel/tigerlake/include/soc/pci_devs.h
index cfb70cd..ac0498f 100644
--- a/src/soc/intel/tigerlake/include/soc/pci_devs.h
+++ b/src/soc/intel/tigerlake/include/soc/pci_devs.h
@@ -50,10 +50,12 @@
#define SA_DEV_TBT3 PCI_DEV(0, SA_DEV_SLOT_TBT, 3)
#define SA_DEV_SLOT_TCSS 0x0d
+#define NUM_TCSS_DMA_FUNCTIONS 2
+#define SA_DEVFN_TCSS_DMA(x) PCI_DEVFN(SA_DEV_SLOT_TCSS, ((x) + 2))
#define SA_DEVFN_TCSS_XHCI PCI_DEVFN(SA_DEV_SLOT_TCSS, 0)
#define SA_DEVFN_TCSS_XDCI PCI_DEVFN(SA_DEV_SLOT_TCSS, 1)
-#define SA_DEVFN_TCSS_DMA0 PCI_DEVFN(SA_DEV_SLOT_TCSS, 2)
-#define SA_DEVFN_TCSS_DMA1 PCI_DEVFN(SA_DEV_SLOT_TCSS, 3)
+#define SA_DEVFN_TCSS_DMA0 SA_DEVFN_TCSS_DMA(0)
+#define SA_DEVFN_TCSS_DMA1 SA_DEVFN_TCSS_DMA(1)
#define SA_DEV_TCSS_XHCI PCI_DEV(0, SA_DEV_SLOT_TCSS, 0)
#define SA_DEV_TCSS_XDCI PCI_DEV(0, SA_DEV_SLOT_TCSS, 1)
#define SA_DEV_TCSS_DMA0 PCI_DEV(0, SA_DEV_SLOT_TCSS, 2)