device/pci_device: Add generic subsystem programming logic
This patch adds generic log to perform subsystem programming
based on header type.
Type 0: subsystem offset 0x2C
Type 2: subsystem offset 0x40
Type 1: Read CAP ID 0xD to know cap offset start, offset 4 to locate
subsystem vendor id.
Change-Id: Id8aed6dac24517e93cd55d6bb3b254b7b4d950d3
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31983
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: David Guckian
Reviewed-by: Furquan Shaikh <furquan@google.com>
diff --git a/src/include/device/pci_def.h b/src/include/device/pci_def.h
index f9ce1a6..bc5bc79 100644
--- a/src/include/device/pci_def.h
+++ b/src/include/device/pci_def.h
@@ -198,6 +198,7 @@
#define PCI_CAP_ID_HT 0x08 /* Hypertransport */
#define PCI_CAP_ID_EHCI_DEBUG 0x0A /* EHCI debug port */
#define PCI_CAP_ID_SHPC 0x0C /* PCI Standard Hot-Plug Controller */
+#define PCI_CAP_ID_SSVID 0x0D /* Bridge subsystem vendor/device ID */
#define PCI_CAP_ID_PCIE 0x10 /* PCI Express */
#define PCI_CAP_ID_MSIX 0x11 /* MSI-X */
#define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */