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PCI: Add and use standard PCI-X Capability register names

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Add and use #defines for PCI-X Capability registers and fields.
Note that the PCI-X Capability has a different layout for
type 0 (endpoint) and type 1 (bridge) devices.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2012-12-05 13:51:17 -07:00
commit 7793eeabc8
2 changed files with 23 additions and 7 deletions
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15
include/uapi/linux/pci_regs.h
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@ -349,7 +349,7 @@
#define PCI_AF_STATUS_TP 0x01
#define PCI_CAP_AF_SIZEOF 6 /* size of AF registers */
/* PCI-X registers */
/* PCI-X registers (Type 0 (non-bridge) devices) */
#define PCI_X_CMD 2 /* Modes & Features */
#define PCI_X_CMD_DPERR_E 0x0001 /* Data Parity Error Recovery Enable */
@ -389,6 +389,19 @@
#define PCI_CAP_PCIX_SIZEOF_V1 24 /* size for Version 1 */
#define PCI_CAP_PCIX_SIZEOF_V2 PCI_CAP_PCIX_SIZEOF_V1 /* Same for v2 */
/* PCI-X registers (Type 1 (bridge) devices) */
#define PCI_X_BRIDGE_SSTATUS 2 /* Secondary Status */
#define PCI_X_SSTATUS_64BIT 0x0001 /* Secondary AD interface is 64 bits */
#define PCI_X_SSTATUS_133MHZ 0x0002 /* 133 MHz capable */
#define PCI_X_SSTATUS_FREQ 0x03c0 /* Secondary Bus Mode and Frequency */
#define PCI_X_SSTATUS_VERS 0x3000 /* PCI-X Capability Version */
#define PCI_X_SSTATUS_V1 0x1000 /* Mode 2, not Mode 1 */
#define PCI_X_SSTATUS_V2 0x2000 /* Mode 1 or Modes 1 and 2 */
#define PCI_X_SSTATUS_266MHZ 0x4000 /* 266 MHz capable */
#define PCI_X_SSTATUS_533MHZ 0x8000 /* 533 MHz capable */
#define PCI_X_BRIDGE_STATUS 4 /* Bridge Status */
/* PCI Bridge Subsystem ID registers */
#define PCI_SSVID_VENDOR_ID 4 /* PCI-Bridge subsystem vendor id register */