Merge branch 'remotes/lorenzo/pci/endpoint'

[linux-2.6-microblaze.git] / drivers / pci / controller / cadence / pcie-cadence.h

diff --git a/drivers/pci/controller/cadence/pcie-cadence.h b/drivers/pci/controller/cadence/pcie-cadence.h
index c3fb902..262421e 100644 (file)
--- a/drivers/pci/controller/cadence/pcie-cadence.h
+++ b/drivers/pci/controller/cadence/pcie-cadence.h
@@ -199,6 +199,14 @@
 /* AXI link down register */
 #define CDNS_PCIE_AT_LINKDOWN (CDNS_PCIE_AT_BASE + 0x0824)
 
+/* LTSSM Capabilities register */
+#define CDNS_PCIE_LTSSM_CONTROL_CAP             (CDNS_PCIE_LM_BASE + 0x0054)
+#define  CDNS_PCIE_DETECT_QUIET_MIN_DELAY_MASK  GENMASK(2, 1)
+#define  CDNS_PCIE_DETECT_QUIET_MIN_DELAY_SHIFT 1
+#define  CDNS_PCIE_DETECT_QUIET_MIN_DELAY(delay) \
+        (((delay) << CDNS_PCIE_DETECT_QUIET_MIN_DELAY_SHIFT) & \
+        CDNS_PCIE_DETECT_QUIET_MIN_DELAY_MASK)
+
 enum cdns_pcie_rp_bar {
        RP_BAR_UNDEFINED = -1,
        RP_BAR0,
@@ -305,6 +313,7 @@ struct cdns_pcie {
  * @avail_ib_bar: Satus of RP_BAR0, RP_BAR1 and        RP_NO_BAR if it's free or
  *                available
  * @quirk_retrain_flag: Retrain link as quirk for PCIe Gen2
+ * @quirk_detect_quiet_flag: LTSSM Detect Quiet min delay set as quirk
  */
 struct cdns_pcie_rc {
        struct cdns_pcie        pcie;
@@ -313,7 +322,8 @@ struct cdns_pcie_rc {
        u32                     vendor_id;
        u32                     device_id;
        bool                    avail_ib_bar[CDNS_PCIE_RP_MAX_IB];
-       bool                    quirk_retrain_flag;
+       unsigned int            quirk_retrain_flag:1;
+       unsigned int            quirk_detect_quiet_flag:1;
 };
 
 /**
@@ -346,6 +356,7 @@ struct cdns_pcie_epf {
  *        registers fields (RMW) accessible by both remote RC and EP to
  *        minimize time between read and write
  * @epf: Structure to hold info about endpoint function
+ * @quirk_detect_quiet_flag: LTSSM Detect Quiet min delay set as quirk
  */
 struct cdns_pcie_ep {
        struct cdns_pcie        pcie;
@@ -360,6 +371,7 @@ struct cdns_pcie_ep {
        /* protect writing to PCI_STATUS while raising legacy interrupts */
        spinlock_t              lock;
        struct cdns_pcie_epf    *epf;
+       unsigned int            quirk_detect_quiet_flag:1;
 };
 
 
@@ -520,6 +532,9 @@ static inline int cdns_pcie_ep_setup(struct cdns_pcie_ep *ep)
        return 0;
 }
 #endif
+
+void cdns_pcie_detect_quiet_min_delay_set(struct cdns_pcie *pcie);
+
 void cdns_pcie_set_outbound_region(struct cdns_pcie *pcie, u8 busnr, u8 fn,
                                   u32 r, bool is_io,
                                   u64 cpu_addr, u64 pci_addr, size_t size);