[PATCH v6 3/7] PCI: dwc: Add PCIE_PORT_{FORCE,LANE_SKEW} macros

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



R-Car Gen4 PCIe controller needs to use the Synopsys-specific PCIe
configuration registers. So, add the macros.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
 drivers/pci/controller/dwc/pcie-designware.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index 26dae4837462..aa4db6eaf02a 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -71,6 +71,9 @@
 #define LINK_WAIT_IATU			9
 
 /* Synopsys-specific PCIe configuration registers */
+#define PCIE_PORT_FORCE			0x708
+#define PORT_FORCE_DO_DESKEW_FOR_SRIS	BIT(23)
+
 #define PCIE_PORT_AFR			0x70C
 #define PORT_AFR_N_FTS_MASK		GENMASK(15, 8)
 #define PORT_AFR_N_FTS(n)		FIELD_PREP(PORT_AFR_N_FTS_MASK, n)
@@ -92,6 +95,9 @@
 #define PORT_LINK_MODE_4_LANES		PORT_LINK_MODE(0x7)
 #define PORT_LINK_MODE_8_LANES		PORT_LINK_MODE(0xf)
 
+#define PCIE_PORT_LANE_SKEW		0x714
+#define PORT_LANE_SKEW_INSERT_MASK	GENMASK(23, 0)
+
 #define PCIE_PORT_DEBUG0		0x728
 #define PORT_LOGIC_LTSSM_STATE_MASK	0x1f
 #define PORT_LOGIC_LTSSM_STATE_L0	0x11
-- 
2.25.1





[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux