Unverified Commit 544a18c9 authored by Yoshihiro Shimoda's avatar Yoshihiro Shimoda Committed by Krzysztof Wilczyński
Browse files

PCI: dwc: Add PCIE_PORT_{FORCE,LANE_SKEW} macros 

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

Link: https://lore.kernel.org/linux-pci/20240611125057.1232873-2-yoshihiro.shimoda.uh@renesas.com


Signed-off-by: default avatarYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: default avatarKrzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: default avatarManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
parent 1613e604

drivers/pci/controller/dwc/pcie-designware.h

+6 −0
Original line number Diff line number Diff line
@@ -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