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| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2024-06-11 14:50:53 +0200 |
|---|---|---|
| committer | Krzysztof Wilczyński <kwilczynski@kernel.org> | 2024-06-29 21:20:16 +0200 |
| commit | 544a18c936f99245bca5b990039152b816abc4ee (patch) | |
| tree | 9aadd10576ca5edd585f98c55cfd948db9568a80 /drivers/pci | |
| parent | Linux 6.10-rc1 (diff) | |
| download | linux-544a18c936f99245bca5b990039152b816abc4ee.tar.xz linux-544a18c936f99245bca5b990039152b816abc4ee.zip | |
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: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index f8e5431a207b..0476f9b6186b 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 |