Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-07 21:53:44 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

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

Browse Source 
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>
This commit is contained in:
Yoshihiro Shimoda 2024-06-11 21:50:53 +09:00 committed by Krzysztof Wilczyński
parent 1613e604df
commit 544a18c936
No known key found for this signature in database
GPG Key ID: 7C64768D3DE334E7
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/pci/controller/dwc/pcie-designware.h
View File

@ -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