kernel/linux.git/drivers/phy/microchip, branch v6.19.11

phy: sparx5-serdes: make it selectable for ARCH_LAN969X

2025-12-23T17:22:42+00:00

LAN969x uses the SparX-5 SERDES driver, so make it selectable for ARCH_LAN969X. Reviewed-by: Daniel Machon Signed-off-by: Robert Marko Tested-by: Gabor Juhos Tested-by: Vladimir Oltean Link: https://patch.msgid.link/20251031121834.665987-1-robert.marko@sartura.hr Signed-off-by: Vinod Koul

phy: PHY_LAN966X_SERDES should depend on SOC_LAN966 || MCHP_LAN966X_PCI

2025-02-14T12:34:57+00:00

The Microchip LAN966X SerDes PHY is only present on Microchip LAN966x SoCs. However, when used as a PCI endpoint, all peripherals of the LAN966x SoC can be accessed by the PCI host. Hence add dependencies on SOC_LAN966 and MCHP_LAN966X_PCI, to prevent asking the user about this driver when configuring a kernel without Microchip LAN966x SoC and PCIe support. Signed-off-by: Geert Uytterhoeven Acked-by: Herve Codina Link: https://lore.kernel.org/r/369233dfded88ff6fb342e03794fe31985d84d82.1737383314.git.geert+renesas@glider.be Signed-off-by: Vinod Koul

phy: lan969x-serdes: add support for lan969x serdes driver

2024-10-21T18:32:04+00:00

Add support for lan969x SERDES driver. Lan969x has ten 10G SERDES'es which share the same features and data rates as the Sparx5 SERDES'es. Signed-off-by: Daniel Machon Reviewed-by: Steen Hegelund Link: https://lore.kernel.org/r/20240909-sparx5-lan969x-serdes-driver-v2-9-d695bcb57b84@microchip.com Signed-off-by: Vinod Koul

phy: sparx5-serdes: add support for branching on chip type

2024-10-21T18:32:03+00:00

In preparation for lan969x, add a way to branch out on code that is to be executed on either Sparx5 or lan969x. Initially, this is required to branch out when checking the SERDES types and SERDES speeds, since the handling of these differ on the two platforms. This will also be used by the lan969x driver introduced in a subsequent patch. Signed-off-by: Daniel Machon Reviewed-by: Steen Hegelund Link: https://lore.kernel.org/r/20240909-sparx5-lan969x-serdes-driver-v2-7-d695bcb57b84@microchip.com Signed-off-by: Vinod Koul

phy: sparx5-serdes: add indirection layer to register macros

2024-10-21T18:32:03+00:00

The register macros are used to read and write to the SERDES registers. The registers are largely the same on Sparx5 and lan969x, however some register target sizes differ. Therefore we introduce a new indirection to the register macros. The target sizes are looked up, using a mapping table (sparx5_serdes_tsize) that maps the register target to the register target size. With this addition, we can reuse all the existing macros for lan969x. Also the autogenerated macros are now formatted slightly different, to adhere to a 80 character limit. Signed-off-by: Daniel Machon Reviewed-by: Steen Hegelund Link: https://lore.kernel.org/r/20240909-sparx5-lan969x-serdes-driver-v2-6-d695bcb57b84@microchip.com Signed-off-by: Vinod Koul

phy: sparx5-serdes: add function for getting the CMU index

2024-10-21T18:32:03+00:00

The SERDES to CMU mapping is different on Sparx5 and lan969x. Therefore create a function for getting the CMU index on Sparx5. Signed-off-by: Daniel Machon Reviewed-by: Steen Hegelund Link: https://lore.kernel.org/r/20240909-sparx5-lan969x-serdes-driver-v2-5-d695bcb57b84@microchip.com Signed-off-by: Vinod Koul

phy: sparx5-serdes: add ops to match data

2024-10-21T18:32:03+00:00

We need to handle code differently in a few places. Add a struct: sparx5_serdes_ops for this purpose, and populate it a with function to set the SERDES type. Signed-off-by: Daniel Machon Reviewed-by: Steen Hegelund Link: https://lore.kernel.org/r/20240909-sparx5-lan969x-serdes-driver-v2-4-d695bcb57b84@microchip.com Signed-off-by: Vinod Koul

phy: sparx5-serdes: add constant for the number of CMU's

2024-10-21T18:32:03+00:00

The number of CMU's differ for Sparx5 and lan969x, so add a new field: cmu_max and use it throughout. Signed-off-by: Daniel Machon Reviewed-by: Steen Hegelund Link: https://lore.kernel.org/r/20240909-sparx5-lan969x-serdes-driver-v2-3-d695bcb57b84@microchip.com Signed-off-by: Vinod Koul

phy: sparx5-serdes: add constants to match data

2024-10-21T18:32:03+00:00

We need to handle a few different constants that differ for Sparx5 and lan969x. Add a new struct: sparx5_serdes_consts for this purpose. We populate it with an initial field for the number of SERDES'es: sd_max. Signed-off-by: Daniel Machon Reviewed-by: Steen Hegelund Link: https://lore.kernel.org/r/20240909-sparx5-lan969x-serdes-driver-v2-2-d695bcb57b84@microchip.com Signed-off-by: Vinod Koul

phy: sparx5-serdes: add support for private match data

2024-10-21T18:32:03+00:00

In order to reuse the existing Sparx5 SERDES driver for lan969x, we add support for private match data, with initial fields for the iomap and imap_size. Signed-off-by: Daniel Machon Reviewed-by: Steen Hegelund Link: https://lore.kernel.org/r/20240909-sparx5-lan969x-serdes-driver-v2-1-d695bcb57b84@microchip.com Signed-off-by: Vinod Koul