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path: root/drivers/net/dsa/microchip/ksz_spi.c
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2023-05-30net: dsa: microchip: add an enum for regmap widthsVladimir Oltean
It is not immediately obvious that this driver allocates, via the KSZ_REGMAP_TABLE() macro, 3 regmaps for register access: dev->regmap[0] for 8-bit access, dev->regmap[1] for 16-bit and dev->regmap[2] for 32-bit access. In future changes that add support for reg_fields, each field will have to specify through which of the 3 regmaps it's going to go. Add an enum now, to denote one of the 3 register access widths, and make the code go through some wrapper functions for easier review and further modification. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-09net: dsa: microchip: add dev_err_probe in probe functionsRakesh Sankaranarayanan
Probe functions uses normal dev_err() to check error conditions and print messages. Replace dev_err() with dev_err_probe() to have more standardized format and error logging. Signed-off-by: Rakesh Sankaranarayanan <rakesh.sankaranarayanan@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-11-09net: dsa: microchip: add ksz9563 in ksz_switch_ops and select based on ↵Rakesh Sankaranarayanan
compatible string Add KSZ9563 inside ksz_switch_chips structure with port_nirq as 3. KSZ9563 use KSZ9893 switch parameters but port_nirq count is 3 for KSZ9563 whereas 2 for KSZ9893. Add KSZ9563 inside ksz_switch_chips as a separate member and from device tree map compatible string into KSZ9563 inside ksz_spi.c and ksz9477_i2c.c. Global Chip ID 1 and 2 registers read value 9893, select sku based on Global Chip ID 4 Register which read 0x1c for KSZ9563. Signed-off-by: Rakesh Sankaranarayanan <rakesh.sankaranarayanan@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-22net: dsa: microchip: remove unnecessary set_drvdata()Yang Yingliang
Remove unnecessary set_drvdata(NULL) function in ->remove(), the driver_data will be set to NULL in device_unbind_cleanup() after calling ->remove(). Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-07net: dsa: microchip: add KSZ9896 switch supportRomain Naour
Add support for the KSZ9896 6-port Gigabit Ethernet Switch to the ksz9477 driver. Although the KSZ9896 is already listed in the device tree binding documentation since a1c0ed24fe9b (dt-bindings: net: dsa: document additional Microchip KSZ9477 family switches) the chip id (0x00989600) is not recognized by ksz_switch_detect() and rejected by the driver. The KSZ9896 is similar to KSZ9897 but has only one configurable MII/RMII/RGMII/GMII cpu port. Signed-off-by: Romain Naour <romain.naour@skf.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-05net: dsa: microchip: lan937x: add interrupt support for port phy linkArun Ramadoss
This patch enables the interrupts for internal phy link detection for LAN937x. The interrupt enable bits are active low. There is global interrupt mask for each port. And each port has the individual interrupt mask for TAS. QCI, SGMII, PTP, PHY and ACL. The first level of interrupt domain is registered for global port interrupt and second level of interrupt domain for the individual port interrupts. The phy interrupt is enabled in the lan937x_mdio_register function. Interrupt from which port is raised will be detected based on the interrupt host data. Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-31net: dsa: microchip: add support for regmap_access_tablesOleksij Rempel
This is complex driver with support for different chips with different layouts. To detect at least some bugs earlier, we should validate register accesses by using regmap_access_table support. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-31net: dsa: microchip: add separate struct ksz_chip_data for KSZ8563 chipOleksij Rempel
Add separate entry for the KSZ8563 chip. According to the documentation it can support Gbit only on RGMII port. So, we will need to be able to describe in the followup patch. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-18net: dsa: microchip: fix Clang -Wunused-const-variable warning on 'ksz_dt_ids'Arun Ramadoss
This patch removes the of_match_ptr() pointer when dereferencing the ksz_dt_ids which produce the unused variable warning. Reported-by: kernel test robot <lkp@intel.com> Suggested-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-02net: dsa: microchip: add LAN937x in the ksz spi probeArun Ramadoss
This patch add the LAN937x part support in the existing ksz_spi_probe. Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-06-29net: dsa: microchip: remove the struct ksz8Arun Ramadoss
This patch removes the struct ksz8 from ksz8.h which is no longer needed. The platform bus specific details are now deferenced through dev->priv. Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-06-24net: dsa: microchip: common ksz_spi_probe for ksz switchesArun Ramadoss
As of now, there are two spi probes, one ksz8795_spi.c and other ksz9477_spi.c. This patch combines two files into single ksz_spi.c. The difference between the two are regmap config and struct ksz8. The regmap config is assigned based on the platform data. And struct ksz8 is left untouched, as it is used only ksz8795.c. It can be used for all other switches also in future. Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-20net: dsa: microchip: rename ksz_spi.c to ksz9477_spi.cTristram Ha
Rename ksz_spi.c to ksz9477_spi.c and update Kconfig in preparation to add more KSZ switch drivers. Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Reviewed-by: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-20net: dsa: microchip: replace license with GPLTristram Ha
Replace license with GPL. Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Reviewed-by: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-16net: dsa: add support for ksz9897 ethernet switchLad, Prabhakar
ksz9477 is superset of ksz9xx series, driver just works out of the box for ksz9897 chip with this patch. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31dsa: add DSA switch driver for Microchip KSZ9477Woojung Huh
The KSZ9477 is a fully integrated layer 2, managed, 7 ports GigE switch with numerous advanced features. 5 ports incorporate 10/100/1000 Mbps PHYs. The other 2 ports have interfaces that can be configured as SGMII, RGMII, MII or RMII. Either of these may connect directly to a host processor or to an external PHY. The SGMII port may interface to a fiber optic transceiver. This driver currently supports vlan, fdb, mdb & mirror dsa switch operations. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>