kernel/linux.git/drivers/net/phy/microchip_t1.c, branch v6.2

net: phy: lan87xx: change interrupt src of link_up to comm_ready

2022-09-08T09:02:44+00:00

Currently phy link up/down interrupt is enabled using the LAN87xx_INTERRUPT_MASK register. In the lan87xx_read_status function, phy link is determined using the T1_MODE_STAT_REG register comm_ready bit. comm_ready bit is set using the loc_rcvr_status & rem_rcvr_status. Whenever the phy link is up, LAN87xx_INTERRUPT_SOURCE link_up bit is set first but comm_ready bit takes some time to set based on local and remote receiver status. As per the current implementation, interrupt is triggered using link_up but the comm_ready bit is still cleared in the read_status function. So, link is always down. Initially tested with the shared interrupt mechanism with switch and internal phy which is working, but after implementing interrupt controller it is not working. It can fixed either by updating the read_status function to read from LAN87XX_INTERRUPT_SOURCE register or enable the interrupt mask for comm_ready bit. But the validation team recommends the use of comm_ready for link detection. This patch fixes by enabling the comm_ready bit for link_up in the LAN87XX_INTERRUPT_MASK_2 register (MISC Bank) and link_down in LAN87xx_INTERRUPT_MASK register. Fixes: 8a1b415d70b7 ("net: phy: added ethtool master-slave configuration support") Signed-off-by: Arun Ramadoss Reviewed-by: Andrew Lunn Link: https://lore.kernel.org/r/20220905152750.5079-1-arun.ramadoss@microchip.com Signed-off-by: Paolo Abeni

net: phy: LAN937x: add interrupt support for link detection

2022-04-26T08:08:59+00:00

Added the config_intr and handle_interrupt for the LAN937x phy which is same as the LAN87xx phy. Signed-off-by: Arun Ramadoss Reviewed-by: Andrew Lunn Link: https://lore.kernel.org/r/20220423154727.29052-1-arun.ramadoss@microchip.com Signed-off-by: Paolo Abeni

net: phy: LAN87xx: add ethtool SQI support

2022-04-22T23:30:04+00:00

This patch add the support for measuring Signal Quality Index for LAN87xx and LAN937x T1 Phy. It uses the SQI Method 5 for obtaining the values. Signed-off-by: Arun Ramadoss Reviewed-by: Andrew Lunn Signed-off-by: Jakub Kicinski

net: phy: LAN937x: added PHY_POLL_CABLE_TEST flag

2022-04-15T09:50:01+00:00

Added the phy_poll_cable_test flag for the lan937x phy driver. Tested using command - ethtool --cable-test Fixes: 680baca546f2 ("net: phy: added the LAN937x phy support") Signed-off-by: Arun Ramadoss Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

net: phy: LAN87xx: remove genphy_softreset in config_aneg

2022-04-11T09:32:58+00:00

When the T1 phy master/slave state is changed, at the end of config_aneg function genphy_softreset is called. After the reset all the registers configured during the config_init are restored to default value. To avoid this, removed the genphy_softreset call. v1->v2 ------ Added the author in cc Fixes: 8a1b415d70b7 ("net: phy: added ethtool master-slave configuration support") Signed-off-by: Arun Ramadoss Signed-off-by: David S. Miller

net: phy: lan87xx: use genphy_read_master_slave in read_status

2022-03-08T12:34:33+00:00

To read the master slave configuration of the LAN87xx T1 phy, used the generic phy driver genphy_read_master_slave function. Removed the local lan87xx_read_master_slave function. Signed-off-by: Arun Ramadoss Reviewed-by: Andrew Lunn Signed-off-by: Paolo Abeni

net: phy: added ethtool master-slave configuration support

2022-03-04T12:45:19+00:00

To configure the T1 phy as master or slave using the ethtool -s master-slave , the config_aneg and read status functions are added. Signed-off-by: Prasanna Vengateshan Signed-off-by: Arun Ramadoss Signed-off-by: David S. Miller

net: phy: added the LAN937x phy support

2022-03-04T12:45:19+00:00

LAN937x T1 switch is based on LAN87xx Phy, so reusing the init script of the LAN87xx. There is a workaround in accessing the DSP bank register for LAN937x Phy. Whenever there is a bank switch to DSP registers, then we need a one dummy read access before proceeding to the actual register access. Signed-off-by: Prasanna Vengateshan Signed-off-by: Arun Ramadoss Signed-off-by: David S. Miller

net: phy: updated the initialization routine for LAN87xx

2022-03-04T12:45:19+00:00

The new initialization sequence is the improvement to the existing init routine. Init routine does soft reset, run init script and set Hw_init. Added the new access_smi_poll_timeout() for polling smi bank write. Signed-off-by: Prasanna Vengateshan Signed-off-by: Arun Ramadoss Signed-off-by: David S. Miller

net: phy: removed empty lines in LAN87XX

2022-03-04T12:45:18+00:00

Removed the empty lines in struct phy_drivers. Signed-off-by: Arun Ramadoss Signed-off-by: David S. Miller