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path: root/drivers/net/phy/meson-gxl.c
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2019-08-17net: phy: remove calls to genphy_config_initHeiner Kallweit1-1/+1
Supported PHY features are either auto-detected or explicitly set. In both cases calling genphy_config_init isn't needed. All that genphy_config_init does is removing features that are set as supported but can't be auto-detected. Basically it duplicates the code in genphy_read_abilities. Therefore remove such calls from all PHY drivers. v2: - remove call also from new adin PHY driver v3: - pass NULL as config_init function pointer for dp83848 Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-15net: phy: switch drivers to use dynamic feature detectionHeiner Kallweit1-2/+2
Recently genphy_read_abilities() has been added that dynamically detects clause 22 PHY abilities. I *think* this detection should work with all supported PHY's, at least for the ones with basic features sets, i.e. PHY_BASIC_FEATURES and PHY_GBIT_FEATURES. So let's remove setting these features explicitly and rely on phylib feature detection. I don't have access to most of these PHY's, therefore I'd appreciate regression testing. v2: - make the feature constant a comment so that readers know which features are supported by the respective PHY Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-06net: phy: meson-gxl: clean-up gxl variant driverJerome Brunet1-4/+2
The purpose of this change is to align the gxl and g12a driver declaration. Like on the g12a variant, remove genphy_aneg_done() from the driver declaration as the net phy framework will default to it anyway. Also, the gxl phy id should be an exact match as well, so let's change this and use the macro provided. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-06net: phy: meson-gxl: add g12a supportJerome Brunet1-0/+11
The g12a SoC family uses the type of internal PHY that was used on the gxl family. The quirks of gxl family, like the LPA register corruption, appear to have been resolved on this new SoC generation. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-15net: phy: meson-gxl: fix interrupt supportJerome Brunet1-0/+6
If an interrupt is already pending when the interrupt is enabled on the GXL phy, no IRQ will ever be triggered. The fix is simply to make sure pending IRQs are cleared before setting up the irq mask. Fixes: cf127ff20af1 ("net: phy: meson-gxl: add interrupt support") Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-22net: phy: Convert some PHY and MDIO driver files to SPDX headersAndrew Lunn1-11/+1
Where the license text and the MODULE_LICENSE() value agree, convert to using an SPDX header, removing the license text. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-15net: phy: meson-gxl: Use the genphy_soft_reset callbackTimotej Lazar1-0/+1
Since the referenced commit, Ethernet fails to come up at boot on the board meson-gxl-s905x-libretech-cc. Fix this by re-enabling the genphy_soft_reset callback for the Amlogic Meson GXL PHY driver. Fixes: 6e2d85ec0559 ("net: phy: Stop with excessive soft reset") Signed-off-by: Timotej Lazar <timotej.lazar@araneo.si> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-11net: phy: remove flag PHY_HAS_INTERRUPT from driver configsHeiner Kallweit1-1/+1
Now that flag PHY_HAS_INTERRUPT has been replaced with a check for callbacks config_intr and ack_interrupt, we can remove setting this flag from all driver configs. Last but not least remove flag PHY_HAS_INTERRUPT completely. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18net: phy: meson-gxl: join the authorsJerome Brunet1-0/+1
Following previous changes, join the other authors of this driver and take the blame with them Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18net: phy: meson-gxl: add interrupt supportJerome Brunet1-1/+36
Enable interrupt support in meson-gxl PHY driver Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18net: phy: meson-gxl: leave CONFIG_A6 untouchedJerome Brunet1-9/+0
The PHY performs just as well when left in its default configuration and it makes senses because this poke gets reset just after init. According to the documentation, all registers in the Analog/DSP bank are reset when there is a mode switch from 10BT to 100BT. The bank is also reset on power down and soft reset, so we will never see the value which may have been set by the bootloader. In the end, we have used the default configuration so far and there is no reason to change now. Remove CONFIG_A6 poke to make this clear. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18net: phy: meson-gxl: use genphy_config_initJerome Brunet1-1/+1
Use the generic init function to populate some of the phydev structure fields Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18net: phy: meson-gxl: add read and write helpers for banked registersJerome Brunet1-61/+69
Add read and write helpers to manipulate banked registers on this PHY This helps clarify the settings applied to these registers and what the driver actually does Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18net: phy: meson-gxl: define control registersJerome Brunet1-20/+66
Define registers and bits in meson-gxl PHY driver to make a bit more human friendly. No functional change. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18net: phy: meson-gxl: check phy_write return valueJerome Brunet1-12/+38
Always check phy_write return values. Better to be safe than sorry Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-0/+73
Three sets of overlapping changes, two in the packet scheduler and one in the meson-gxl PHY driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-13net: phy: meson-gxl: make function meson_gxl_read_status staticColin Ian King1-1/+1
The function meson_gxl_read_status is local to the source and does not need to be in global scope, so make it static. Cleans up sparse warning: symbol 'meson_gxl_read_status' was not declared. Should it be static? Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-11net: phy: meson-gxl: detect LPA corruptionJerome Brunet1-1/+73
The purpose of this change is to fix the incorrect detection of the link partner (LP) advertised capabilities which sometimes happens with this PHY (roughly 1 time in a dozen) This issue may cause the link to be negotiated at 10Mbps/Full or 10Mbps/Half when 100MBps/Full is actually possible. In some case, the link is even completely broken and no communication is possible. To detect the corruption, we must look for a magic undocumented bit in the WOL bank (hint given by the SoC vendor kernel) but this is not enough to cover all cases. We also have to look at the LPA ack. If the LP supports Aneg but did not ack our base code when aneg is completed, we assume something went wrong. The detection of a corrupted LPA triggers a restart of the aneg process. This solves the problem but may take up to 6 retries to complete. Fixes: 7334b3e47aee ("net: phy: Add Meson GXL Internal PHY driver") Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-01net: phy: remove generic settings for callbacks config_aneg and read_status ↵Heiner Kallweit1-2/+0
from drivers Remove generic settings for callbacks config_aneg and read_status from drivers. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-09net: phy: Add Meson GXL Internal PHY driverNeil Armstrong1-0/+81
Add driver for the Internal RMII PHY found in the Amlogic Meson GXL SoCs. This PHY seems to only implement some standard registers and need some workarounds to provide autoneg values from vendor registers. Some magic values are currently used to configure the PHY, and this a temporary setup until clarification about these registers names and registers fields are provided by Amlogic. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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