net: stmmac: add platform init/exit for Altera's ARM socfpga

This patch adds platform init/exit functions and modifications to support
suspend/resume for the Altera Cyclone 5 SOC Ethernet controller

net: stmmac: add platform init/exit for Altera's ARM socfpga

This patch adds platform init/exit functions and modifications to support
suspend/resume for the Altera Cyclone 5 SOC Ethernet controller. The platform
exit function puts the controller into reset using the socfpga reset
controller driver. The platform init function sets up the Synopsys mac by
first making sure the Ethernet controller is held in reset, programming the
phy mode through external support logic, then deasserts reset through
the socfpga reset manager driver.

Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: stmmac: Add SOCFPGA glue driver

Like the STi and sunxi series SOCs, Altera's SOCFPGA also needs a glue layer
on top of the Synopsys gmac IP.

This patch adds the platform driver for the glue la

net: stmmac: Add SOCFPGA glue driver

Like the STi and sunxi series SOCs, Altera's SOCFPGA also needs a glue layer
on top of the Synopsys gmac IP.

This patch adds the platform driver for the glue layer which configures the IP
before the generic STMMAC driver takes over.

Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: stmmac: Add SOCFPGA glue driver

Like the STi series SOCs, Altera's SOCFPGA also needs a glue layer on top of the
Synopsys gmac IP.

This patch adds the platform driver for the glue layer which

net: stmmac: Add SOCFPGA glue driver

Like the STi series SOCs, Altera's SOCFPGA also needs a glue layer on top of the
Synopsys gmac IP.

This patch adds the platform driver for the glue layer which configures the IP
before the generic STMMAC driver takes over.

Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Acked-by: David S. Miller <davem@davemloft.net>
---
v3: Remove stray empty line at end of dwmac-socfpga.c.
v2: Use the dwmac-sti as an example for a glue layer and split patch up
to have dts as a separate patch. Also cc dts maintainers since there is
a new binding.

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net: stmmac: fix enabling socfpga's ptp_ref_clock

There are 2 registers to write to enable a ptp ref clock coming from the
fpga.
One that enables the usage of the clock from the fpga

net: stmmac: fix enabling socfpga's ptp_ref_clock

There are 2 registers to write to enable a ptp ref clock coming from the
fpga.
One that enables the usage of the clock from the fpga for emac0 and emac1
as a ptp ref clock, and the other to allow signals from the fpga to reach
emac0 and emac1.
Currently, if the dwmac-socfpga has phymode set to PHY_INTERFACE_MODE_MII,
PHY_INTERFACE_MODE_GMII, or PHY_INTERFACE_MODE_SGMII, both registers will
be written and the ptp ref clock will be set as coming from the fpga.
Separate the 2 register writes to only enable signals from the fpga to
reach emac0 or emac1 when ptp ref clock is not coming from the fpga.

Signed-off-by: Julien Beraud <julien.beraud@orolia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: stmmac: socfpga: Allow all RGMII modes

Allow all the RGMII modes to be used. (Not only "rgmii", "rgmii-id"
but "rgmii-txid", "rgmii-rxid")

Signed-off-by: Atsushi Nemoto <a

net: stmmac: socfpga: Allow all RGMII modes

Allow all the RGMII modes to be used. (Not only "rgmii", "rgmii-id"
but "rgmii-txid", "rgmii-rxid")

Signed-off-by: Atsushi Nemoto <atsushi.nemoto@sord.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: stmmac: socfpga: re-use the `interface` parameter from platform data

The socfpga sub-driver defines an `interface` field in the `socfpga_dwmac`
struct and parses it on init.

net: stmmac: socfpga: re-use the `interface` parameter from platform data

The socfpga sub-driver defines an `interface` field in the `socfpga_dwmac`
struct and parses it on init.

The shared `stmmac_probe_config_dt()` function also parses this from the
device-tree and makes it available on the returned `plat_data` (which is
the same data available via `netdev_priv()`).

All that's needed now is to dig that information out, via some
`dev_get_drvdata()` && `netdev_priv()` calls and re-use it.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Minor SPDX change conflict.

Signed-off-by: David S. Miller <davem@davemloft.net>

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it u

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not see http www gnu org
licenses

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 503 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204653.811534538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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net: stmmac: socfpga: fix phy and ptp_ref setup for Arria10/Stratix10

On the Arria10, Agilex, and Stratix10 SoC, there are a few differences from
the Cyclone5 and Arria5:
- The emac

net: stmmac: socfpga: fix phy and ptp_ref setup for Arria10/Stratix10

On the Arria10, Agilex, and Stratix10 SoC, there are a few differences from
the Cyclone5 and Arria5:
- The emac PHY setup bits are in separate registers.
- The PTP reference clock select mask is different.
- The register to enable the emac signal from FPGA is different.

Thus, this patch creates a separate function for setting the phy modes on
Arria10/Agilex/Stratix10. The separation is based a new DTS binding:
"altr,socfpga-stmmac-a10-s10".

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: stmmac: socfpga: add RMII phy mode

Add option for enabling RMII phy mode.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Wei Liang Lim <wei.liang.lim@i

net: stmmac: socfpga: add RMII phy mode

Add option for enabling RMII phy mode.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Wei Liang Lim <wei.liang.lim@intel.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: stmmac: socfpga: Use shared System Manager driver

The ARM64 System Manager requires a different method of reading
the System Manager than ARM32. A new System Manager driver was

net: stmmac: socfpga: Use shared System Manager driver

The ARM64 System Manager requires a different method of reading
the System Manager than ARM32. A new System Manager driver was
created to steer ARM32 System Manager calls to regmap_mmio and
ARM64 System Manager calls to the new access method.

Convert from syscon to the shared System Manager driver so that
both ARM64 and ARM32 are supported.

Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
Acked-by: David S. Miller <davem@davemloft.net>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

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net: stmmac: socfpga: add additional ocp reset line for Stratix10

The Stratix10 platform has an additional reset line, OCP(Open Core Protocol),
that also needs to get deasserted for the

net: stmmac: socfpga: add additional ocp reset line for Stratix10

The Stratix10 platform has an additional reset line, OCP(Open Core Protocol),
that also needs to get deasserted for the stmmac ethernet controller to work.
Thus we need to update the Kconfig to include ARCH_STRATIX10 in order to build
dwmac-socfpga.

Also, remove the redundant check for the reset controller pointer. The
reset driver already checks for the pointer and returns 0 if the pointer
is NULL.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: stmmac: socfgpa: Ensure emac bit set in sys manager for MII/GMII/SGMII.

When using MII/GMII/SGMII in the Altera SoC, the phy needs to be
wired through the FPGA. To ensure correct be

net: stmmac: socfgpa: Ensure emac bit set in sys manager for MII/GMII/SGMII.

When using MII/GMII/SGMII in the Altera SoC, the phy needs to be
wired through the FPGA. To ensure correct behavior, the appropriate
bit in the System Manager FPGA Interface Group register needs to be
set.

Signed-off-by: Stephan Gatzka <stephan.gatzka@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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stmmac: move stmmac_clk, pclk, clk_ptp_ref and stmmac_rst to platform structure

This patch moves stmmac_clk, pclk, clk_ptp_ref and stmmac_rst to the
plat_stmmacenet_data structure. It al

stmmac: move stmmac_clk, pclk, clk_ptp_ref and stmmac_rst to platform structure

This patch moves stmmac_clk, pclk, clk_ptp_ref and stmmac_rst to the
plat_stmmacenet_data structure. It also moves these platform variables
initialization to stmmac_platform. This was done for two reasons:

a) If PCI is used, platform related code is being executed in stmmac_main
resulting in warnings that have no sense and conceptually was not right

b) stmmac as a synopsys reference ethernet driver stack will be hosting
more and more drivers to its structure like synopsys/dwc_eth_qos.c.
These drivers have their own DT bindings that are not compatible with
stmmac's. One of the most important are the clock names, and so they need
to be parsed in the glue logic and initialized there, and that is the main
reason why the clocks were passed to the platform structure.

Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Tested-by: Niklas Cassel <niklas.cassel@axis.com>
Reviewed-by: Lars Persson <larper@axis.com>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Couple conflicts resolved here:

1) In the MACB driver, a bug fix to properly initialize the
RX tail pointer prop

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Couple conflicts resolved here:

1) In the MACB driver, a bug fix to properly initialize the
RX tail pointer properly overlapped with some changes
to support variable sized rings.

2) In XGBE we had a "CONFIG_PM" --> "CONFIG_PM_SLEEP" fix
overlapping with a reorganization of the driver to support
ACPI, OF, as well as PCI variants of the chip.

3) In 'net' we had several probe error path bug fixes to the
stmmac driver, meanwhile a lot of this code was cleaned up
and reorganized in 'net-next'.

4) The cls_flower classifier obtained a helper function in
'net-next' called __fl_delete() and this overlapped with
Daniel Borkamann's bug fix to use RCU for object destruction
in 'net'. It also overlapped with Jiri's change to guard
the rhashtable_remove_fast() call with a check against
tc_skip_sw().

5) In mlx4, a revert bug fix in 'net' overlapped with some
unrelated changes in 'net-next'.

6) In geneve, a stale header pointer after pskb_expand_head()
bug fix in 'net' overlapped with a large reorganization of
the same code in 'net-next'. Since the 'net-next' code no
longer had the bug in question, there was nothing to do
other than to simply take the 'net-next' hunks.

Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: stmmac: fix of-node and fixed-link-phydev leaks

Make sure to deregister and free any fixed-link phy registered during
probe on probe errors and on driver unbind by adding

net: ethernet: stmmac: fix of-node and fixed-link-phydev leaks

Make sure to deregister and free any fixed-link phy registered during
probe on probe errors and on driver unbind by adding a new glue helper
function.

Drop the of-node reference taken in the same path also on late probe
errors (and not just on driver unbind) by moving the put from
stmmac_dvr_remove() to the new helper.

Fixes: 277323814e49 ("stmmac: add fixed-link device-tree support")
Fixes: 4613b279bee7 ("ethernet: stmicro: stmmac: add missing of_node_put
after calling of_parse_phandle")
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: stmmac: dwmac-socfpga: fix use-after-free on probe errors

Make sure to call stmmac_dvr_remove() before returning on late probe
errors so that memory is freed, clocks are d

net: ethernet: stmmac: dwmac-socfpga: fix use-after-free on probe errors

Make sure to call stmmac_dvr_remove() before returning on late probe
errors so that memory is freed, clocks are disabled, and the netdev is
deregistered before its resources go away.

Fixes: 3c201b5a84ed ("net: stmmac: socfpga: Remove re-registration of
reset controller")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: stmmac: use phydev from struct net_device

The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer

net: stmmac: use phydev from struct net_device

The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phydev in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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ethernet: stmicro: stmmac: dwmac-socfpga: add missing of_node_put after calling of_parse_phandle

of_node_put needs to be called when the device node which is got
from of_parse_phandle ha

ethernet: stmicro: stmmac: dwmac-socfpga: add missing of_node_put after calling of_parse_phandle

of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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stmmac: dwmac-socfpga: remove redundant dev_err call in socfpga_dwmac_parse_data()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redu

stmmac: dwmac-socfpga: remove redundant dev_err call in socfpga_dwmac_parse_data()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>

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stmmac: dwmac-socfpga: fix wrong pointer passed to PTR_ERR()

PTR_ERR should access the value just tested by IS_ERR, otherwise
the wrong error code will be returned.

Signed-off-b

stmmac: dwmac-socfpga: fix wrong pointer passed to PTR_ERR()

PTR_ERR should access the value just tested by IS_ERR, otherwise
the wrong error code will be returned.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: Add TSE PCS support to dwmac-socfpga

This adds support for TSE PCS that uses SGMII adapter when the phy-mode of
the dwmac is set to sgmii.

Signed-off-by: Tien Hoc

net: ethernet: Add TSE PCS support to dwmac-socfpga

This adds support for TSE PCS that uses SGMII adapter when the phy-mode of
the dwmac is set to sgmii.

Signed-off-by: Tien Hock Loh <thloh@altera.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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stmmac: dwmac-socfpga: make socfpga_dwmac_pm_ops static

Fix the following sparse warning:
drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c:274:1: warning:
symbol 'socfpga_dwmac_

stmmac: dwmac-socfpga: make socfpga_dwmac_pm_ops static

Fix the following sparse warning:
drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c:274:1: warning:
symbol 'socfpga_dwmac_pm_ops' was not declared. Should it be static?

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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stmmac: dwmac-socfpga: kill init() and rename setup() to set_phy_mode()

Remove old init callback which now contains only a call to
socfpga_dwmac_setup(). Also rename socfpga_dwmac_setup(

stmmac: dwmac-socfpga: kill init() and rename setup() to set_phy_mode()

Remove old init callback which now contains only a call to
socfpga_dwmac_setup(). Also rename socfpga_dwmac_setup() to indicate
what the function really does.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

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stmmac: dwmac-socfpga: call phy_resume() only in resume callback

Calling phy_resume() should only be need during driver resume to
workaround a hardware errata.

Signed-off-by: Jo

stmmac: dwmac-socfpga: call phy_resume() only in resume callback

Calling phy_resume() should only be need during driver resume to
workaround a hardware errata.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

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