Commit Graph

241 Commits

Author SHA1 Message Date
Mieczyslaw Nalewaj
263fde5ab8 ramips: remove unnecessary macros for previous kernel versions
Remove unnecessary 'if' macros for previous kernel versions.
After removing kernel 6.1 the kernel is always >= 6.6 so the conditions
are unnecessary.

Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
[removed some more and also no longer include version.h]
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2024-05-03 23:02:00 +01:00
Mieczyslaw Nalewaj
359a9295f2 ramips: adjusted pinctrl-aw9523 for kernel 6.6
Compatiblity with kernel 6.6 for Awinic AW9523B i2c pin controller driver.
It follows the kernel patch: i2c: Drop legacy callback .probe_new() (5eb1e6e459)
and kernel patch: gpiolib: Get rid of not used of_node member (70d0fc4288)

Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
2024-04-05 07:58:15 +02:00
Mieczyslaw Nalewaj
7753b143cd ramips: 6.6: fix net drivers compatibility
Fix compatibility of ralink net drivers with kernel 6.6.
It follows the kernel patch: u64_stats: Streamline the implementation (https://github.com/torvalds/linux/commit/44b0c2957adc62b86fcd51adeaf8e993171b)

Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
2024-04-05 07:58:15 +02:00
Nick Hainke
1576474f55 ramips: switch to 6.1 kernel
We have had the testing kernel for several weeks now. Let's switch to 6.1
to have more testers. Additionally, 6.6 is already in the pipeline.

Signed-off-by: Nick Hainke <vincent@systemli.org>
2024-03-12 17:28:52 +01:00
Shiji Yang
88d1322fcf ramips: mtk_eth_soc: fix NULL pointer dereference for syncp
u64_stats_init() has been unable to handle NULL pointer since
6.1 kernel. This patch fixes kernel oops on mt76x8 and rt305x
sub-target.

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2024-02-11 12:21:41 +01:00
Mieczyslaw Nalewaj
cc4d01cd60 ramips: 6.1: ralink: fix ethernet driver with 6.1
Fixes errors in the form of:
  make[9]: Entering directory '/home/nick/openwrt/build_dir/target-mipsel_24kc_musl/linux-ramips_mt7620/linux-6.1.77'
    CC      drivers/net/ethernet/ralink/mtk_eth_soc.o
  drivers/net/ethernet/ralink/mtk_eth_soc.c: In function 'fe_init':
  drivers/net/ethernet/ralink/mtk_eth_soc.c:1368:51: warning: passing argument 2 of 'of_get_mac_address' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
   1368 |         of_get_mac_address(priv->dev->of_node, dev->dev_addr);
        |                                                ~~~^~~~~~~~~~
  In file included from drivers/net/ethernet/ralink/mtk_eth_soc.c:26:
  ./include/linux/of_net.h:16:59: note: expected 'u8 *' {aka 'unsigned char *'} but argument is of type 'const unsigned char *'
     16 | extern int of_get_mac_address(struct device_node *np, u8 *mac);
        |                                                       ~~~~^~~
  drivers/net/ethernet/ralink/mtk_eth_soc.c: In function 'fe_probe':
  drivers/net/ethernet/ralink/mtk_eth_soc.c:1641:9: error: too many arguments to function 'netif_napi_add'
   1641 |         netif_napi_add(netdev, &priv->rx_napi, fe_poll, napi_weight);
        |         ^~~~~~~~~~~~~~
  In file included from ./include/linux/etherdevice.h:21,
                   from drivers/net/ethernet/ralink/mtk_eth_soc.c:21:
  ./include/linux/netdevice.h:2611:1: note: declared here
   2611 | netif_napi_add(struct net_device *dev, struct napi_struct *napi,
        | ^~~~~~~~~~~~~~

Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
[split commit and rewrite commit message]
Signed-off-by: Nick Hainke <vincent@systemli.org>
2024-02-10 13:06:05 +01:00
Nick Hainke
31c4fc7414 ramips: 6.1: ralink: fix const warning in the ethernet driver
Change fe_hw_set_macaddr and the set_mac parameter to const to fix
errors in the form of:

   drivers/net/ethernet/ralink/mtk_eth_soc.c: In function 'fe_set_mac_address':
  drivers/net/ethernet/ralink/mtk_eth_soc.c:174:53: error: passing argument 2 of 'priv->soc->set_mac' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
    174 |                         priv->soc->set_mac(priv, dev->dev_addr);
        |                                                  ~~~^~~~~~~~~~
  drivers/net/ethernet/ralink/mtk_eth_soc.c:174:53: note: expected 'unsigned char *' but argument is of type 'const unsigned char *'
  drivers/net/ethernet/ralink/mtk_eth_soc.c: In function 'fe_hw_init':
  drivers/net/ethernet/ralink/mtk_eth_soc.c:1220:45: error: passing argument 2 of 'priv->soc->set_mac' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
   1220 |                 priv->soc->set_mac(priv, dev->dev_addr);
        |                                          ~~~^~~~~~~~~~
  drivers/net/ethernet/ralink/mtk_eth_soc.c:1220:45: note: expected 'unsigned char *' but argument is of type 'const unsigned char *'
  drivers/net/ethernet/ralink/mtk_eth_soc.c:1222:44: error: passing argument 2 of 'fe_hw_set_macaddr' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
   1222 |                 fe_hw_set_macaddr(priv, dev->dev_addr);
        |                                         ~~~^~~~~~~~~~
  drivers/net/ethernet/ralink/mtk_eth_soc.c:155:75: note: expected 'unsigned char *' but argument is of type 'const unsigned char *'
    155 | static inline void fe_hw_set_macaddr(struct fe_priv *priv, unsigned char *mac)
        |                                                            ~~~~~~~~~~~~~~~^~~
  cc1: all warnings being treated as errors

Signed-off-by: Nick Hainke <vincent@systemli.org>
2024-02-10 13:06:05 +01:00
Nick Hainke
3358045d1d ramips: 6.1: pinctrl: fix compilation with 6.1
Upstream changed in ed5c2f5fd10d ("i2c: Make remove callback return void")
the i2c driver's remove function to return no value. Adapt the driver code
to compile with 5.15 and 6.1 like it is done in other projects [0].

Fixes errors in the form of:
  make[8]: Leaving directory '/home/nick/openwrt/build_dir/target-mipsel_24kc_musl/linux-ramips_mt7621/linux-6.1.29'
    CC      drivers/pinctrl/pinctrl-aw9523.o
  drivers/pinctrl/pinctrl-aw9523.c:1117:19: error: initialization of 'void (*)(struct i2c_client *)' from incompatible pointer type 'int (*)(struct i2c_client *)' [-Werror=incompatible-pointer-types]
 1117 |         .remove = aw9523_remove,
      |                   ^~~~~~~~~~~~~
  drivers/pinctrl/pinctrl-aw9523.c:1117:19: note: (near initialization for 'aw9523_driver.remove')
  cc1: all warnings being treated as errors

[0] - https://gitlab.com/ddcci-driver-linux/ddcci-driver-linux/-/merge_requests/10/diffs

Signed-off-by: Nick Hainke <vincent@systemli.org>
2024-02-10 13:06:05 +01:00
Nick Hainke
0561613319 ramips: 6.1: mt7621-dma: apply dma handle error from device_reset patch
Apply the "109-drivers-mt7621-dma-handle-error-from-device_reset.patch"
directly on the downstream maintained dma driver.

Signed-off-by: Nick Hainke <vincent@systemli.org>
2024-02-10 13:06:05 +01:00
Nick Hainke
88d982e3bd ramips: 6.1: mt7621-dma: add hsdma driver to files
Commit 87dd67f496f7 ("staging: mt7621-dma: remove driver from tree")
removed the mt7621-dma driver. Maintain the driver downstream in the
folder of the other mediatek drivers.

Signed-off-by: Nick Hainke <vincent@systemli.org>
2024-02-10 13:06:05 +01:00
Shiji Yang
f547fc9d57 ramips: reset mt7620 ethernet phy via reset controller
Use reset controller to reset mt7620 ethernet phy instead of directly
writing system control registers. The reset line of "ephy" is 24, so
the DTS resets properties have been updated to get the correct reset
signal.

Tested on HiWiFi HC5861.

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2024-01-06 14:24:13 +01:00
Shiji Yang
ee82d9606f ramips: reset mt7620 frame engine via reset controller
Use reset controller to reset mt7620 frame engine instead of directly
writing system control registers.

Tested on HiWiFi HC5861.

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2024-01-06 14:24:13 +01:00
Rosen Penev
89ff407d68
treewide: use ethtool_puts instead of memcpy
The former is a safer and more readable version.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
2024-01-05 16:12:49 +01:00
Lech Perczak
f393ffcac1 raimps: mtk_eth_soc: drop rst_esw from ESW driver
The ESW core needs to be reset together with FE core, so after the
relevant reset controller lines are moved under FE, drop rst_esw and all
related code, which would not execute anyway, because rst_esw would be
NULL. While at that, ensure that if reset line for EPHY cannot be
claimed, a proper error message is reported.

Fixes: 60fadae62b ("ramips: ethernet: ralink: move reset of the esw into the esw instead of fe")

Co-developed-by: Maxim Anisimov <maxim.anisimov.ua@gmail.com>
Signed-off-by: Maxim Anisimov <maxim.anisimov.ua@gmail.com>

[Split out of the bigger commit, provide commit mesage, refactor error
handling]
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
2024-01-02 22:00:20 +01:00
Maxim Anisimov
7eb0458c1f ramips: mtk_eth_soc: wait longer after FE core reset to settle
Enabling the FE core too early causes the system to hang during boot
uncondtionally, after the reset is released. Increate it to 1-1.2ms
range.

Fixes: 60fadae62b ("ramips: ethernet: ralink: move reset of the esw into the esw instead of fe")
Signed-off-by: Maxim Anisimov <maxim.anisimov.ua@gmail.com>

[Split previous commit, provide rationale]
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
2024-01-02 21:56:52 +01:00
Lech Perczak
3f1be8edee ramips: mtk_eth_soc: allow multiple resets
Use devm_reset_control_array_get_exclusive to register multiple
reset lines in FE driver. This is required to reattach ESW reset to FE
driver again, based on device tree bindings.

While at that, remove unused fe_priv.rst_ppe field, and add error
message if getting the reset fails.

Fixes: 60fadae62b ("ramips: ethernet: ralink: move reset of the esw into the esw instead of fe")

Co-developed-by: Maxim Anisimov <maxim.anisimov.ua@gmail.com>
Signed-off-by: Maxim Anisimov <maxim.anisimov.ua@gmail.com>

[Split out of the bigger commit, provide commit mesage, refactor error
handling]
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
2024-01-02 21:56:52 +01:00
Shiji Yang
285f0668f4 ramips: do not print error log when mdio bus is disabled
The mdio bus is used to control externel switch. In most cases, they are
disabled, which is the normal behavior. Treating this as an error makes
no sense, so we need to change the notification level from error to info.

Fixes: a2acdf9607 ("ramips: mt7620: remove useless GMAC nodes")
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2023-06-25 18:48:29 +02:00
Shiji Yang
2fbb91d73f ramips: correct page read return value of the mt7621 nand driver
read_page() need to return maximum number of bitflips instead of the
accumulated number. Change takes from upstream mt7621 u-boot [1].

 * @read_page:  function to read a page according to the ECC generator
 *              requirements; returns maximum number of bitflips
 *              corrected in any single ECC step, -EIO hw error

[1] https://lore.kernel.org/all/cover.1653015383.git.weijie.gao@mediatek.com/

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2023-05-22 14:45:03 +02:00
Aleksander Jan Bajkowski
7365e6b00a kernel: remove obsolete kernel version switches
This removes unneeded kernel version switches from the targets after
kernel 5.10 has been dropped.

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
2023-05-20 15:19:14 +02:00
Christian Marangi
82afdf6056
ralink: rt3833: fix compilation warning from device_reset in fe_probe
Fix compilation warning from device_reset in fe_probe. On fail print a
warning but don't fail probe.
Fix compilation warning:
drivers/net/ethernet/ralink/mtk_eth_soc.c: In function 'fe_probe':
drivers/net/ethernet/ralink/mtk_eth_soc.c:1564:9: error: ignoring return value of 'device_reset' declared with attribute 'warn_unused_result' [-Werror=unused-result]
 1564 |         device_reset(&pdev->dev);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-12 03:15:39 +02:00
Christian Marangi
4ea21e3161
ralink: mt76x8: fix compilation warning in esw driver
Fix compilation warning for debug string in esw driver:
drivers/net/ethernet/ralink/esw_rt3050.c:1535:9: note: in expansion of macro 'dev_info'
 1535 |         dev_info(&pdev->dev, "mediatek esw at 0x%08lx, irq %d initialized\n",
      |         ^~~~~~~~
drivers/net/ethernet/ralink/esw_rt3050.c:1535:53: note: format string is defined here
 1535 |         dev_info(&pdev->dev, "mediatek esw at 0x%08lx, irq %d initialized\n",
      |                                                 ~~~~^
      |                                                     |
      |                                                     long unsigned int
      |                                                 %08p
cc1: all warnings being treated as errors

Fix unused variable causing compilation warning:
drivers/net/ethernet/ralink/esw_rt3050.c: In function 'esw_interrupt':
drivers/net/ethernet/ralink/esw_rt3050.c:769:13: error: unused variable 'i' [-Werror=unused-variable]
  769 |         int i;
      |             ^
cc1: all warnings being treated as errors

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-12 03:15:39 +02:00
Christian Marangi
3fa87858a7
ramips: mtk-mcc: move cmd_buf for dbg under ifdef
Move cmd_buf for dbg under ifdef to fix compilation warning:
drivers/mmc/host/mtk-mmc/dbg.c:51:13: error: 'cmd_buf' defined but not used [-Werror=unused-variable]
   51 | static char cmd_buf[256];
      |             ^~~~~~~
cc1: all warnings being treated as errors

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-12 03:15:38 +02:00
Christian Marangi
7f54fa575b
ramips: mt7620: handle request_irq fail in gsw ethernet driver
Handle return from request_irq in gsw ethernet driver.
Fix compilation warning:
drivers/net/ethernet/ralink/gsw_mt7620.c: In function 'mtk_gsw_init':
drivers/net/ethernet/ralink/gsw_mt7620.c:236:17: error: ignoring return value of 'request_irq' declared with attribute 'warn_unused_result' [-Werror=unused-result]
  236 |                 request_irq(gsw->irq, gsw_interrupt_mt7620, 0,
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  237 |                             "gsw", priv);
      |                             ~~~~~~~~~~~~
cc1: all warnings being treated as errors

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-12 03:15:37 +02:00
Michael Pratt
6b07d0c077 ramips: mt7620: split gsw hw_init to mac_init, ephy_init
in order for the option ephy-disable to work
without also needing ephy-base option,
we have to skip all the lines that write to mdio addresses that
assume those addresses do not have an external switch.

Otherwise, ephy ports will be disabled in hardware,
but register writes still happen as if they are enabled.

Split the functions so that other things are done first,
and ephy port setup can be skipped with a simple "return".

Tested on Engenius EPG600 (MT7620A ver:2 eco:3)
with QCA8337 external switch

Ref: cc6fd6fbb5 ("ramips: mt7620: add ephy-disable option to switch driver")
Signed-off-by: Michael Pratt <mcpratt@pm.me>
2023-02-18 16:55:35 +01:00
Tamas Balogh
65dc9e0980 ramips: ethernet: ralink: add led_source dts-binding
this adds the new dts-binding "mediatek,led_source"
currently for MT7628AN and MT7688 built-in switches,
which is documented as a 3-bit field configuring the
switch LEDs for various control schemes from 0 to 3.

Normally this is not needed, but e.g. for Asus RT-AC1200-V2
it is a must to set it to the anyway undocumented value
of 4, to have the switch LEDs react correctly on link/act
events. This is an MT7628DAN device, but I doubt this is
a speciality of this particular SoC.

Also added the RT305X_ESW_LED_OFF value to LED states.
Did also rename the register RT5350_EWS_REG_LED_POLARITY
to RT5350_EWS_REG_LED_CONTROL, which is the correct name.
Also making use of defines for some hardcoded values.

Signed-off-by: Tamas Balogh <tamasbalogh@hotmail.com>
2022-05-01 13:40:13 +09:00
Felix Fietkau
92081f9a34 ramips: fix kernel module build errors on linux 5.15
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-28 11:03:13 +02:00
Felix Fietkau
55e8d52157 ramips: skip bbt scan on mt7621
reduces unnecessary flash reads and speeds up boot time

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-25 21:11:09 +01:00
Felix Fietkau
4947623d6c ramips: enable support for mtk_bmt in the nand flash driver
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-25 21:11:09 +01:00
Felix Fietkau
73b2a4ca03 ramips: mt7621_nand: initialize ECC_FDMADDR
This is needed for the ECC controller to access FDM data

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-25 21:11:09 +01:00
Stijn Tintel
89c1959251 ramips: mt7621_nand: reduce log verbosity
Avoid flooding the log with the message below by increasing the log
level to debug:

  mt7621-nand 1e003000.nand: Using programmed access timing: 31c07388

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2022-03-25 21:11:09 +01:00
Stijn Tintel
2f2e81a4ea ramips: move mt7621_nand driver to files
The patch was rejected by upstream. The mtk_nand driver should be
modified to support the mt7621 flash controller instead. As there is no
newer version to backport, or no upstream version to fix bugs, let's
move the driver to the files dir under the ramips target. This makes it
easier to make changes to the driver while waiting for mt7621 support to
land in mtk_nand.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2022-03-25 21:11:09 +01:00
David Bauer
00b194871c ramips: aw9523: add can_sleep flag for GPIO chip
The GPIO expander is connected via I2C, thus the can_sleep flag has to
be set to true. This should fix spurious "scheduling while atomic" bugs
in the kernel ringbuffer.

Signed-off-by: David Bauer <mail@david-bauer.net>
2021-12-29 03:43:03 +01:00
Ansuel Smith
91a52f22a1 treewide: backport support for nvmem on non platform devices
In the current state, nvmem cells are only detected on platform device.
To quickly fix the problem, we register the affected problematic driver
with the of_platform but that is more an hack than a real solution.
Backport from net-next the required patch so that nvmem can work also
with non-platform devices and rework our current patch.
Drop the mediatek and dsa workaround and rework the ath10k patches.
Rework every driver that use the of_get_mac_address api.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
2021-08-05 01:46:26 +02:00
David Bauer
38db2f12d6 ramips: add AW9523 I2C GPIO expander driver
This adds a driver for the AW9523 I2C GPIO expander.

This driver is required to make LEDs as well as buttons on the Tenbay
T-MB5EU-V01 work.

This driver already had several upstream iterations. I'm working to
push this driver to mainline.

Ref: https://patchwork.ozlabs.org/project/linux-gpio/list/?series=226287

Signed-off-by: David Bauer <mail@david-bauer.net>
2021-06-27 21:40:15 +02:00
Alexander Couzens
8569bc5e0d
ramips: ethernet: ralink: rewrite esw_rt3050 to support link states
Ensure the esw is initialized before the ethernet device is sending
packets. Further implement carrier detection similar to mt7620.
If any port has a link, the ethernet device will detect a carrier.

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
2021-06-25 12:30:20 +02:00
Alexander Couzens
74c58c9d58 ramips: ethernet: ralink: allow to return EPROBE_DEFER on switch_init
For rt3050 the switch needs to be initialized before the ethernet start sending
packets. Allow switch_init to return -EPROBE_DEFER.

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
2021-06-25 10:52:50 +02:00
Alexander Couzens
60fadae62b ramips: ethernet: ralink: move reset of the esw into the esw instead of fe
The esw reset should only done by the esw driver and not by the fe itself.

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
2021-06-25 10:52:50 +02:00
Alexander Couzens
694561ae60 ramips: ethernet: ralink: use the reset controller api for esw & ephy
Instead of writing direct into the reset registers.

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
2021-06-25 10:52:50 +02:00
Alexander Couzens
3fa01db479 ramips: ethernet: ralink: add fe_reset_fe() to reset fe via reset controller
The dts defines the reset fe for all architectures. However
the soc code used direct register access of the reset controller.
Replace the custom soc reset with a generic fe_reset_fe().

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
2021-06-25 10:52:50 +02:00
Alexander Couzens
d50e129399 ramips: ethernet: ralink: add struct fe_priv as context to fe_reset()
The fe_reset function direct access the reset controller instead
using the reset controller api. In preparation to use the
reset controller.

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
2021-06-25 10:52:50 +02:00
Michael Pratt
88a0cebadf ramips: mt7620: ethernet: use more macros and bump version
Define and use some missing macros,
and use them instead of BIT() or numbers for more readable code.

Add comment for a bit change that seems unrelated to ethernet
but is actually needed (PCIe Root Complex mode).

Remove unknown and unused macro RST_CTRL_MCM
(probably from MT7621 / MT7622)

This is the last of a series of fixes, so bump version.

Signed-off-by: Michael Pratt <mcpratt@pm.me>
2021-06-23 14:22:19 +08:00
Michael Pratt
26c84b2e46 ramips: mt7620: fix RGMII TXID PHY mode
the register bits for TX delay and RX delay are opposites:
when TX delay bit is set, delay is enabled
when RX delay bit is set, delay is disabled

So, when both bits are unset, it is RX delay
and when both bits are set, it is TX delay

Note: TXID is the default RGMII mode of the SOC

Fixes: 5410a8e295 ("ramips: mt7620: add rgmii delays support")
Signed-off-by: Michael Pratt <mcpratt@pm.me>
2021-06-23 14:22:19 +08:00
Michael Pratt
cc6fd6fbb5 ramips: mt7620: add ephy-disable option to switch driver
Add back the register write to disable internal PHYs
as a separate option in the code that can be set using a DTS property.

Set the option to true by default
when an external mt7530 switch is identified.

This makes the driver more in sync with original SDK code
while keeping the lines separated into different options
to accommodate any board with any PHY layout.

Signed-off-by: Michael Pratt <mcpratt@pm.me>
2021-06-23 14:22:18 +08:00
Michael Pratt
6972e498d3 ramips: mt7620: move mt7620_mdio_mode() to ethernet driver
The function mt7620_mdio_mode is only called once
and both the function and mdio_mode block have been named incorrectly,
leading to confusion and useless commits.

These lines in the mdio_mode block of mt7620_hw_init
are only intended for boards with an external mt7530 switch.
(see commit 194ca6127e)

Therefore, move lines from mdio_mode to the place in soc_mt7620.c
where the type of mt7530 switch is identified,
and move lines from mt7620_mdio_mode to a main function.

mt7620_mdio_mode was called from mt7620_gsw_init
where the priv struct is available,
so the lines must stay in mt7620_gsw_init function.

In order to keep things as simple as possible,
keep the DTS property related function calls together,
by moving them from mt7620_gsw_probe to init.

Remove the now useless DTS properties and extra phy nodes.

Fixes: 5a6229a93d ("ramips: remove superfluous & confusing DT binding")
Fixes: b85fe43ec8 ("ramips: mt7620: add force use of mdio-mode")
Signed-off-by: Michael Pratt <mcpratt@pm.me>
2021-06-23 14:22:18 +08:00
Michael Pratt
0976b6c426 ramips: mt7620: use DTS to set PHY base address for external PHYs
Set the PHY base address to 12 for mt7530 and 8 for others,
which is based on the default setting for some devices
from printing the register with the following command
after it is written to by uboot during the boot cycle.

`md 0x10117014 1`

PHY_BASE option only uses 5 bits of the register,
bits 16 to 20, so use 8-bit integer type.

Set the option using the DTS property mediatek,ephy-base
and create the gsw node if missing.

Also, added a kernel message to display the EPHY base address.

Note:
If anything is written to a PHY address that is greater than 1 hex char (greater than 0xf)
then there is adverse effects with Atheros switches.

Signed-off-by: Michael Pratt <mcpratt@pm.me>
2021-06-23 14:22:18 +08:00
Michael Pratt
de5394a29d ramips: mt7620: allow both internal and external PHYs
When the new variable ephy_base was introduced,
it was not applied to the if block for mdio_mode.

The first line in the mdio_mode if block
sets the EPHY base address to 12 in the SOC by writing a register,
but the corresponding variable in the driver
was still set to the default of 0.

This causes subsequent lines that write registers with the function
_mt7620_mii_write
to write to PHY addresses 0 through 4
while internal PHYs have been moved to addresses 12 through 16.

All of these lines are intended only for PHYs on the SOC internal switch,
however, they are being written to external ethernet switches
if they exist at those PHY addresses 0 through 4.
This causes some ethernet ports to be broken on boards with AR8327 or QCA8337 switch.

Other suggested fixes move those lines to the else block of mdio_mode,
but removing the else block completely also fixes it.

Therefore, move the lines to the mt7620_hw_init function main block,
and have only one instance of the function mtk_switch_w32
for writing the register with the EPHY base address.

In theory, this also allows for boards that have both external switches
and internal PHYs that lead to ethernet ports to be supported.

Fixes: 391df37829 ("ramips: mt7620: add EPHY base mdio address changing possibility")
Signed-off-by: Michael Pratt <mcpratt@pm.me>
2021-06-23 14:22:18 +08:00
Michael Pratt
afd60d650e ramips: mt7620: fix ethernet driver GMAC port init
A workaround was added to the switch driver
to set SOC port 4 as an RGMII GMAC interface
based on the DTS property mediatek,port4-gmac.
(previously mediatek,port4)

However, the ethernet driver already does this,
but is being blocked by a return statement
whenever the phy-handle and fixed-link properties
are both missing from nodes that define the port properties.

Revert the workaround, so that both the switch driver
and ethernet driver are not doing the same thing
and move the phy-handle related lines down
so nothing is ending the function prematurely.

While at it, clean up kernel messages
and delete useless return statements.

Fixes: f6d81e2fa1 ("mt7620: gsw: make IntPHY and ExtPHY share mdio addr 4 possible")
Signed-off-by: Michael Pratt <mcpratt@pm.me>
2021-06-23 14:22:18 +08:00
Michael Pratt
a2acdf9607 ramips: mt7620: remove useless GMAC nodes
These nodes are used for configuring a GMAC interface
and for defining external PHYs to be accessed with MDIO.

None of this is possible on MT7620N, only MT7620A,
so remove them from all MT7620N DTS.

When the mdio-bus node is missing, the driver returns -NODEV
which causes the internal switch to not initialize.
Replace that return so that everything works without the DTS node.

Also, an extra kernel message to indicate for all error conditions
that mdio-bus is disabled.

Fixes: d482356322 ("ramips: mt7620n: add mdio node and disable port4 by default")
Fixes: aa5014dd1a ("ramips: mt7620n: enable port 4 as EPHY by default")
Signed-off-by: Michael Pratt <mcpratt@pm.me>
2021-06-23 14:22:18 +08:00
Michael Pratt
953bfe2eb3 ramips: mt7620: simplify DTS properties for GMAC
There are only 2 options in the driver
for the function of mt7620 internal switch port 4:

  EPHY mode (RJ-45, internal PHY)
  GMAC mode (RGMII, external PHY)

Let the DTS property be boolean instead of string
where EPHY mode is the default.

Fix how the properties are written
for all DTS that use them,
and add missing nodes where applicable,
and remove useless nodes,
and minor DTS formatting.

Signed-off-by: Michael Pratt <mcpratt@pm.me>
2021-06-23 14:22:18 +08:00
Gaspare Bruno
0056ffb468 ramips: mt7620: enable autonegotiation for all ports
This enables autonegotiation for all ephy ports on probe.
Some devices do not configure the ports, particularly port 4.

Signed-off-by: Gaspare Bruno <gaspare@anlix.io>
[replace magic values ; reword commit message]
Signed-off-by: David Bauer <mail@david-bauer.net>
2021-06-08 00:39:18 +02:00