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Martin Blumenstingl f29cabf240 arm64: dts: meson: use the generic Ethernet PHY reset GPIO bindings
The snps,reset-gpio bindings are deprecated in favour of the generic
"Ethernet PHY reset" bindings.

Replace snps,reset-gpio from the &ethmac node with reset-gpios in the
ethernet-phy node. The old snps,reset-active-low property is now encoded
directly as GPIO flag inside the reset-gpios property.

snps,reset-delays-us is converted to reset-assert-us and
reset-deassert-us. reset-assert-us is the second cell from
snps,reset-delays-us while reset-deassert-us was the third cell.

Instead of blindly copying the old values (which seems strange since
they gave the PHY one second to come out of reset) over this also
updates the delays based on the datasheets:
- the Realtek RTL8211F PHY needs a 10ms assert delay (the datasheet
  mentions: "For a complete PHY reset, this pin must be asserted low
  for at least 10ms") and a 30ms deassert delay (the datasheet
  mentions: "Wait for a further 30ms (for internal circuits settling
  time) before accessing the PHY register". This applies to the
  following boards: GXBB NanoPi K2, GXBB Odroid-C2, GXBB Vega S95
  variants, GXBB Wetek variants, GXL P230, GXM Khadas VIM2, GXM Nexbox
  A1, GXM Q200, GXM RBox Pro boards.
- the ICPlus IP101GR PHY needs a 10ms assert delay (the datasheet
  mentions: "Trst | Reset period | 10ms") and a deassert delay of 10ms
  as well (the datasheet mentions: "Tclk_MII_rdy | MII/RMII clock
  output ready after reset released | 10ms"). This applies to the GXBB
  Nexbox A95X board.
- the Micrel KSZ9031 seems to require a 100us delay but use the same
  (seemingly safe) values from RTL8211F due to lack of a board to verify
  this. This applies to the GXBB P200 board.

The GXBB P201 board is left out from this conversion because it doesn't
have a dedicated PHY node (because it's not clear which PHY is used on
that board).

Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-19 20:34:14 -07:00
Martin Blumenstingl 890265c979 arm64: dts: amlogic: remove ethernet-phy-idAAAA.BBBB compatible strings
The Ethernet PHY documentation
(Documentation/devicetree/bindings/net/phy.txt) states that:
  If the PHY reports an incorrect ID (or none at all) then the
  "compatible" list may contain an entry with the correct PHY ID in the
  form: "ethernet-phy-idAAAA.BBBB"

An older version of the documentation suggested that the compatible
string can be used when the PHY ID is known.

Remove the ethernet-phy-id compatible string and add a comment with the
PHY ID instead.
This is a no-op on boards which are shipped with the PHY that was
listed (= all known cases). However, if a board manufacturer decides to
ship a different PHY we will now load and use the correct driver because
we ask the PHY to identify itself.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-05-21 10:58:40 -07:00
Martin Blumenstingl 1b2b1e752d ARM64: dts: meson-gx-p23x-q20x: move the wifi node to each board's .dts
meson-gx-p23x-q20x.dtsi is currently used by five boards:
- Amlogic P230 and P231 (which should be identical, apart from the
  external RGMII PHY on P230 whereas P231 can only use the internal PHY)
- Amlogic Q200 (identical to P230 but with an S912 GXM SoC instead of a
  GXL S905D SoC) and Q201 (identical to P231 but with an S912 GXM SoC
  instead of a GXL S905D SoC)
- NEXBOX A1 (based on the S912 GXM SoC)

The Amlogic P230 board uses a Broadcom BCM4356 SDIO wifi chip. Since the
other Amlogic reference design boards are very similar it's safe to
assume that these also use a Broadcom based SDIO wifi chip (which is
also how it was configured in meson-gx-p23x-q20x.dtsi).

However, NEXBOX A1 comes with a "longsys LTM8830" SDIO wifi module,
which is based on the "Qualcomm Atheros QCA9377-3(QCA1023-0)" chipset.

Thus move the wifi node from meson-gx-p23x-q20x.dtsi to each of the
four Amlogic reference board's .dts files.
There are no devicetree bindings for the QCA9377 SDIO wifi module yet,
so nothing is added to meson-gxm-nexbox-a1.dts.

Fixes: f51b454549 ("ARM64: dts: meson-gxm: Add support for the Nexbox A1")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2018-07-20 08:18:22 -07:00
Martin Blumenstingl 41ed2e0db4 ARM64: dts: meson: enable the saradc node in meson-gx-p23x-q20x.dtsi
meson-gxl-s905d-p230.dts and meson-gxm-q200.dts enable the saradc node
(and configure it's vref-supply "VDDIO_AO18") in their corresponding
.dts file.
Move both (the saradc node as well as the VDDIO_AO18 regulator) to
remove some duplicate code.

As a positive side-effect this enables the saradc also for the P231 (GXL
S905D) and Q201 (GXM S912) development boards which are similar to the
P230/Q200 boards (P231 and Q201 use the internal 100Mbit/s PHY, while
P230 and Q200 have an external RGMII PHY).

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2018-07-20 08:18:11 -07:00
Neil Armstrong 114abfe1aa ARM64: dts: amlogic: Convert to new-style SPDX license identifiers
Move the SPDX-License-Identifier lines to the top and drop the
license splat.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2018-03-07 17:21:58 -08:00
Jerome Brunet 3106507e10 ARM64: dts: meson-gxm: fix q200 interrupt number
Correct the interrupt number assigned to the Realtek PHY in the q200

Fixes: b94d22d94a ("ARM64: dts: meson-gx: add external PHY interrupt on some platforms")
Reported-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2017-12-08 10:47:28 -08:00
Martin Blumenstingl 50290cfe50 ARM64: dts: meson: add comments with the GPIO for the PHY interrupts
Currently one has to look/calculate the GPIO for the PHY interrupts
manually. Add a comment for the existing PHY interrupt lines to make it
easier to find out which GPIO is used.
This is done using the following calculation:
- number of GPIO AO pins (14 on GXBB: GPIOAO_0..13)
- add the offset of the pin which is used for the interrupt (for example
  GPIOZ_15 = 15 on Odroid-C2)

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-By: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2017-12-08 10:46:33 -08:00
Jerome Brunet b94d22d94a ARM64: dts: meson-gx: add external PHY interrupt on some platforms
Add the external PHY interrupt on the nanopi-k2, odroid-c2, p200, p230
and q200

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2017-10-29 08:44:04 -07:00
Neil Armstrong 82838e6f52 ARM64: dts: meson-gx: Add Buttons to Q200 and P230 boards
This patch adds support for the P230 and Q200 ADC laddered button and
GPIO button.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2017-03-22 20:46:51 -07:00
Martin Blumenstingl 093d23db4f ARM64: dts: amlogic: add the ethernet TX delay configuration
This adds the amlogic,tx-delay-ns property with the old (hardcoded)
default value of 2ns to all boards which are using an RGMII ethernet
PHY.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2017-03-06 09:55:56 -08:00
Neil Armstrong 4e6118974c ARM64: dts: meson-gxm: Rename q200 and q201 DT files for consistency
In order to keep consistency naming with the Nexbox A1 DTS file, remove the
S912 SoC name in the GXM DT files.

Suggested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2017-01-19 10:05:18 -08:00