Commit Graph

7 Commits

Author SHA1 Message Date
Chris Healy
f7e630bcae ARM: dts: ZII: Disable HW Ethernet switch reset GPIOs
Disable Ethernet switch reset GPIO with ZII platforms that have it
enabled.  HW switch reset results in a reset of the copper PHYs
inside of the switch.  We want to avoid this reset of the copper PHYs
in the switch as this results in unnecessary broader network disruption on
a soft reboot of the application processor.

With the HW GPIO removed, the switch driver still performs a soft reset of
the switch core which has been shown to sufficiently meet our needs with
other ZII platforms that do not have the HW switch reset GPIO defined.

Signed-off-by: Chris Healy <cphealy@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-08-17 21:28:42 +08:00
Chris Healy
2b4bd73493 ARM: dts: vf610-zii-ssmb-dtu: Add no-sdio/no-sd properties
esdhc0 is connected to an eMMC, so it is safe to pass the "no-sdio"/"no-sd"
properties.

esdhc1 is wired to a standard SD socket, so pass the "no-sdio" property.

Signed-off-by: Chris Healy <cphealy@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-07-20 11:17:23 +08:00
Chris Healy
b955387667 ARM: dts: ZII: update MDIO speed and preamble
Update MDIO configuration with ZII devices to fully utilize
MDIO endpoint capabilities.  All devices support 12.5MHz clock and
don't require MDIO preable.

Signed-off-by: Chris Healy <cphealy@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-07-13 19:48:53 +08:00
Andrey Smirnov
a049c96518 ARM: dts: vf610-zii-ssmb-dtu: Add voltage monitor DT node
Add a DT node for various voltage supply rails connected to SoC's ADC
for voltage monitoring purposes.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-02-12 21:59:54 +08:00
Fabio Estevam
f7a6f5f3bb ARM: dts: vf610-zii: Remove 'max-brightness' property
The 'max-brightness' property is not a valid one as per
Documentation/devicetree/bindings/leds/leds-gpio.txt, so remove it.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-03-21 16:49:11 +08:00
Fabio Estevam
8da0af5d6d ARM: dts: vf610-zii: Disable SNVS RTC
None of these vf610-zii boards have a battery or super-capacitor
holding up power to the SNVS RTC embedded in the Vybrid SoC,
so it is preferable to disable the snvsrtc node.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-03-19 16:46:22 +08:00
Andrew Lunn
4a2c25961a ARM: dts: vf610: Add ZII SSMB DTU board
Add the Zodiac Digital Tapping Unit, a VF610 based network device with
5 Ethernet ports. One of these ports supports 1000Base-T2.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-02-12 17:17:10 +08:00