Commit Graph

10 Commits

Author SHA1 Message Date
Kishon Vijay Abraham I 4e0ae876f7 dt-bindings: phy: ti: Add dt binding documentation for SERDES in AM654x SoC
AM654x has two SERDES instances. Each instance has three input clocks
(left input, externel reference clock and right input) and two output
clocks (left output and right output) in addition to a PLL mux clock
which the SERDES uses for Clock Multiplier Unit (CMU refclock).
The PLL mux clock can select from one of the three input clocks.
The right output can select between left input and external reference
clock while the left output can select between the right input and
external reference clock.

The left and right input reference clock of SERDES0 and SERDES1
respectively are connected to the SoC clock. In the case of two lane
SERDES personality card, the left input of SERDES1 is connected to
the right output of SERDES0 in a chained fashion.

See section "Reference Clock Distribution" of AM65x Sitara Processors
TRM (SPRUID7 – April 2018) for more details.

Add dt-binding documentation in order to represent all these different
configurations in device tree.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2019-04-17 14:13:18 +05:30
Gustavo A. R. Silva 81fa7a69c2 dt-bindings: phy: Update SERDES_MAX to be SERDES_MAX + 1
SERDES_MAX is a valid value to index ctrl->phys in
drivers/phy/mscc/phy-ocelot-serdes.c. But, currently,
there is an out-of-bounds bug in the mentioned driver
when reading from ctrl->phys, because the size of
array ctrl->phys is SERDES_MAX.

Partially fix this by updating SERDES_MAX to be SERDES6G_MAX + 1.

Notice that this is the first part of the solution to
the out-of-bounds bug mentioned above. Although this
change is not dependent on any other one.

Suggested-by: Quentin Schulz <quentin.schulz@bootlin.com>
Reviewed-by: Quentin Schulz <quentin.schulz@bootlin.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:27:14 -07:00
Quentin Schulz b68fc09be4 dt-bindings: add constants for Microsemi Ocelot SerDes driver
The Microsemi Ocelot has multiple SerDes and requires that the SerDes be
muxed accordingly to the hardware representation.

Let's add a constant for each SerDes available in the Microsemi Ocelot.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-05 14:36:44 -07:00
Manu Gautam a8b70ccf10 dt-bindings: phy-qcom-usb2: Add support to override tuning values
To improve eye diagram for PHYs on different boards of same SOC,
some parameters may need to be changed. Provide device tree
properties to override these from board specific device tree
files. While at it, replace "qcom,qusb2-v2-phy" with compatible
string for USB2 PHY on sdm845 which was earlier added for
sdm845 only.

Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-05-20 21:51:31 +05:30
Vivek Gautam 55b20e8de9 dt-bindings: phy: Add PHY_TYPE_UFS definition
Add definition for UFS phy type.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-10-23 11:19:27 +05:30
Andrew Bresticker 90bc35c5da phy: Add binding document for Pistachio USB2.0 PHY
Add a binding document for the USB2.0 PHY found on the IMG Pistachio SoC.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: devicetree@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: James Hartley <james.hartley@imgtec.com>
Cc: Damien Horsley <Damien.Horsley@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/9727/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:53:37 +02:00
Peter Griffin fbea230e78 phy: miphy365x: Use the generic phy type constants in dt-bindings/phy/phy.h
Now there are generic phy type constants declared in phy.h, migrate over to
using them rather than defining our own. This change has been done as one
atomic commit to be bisectable.

Note: The values of the defines are the same, so there is no ABI breakage
with this patch.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-04-03 18:16:20 +05:30
Gregory CLEMENT eee47538ec phy: add support for USB cluster on the Armada 375 SoC
The Armada 375 SoC comes with an USB2 host and device controller and
an USB3 controller. The USB cluster control register allows to manage
common features of both USB controllers.

This commit adds a driver integrated in the generic PHY framework to
control this USB cluster feature.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[ kishon@ti.com : Made it to use the updated devm_phy_create API and
		  soem cosmentic changes in Kconfig file.]
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26 11:07:14 +05:30
Gabriel FERNANDEZ 2fbbc96d16 phy: Add PHY header file for DT x Driver defines
This provides the shared header file which will be reference from both
PHY driver and its associated Device Tree node(s).

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
2014-11-11 15:53:25 +05:30
Lee Jones d821bfa4ca phy: miphy365x: Add MiPHY365x header file for DT x Driver defines
This provides the shared header file which will be reference from both
the MiPHY365x driver and its associated Device Tree node(s).

Cc: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-07-22 12:23:44 +05:30