USB2.0 Host and OTG controllers in RK3328 are using USB2PHY.
Add support for it.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Xavier Drudis Ferran <xdrudis@tinet.cat>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This adds a new USBDP combo PHY with Samsung IP block driver.
The PHY is a combo between USB 3.0 and DisplayPort alt mode.
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
[eugen.hristev@collabora.com: ported to 2023.07, clean-up]
Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Now that the Allwinner USB PHY driver supports the H616 quirk, let's
enable support for USB ports on that SoC.
We connect the compatible string to a new struct describing the SoCs USB
PHY properties, and unblock the PHY driver selection in Kconfig.
A later patch will enable USB support in the H616 boards' defconfigs.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
The H616 USB PHY is some kind of special snowflake: Only port2 works out
of the box, but all other ports need some help from this port2 to work
correctly: The CLK_BUS_PHY2 and RST_USB_PHY2 clock and reset need to be
enabled, and the SIDDQ bit in the PMU PHY control register needs to be
cleared. For this register to be accessible, CLK_BUS_ECHI2 needs to be
ungated. Don't ask ....
Follow the respective Linux patch (b45c6d80325b) and add a quirk bit,
triggering the special sequence as outlined above, for PHYs other than
PHY2: ungate this one special clock, and clear the SIDDQ bit. We also
pick the clock and reset from PHY2 and enable them as well.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
So far we were assigning some crude "type" (SoC name, really) to each
Allwinner USB PHY model, then guarding certain quirks based on this.
This does not only look weird, but gets more or more cumbersome to
maintain.
Remove the bogus type names altogether, instead introduce flags for each
quirk, and explicitly check for them.
This improves readability, and simplifies future extensions.
Port of Linux patch 8dd256bae653.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
At the moment we use "select" in each Allwinner SoC's Kconfig section to
include the USB PHY driver in the build. This means it cannot be disabled
via Kconfig, although USB is not really a strictly required core
functionality, and a particular board might not even include USB ports.
Rework the Kconfig part by removing the "select" lines for each SoC's
section, and instead letting it default to "y" in the PHY driver section
itself. We use "depends on !" to exclude the few SoCs we don't support
(yet). The Allwinner V3s does not enable USB (PHY) support at the moment,
even though it should work: let the PHY default to "n" to keep the
current behaviour.
Also the MUSB USB driver directly calls some functions from the PHY
driver, so let the former depend on the PHY driver.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Tested-by: Sam Edwards <CFSworks@gmail.com>
The Allwinner F1C100s implements a single USB PHY, connected to its MUSB
OTG controller. The USB PHY is of the simpler, older type (like the A10),
the only real difference is that it's indeed only one PHY.
Add a struct describing those F1C100s USB PHY properties, and connect it
to the new compatible string.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
In its of_xlate() function, the Allwinner USB PHY driver compares the
args_count variable against the number of implemented USB PHYs, although
this is the *number of arguments* to the DT phandle property. Per the DT
binding for this PHY device, this number is always one, so this check
will always fail if the particular SoC implements exactly one USB PHY.
So far this affected only the V3s (which has USB support disabled), but
the F1C100s also sports one PHY only.
Fix that check to compare args_count against exactly 1, and the args[0]
content (requested PHY number) against the number of implemented PHYs.
This fixes USB operation on the Allwinner V3s and allows to enable USB
on the Allwinner F1C100s SoC.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
The support for #address-cells=2 has a loophole: if the reg is actually 0,
but the #address-cells is actually 1, like in such case below:
syscon {
#address-cells = <1>;
phy {
reg = <0 0x10>;
};
};
then the second u32 of the 'reg' is the size, not the address.
The code should check for the parent's #address-cells value, and not
assume that if the first u32 is 0, then the #address-cells is 2, and the
reg property is something like
reg = <0 0xff00 0x10>;
Fixed this by looking for the #address-cells value and retrieving the
reg address only if this is ==2.
To avoid breaking anything I also kept the check `if reg==0` as some DT's
may have a wrong #address-cells as parent and even if this commit is
correct, it might break the existing wrong device-trees.
Fixes: d538efb9ad ("phy: rockchip: inno-usb2: Add support #address_cells = 2")
Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This clock doesn't seem needed but appears in a phandle list used by
ehci-generic.c to bulk enable it. The phandle list comes from linux,
where it is needed for suspend/resume to work [1].
My tests give the same results with or without this patch, but Marek
Vasut found it weird to declare an empty clk_ops [2].
So I adapted the code from linux 6.1-rc8 so that it hopefully works
if it ever has some user. For now, without real use, it seems to
at least not give any errors when called.
Link: [1] https://lkml.kernel.org/lkml/1731551.Q6cHK6n5ZM@phil/T/
[2] https://patchwork.ozlabs.org/project/uboot/patch/Y5IWpjYLB4aXMy9o@localhost/
Cc: Simon Glass <sjg@chromium.org>
Cc: Philipp Tomsich <philipp.tomsich@vrull.eu>
Cc: Kever Yang <kever.yang@rock-chips.com>
Cc: Lukasz Majewski <lukma@denx.de>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Christoph Fritz <chf.fritz@googlemail.com>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Xavier Drudis Ferran <xdrudis@tinet.cat>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> # rk3399, rk3328, rv1126
arch/arm/dts/rk3399.dtsi has a node
usb_host0_ehci: usb@fe380000 {
compatible = "generic-ehci";
with clocks:
clocks = <&cru HCLK_HOST0>, <&cru HCLK_HOST0_ARB>,
<&u2phy0>;
The first 2 refer to nodes with class UCLASS_CLK, but &u2phy0
has class UCLASS_PHY.
u2phy0: usb2phy@e450 {
compatible = "rockchip,rk3399-usb2phy";
Since clk_get_bulk() only looks for devices with UCLASS_CLK,
it fails with -ENODEV and then ehci_usb_probe() aborts.
The consequence is peripherals connected to a USB 2 port (e.g. in a
Rock Pi 4 the white port, nearer the edge) not being detected.
They're detected if CONFIG_USB_OHCI_GENERIC is selected in Kconfig,
because ohci_usb_probe() does not abort when one clk_get_by_index()
fails, but then they work in USB 1 mode.
rk3399.dtsi comes from linux and the u2phy0 was added[1] to the clock
list in:
commit b5d1c57299734f5b54035ef2e61706b83041f20c
Author: William wu <wulf@rock-chips.com>
Date: Wed Dec 21 18:41:05 2016 +0800
arm64: dts: rockchip: add u2phy clock for ehci and ohci of rk3399
We found that the suspend process was blocked when it run into
ehci/ohci module due to clk-480m of usb2-phy was disabled.
[...]
Suspend concerns don't apply to U-Boot, and the problem with U-Boot
failing to probe EHCI doesn't apply to linux, because in linux
rockchip_usb2phy_clk480m_register makes u2phy0 a proper clock provider
when called by rockchip_usb2phy_probe().
So I can think of a few alternative solutions:
1- Change ehci_usb_probe() to make it more similar to
ohci_usb_probe(), and survive failure to get one clock. Looks a
little harder, and I don't know whether it could break something if
it ignored a clock that was important for something else than
suspend.
2- Change rk3399.dtsi effectively reverting the linux commit
b5d1c57299734f5b54035ef2e61706b83041f20c. This dealigns the .dtsi
from linux and seems fragile at the next synchronisation.
3- Change the clock list in rk3399-u-boot.dtsi or somewhere else.
This survives .dts* sync but may survive "too much" and miss some
change from linux that we might want.
4- Enable CONFIG_USB_OHCI_GENERIC and use the ports in USB 1 mode.
This would need to be made for all boards using rk3399. In a
simple test reading one file from USB storage it gave 769.5 KiB/s
instead of 20.5 MiB/s with solution 2.
5- Trying to replicate linux and have usb2phy somehow provide a clk,
or have a separate clock device for usb2phy in addition to the phy
device.
This patch tries to implement option 5 as Marek Vasut requested in
December 5th. Options 1 and 3 didn't get through [2][3].
It just registers usb2phy as a clock driver (device_bind_driver()
didn't work but device_bind_driver_to_node() did), without any
specific operations, so that ehci-generic.c finds it and is happy. It
worked in my tests on a Rock Pi 4 B+ (rk3399).
Link: [1] https://lkml.kernel.org/lkml/1731551.Q6cHK6n5ZM@phil/T/
[2] https://patchwork.ozlabs.org/project/uboot/patch/20220701185959.GC1700@begut/
[3] https://patchwork.ozlabs.org/project/uboot/patch/Y44+ayJfUlI08ptM@localhost/
Cc: Simon Glass <sjg@chromium.org>
Cc: Philipp Tomsich <philipp.tomsich@vrull.eu>
Cc: Kever Yang <kever.yang@rock-chips.com>
Cc: Lukasz Majewski <lukma@denx.de>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Christoph Fritz <chf.fritz@googlemail.com>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Xavier Drudis Ferran <xdrudis@tinet.cat>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> # rk3399, rk3328, rv1126
Add support for j721s2-wiz-10g device to use clock-names interface
instead of explicitly defining clock nodes within device tree node.
Signed-off-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Add support for rk3588 phy variant.
The PHY clock is fixed at 100MHz.
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
[kever.yang@rock-chips.com: update pcie pll parameters]
Co-developed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
[eugen.hristev@collabora.com: squashed, tidy up]
Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Some variants of the PHY have more than just one reset.
To cover all cases, request the rests in bulk rather than just
the reset at index 0.
Co-developed-by: Ren Jianing <jianing.ren@rock-chips.com>
Signed-off-by: Ren Jianing <jianing.ren@rock-chips.com>
Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Fixes: 226fce6108 ("phy: Track power-on and init counts in uclass")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Add initial support for the rk3588 PHY variant.
The lookup for the host-port reg inside the struct now does a do {} while()
instead of a while() {} in order to allow a first check for reg == 0.
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Co-developed-by: Frank Wang <frank.wang@rock-chips.com>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
phy-supply is now handled at uclass level. Remove it from the drivers that
implement it at the driver level.
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Suggested-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
Some phys require a phy-supply property that is a phandle to a regulator
that needs to be enabled for phy operations.
Implement basic supply lookup, enable and disabling, if DM_REGULATOR is
available.
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
[jonas@kwiboo.se:
use regulator_set_enable_if_allowed and disable if power_on ops fails]
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
The fdt_addr_t and phys_addr_t size have been decoupled. A 32bit CPU
can expect 64-bit data from the device tree parser, so fix some
debug strings with fdt_addr_t to be able to handle both sizes.
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
The fdt_addr_t and phys_addr_t size have been decoupled. A 32bit CPU
can expect 64-bit data from the device tree parser, so use
devfdt_get_addr_index_ptr instead of the devfdt_get_addr_index function
in the various files in the drivers directory that cast to a pointer.
As we are there also streamline the error response to -EINVAL on return.
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
The fdt_addr_t and phys_addr_t size have been decoupled. A 32bit CPU
can expect 64-bit data from the device tree parser, so use
dev_read_addr_ptr instead of the dev_read_addr function in the
various files in the drivers directory that cast to a pointer.
As we are there also streamline the error response to -EINVAL on return.
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
It is possible to use host-side USB with externally-provided VBUS. For
example, some USB OTG cables have an extra power input which powers
both the board and the USB peripheral.
To support this setup, skip enabling the VBUS switch/regulator if VBUS
voltage is already present. This behavior matches the Linux PHY driver.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Add support for the Innosilicon DSI-DPHY driver for Rockchip SOCs.
The driver was ported from Linux and tested on a Rockchip RK3566
based device to query the panel ID via a DSI command.
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Add Renesas Ethernet SERDES driver for R-Car S4-8 (r8a779f0).
The datasheet describes initialization procedure without any information
about registers' name/bits. So, this is all black magic to initialize
the hardware. Especially, all channels should be initialized at once.
This driver is imported and adjusted from Linux 6.3-rc1 commit:
50133cd3e8dd1 ("phy: renesas: r8a779f0-eth-serdes: Remove retry code in .init()")
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Add two new callbacks matching the Linux ones. The .set_mode is used to set
PHY mode and submode, where mode is either USB, Ethernet, and so on, while
submode is e.g. for Ethernet case RGMII, RMII, and so on. The .set_speed is
used to configure link speed into the PHY. Unlike the existing configure
callback, which is used to pass arbitrary custom information to the PHY,
these two callbacks are used to pass standardized set of information to
the PHY.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
The WIZ acts as a wrapper for SerDes and has Lanes 0 and 2 reserved
for USB for type-C lane swap if Lane 1 and Lane 3 are linked to the
USB PHY that is integrated into the SerDes IP. The WIZ control register
has to be configured to support this lane swap feature.
The support for swapping lanes 2 and 3 is missing and therefore
add support to configure the control register to swap between
lanes 2 and 3 if PHY type is USB.
Signed-off-by: Sinthu Raja <sinthu.raja@ti.com>
It's possible that the Type-C plug orientation on the DIR line will be
implemented through hardware design. In that situation, there won't be
an external GPIO line available, but the driver still needs to address
this since the DT won't use the typec-dir-gpios property.
Add code to handle LN10 Type-C swap if typec-dir-gpios property is not
specified in DT.
Signed-off-by: Sinthu Raja <sinthu.raja@ti.com>
The T-PHY controller is designed to use use PLL integer mode, but
in fact use fractional mode for some ones on mt8195 by mistake,
this causes signal degradation (e.g. eye diagram test fail), fix
it by switching PLL to 26Mhz from default 48Mhz to improve signal
quality.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Prefer to make use of FIELD_PREP() macro to prepare bitfield value,
then no need local macros anymore.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
RK3568 has two USB 2.0 PHYs, and each PHY has two ports, the OTG port
of PHY0 support OTG mode with charging detection function, they are
similar to previous Rockchip SoCs.
However, there are three different designs for RK3568 USB 2.0 PHY.
1. RK3568 uses independent USB GRF module for each USB 2.0 PHY.
2. RK3568 accesses the registers of USB 2.0 PHY IP directly by APB.
3. The two ports of USB 2.0 PHY share one interrupt.
This patch only PHY1 with necessary attributes required to function
USBPHY1 on U-Boot.
Co-developed-by: Ren Jianing <jianing.ren@rock-chips.com>
Signed-off-by: Ren Jianing <jianing.ren@rock-chips.com>
Co-developed-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Manoj Sai <abbaraju.manojsai@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
New Rockchip devices have the usb phy nodes as standalone devices.
These nodes have register nodes with #address_cells = 2, but only
use 32 bit addresses.
Adjust the driver to check if the returned address is "0", and adjust
the index in that case.
Derived and adjusted the similar change from linux-next with below
commit <9c19c531dc98> ("phy: phy-rockchip-inno-usb2: support
#address_cells = 2")
Co-developed-by: Manoj Sai <abbaraju.manojsai@amarulasolutions.com>
Signed-off-by: Manoj Sai <abbaraju.manojsai@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Add USB3 PHY driver support to control clocks and resets needed to enable
PHY. The phy_ops->init() and exit() control PHY clocks and resets only,
and clocks and resets for the controller and the parent logic are enabled
in advance.
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Marek Vasut <marex@denx.de>
This converts 2 usages of this option to the non-SPL form, since there is
no SPL_USB_MUSB_HOST defined in Kconfig
Signed-off-by: Simon Glass <sjg@chromium.org>
At this point, the remaining places where we have a symbol that is
defined as CONFIG_... are in fairly odd locations. While as much dead
code has been removed as possible, some of these locations are simply
less obvious at first. In other cases, this code is used, but was
defined in such a way as to have been missed by earlier checks. Perform
a rename of all such remaining symbols to be CFG_... rather than
CONFIG_...
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
If a clock doesn't supply the enable hook, clk_enable() will return
-ENOSYS. In this case the clock is always enabled so there is no error
and the phy initialisation should continue.
Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Use regulator_set_enable_if_allowed() api instead of regulator_set_enable()
while disabling vbus supply. This way the driver doesn't see an error
when it disable an always-on regulator for VBUS.
This patch is needed for STM32MP157C-DK2 board when the regulator
v3v3: buck4 used as the phy vbus supply in kernel device tree
is always on with the next hack for low power use-case:
&usbphyc_port0 {
...
/*
* Hack to keep hub active until all connected devices are suspended
* otherwise the hub will be powered off as soon as the v3v3 is disabled
* and it can disturb connected devices.
*/
connector {
compatible = "usb-a-connector";
vbus-supply = <&v3v3>;
};
};
Without this patch and the previous update in DT the command
"usb stop" failed and the next command "usb start" cause a crash.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Add support for j784s4-wiz-10g device which has two core reference
clocks (e.g core_ref_clk, core_ref1_clk) which requires an additional
mux selection option.
Signed-off-by: Matt Ranostay <mranostay@ti.com>
In drivers usb/host/{ehci,ohci}-generic.c, {ehci,ohci}_setup_phy() and
{ehci,ohci}_shutdown_phy() shares 95% of common code.
Factorize this code in new generic_{setup,shudown}_phy() functions.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
ck_usbo_48m is generated by usbphyc PLL and used by OTG controller
for Full-Speed use cases with dedicated Full-Speed transceiver.
ck_usbo_48m is available as soon as the PLL is enabled.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Add the counter of the PLL user n_pll_cons managed by the 2 functions
stm32_usbphyc_pll_enable / stm32_usbphyc_pll_disable.
This counter allow to remove the function stm32_usbphyc_is_init
and it is a preliminary step for ck_usbo_48m introduction.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
QCS404 SoC supports two types of PHY, one supports high speed mode or
USB2 PHY and the other supports super speed mode or USB3 PHY. So add
corresponding PHY drivers.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
