The RB1 and RB2 have a single USB controller which is manually muxed
between a type-c port and an internal USB hub via a DIP switch. OTG is
supported in Linux, but the DWC3 driver in U-Boot can only handle a
single mode, and defaults to peripheral mode.
We did hack around this on the RB2, but the RB1 got left out.
Now that we can fix up the live tree before devices are bound, drop the
DTS hacks and do the fixup at runtime instead.
Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
we don't rewrite the volume buttons any more.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
The debug log here had the logic completely backwards, even though the
code is actually correct. Remove it since it's extraneous anyway.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
There's no need to waste time fixing up nodes that aren't used on this
device. Skip them.
Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
This will now apply fixups prior to devices being bound, which makes it
possible to enable/disable devices and adjust more properties that might
be read before devices probe.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
The fdt_node_check_compatible() function returns 0 on success which is
pretty confusing, and we were using it wrong!
Invert the condition check and refactor things to be more readable.
Additionally, add the check for the RB1 which needs the same fixup as
the RB2.
Reported-by: Sam Day <me@samcday.com>
Fixes: e64503f1fc ("mach-snapdragon: implement ft_board_setup() for USB role selection")
Tested-by: Alexey Minnekhanov <alexeymin@postmarketos.org>
Tested-by: Sam Day <me@samcday.com>
Link: https://lore.kernel.org/r/20250331104327.321339-1-caleb.connolly@linaro.org
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
The length of a property includes '\0' in a string type one, so
the length passed by needs to have that in account, if not,
when getting the property value it will fail because it
has the wrong size.
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Tested-by: caleb.connolly@linaro.org # db845c
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250227094911.497219-2-rui.silva@linaro.org
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Some Qualcomm boards have only one USB controller which is muxed between
the type-c port and an internal USB hub for type-A and ethernet. We
modify the DT for these to force them to host mode in U-Boot. However in
Linux DRD role switching is supported (required, even). Use
ft_board_setup() to adjust the dr_mode property for these boards.
While we're here, define pr_fmt for this file so we can more easily
identify log messages.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
We don't support the RPM(h)PD power domains in U-Boot, and we don't need
to - the necessary resources are on, and we aren't going to enter any
low power modes.
We could try using a no-op device, but this requires adding a compatible
for every platform, and just pollutes the driver model. So instead let's
just remove every "power-domains" property that references the RPM(h)pd
power controller. This takes <1ms as we're using OF_LIVE.
Of note, this only applies to drivers which are loading post-relocation.
Drivers loaded pre-reloc that reference the rpm(h)pd still need
DM_FLAG_DEFAULT_PD_CTRL_OFF in their flags.
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
We don't support USB super-speed in U-Boot yet, we lack the SS PHY
drivers, however from my testing even with a PHY driver there seem to be
other issues when talking to super-speed peripherals.
In pursuit of maintaining upstream DT compatibility, and simplifying
porting for new devices, let's implement the DT fixups necessary to
configure USB in high-speed only mode at runtime. The pattern is
identical for all Qualcomm boards that use the Synaptics DWC3
controller:
* Add an additional property on the Qualcomm wrapper node
* Remove the super-speed phy phandle and phy-name entries.
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
