u-boot.git/drivers/serial/serial_meson.c, branch master Unnamed repository; edit this file 'description' to name the repository. serial: serial_meson: add minimal non-DM driver 2025-12-11T10:44:41+00:00 Ferass El Hafidi funderscore@postmarketos.org 2025-11-26T12:17:05+00:00 ec958be7cc76b4f305fd78d55a20502d7c8b35b3 It is very limited and minimal, only implements putc/puts. This minimal driver is intended to be used in SPL, and other size-constrained situations. Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Ferass El Hafidi <funderscore@postmarketos.org> Link: https://patch.msgid.link/20251126-spl-gx-v5-3-6cbffb2451ca@postmarketos.org Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> 
It is very limited and minimal, only implements putc/puts.
This minimal driver is intended to be used in SPL, and other
size-constrained situations.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Ferass El Hafidi <funderscore@postmarketos.org>
Link: https://patch.msgid.link/20251126-spl-gx-v5-3-6cbffb2451ca@postmarketos.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet" 2024-05-20T19:35:03+00:00 Tom Rini trini@konsulko.com 2024-05-20T19:35:03+00:00 03de305ec48b0bb28554372abb40ccd46dbe0bf9 As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com> 
As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"" 2024-05-19T14:16:36+00:00 Tom Rini trini@konsulko.com 2024-05-19T02:20:43+00:00 d678a59d2d719da9e807495b4b021501f2836ca5 When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com> 
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.

This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
serial: Remove <common.h> and add needed includes 2024-05-07T14:00:56+00:00 Tom Rini trini@konsulko.com 2024-05-02T01:31:17+00:00 a8604d0ce1c0b5de855c6a205f00360c93a6d197 Remove <common.h> from this driver directory and when needed add missing include files directly. Reviewed-by: Peter Robinson <pbrobinson@gmail.com> Signed-off-by: Tom Rini <trini@konsulko.com> 
Remove <common.h> from this driver directory and when needed
add missing include files directly.

Reviewed-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
serial: amlogic: Add UART compatible for A1 board 2023-10-18T07:46:01+00:00 Igor Prusov ivprusov@salutedevices.com 2023-10-17T21:32:10+00:00 43a0b2cb9be2320615aa1cfc5318857ebce3b488 Add additional compatible to allow using serial driver with A1 board. After compatible change in DTS [1], serial_meson driver should still be able to work with console device. [1] https://lore.kernel.org/all/20230705181833.16137-8-ddrokosov@sberdevices.ru/ Signed-off-by: Igor Prusov <ivprusov@salutedevices.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20231017213211.121550-2-ivprusov@salutedevices.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> 
Add additional compatible to allow using serial driver with A1 board.
After compatible change in DTS [1], serial_meson driver should still be
able to work with console device.

[1] https://lore.kernel.org/all/20230705181833.16137-8-ddrokosov@sberdevices.ru/

Signed-off-by: Igor Prusov <ivprusov@salutedevices.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20231017213211.121550-2-ivprusov@salutedevices.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
serial: meson: fix meson_serial_pending() tx logic 2023-06-07T08:09:20+00:00 Mattijs Korpershoek mkorpershoek@baylibre.com 2023-06-06T16:07:48+00:00 afa85a2247297d660a63295bfbdd6e24e8e56902 According to the dm_serial_ops documentation, pending() should: > @return number of waiting characters, 0 for none, -ve on error And: > It is acceptable to return 1 if an indeterminant number > of characters is waiting. With the current implementation, we have: * FIFO is full -> pending() returns 0 * FIFO is partially used -> pending() returns 1 * FIFO is empty -> pending() returns 1 This is not the same as what the documentation requires. Moreover, since [1], arm reset now flushes all console devices (including serial) before the cpu gets reset. Because of the flawed logic: => reset # user calls reset flush() is called _serial_flush() is called ops->pending(dev, false) # never returns false # board hangs indefinitely without resetting. Fix it by using AML_UART_TX_EMPTY instead of AML_UART_TX_FULL. [1] commit c5f4cdb8eb60 ("console: Use flush() before panic and reset"), Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> Acked-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20230606-fix-meson-serial-pending-v1-1-6a54d4a01f76@baylibre.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> 
According to the dm_serial_ops documentation, pending() should:
> @return number of waiting characters, 0 for none, -ve on error

And:
> It is acceptable to return 1 if an indeterminant number
> of characters is waiting.

With the current implementation, we have:
* FIFO is full           -> pending() returns 0
* FIFO is partially used -> pending() returns 1
* FIFO is empty          -> pending() returns 1

This is not the same as what the documentation requires.

Moreover, since [1], arm reset now flushes all console devices
(including serial) before the cpu gets reset.
Because of the flawed logic:

  => reset # user calls reset
  flush() is called
  _serial_flush() is called
  ops->pending(dev, false) # never returns false
  # board hangs indefinitely without resetting.

Fix it by using AML_UART_TX_EMPTY instead of AML_UART_TX_FULL.

[1] commit c5f4cdb8eb60 ("console: Use flush() before panic and reset"),

Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230606-fix-meson-serial-pending-v1-1-6a54d4a01f76@baylibre.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
arm: amlogic: add setbrg op to serial device 2022-11-22T17:53:21+00:00 Edoardo Tomelleri e.tomell@gmail.com 2022-09-18T16:17:01+00:00 66006f86e85ad3af3393fdcd74b8373dbb7b6dc5 Implement setbrg in amlogic/meson serial device with driver model similar to how the meson_uart.c driver does it in Linux. Also configure (probe) the serial device with the new reg5 register. Signed-off-by: Edoardo Tomelleri <e.tomell@gmail.com> Link: https://lore.kernel.org/r/20220918161701.572814-1-e.tomell@gmail.com Acked-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> 
Implement setbrg in amlogic/meson serial device with driver model
similar to how the meson_uart.c driver does it in Linux. Also
configure (probe) the serial device with the new reg5 register.

Signed-off-by: Edoardo Tomelleri <e.tomell@gmail.com>
Link: https://lore.kernel.org/r/20220918161701.572814-1-e.tomell@gmail.com
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
serial: Replace CONFIG_DEBUG_UART_BASE by CONFIG_VAL(DEBUG_UART_BASE) 2022-06-06T22:01:21+00:00 Pali Rohár pali@kernel.org 2022-05-27T20:15:24+00:00 b62450cf229c50ad2ce819dd02a09726909cc89a CONFIG_VAL(DEBUG_UART_BASE) expands to CONFIG_DEBUG_UART_BASE or CONFIG_SPL_DEBUG_UART_BASE or CONFIG_TPL_DEBUG_UART_BASE and allows boards to set different values for SPL, TPL and U-Boot Proper. For ns16550 driver this support is there since commit d293759d55cc ("serial: ns16550: Add support for SPL_DEBUG_UART_BASE"). Signed-off-by: Pali Rohár <pali@kernel.org> 
CONFIG_VAL(DEBUG_UART_BASE) expands to CONFIG_DEBUG_UART_BASE or
CONFIG_SPL_DEBUG_UART_BASE or CONFIG_TPL_DEBUG_UART_BASE and allows boards
to set different values for SPL, TPL and U-Boot Proper.

For ns16550 driver this support is there since commit d293759d55cc
("serial: ns16550: Add support for SPL_DEBUG_UART_BASE").

Signed-off-by: Pali Rohár <pali@kernel.org>
dm: Use access methods for dev/uclass private data 2021-01-05T19:24:40+00:00 Simon Glass sjg@chromium.org 2020-12-23T02:30:28+00:00 0fd3d91152df5bb6c5f7b9ee68f01a9a1c9a875d Most drivers use these access methods but a few do not. Update them. In some cases the access is not permitted, so mark those with a FIXME tag for the maintainer to check. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Pratyush Yadav <p.yadav@ti.com> 
Most drivers use these access methods but a few do not. Update them.

In some cases the access is not permitted, so mark those with a FIXME tag
for the maintainer to check.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Pratyush Yadav <p.yadav@ti.com>
dm: treewide: Rename ..._platdata variables to just ..._plat 2020-12-13T23:51:09+00:00 Simon Glass sjg@chromium.org 2020-12-03T23:55:23+00:00 8a8d24bdf174851ebb8607f359d54b72e3283b97 Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org> 
Try to maintain some consistency between these variables by using _plat as
a suffix for them.

Signed-off-by: Simon Glass <sjg@chromium.org>