[roll] Roll fuchsia [kernel] Support IRQ configuration for UART

First we introduce a new field into the zbi_dcfg_simple_t, which
repurposes an existent reserved field as a flags field from now on.

4 bits are introduced which indicate whether is level or edge triggered.
The following two bits indicate whether its active low or high, or
whether is active low-to-high or high-tolow.

Intentionally the flag field left as zero implied no configuration is
available, and will be left to whatever the platform does by default.

In some cases like RISCV, the devicetree does not provide this
information.

As of this CL, the uart IRQ information is obtained from the devicetree,
and when available is applied before registering the irq handler.

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1052916
Original-Revision: 5a2662815a44b6e982f92d7946a2b032896d07a8
GitOrigin-RevId: 2a8ef473d20e8f534f3bd20a2f56e20636846ac0
Change-Id: I9eafdaaedc0b9d3a765785ecead0c01aea8249bd
1 file changed
tree: 845158f8b71ecf439b4d430f1420da6f06757ae1
  1. ctf/
  2. git-hooks/
  3. infra/
  4. third_party/
  5. cts
  6. firmware
  7. flower
  8. jiri.lock
  9. MILESTONE
  10. minimal
  11. prebuilts
  12. README.md
  13. stem
  14. test_durations
  15. toolchain
README.md

Integration

This repository contains Fuchsia's Global Integration manifest files.

Making changes

All changes should be made to the internal version of this repository. Our infrastructure automatically updates this version when the internal one changes.

Currently all changes must be made by a Google employee. Non-Google employees wishing to make a change can ask for assistance via the IRC channel #fuchsia on Freenode.

Obtaining the source

First install Jiri.

Next run:

$ jiri init
$ jiri import minimal https://fuchsia.googlesource.com/integration
$ jiri update

Third party

Third party projects should have their own subdirectory in ./third_party.