| #
2f5307d6 |
| 25-May-2018 |
Bryan O'Donoghue <bryan.odonoghue@linaro.org> |
drivers: imx: crash-console: Add a mxc_crash_console driver
This patch does two main things
- It implements the crash console UART init in assembly, as a
hard-coded 115200 8N1 assumed from the 24
drivers: imx: crash-console: Add a mxc_crash_console driver
This patch does two main things
- It implements the crash console UART init in assembly, as a
hard-coded 115200 8N1 assumed from the 24 MHz clock.
If the clock setup code has not run yet, this code can't work but,
setting up clocks and clock-gates is way out of scope for this type of
recovery function.
- It adds code to write a character out of the NXP UART without using any
stack-based operations when doing so.
- Provides support for crash console in DCE or DTE mode.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
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