openrisc: Add support for liteuart emergency printing

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This patch adds support for sending emergency print output, such as
unhandled exception details, to a liteuart serial device.  This is the
default device available on litex platforms.

If a developer want to use this they should update UART_BASE_ADD
to the address of liteuart.

Signed-off-by: Stafford Horne <shorne@gmail.com>

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This commit is contained in:

Stafford Horne 2022-05-15 13:33:14 +09:00

parent e449759c24

commit 29bbb2a90f

1 changed files with 12 additions and 1 deletions

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arch/openrisc/kernel/head.S

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