tegra124: Add a test function which spams exclamation points on the UART.
This function spews characters on the console and, until we have a working
console, is an easy way to see whether the system boots to a particular point.
For some reason waiting for transmitter to be empty hangs, but transmitting
characters still works.
TEST=Enabled the function and saw the UART output.
Signed-off-by: Gabe Black <firstname.lastname@example.org>
Reviewed-by: Ronald Minnich <email@example.com>
Commit-Queue: Gabe Black <firstname.lastname@example.org>
Tested-by: Gabe Black <email@example.com>
1 file changed