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Syntax
baud <index> <baudrate>
Parameters
<index> 0 through the total number of UARTS minus one
<baudrate> baud rate.
Operation
Use this command to change the speed for a UART in the system. This command works for all
UARTs visible to EFI/POSSE. If the UART is part of processor dependent hardware (PDH) space
and is initialized by the core firmware, this command communicates the settings to core firmware
so the UART can be initialized with the new settings on the next boot.
System default is 9600 baud.
Other communication parameters are listed in Table D-2.
Table D-2 Communications Parameters
ValueParameter
1RECEIVE_FIFO_DEPTH
1000000TIMEOUT
No parityPARITY
8DATA_BITS
1STOP_BITS
0CONTROL_MASK
boottest
Interacts with the speedy boot variable enabling it to be set appropriately.
Syntax
boottest Displays status of all speedy boot bits
boottest on Run all tests (for a normal boot time)
boottest off Skip all tests (for a faster boot time)
boottest [test] Displays status of specific Speedy Boot bit
boottest [test] [on off] Sets or clears a specific Speedy Boot bit
Parameters
[test] Each test can be set or cleared:
booting_valid Enable/disable system firmware response to BOOTING
bit. If OS Speedy Boot aware set to on.
early_cpu Enable/disable early CPU selftests.
late_cpu Enable/disable late CPU selftests.
platform Enable/disable system board hardware tests.
chipset Enable/disable CEC tests.
io_hw Enable/disable EFI driver Core I/O tests.
mem_init Enable/disable memory initialization.
mem_test Enable/disable full destructive memory tests.
EFI/POSSE Commands 323