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 91 Communications Parameters
Value
Parameter
1
RECEIVE_FIFO_DEPTH
1000000
TIMEOUT
No parity
PARITY
8
DATA_BITS
1
STOP_BITS
0
CONTROL_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
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