U-Boot Test Options

U-Boot diagnostic tests run in one of three modes: normal, quick, or extended. Normal mode is the default; quick or extended modes can be selected as described in Running the U-Boot Diagnostic Tests and Viewing the Results.

The tests in each mode include:

Table 1 U-Boot Component Tests

U-Boot Component Test	Normal	Quick	Extended	Description
Memory Data Bus Test	X	X	X	Checks for opens/shorts on SP memory data bus.
Memory Address Bus Test	X	X	X	Checks for opens/shorts on SP memory address bus.
Memory Data Integrity Test			X	Checks for data integrity on the SP memory.
Flash Test			X	Checks access to flash.
WatchDog Test			X	Checks the watchdog functionality on the SP.
I2C Probe Tests	X		X	Checks the connectivity to I2C devices on standby power.
Ethernet Test	X	X	X	Verifies ability to read from specified Ethernet port.
Ethernet Link Test	X	X	X	Verifies link on specified PHY.
Ethernet Internal Loopback Test	X		X	Verifies Ethernet functionality by sending and receiving packets.
Real Time Clock Test	X		X	Checks functionality of the real-time clock on the SP.
USB 1.1 Test			X	Checks USB 1.1 functionality.
USB 1.1 BIST	X		X	Runs internal USB 1.1 built-in self-test (BIST).
USB 2.0 Test			X	Checks USB 2.0 functionality.
BIOS Flash ID Test	X		X	Verifies ability to read from the BIOS flash.
Serial Presence Detect (SPD) Access Test			X	Verifies DIMM SPD access along with checksum and prints SPD information.
Power CPLD Test	X	X	X	Verifies the correct power revision of the complex programmable logic device (CPLD).

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