User manual
U-Boot for MPL SBC
User Manual
2003 by MPL AG
6
MEH-10082-002 Rev. D
High-Tech • Made in Switzerland
3. Using U-Boot
This section describes the generally use of the U-Boot. Normally the MPL boards use serial line 0 as its console device.
The parameters of this serial communication are as follows by default:
• 9600 baud
• 8 bits
• parity none
• 1 stop bit
• no handshake
Use your favorite terminal program (kermit, minicom, ..) to get in contact with U-Boot’s command interface.
Please note that you have to use a so called “null modem” or “crossed” cable to get a working communication
link.
3.1 Start screen
Depending on the U-Boot version and the board, the start screen looks different. Its main purpose is to provide
information of the board and the status of the peripherals. Below is a start screen just for reference:
U-Boot 0.3.2 (Jun 4 2003 - 14:07:51)
(c) 2003 by MPL AG Switzerland, MEV-10072-001 released
CPU: IBM PowerPC 405GP Rev. E at 198 MHz (PLB=99, OPB=33, EBC=24 MHz)
PCI sync clock at 33 MHz, internal PCI arbiter enabled
Board: PIP405 SN: 500 Boot Config: 0xe
DRAM: single-sided DIMM 128 MB
FLASH: (Flash Boot) 4 MB
IDE: Bus 0: ..OK Bus 1: OK
Device 0: Model: HITACHI_DK239A-48 Firm: 00X8A0A2 Ser#: 448290
Type: Hard Disk
Capacity: 4645.6 MB = 4.5 GB (9514260 x 512)
Device 1: not available
Device 2: Vendor: CREATIVE Prod.: CD5233E Rev: 2.02
Type: Removable CD ROM
Capacity: 450.9 MB = 0.4 GB (230864 x 2048)
Device 3: not available
SCSI: scanning bus for devices...
Device 0: (3:0) Vendor: MPL Prod.: MC-DISK-E[0] Rev: 3.9g
Type: Removable Hard Disk
Capacity: 496.1 MB = 0.5 GB (1016063 x 512)
Device 1: (3:3) Vendor: MPL Prod.: MC-DISK-E[1] Rev: 3.9g
Type: Removable Hard Disk
Capacity: not available
DOC: No DiskOnChip found
Rev: PIP405-1 Rev A PLD0 0 PLD1 0
In: serial
Out: serial
Err: serial
=>
3.1.1 Information of the start-up screen
The information on the start-up screen is easily to identify:
• U-Boot version number and build date
• CPU type and strapping settings
• Board type and serial number
• DRAM Size
• Flash Size and Boot source
• IDE devices
• SCSI devices
• Disk On Chip Devices
• Additional Information
• Console assignment