Booting From An Sd Card; Booting Vxworks Through The Network - SMART Embedded Computing Penguin Edge MVME250 Series Installation And User Manual

Boot System
6.3.4

Booting from an SD Card

1. Make sure that the kernel, dtb, and ramdisk are saved in the SD card with FAT
partition.
2. Configure the U-Boot environment variable:
setenv File_uImage <kernel_image>
setenv File_dtb <kernel dtb>
setenv File_ramdisk <ramdisk>
saveenv
3. Initialize SD card:
mmcinfo
4. Load the files from the SD card to the memory:
# option: mmc - interface, 0:1 - device 0 partition 1
fatload mmc 0:1 1000000 $File_uImage
fatload mmc 0:1 2000000 $File_ramdisk
fatload mmc 0:1 c00000 $File_dtb
5. Boot the Linux in memory:
bootm 1000000 2000000 c00000
6.3.5

Booting VxWorks Through the Network

In this mode, the U-Boot downloads and boots VxWorks from an external TFTP server.
1. Make sure that the VxWorks image is accessible to the board from the TFTP server.
2. Configure U-Boot environment variables:
setenv ipaddr <IP address of MVME2502>
setenv serverip <IP address of TFTP server>
setenv gatewayip <gateway IP>
setenv netmask <netmask>
setenv vxboot 'tftpboot $vxbootfile && setenv bootargs $vxbootargs
&& bootvx'
setenv vxbootfile <VxWorks_image>
setenv vxbootargs 'motetsec(0,0)<IP address of TFTP
server>:VxWorks h=<IP address of TFTP server> e=<IP address of
MVME2502>:ffffff00 b=<unused IP> u=vxworks pw=vxworks f=0x80'
saveenv
3. TFTP the files from the server to local memory, then boot:
122 MVME2502 Installation and Use (6806800R96L)
Boot System