VAR-SOM-OM35/7 Linux Setting MPU Rate: Difference between revisions
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=VAR-SOM-OM35/7 Setting MPU Rate = | =VAR-SOM-OM35/7 Setting MPU Rate = | ||
== Setting the MPU Rate from bootargs == | == Setting the MPU Rate from bootargs == | ||
Revision as of 13:56, 22 January 2014
VAR-SOM-OM35/7 Setting MPU Rate
Setting the MPU Rate from bootargs
The Linux kernel provides support for boot time allocation of mpurate. This needs to be specified in the bootargs. This is done by adding the following text to the bootargs.
mpurate=600
User can specify appropriate mpurate.
example, NFS bootargs, set MPU rate to 1Ghz:
setenv bootargs_nfs 'mem=80M@0x80000000 mem=128M@0x88000000 console=ttyS2,115200n8 noinitrd rw root=/dev/nfs nfsroot=/mnt/nfs,nolock ethaddr=$(ethaddr) ip=dhcp consoleblank=0 mpurate=1000'
By default the mpurate for VAR-SOM-OM35 is 500Mhz.
By default the mpurate for VAR-SOM-OM37 is 800Mhz.