OS4 patch 1.2 for Sam440ep/flex boards
Date 11-Feb-2011 23:35:14
Topic: Hardware News
| There's an update of sam440ep_setup on OS4Depot.
With this new setting read speed increase around 50% on Radeon PCI cards
(up to 42 MB/s on a M9 card) and around 200% on RadeonHD PCI cards
What it does:
On some Sam440ep boards, the MMUCR register is not set correctly at bootstrap.
This leads to poor write L1 cache performances.
The utility check the register, and if needed, modify it.
On all Sam440ep boards with a Radeon card enables read prefetching for graphic ram.
If a Radeon card is detected, the utility will modify the POM2 PCI registers to enable read prefetching.
This speed up reads for the gfx card from 15 MB/s to 30 MB/s on a M9 card.
Sets the Latency Timer on the 440ep PCI Bridge,
With this new setting read speed increase around 50% on Radeon PCI cards
(up to 42 MB/s on a M9 card) and around 200% on RadeonHD PCI cards
Author:
ACube Systems Srl
OS4Depot submitter:
Max m3x Tretene
Download:
sam440ep_setup.lha
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