Beagle XM lacks proper 1Ghz support
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Linaro Ubuntu |
Won't Fix
|
Medium
|
Unassigned | ||
Release Notes for Ubuntu |
Fix Released
|
Undecided
|
Canonical ARM Developers | ||
Precise |
Fix Released
|
Undecided
|
Unassigned | ||
linaro-landing-team-ti |
Confirmed
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Won't Fix
|
Medium
|
Ricardo Salveti | ||
Precise |
Won't Fix
|
Medium
|
Unassigned | ||
Quantal |
Won't Fix
|
Medium
|
Ricardo Salveti |
Bug Description
=== RELEASE NOTES TEXT ===
Beagle XM systems which are capable of running at 1GHZ will be initialised at 800MHZ leading to slower that optimal performance. (Bug:771537)
===
Setting the mpurate higher than 900 on beagleXM fails to properly get set by the kernel. The beagleXM is capable of 1000, and is what u-boot autosets. Ricardo Salveti is working on a patch to fix this. Will mark as in-progress with a target of natty-updates.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-omap 2.6.38.8.22
ProcVersionSign
Uname: Linux 2.6.38-8-omap armv7l
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices: Error: [Errno 2] No such file or directory
Architecture: armel
ArecordDevices: Error: [Errno 2] No such file or directory
Date: Tue Apr 26 15:43:59 2011
Lsusb:
Bus 001 Device 005: ID 05d5:6781 Super Gate Technology Co., Ltd
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
ProcEnviron:
SHELL=/bin/bash
LANG=en_US.UTF-8
ProcKernelCmdLine: ro elevator=noop vram=12M omapfb.
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
tags: | added: iso-testing |
Changed in ubuntu-release-notes: | |
assignee: | nobody → Canonical ARM Developers (canonical-arm-dev) |
Changed in linaro-ubuntu: | |
milestone: | 11.08 → 11.09 |
tags: | added: beaglexm |
Changed in linaro-ubuntu: | |
assignee: | nobody → Ricardo Salveti (rsalveti) |
Changed in linaro-ubuntu: | |
milestone: | 11.09 → 11.10 |
Changed in linaro-ubuntu: | |
milestone: | 11.10 → 11.11 |
importance: | High → Medium |
Changed in ubuntu-release-notes: | |
status: | New → In Progress |
description: | updated |
Changed in ubuntu-release-notes: | |
status: | In Progress → Fix Released |
no longer affects: | u-boot-linaro (Ubuntu Precise) |
no longer affects: | u-boot-linaro (Ubuntu) |
Changed in linux (Ubuntu Precise): | |
status: | New → In Progress |
importance: | Undecided → Medium |
tags: | added: precise quantal |
Changed in linaro-ubuntu: | |
assignee: | Ricardo Salveti (rsalveti) → nobody |
status: | Triaged → Won't Fix |
affects: | linux-linaro → linaro-landing-team-ti |
After looking over the proper fix to enable 1Ghz support, I found that upstream only recommends using at most 800MHz, as to have proper and safe 1GHz support we need Smart reflex class 1.5 and ABB. We can remove the limit for mpurate, but it doesn't seems a safe solution (at least that was the conclusion from upstream).
The patch that enables 800Mhz is already upstream, with hash 8743410. Will propose this fix to the kernel team, but mpurate is still going to fail for 1000Hz.
I'm just waiting the build to finish and will publish the packages to test, once it's confirmed that's working with 800Mhz I'll send the pull request.