#12778 NORM Future : XO-4 MMC clock delay cycles misconfigured

Zarro Boogs per Child bugtracker at laptop.org
Fri Apr 18 23:17:23 EDT 2014

#12778: XO-4 MMC clock delay cycles misconfigured
 Reporter:  Quozl   |                 Owner:  Quozl                            
     Type:  defect  |                Status:  new                              
 Priority:  normal  |             Milestone:  Future Release                   
Component:  kernel  |               Version:  Development build as of this date
 Keywords:          |           Next_action:  diagnose                         
 Verified:  0       |   Deployment_affected:                                   
Blockedby:          |              Blocking:                                   
 kernel looks for property mrvl,clk-delay-cycles but firmware provides
 property clk-delay-cycles.

 due to some other problem, the kernel uses an unexpected value for
 clk_delay_cycles, and misconfigures the SDHCI.


 impact not assessed, possibly a performance impact when using eMMC,
 external SD card, or WiFi.

Ticket URL: <http://dev.laptop.org/ticket/12778>
One Laptop per Child <http://laptop.org/>
One Laptop per Child bug tracking system

More information about the Bugs mailing list