[External] - Slow MMC IO with Raspberry CM3+ Module

Ivan T. Ivanov iivanov at suse.de
Wed Nov 10 11:00:54 CET 2021


On 11-03 20:57, Vincent Fazio wrote:
> Date: Wed, 3 Nov 2021 20:57:13 +0000
> From: Vincent Fazio <vfazio at xes-inc.com>
> To: Mario Lombardo <ml at akamo.de>, "u-boot at lists.denx.de"
>  <u-boot at lists.denx.de>
> Subject: RE: [External] - Slow MMC IO with Raspberry CM3+ Module
> Message-ID: <BN1P110MB09373DD94630D64646C46DF69F8C9 at BN1P110MB0937.NAMP110.PROD.OUTLOOK.COM>
Tags: all uboot

Hi Vincent,

> 
> Mario,
> 
> > -----Original Message-----
> > From: U-Boot <u-boot-bounces at lists.denx.de> On Behalf Of Mario 
> > Lombardo
> > Sent: Wednesday, November 3, 2021 5:40 AM
> > To: u-boot at lists.denx.de
> > Subject: [External] - Slow MMC IO with Raspberry CM3+ Module
> > 
> > Dear u-boot list,
> > 
> > I recently compiled (latest: 2021.10) code of uboot as a boot loader 
> > for the Compute Module 3+ (Raspberry). Everything works fine except one issue:
> > the IO from the storage is extreme slow. I read about issues in the 
> > past related to ext file systems. However the present issue relates to 
> > both ext and fat file systems so I assume its cause is different.
> 
> Please see this series: https://patchwork.ozlabs.org/project/uboot/list/?series=262375
> And this RPi issue: https://github.com/raspberrypi/firmware/issues/1619

Are your patches still needed? If I read the comments on the issue it
was fixed in RPi firmware and your workaround is not needed, correct?

Regards,
Ivan



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