lkml.org 
[lkml]   [2013]   [Nov]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] Make the mtdblock read/write skip the bad nand sector
Hi!

> > Hi,
> >
> > > Thanks a lot for the insight. After reading this, I'm wondering what's
> > > preventing us from killing MTD block support altogether. Artem, already
> > > suggested it a while back...
> >
> > People using squashfs/cramfs/readonly ext2/.. on a NOR flash?
>
> And people who *still*, after all these years, don't realise that they
> don't actually need it to mount JFFS2. Even as the root file system
> (although they *do* need rootfstype=jffs2).

I must admit I'm such person...

I guess printk("...you don't really need mtdblock...") in jffs2's
mount code would probably improve that realisation...

This certainly does not help:

pavel@amd:/data/l/linux-n900$ grep -ri mtdblock Documentation
Documentation/frv/booting.txt: exec -c "console=ttySM0,115200
ip=:::::dhcp root=/dev/mtdblock2 rw"
Documentation/frv/booting.txt: /dev/mtdblock3 Fourth RedBoot
partition on the System Flash
Documentation/arm/SA1100/Assabet:which is the third one. Within
Linux, this correspond to /dev/mtdblock2.
Documentation/arm/SA1100/Assabet: exec -b 0x100000 -l 0xc0000 -c
"root=/dev/mtdblock2"

(Should not mtdblock be at least in devices.txt file?)

BTW... is there documentation of mtdblock "translation layer"
somewhere? I realize it is very simple, but it does need to keep some
data?

I guess running jffs on regular block device (USB stick, SD card) is
not feasible?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


\
 
 \ /
  Last update: 2013-11-29 15:01    [W:0.109 / U:0.316 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site