From: Sergei Shtylyov <sshtylyov@ru•mvista.com>
To: Josh Boyer <jwboyer@linux•vnet.ibm.com>
Cc: Vitaly Wool <vwool@ru•mvista.com>, linuxppc-embedded@ozlabs•org
Subject: Re: [PATCH] adding ROM chips to device tree
Date: Thu, 02 Nov 2006 22:09:26 +0300 [thread overview]
Message-ID: <454A4266.8040505@ru.mvista.com> (raw)
In-Reply-To: <1162474237.11351.7.camel@zod.rchland.ibm.com>
Hello.
Josh Boyer wrote:
>>+
>>+ Required properties:
>>+
>>+ - device_type : has to be "rom"
> Why "rom" instead of "NOR"?
What does "NOR" mean -- logical operator? :-)
I'd yet agree with "nor-flash", however, the physmap-driven device may not
always be writeable, IIUC...
>>+ - compatible : Should be the name of the MTD driver. Currently, this is
>>+ most likely to be "physmap".
>>+ - reg : Offset and length of the register set for the device.
> reg doesn't really describe a register set here. It's the overall
> memory space for flash.
This is no more a standard boilerplate, if you look at this file.
Also remember that we're not describing "physmap" compatible devices only.
>>+
>>+ Recommended properties :
>>+
>>+ - bank-width : Width of the flash data bus in bytes. Must be specified
>>+ for the NOR flashes.
> This is a required property, not a recommended one.
Required by *certain* driver. Others may not need it (know beforehand).
> josh
WBR, Sergei
next prev parent reply other threads:[~2006-11-02 19:09 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-02 11:55 [PATCH] adding ROM chips to device tree Vitaly Wool
2006-11-02 13:30 ` Josh Boyer
2006-11-02 13:45 ` Vitaly Wool
2006-11-02 19:09 ` Sergei Shtylyov [this message]
2006-11-02 20:23 ` Vitaly Wool
2006-11-07 18:29 ` Sergei Shtylyov
2006-11-02 15:31 ` Grant Likely
2006-11-02 15:53 ` Vitaly Wool
2006-11-02 19:01 ` Sergei Shtylyov
2006-11-02 20:30 ` Vitaly Wool
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