From: Scott Wood <scottwood@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] fsl: board EEPROM has the CRC in the wrong location
Date: Fri, 13 Jul 2012 18:12:03 -0500 [thread overview]
Message-ID: <5000AB43.6090406@freescale.com> (raw)
In-Reply-To: <20120713230100.5E9C1200320@gemini.denx.de>
On 07/13/2012 06:01 PM, Wolfgang Denk wrote:
> Dear Timur Tabi,
>
> In message <500098F6.8050702@freescale.com> you wrote:
>>
>> I honestly don't see what's wrong with checking the CRC in the old
>> location, and using it if it's valid. Like I said, we already
>
> You are interpreting something which can be random data.
>
>> if (e.version == 0)
>> crc_offset = 0x72;
>>
>> So here we're reading the 'version' field before we validate the data,
>> because we need to check the version to know where the CRC is.
>
> Argh. More crap ...
And how would you do it? You have to look at *something* first, and
whatever that is could be a coincidence if you think people are going to
stuff arbitrary data into the EEPROM.
-Scott
next prev parent reply other threads:[~2012-07-13 23:12 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-12 21:46 [U-Boot] [PATCH] fsl: board EEPROM has the CRC in the wrong location Timur Tabi
2012-07-12 22:03 ` sun york-R58495
2012-07-12 22:37 ` Scott Wood
2012-07-12 22:44 ` Timur Tabi
2012-07-12 22:46 ` sun york-R58495
2012-07-12 22:49 ` Scott Wood
2012-07-12 22:52 ` Timur Tabi
2012-07-13 4:32 ` Wolfgang Denk
2012-07-13 12:11 ` Tabi Timur-B04825
2012-07-13 21:26 ` Wolfgang Denk
2012-07-13 4:30 ` Wolfgang Denk
2012-07-13 4:38 ` sun york-R58495
2012-07-13 12:12 ` Tabi Timur-B04825
2012-07-13 21:22 ` York Sun
2012-07-13 12:10 ` Tabi Timur-B04825
2012-07-13 21:25 ` Wolfgang Denk
2012-07-13 21:29 ` Timur Tabi
2012-07-13 21:32 ` Wolfgang Denk
2012-07-13 21:39 ` Timur Tabi
2012-07-13 21:45 ` Scott Wood
2012-07-13 21:53 ` Timur Tabi
2012-07-13 22:19 ` Scott Wood
2012-07-13 22:22 ` Timur Tabi
2012-07-13 22:41 ` Scott Wood
2012-07-13 22:46 ` Timur Tabi
2012-07-13 22:54 ` Scott Wood
2012-07-13 23:01 ` Wolfgang Denk
2012-07-13 23:12 ` Scott Wood [this message]
[not found] ` <C5EFF1F960B6FC4C873CF9BD5FE250210791DCC8@039-SN2MPN1-013.039d.mgd.msft.net>
2012-07-15 12:52 ` Tabi Timur-B04825
2012-07-16 19:57 ` Wolfgang Denk
2012-07-16 22:32 ` Scott Wood
2012-07-13 22:59 ` Wolfgang Denk
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