From: Robin Gilks <robin.gilks@tait.co.nz>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] I2C POST test known problems?
Date: Thu, 17 Jul 2003 11:16:24 +1200 [thread overview]
Message-ID: <3F15DCC8.6050106@tait.co.nz> (raw)
In-Reply-To: <20030716225904.86D7CC6D82@atlas.denx.de>
Wolfgang Denk wrote:
> In message <3F15D14E.3020006@tait.co.nz> you wrote:
>
>>System is mpc8xx based, very close to the Motorola FADS hardware (its
>>the updated version!!).
>
>
> Are you sure I2C is working at all on your board?
>
I'm not at all sure - in fact I don't think there are any I2C devices on
the board but it should still scan the address range and say pass/fail
according to its findings without locking up. Very odd that i2c_init
gets called twice without a problem (once from Flash very early on) and
once later before the POST tests run without a problem but then on the
3rd go (when called from i2c_probe) it hangs up!!
Think I'd better check its being put into Master mode otherwise it won't
do anything until it sees a clock presumably...
--
Robin Gilks
Senior Design Engineer Phone: (+64)(3) 357 1569
Tait Electronics Fax : (+64)(3) 359 4632
PO Box 1645 Christchurch Email : robin.gilks at tait.co.nz
New Zealand
next prev parent reply other threads:[~2003-07-16 23:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-16 22:15 [U-Boot-Users] I2C POST test known problems? Robin Gilks
2003-07-16 22:27 ` Robin Gilks
2003-07-16 22:38 ` Nye Liu
2003-07-16 23:00 ` Wolfgang Denk
2003-07-16 22:58 ` Wolfgang Denk
2003-07-16 23:16 ` Robin Gilks [this message]
2003-07-16 23:29 ` Wolfgang Denk
2003-07-16 22:58 ` Wolfgang Denk
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