From: Robert Schwebel <robert@schwebel.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] Board init
Date: Tue, 4 Mar 2003 14:24:46 +0100 [thread overview]
Message-ID: <20030304132446.GE3593@pengutronix.de> (raw)
Hi,
The PXA250 often has the problem that when it is powercycled during i2c
activity there are "hanging" transfers on the bus. We now have connected
one GPIO line to the i2c bus so that we are able to toggle the line
several times to let all bus participants think that current transfers
are finished.
Now I would like to add this method to u-boot; unfortunately, the
environment is read from the serial eeprom _before_
board/xxx/board.c:board_init() or misc_init_r are run. So where is the
best place to add the code? It could be put into
cpu/xscale/i2c.c:i2c_reset(), but as it definitely is board dependend I
would not think it is a good idea.
Robert
--
Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de
Pengutronix - Linux Solutions for Science and Industry
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Handelsregister: Amtsgericht Hildesheim, HRA 2686
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next reply other threads:[~2003-03-04 13:24 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-04 13:24 Robert Schwebel [this message]
2003-03-04 15:27 ` [U-Boot-Users] Board init Wolfgang Denk
2003-03-04 15:57 ` Robert Schwebel
2003-03-05 2:20 ` Adam Bezanson
2003-03-05 5:42 ` [U-Boot-Users] I2C Initialization Reinhard Meyer
2003-03-05 8:15 ` Wolfgang Denk
2003-03-05 13:05 ` Adam Bezanson
2003-03-05 14:44 ` Robert Schwebel
2003-03-05 17:39 ` Robert Schwebel
2003-03-05 19:12 ` Wolfgang Denk
2003-03-06 6:21 ` Robert Schwebel
2003-03-06 8:01 ` Wolfgang Denk
2003-03-06 8:40 ` Robert Schwebel
2003-03-06 9:24 ` Wolfgang Denk
2003-03-06 9:47 ` Robert Schwebel
2003-03-12 8:31 ` Joakim Tjernlund
2003-03-12 8:43 ` Robert Schwebel
2003-03-12 10:24 ` Joakim Tjernlund
2003-03-14 13:38 ` [U-Boot-Users] I2C Initialization, important Update!! Joakim Tjernlund
2003-03-14 14:08 ` Wolfgang Denk
2003-03-14 14:29 ` Joakim Tjernlund
2003-03-05 8:10 ` [U-Boot-Users] Board init Wolfgang Denk
2003-03-05 8:12 ` Robert Schwebel
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