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From: terry <tqiu@neuros.com.cn>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] IO access in U-BOOT
Date: Tue, 29 Nov 2005 16:39:00 +0800	[thread overview]
Message-ID: <1133253541.2543.36.camel@PC6> (raw)

hi,

I use the ARM926ejs, it need set the I/O as input, output or other
status. Also it need read the I/O port.And "all IO is memory mapped".
In u-boot how to support this, where to configure it, or it need write
by myself.

Another question, in uboot, the  irq of ARM926ejs was closed by a macro
CONFIG_USE_IRQ. So the irq interrupt is no used, then how u-boot support
the keyboard, network, and IDE hard disk, polling? if need support USB,
can it still use polling driver?

Does someone have more document about the u-boot, I really need

Thank you

Terry

             reply	other threads:[~2005-11-29  8:39 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-11-29  8:39 terry [this message]
  -- strict thread matches above, loose matches on Subject: below --
2005-11-29  8:50 [U-Boot-Users] IO access in U-BOOT 蔡栋
2005-11-29  9:50 ` Wolfgang Denk

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