From: Tom Rini <trini@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] ns16550: allow UART address to be set dynamically
Date: Mon, 17 Dec 2012 16:09:11 -0500 [thread overview]
Message-ID: <50CF89F7.307@ti.com> (raw)
In-Reply-To: <50CBABF6.7040104@wwwdotorg.org>
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On 12/14/12 17:45, Stephen Warren wrote:
> On 12/14/2012 03:22 PM, Simon Glass wrote:
>> Hi Stephen,
> ...
>> Perhaps I can make the point another way. Assuming that the SOC
>> in question is ARM-based and has Linux support it either supports
>> FDT now or presumably will fairly soon.
>
> Sure, but I'm *explicitly* avoiding relying on DT for this,
> because there are plenty of things that happen before DT can or
> should be touched that might warrant serial port output.
Also totally true and valid. But what I'd like to see is:
parse_odmdata(void *ptr) {
if (ptr->console)
device_tree_register_uart(... fake it ...);
}
In other words, if we add the register a port call now, there's a
history of adding just one more thing, by someone else (say am335x and
our EVMs that differ on where primary UART is, and only need a little
different logic to say 'oh! this one.') and making a mess of things.
Once we deal with device trees in some manner, then we can just fake
their existence at this point and pass in the console information from
ODMDATA.
- --
Tom
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next prev parent reply other threads:[~2012-12-17 21:09 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-12 23:23 [U-Boot] [PATCH] ns16550: allow UART address to be set dynamically Stephen Warren
2012-12-12 23:38 ` Simon Glass
2012-12-12 23:52 ` Stephen Warren
2012-12-13 0:38 ` Simon Glass
2012-12-13 10:29 ` Wolfgang Denk
2012-12-13 18:17 ` Stephen Warren
2012-12-13 20:36 ` Wolfgang Denk
2012-12-13 20:45 ` Stephen Warren
2012-12-13 20:53 ` Tom Rini
2012-12-13 21:07 ` Stephen Warren
2012-12-13 21:51 ` Simon Glass
2012-12-14 20:40 ` Tom Rini
2012-12-14 21:14 ` Simon Glass
2012-12-14 22:03 ` Stephen Warren
2012-12-14 22:22 ` Simon Glass
2012-12-14 22:45 ` Stephen Warren
2012-12-17 21:09 ` Tom Rini [this message]
2012-12-17 22:24 ` Stephen Warren
2012-12-17 22:37 ` Wolfgang Denk
2012-12-17 22:58 ` Stephen Warren
2012-12-18 6:39 ` Wolfgang Denk
2012-12-18 16:37 ` Stephen Warren
2012-12-18 19:15 ` Simon Glass
2012-12-17 21:09 ` Tom Rini
2012-12-14 22:35 ` Wolfgang Denk
2012-12-14 21:52 ` Stephen Warren
2012-12-14 22:31 ` Wolfgang Denk
2012-12-14 22:26 ` Wolfgang Denk
2012-12-14 23:16 ` Graeme Russ
2012-12-15 0:32 ` Wolfgang Denk
2012-12-15 1:32 ` Graeme Russ
2012-12-15 7:30 ` Wolfgang Denk
2012-12-15 9:53 ` Graeme Russ
2012-12-17 21:04 ` Tom Rini
2012-12-13 23:11 ` Wolfgang Denk
2012-12-13 23:26 ` Stephen Warren
2012-12-13 10:27 ` Wolfgang Denk
2012-12-13 13:11 ` Tom Rini
2012-12-13 14:22 ` Wolfgang Denk
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