Thread (13 messages) 13 messages, 5 authors, 2012-09-04

Without MACH_ option Early printk (DEBUG_LL)

From: Mohammed, Afzal <hidden>
Date: 2012-09-03 04:27:14
Also in: linux-omap

Hi,

On Fri, Aug 31, 2012 at 23:53:32, Nicolas Pitre wrote:
On Fri, 31 Aug 2012, Hiremath, Vaibhav wrote:
quoted
On Fri, Aug 31, 2012 at 22:43:36, Russell King - ARM Linux wrote:
quoted
On Fri, Aug 31, 2012 at 08:24:51PM +0530, Vaibhav Hiremath wrote:
quoted
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AM335X EVM (based on AM33XX device) only supports DT boot mode and
doesn't have CONFIG_MACH_AM335XEVM option defined. Some time back during
baseport submission we had aligned that, we won't create separate EVM
options, killing the board file all-together.

Having said that, the early printk option (DEBUG_LL) is broken, the
auto-generated file "./include/generated/mach-types.h" still refers to
CONFIG_MACH_AM335XEVM option,
machine types are entirely meaningless for DT based systems.
quoted
Can you comment on this? Based on that I will submit the patch.
Pointless.  You can't use machine_is_am335xevm() when you're using DT.
They how do you recommend to resolve early prink issue (required during 
decompression)?
Right now the best you can do is to have empty stubs that display 
nothing.
Won't having compile time selection of debug uart over machine based
runtime detection help here ?

Regards
Afzal
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