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From: Paul Walmsley <paul@pwsan.com>
To: Tony Lindgren <tony@atomide.com>
Cc: "Mohammed, Afzal" <afzal@ti.com>,
	"R, Govindraj" <govindraj.raja@ti.com>,
	khilman@ti.com,
	"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>
Subject: Re: OMAP3EVM not booting on l-o master
Date: Fri, 6 Apr 2012 12:08:32 -0600 (MDT)	[thread overview]
Message-ID: <alpine.DEB.2.00.1204061159100.11100@utopia.booyaka.com> (raw)
In-Reply-To: <20120406174129.GA15734@atomide.com>

cc Kevin

On Fri, 6 Apr 2012, Tony Lindgren wrote:

> So something in Paul's series is changing the interrupt
> behaviour somehow?

Am wondering if this might be due to the kernel not clearing some 
bootloader mux settings?

Perhaps the bootloader is configuring the mux hardware for I/O wakeups on 
a pad, but the kernel is missing an mux IRQ handler or mapping for it. Or 
maybe one of the kernel mux entries is missing the OMAP_WAKEUP_EN or 
OMAP_DEVICE_PAD_WAKEUP flags for a pad that the bootloader is configuring 
- I seem to recall that Kevin found some problems here with the 
mach-omap2/serial.c mux code.  Anyway, will create a patch to add some 
debugging here for Afzal to try.

Also,it seems to me that when the mux layer starts, the code should 
probably clear out all of the I/O wakeup configuration in the hardware 
that the bootloader set up.


- Paul

  reply	other threads:[~2012-04-06 18:08 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-04  5:36 OMAP3EVM not booting on l-o master Mohammed, Afzal
2012-04-04  9:11 ` Mohammed, Afzal
2012-04-05  9:33   ` Paul Walmsley
2012-04-05 10:07     ` Paul Walmsley
2012-04-05 16:22       ` Mohammed, Afzal
2012-04-05 19:52         ` Paul Walmsley
2012-04-06  5:09           ` Mohammed, Afzal
2012-04-06  7:13             ` Paul Walmsley
2012-04-06  7:52               ` Mohammed, Afzal
2012-04-23  9:24                 ` Tero Kristo
2012-04-23 10:07                   ` Mohammed, Afzal
2012-04-23 10:13                     ` Tero Kristo
2012-04-23 10:43                       ` Mohammed, Afzal
2012-04-23 11:59                         ` Tero Kristo
2012-04-24 12:00                           ` Mohammed, Afzal
2012-04-24 12:23                             ` Tero Kristo
2012-04-24 17:07                   ` Kevin Hilman
2012-04-27 13:16                     ` Tero Kristo
2012-04-27 23:15                       ` Kevin Hilman
2012-04-28 11:51                         ` Mohammed, Afzal
2012-04-30 12:46                         ` Tero Kristo
2012-04-30 20:40                           ` Kevin Hilman
2012-05-01 12:55                             ` Mohammed, Afzal
2012-05-01 14:08                               ` Kevin Hilman
2012-05-02  5:48                                 ` Mohammed, Afzal
2012-05-02  8:39                                   ` Tero Kristo
2012-05-02  8:45                             ` Paul Walmsley
2012-05-02 14:27                               ` Kevin Hilman
2012-05-11 22:39                                 ` Paul Walmsley
2012-04-05 21:21       ` Kevin Hilman
2012-04-05 10:11     ` Mohammed, Afzal
2012-04-05 10:17       ` Paul Walmsley
2012-04-05 10:23         ` Raja, Govindraj
2012-04-05 16:19           ` Mohammed, Afzal
2012-04-05 17:16             ` Tony Lindgren
2012-04-06  4:54               ` Mohammed, Afzal
2012-04-06 17:41                 ` Tony Lindgren
2012-04-06 18:08                   ` Paul Walmsley [this message]
2012-04-06 18:24                     ` Tony Lindgren

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