On Fri, Mar 11, 2011 at 11:05:25AM +0530, DebBarma, Tarun Kanti wrote:
> [...]
> > > >
> > > > * Tarun Kanti DebBarma <tarun.kanti@xxxxxx> [110308 15:41]:
> > > > > switch-over to platform device driver through following changes:
> > > > > (a) initiate dmtimer early initialization from omap2_gp_timer_init()
> > > > > in timer-gp.c. This is equivalent of timer_init()->timer->init().
> > > > > (b) modify plat-omap/dmtimer routines to use new register map and
> > > > > platform data.
> > > >
> > > > This patch breaks booting for 2420 and makes boot hang early
> > > > on 2430. Note that to test with omap-for-linus branch you need
> > > > to disable the following in omap2plus_defconfig:
> > > >
> > > > CONFIG_ARCH_OMAP3
> > > > CONFIG_ARCH_OMAP4
> > > > CONFIG_CPU_32v6K
> > > I disabled above options on omap-for-linus *WITHOUT* my patch series.
> > > I am still seeing crash. Here is the log.
> > > I tried on two different setups. Not sure if I am missing something.
> >
> > Hmm sounds like H4 needs some attention. Can you try the following
> > completely untested patch?
>
> This works fine!
I tried to use below patch for booting OMAP2420 H4 on top of:
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git
Branch: omap-for-linus
commit 94a06b74e724caabcf0464c81527cfbcae0c8aff
Merge: 0dde52a 9062511
Author: Tony Lindgren <tony@xxxxxxxxxxx>
Merge branch 'for_2.6.39/pm-misc' of
ssh://master.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm
into omap-for-linus
Looks like it stops after uncompressing kernel. Same setup works fine
with tag v2.6.37.
OMAP242x H4 # boot
Using MAC Address 10:20:30:40:50:61
TFTP from server 10.24.244.97; our IP address is 10.24.244.196
Filename 'uImage'.
Load address: 0x80300000
Loading:
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#########################################################
done
Bytes transferred = 2950216 (2d0448 hex)
## Booting image at 80300000 ...
Image Name: Linux-2.6.38-rc8-00188-g94a06b7-
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2950152 Bytes = 2.8 MB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
OK
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
-Manjunath
> --
> Tarun
>
> >
> > Tony
> >
> > From: Tony Lindgren <tony@xxxxxxxxxxx>
> > Date: Thu, 10 Mar 2011 09:51:29 -0800
> > Subject: [PATCH] omap: Fix H4 init_irq to not call h4_init_flash
> >
> > There should be no reason to call h4_init_flash this
> > early. It causes problems as things are not yet initialized.
> >
> > Note: This patch has not been tested.
> >
> > Not-Yet-Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
> >
> > --- a/arch/arm/mach-omap2/board-h4.c
> > +++ b/arch/arm/mach-omap2/board-h4.c
> > @@ -299,7 +299,6 @@ static void __init omap_h4_init_early(void)
> > static void __init omap_h4_init_irq(void)
> > {
> > omap_init_irq();
> > - h4_init_flash();
> > }
> >
> > static struct at24_platform_data m24c01 = {
> > @@ -372,6 +371,7 @@ static void __init omap_h4_init(void)
> > platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
> > omap2_usbfs_init(&h4_usb_config);
> > omap_serial_init();
> > + h4_init_flash();
> > }
> >
> > static void __init omap_h4_map_io(void)
> --
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