mx28evk does not boot with linux-next 20130207

[Marek Vasut]

Dear Fabio Estevam,

> On Fri, Feb 8, 2013 at 2:48 PM, Will Deacon <will.deacon at arm.com> wrote:
> > From dc381a5dff9663901a61fe0dd86c986add382281 Mon Sep 17 00:00:00 2001
> > From: Will Deacon <will.deacon at arm.com>
> > Date: Fri, 8 Feb 2013 16:41:19 +0000
> > Subject: [PATCH] ARM: tlb: fix branch predictor maintenance for ARMv6
> > 
> > The BPIALL operation is not available on all CPUs, so ensure that we
> > only execute it on processors implementing the instruction.
> > 
> > Reported-by: Fabio Estevam <festevam at gmail.com>
> > Signed-off-by: Will Deacon <will.deacon at arm.com>
> 
> Thanks, Will.
> 
> This makes the kernel to boot again on my mx28evk, so:
> 
> Tested-by: Fabio Estevam <fabio.estevam at freescale.com>
> 
> There are still other issues, which seem to be unrelated to this fix
> though:
> 
> I can see the Linux logo and LED activity on my board, but no serial
> console.
> 
> Applying Shawn's patch:
> 
> diff --git a/arch/arm/boot/compressed/debug.S
> b/arch/arm/boot/compressed/debug.S
> index bdb0e25..6e8382d 100644
> --- a/arch/arm/boot/compressed/debug.S
> +++ b/arch/arm/boot/compressed/debug.S
> @@ -1,4 +1,5 @@
>  #include <linux/linkage.h>
> +#include <asm/assembler.h>
> 
>  #include CONFIG_DEBUG_LL_INCLUDE
> 
> and turning on earlyprintk I see kernel booting and it stops at:
> 
> [    5.311281] TCP: cubic registered
> [    5.315000] NET: Registered protocol family 17
> [    5.320843] Key type dns_resolver registered
> [    5.325750] turn off boot console earlycon0

Is the amba-pl011 driver maybe broken ?

So far, Wills' and Shawns' patches got me further too, thanks!

Best regards,
Marek Vasut