[U-Boot] uboot nor xip support

[Amol Bhise]

Hi Graeme,
We are using  TI's 8148 EVM board, which is bit modified for NOR booting
and the uboot version is 'U-Boot 2010.06'. On board  flash is CFi
compliant  (16bit x 16bit) 64Mib. The flash works all fine when we boot
from RAM as normal.

Regards
Amol

On Wed, Aug 8, 2012 at 2:36 AM, Graeme Russ <graeme.russ at gmail.com> wrote:

> Hi Amol
>
> On Wed, Aug 8, 2012 at 12:57 PM, Amol Bhise <amolbhise3 at gmail.com> wrote:
> > Hi,
> > I need some help resolving system hang when booting from NOR flash (XIP
> > boot).
> >
> > On our system we have CFI NOR flash sitting at base 0x08000000. with
> > CONFIG_SYS_MONITOR_BASE and TEXT_BASE being set at the flash base address
> > in board config file.  But the system hangs when we actually try to boot
> > from flash.  earlier we verified that the flash works fine when booting
> > from RAM.
> >
> > with uboot code and env occupying first two sector in flash (0x08000000
> + 2
> > * 128KB), I think the hang could arise from the fact that Monitor stack,
> > Board info data and malloc arena growing downward and crossing flash
> > boundaries.  Our ROM bootcode is configured to jump at flash base so I
> > couldn't really write uboot code at some other offset in NOR flash.
>
> More info needed - specifically, what board and what version of U-Boot
>
>
>