[U-Boot] [PATCH] Nokia RX-51: Do not call secure PPA routine on non secure devices

[Pali Rohár]

Yes, and it is working (linux kernel was booted without problem).

On Thursday 08 January 2015 22:53:18 Georges Savoundararadj 
wrote:
> Hi Pali Rohár,
> 
> Have you tested this patch on a secure device (as the nokia
> n900)?
> 
> Regards,
> 
> Georges
> 
> Le 08/01/2015 10:11, Pali Rohár a écrit :
> > Since commit 41623c91b09a0c865fab41acdaff30f060f29ad6 u-boot
> > running in qemu is crashing in function
> > do_omap3_emu_romcode_call(). RX-51 board uses this function
> > for Cortex-A8 errata 430973 workaround (Set IBE bit in ACR)
> > which is needed only on real secure device and not in qemu.
> > 
> > This board patch just disable calling secure PPA routine on
> > non secure devices. Qemu implements GP device and with this
> > patch u-boot is working in qemu again.
> > 
> > Signed-off-by: Pali Rohár <pali.rohar at gmail.com>
> > ---
> > 
> >   board/nokia/rx51/rx51.c |    6 +++++-
> >   1 file changed, 5 insertions(+), 1 deletion(-)
> > 
> > diff --git a/board/nokia/rx51/rx51.c
> > b/board/nokia/rx51/rx51.c index b6b8ad6..08fcaf2 100644
> > --- a/board/nokia/rx51/rx51.c
> > +++ b/board/nokia/rx51/rx51.c
> > @@ -422,8 +422,12 @@ int misc_init_r(void)
> > 
> >   	/*
> >   	
> >   	 * Cortex-A8(r1p0..r1p2) errata 430973 workaround
> >   	 * Set IBE bit in Auxiliary Control Register
> > 
> > +	 *
> > +	 * Call this routine only on real secure device
> > +	 * Qemu does not implement secure PPA and crash
> > 
> >   	 */
> > 
> > -	omap3_update_aux_cr_secure_rx51(1 << 6, 0);
> > +	if (get_device_type() == HS_DEVICE)
> > +		omap3_update_aux_cr_secure_rx51(1 << 6, 0);
> > 
> >   	return 0;
> >   
> >   }

-- 
Pali Rohár
pali.rohar at gmail.com
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