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

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

[Pali Rohár]

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 Roh?r <pali.rohar@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;
 }
-- 
1.7.9.5

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

[Pavel Machek]

On Thu 2015-01-08 10:11:40, Pali Roh?r wrote:
> 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 Roh?r <pali.rohar@gmail.com>

Acked-by: Pavel Machek <pavel@ucw.cz>

> ---
>  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;
>  }

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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

[Georges Savoundararadj]

Hi Pali Roh?r,

Have you tested this patch on a secure device (as the nokia n900)?

Regards,

Georges

Le 08/01/2015 10:11, Pali Roh?r a ?crit :
> 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 Roh?r <pali.rohar@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;
>   }

[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 Roh?r,
> 
> Have you tested this patch on a secure device (as the nokia
> n900)?
> 
> Regards,
> 
> Georges
> 
> Le 08/01/2015 10:11, Pali Roh?r a ?crit :
> > 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 Roh?r <pali.rohar@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 Roh?r
pali.rohar at gmail.com
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[U-Boot] Nokia RX-51: Do not call secure PPA routine on non secure devices

[Tom Rini]

On Thu, Jan 08, 2015 at 10:11:40AM +0100, Pali Roh?r wrote:

> 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 Roh?r <pali.rohar@gmail.com>
> Acked-by: Pavel Machek <pavel@ucw.cz>

Applied to u-boot/master, thanks!

-- 
Tom
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