Re: [U-Boot] [PATCH 4/4] ARM: tegra210: gpu: configure WPR region

2015-11-09 Thread Thierry Reding
On Mon, Nov 09, 2015 at 08:19:48AM -0700, Stephen Warren wrote: > On 11/09/2015 07:36 AM, Thierry Reding wrote: > >On Wed, Oct 28, 2015 at 11:59:04AM -0600, Stephen Warren wrote: > >>On 10/18/2015 10:57 PM, Alexandre Courbot wrote: > >>>T210's GPU secure firmware loading requires a write-protected

Re: [U-Boot] [PATCH 4/4] ARM: tegra210: gpu: configure WPR region

2015-11-09 Thread Stephen Warren
On 11/09/2015 08:48 AM, Thierry Reding wrote: On Mon, Nov 09, 2015 at 08:19:48AM -0700, Stephen Warren wrote: On 11/09/2015 07:36 AM, Thierry Reding wrote: On Wed, Oct 28, 2015 at 11:59:04AM -0600, Stephen Warren wrote: On 10/18/2015 10:57 PM, Alexandre Courbot wrote: T210's GPU secure firmwa

Re: [U-Boot] [PATCH 4/4] ARM: tegra210: gpu: configure WPR region

2015-11-09 Thread Stephen Warren
On 11/09/2015 07:36 AM, Thierry Reding wrote: On Wed, Oct 28, 2015 at 11:59:04AM -0600, Stephen Warren wrote: On 10/18/2015 10:57 PM, Alexandre Courbot wrote: T210's GPU secure firmware loading requires a write-protected region to be set up. This patch reserves the upper 256KB of RAM as the WP

Re: [U-Boot] [PATCH 4/4] ARM: tegra210: gpu: configure WPR region

2015-11-09 Thread Thierry Reding
On Wed, Oct 28, 2015 at 11:59:04AM -0600, Stephen Warren wrote: > On 10/18/2015 10:57 PM, Alexandre Courbot wrote: > >T210's GPU secure firmware loading requires a write-protected region > >to be set up. > > > >This patch reserves the upper 256KB of RAM as the WPR region and locks > >it so the kern

Re: [U-Boot] [PATCH 4/4] ARM: tegra210: gpu: configure WPR region

2015-10-28 Thread Stephen Warren
On 10/28/2015 05:55 PM, Alexandre Courbot wrote: > On 10/29/2015 02:59 AM, Stephen Warren wrote: >> On 10/18/2015 10:57 PM, Alexandre Courbot wrote: >>> T210's GPU secure firmware loading requires a write-protected region >>> to be set up. >>> >>> This patch reserves the upper 256KB of RAM as the W

Re: [U-Boot] [PATCH 4/4] ARM: tegra210: gpu: configure WPR region

2015-10-28 Thread Alexandre Courbot
On 10/29/2015 02:59 AM, Stephen Warren wrote: On 10/18/2015 10:57 PM, Alexandre Courbot wrote: T210's GPU secure firmware loading requires a write-protected region to be set up. This patch reserves the upper 256KB of RAM as the WPR region and locks it so the kernel can initiate secure firmware

Re: [U-Boot] [PATCH 4/4] ARM: tegra210: gpu: configure WPR region

2015-10-28 Thread Stephen Warren
On 10/18/2015 10:57 PM, Alexandre Courbot wrote: T210's GPU secure firmware loading requires a write-protected region to be set up. This patch reserves the upper 256KB of RAM as the WPR region and locks it so the kernel can initiate secure firmware loading. On T210, it's the responsibility of

[U-Boot] [PATCH 4/4] ARM: tegra210: gpu: configure WPR region

2015-10-18 Thread Alexandre Courbot
T210's GPU secure firmware loading requires a write-protected region to be set up. This patch reserves the upper 256KB of RAM as the WPR region and locks it so the kernel can initiate secure firmware loading. Signed-off-by: Alexandre Courbot --- arch/arm/include/asm/arch-tegra210/mc.h | 12