[U-Boot] [PATCH] Tegra: Allow TZ writes to VPR aperature regs

[Tom Warren]

Stephen,

> -----Original Message-----
> From: Stephen Warren [mailto:swarren at wwwdotorg.org]
> Sent: Wednesday, August 05, 2015 12:52 PM
> To: Tom Warren
> Cc: u-boot at lists.denx.de; Thierry Reding; Stephen Warren;
> tomcwarren3959 at gmail.com
> Subject: Re: [U-Boot] [PATCH] Tegra: Allow TZ writes to VPR aperature regs
> 
> On 07/29/2015 10:24 AM, Tom Warren wrote:
> > VPR (Video Protect Region) may be reconfigured from secure code in the
> > kernel/OS. Set the ALLOW_TZ_WRITE_ACCESS bit in REG_CTRL to allow
> > this. Also used common CONFIG option (CONFIG_LOCK_VPR) in T124/T210
> > builds to enable VPR setup.
> 
> Acked-by: Stephen Warren <swarren at nvidia.com>
> 
> I haven't investigated this much, but it seems fine.
Thanks, but I'm dropping this patch. I've added Alex's 2 GPU/VPR patches, so this isn't needed (and enabling TZ writes is only done for dynamic VPR, which I've learned isn't needed/used).

Tom
--
nvpublic