Stephen,
-----Original Message----- From: Stephen Warren [mailto:swarren@wwwdotorg.org] Sent: Wednesday, August 05, 2015 12:52 PM To: Tom Warren Cc: u-boot@lists.denx.de; Thierry Reding; Stephen Warren; tomcwarren3959@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@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