]> git.sur5r.net Git - u-boot/commit
ARM: tegra: Disable VPR
authorBryan Wu <pengw@nvidia.com>
Tue, 24 Jun 2014 02:45:29 +0000 (11:45 +0900)
committerTom Warren <twarren@nvidia.com>
Mon, 18 Aug 2014 23:57:02 +0000 (16:57 -0700)
commitdf3443dfa449ad02bef8ddf6e2c90a6fd9394fc9
tree208df055da17bf359f611abf18def134fb2c9a7b
parent1899fac925eda817e12234aef3d01d354788662e
ARM: tegra: Disable VPR

On Tegra114 and Tegra124 platforms, certain display-related registers cannot
be accessed unless the VPR registers are programmed.  For bootloader, we
probably don't care about VPR, so we disable it (which counts as programming
it, and allows those display-related registers to be accessed).

This patch is based on the commit 5f499646c83ba08079f3fdff6591f638a0ce4c0c
in Chromium OS U-Boot project.

Signed-off-by: Andrew Chew <achew@nvidia.com>
Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com>
Signed-off-by: Bryan Wu <pengw@nvidia.com>
[acourbot: ensure write went through, vpr.c style changes]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Cc: Tom Warren <TWarren@nvidia.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
arch/arm/cpu/tegra-common/Makefile
arch/arm/cpu/tegra-common/ap.c
arch/arm/cpu/tegra-common/vpr.c [new file with mode: 0644]
arch/arm/include/asm/arch-tegra/ap.h
arch/arm/include/asm/arch-tegra124/mc.h [new file with mode: 0644]