diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2015-01-23 14:13:23 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-04-14 12:07:39 +0200 |
| commit | 47f18d46e0872c51b5f732b1de07eb8d43481d02 (patch) | |
| tree | f993fb39fc217eaf4ead0c5e5a3dabc12e55f331 /src/soc/nvidia | |
| parent | fa14385ac5ae265269e328100d13ac4400e21e0c (diff) | |
| download | coreboot-47f18d46e0872c51b5f732b1de07eb8d43481d02.tar.xz | |
tegra132: lock down VPR
The GPU MMU won't function properly until it sees the VPR
is locked down. Therefore, do the appropriate work.
BUG=None
BRANCH=None
TEST=Built.
Change-Id: I6011c75c1e6c231f2fa416e0057cb5805a88a2bb
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: ca9cc9917b98a148442468d1d1541a0408ab6c2c
Original-Change-Id: I3601f419b561cee392391577ef8db66b9fbd8c1b
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/242910
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-by: Tom Warren <twarren@nvidia.com>
Reviewed-on: http://review.coreboot.org/9660
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/soc/nvidia')
| -rw-r--r-- | src/soc/nvidia/tegra132/soc.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/soc/nvidia/tegra132/soc.c b/src/soc/nvidia/tegra132/soc.c index a77ffbbff4..476dec7a03 100644 --- a/src/soc/nvidia/tegra132/soc.c +++ b/src/soc/nvidia/tegra132/soc.c @@ -30,6 +30,7 @@ #include <soc/addressmap.h> #include <soc/clock.h> #include <soc/cpu.h> +#include <soc/mc.h> #include <soc/nvidia/tegra/apbmisc.h> #include <string.h> #include <timer.h> @@ -77,6 +78,16 @@ static struct cpu_control_ops cntrl_ops = { .start_cpu = cntrl_start_cpu, }; + +static void lock_down_vpr(void) +{ + struct tegra_mc_regs *regs = (void *)(uintptr_t)TEGRA_MC_BASE; + + write32(0, ®s->video_protect_bom); + write32(0, ®s->video_protect_size_mb); + write32(1, ®s->video_protect_reg_ctrl); +} + static void soc_init(device_t dev) { struct soc_nvidia_tegra132_config *cfg; @@ -87,6 +98,9 @@ static void soc_init(device_t dev) spintable_init((void *)cfg->spintable_addr); arch_initialize_cpus(dev, &cntrl_ops); + /* Lock down VPR */ + lock_down_vpr(); + #if IS_ENABLED(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT) if (vboot_skip_display_init()) printk(BIOS_INFO, "Skipping display init.\n"); |