diff options
Diffstat (limited to 'src/soc/nvidia/tegra132/soc.c')
| -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"); |