| Bryan Wu | df3443d | 2014-06-24 11:45:29 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms and conditions of the GNU General Public License, |
| 6 | * version 2, as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 11 | * more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License |
| 14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 15 | */ |
| 16 | |
| 17 | /* Tegra vpr routines */ |
| 18 | |
| 19 | #include <common.h> |
| 20 | #include <asm/io.h> |
| 21 | #include <asm/arch/tegra.h> |
| 22 | #include <asm/arch/mc.h> |
| 23 | |
| 24 | /* Configures VPR. Right now, all we do is turn it off. */ |
| 25 | void config_vpr(void) |
| 26 | { |
| 27 | struct mc_ctlr *mc = (struct mc_ctlr *)NV_PA_MC_BASE; |
| 28 | |
| 29 | /* Turn VPR off */ |
| 30 | writel(0, &mc->mc_video_protect_size_mb); |
| 31 | writel(TEGRA_MC_VIDEO_PROTECT_REG_WRITE_ACCESS_DISABLED, |
| 32 | &mc->mc_video_protect_reg_ctrl); |
| 33 | /* read back to ensure the write went through */ |
| 34 | readl(&mc->mc_video_protect_reg_ctrl); |
| 35 | } |