mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-07 05:13:21 +09:00
36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
![]() |
/*
|
||
|
* Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
|
||
|
*
|
||
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
* under the terms and conditions of the GNU General Public License,
|
||
|
* version 2, as published by the Free Software Foundation.
|
||
|
*
|
||
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
||
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||
|
* more details.
|
||
|
*
|
||
|
* You should have received a copy of the GNU General Public License
|
||
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
*/
|
||
|
|
||
|
/* Tegra vpr routines */
|
||
|
|
||
|
#include <common.h>
|
||
|
#include <asm/io.h>
|
||
|
#include <asm/arch/tegra.h>
|
||
|
#include <asm/arch/mc.h>
|
||
|
|
||
|
/* Configures VPR. Right now, all we do is turn it off. */
|
||
|
void config_vpr(void)
|
||
|
{
|
||
|
struct mc_ctlr *mc = (struct mc_ctlr *)NV_PA_MC_BASE;
|
||
|
|
||
|
/* Turn VPR off */
|
||
|
writel(0, &mc->mc_video_protect_size_mb);
|
||
|
writel(TEGRA_MC_VIDEO_PROTECT_REG_WRITE_ACCESS_DISABLED,
|
||
|
&mc->mc_video_protect_reg_ctrl);
|
||
|
/* read back to ensure the write went through */
|
||
|
readl(&mc->mc_video_protect_reg_ctrl);
|
||
|
}
|