mirror of
https://github.com/suchmememanyskill/TegraExplorer.git
synced 2024-11-29 23:32:06 +00:00
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2020 CTCaer
|
||
|
|
*
|
||
|
|
* 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/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <soc/pmc.h>
|
||
|
|
#include <soc/t210.h>
|
||
|
|
#include <utils/util.h>
|
||
|
|
|
||
|
|
int pmc_enable_partition(u32 part, int enable)
|
||
|
|
{
|
||
|
|
u32 part_mask = BIT(part);
|
||
|
|
u32 desired_state = enable << part;
|
||
|
|
|
||
|
|
// Check if the partition has the state we want.
|
||
|
|
if ((PMC(APBDEV_PMC_PWRGATE_STATUS) & part_mask) == desired_state)
|
||
|
|
return 1;
|
||
|
|
|
||
|
|
u32 i = 5001;
|
||
|
|
while (PMC(APBDEV_PMC_PWRGATE_TOGGLE) & 0x100)
|
||
|
|
{
|
||
|
|
usleep(1);
|
||
|
|
i--;
|
||
|
|
if (i < 1)
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Toggle power gating.
|
||
|
|
PMC(APBDEV_PMC_PWRGATE_TOGGLE) = part | 0x100;
|
||
|
|
|
||
|
|
i = 5001;
|
||
|
|
while (i > 0)
|
||
|
|
{
|
||
|
|
if ((PMC(APBDEV_PMC_PWRGATE_STATUS) & part_mask) == desired_state)
|
||
|
|
break;
|
||
|
|
usleep(1);
|
||
|
|
i--;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|