mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-18 18:06:40 +00:00
40 lines
1.6 KiB
C
40 lines
1.6 KiB
C
/*
|
|
* Copyright (c) 2018-2019 Atmosphère-NX
|
|
*
|
|
* 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 <stdint.h>
|
|
|
|
#include "mc.h"
|
|
#include "utils.h"
|
|
|
|
void disable_bpmp_access_to_dram(void) {
|
|
/* Modify carveout 4 to prevent BPMP access to dram (TZ will fix it). */
|
|
volatile security_carveout_t *carveout = (volatile security_carveout_t *)(MC_BASE + 0xC08 + 0x50 * (4 - CARVEOUT_ID_MIN));
|
|
carveout->paddr_low = 0;
|
|
carveout->paddr_high = 0;
|
|
carveout->size_big_pages = 1; /* 128 KiB */
|
|
carveout->client_access_0 = 0;
|
|
carveout->client_access_1 = 0;
|
|
carveout->client_access_2 = 0;
|
|
carveout->client_access_3 = 0;
|
|
carveout->client_access_4 = 0;
|
|
carveout->client_force_internal_access_0 = BIT(CSR_AVPCARM7R);
|
|
carveout->client_force_internal_access_1 = BIT(CSW_AVPCARM7W);
|
|
carveout->client_force_internal_access_2 = 0;
|
|
carveout->client_force_internal_access_3 = 0;
|
|
carveout->client_force_internal_access_4 = 0;
|
|
/* Set config to LOCKED, TZ-SECURE, untranslated addresses only. */
|
|
carveout->config = 0x8F;
|
|
}
|