arno/trezor-firmware
1
0
Fork 0
mirror of https://github.com/trezor/trezor-firmware.git synced 2024-11-12 18:49:07 +00:00
Code Issues Releases Wiki Activity

setup: disable SYSCFG registers

Browse Source
This commit is contained in:
Pavol Rusnak 2018-08-24 17:06:05 +02:00
parent c82ce39ce5
commit fdd5cbe202
No known key found for this signature in database
GPG Key ID: 91F3B339B9A02A3D
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
setup.c
View File

@ -196,9 +196,13 @@ void mpu_config(void)
// Peripherals (0x50000000 - 0x5007ffff, read-write, execute never)
MPU_RBAR = 0x50000000 | MPU_RBAR_VALID | (6 << MPU_RBAR_REGION_LSB);
MPU_RASR = MPU_RASR_ENABLE | MPU_RASR_ATTR_PERIPH | MPU_RASR_SIZE_512KB | MPU_RASR_ATTR_AP_PRW_URW | MPU_RASR_ATTR_XN;
// SYSCFG_* registers are disabled
// (0x40013800 - 0x40013BFF, read-only, execute never)
MPU_RBAR = 0x40013800 | MPU_RBAR_VALID | (7 << MPU_RBAR_REGION_LSB);
MPU_RASR = MPU_RASR_ENABLE | MPU_RASR_ATTR_PERIPH | MPU_RASR_SIZE_1KB | MPU_RASR_ATTR_AP_PRO_URO | MPU_RASR_ATTR_XN;
// Enable MPU
MPU_CTRL = MPU_CTRL_ENABLE;
MPU_CTRL = MPU_CTRL_ENABLE | MPU_CTRL_HFNMIENA;
// Enable memory fault handler
SCB_SHCSR |= SCB_SHCSR_MEMFAULTENA;