94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/*
|
|
* File : application.c
|
|
* COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that 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, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2017-11-14 Tanek porting from stm32f429-apollo
|
|
*/
|
|
|
|
#include <rthw.h>
|
|
#include <rtthread.h>
|
|
|
|
#include <LPC54608.h>
|
|
|
|
#define DEBUG
|
|
|
|
#ifdef DEBUG
|
|
#define MPU_PRINT(...) rt_kprintf(__VA_ARGS__)
|
|
#else
|
|
#define MPU_PRINT((...))
|
|
#endif
|
|
|
|
/* initialize for gui driver */
|
|
int rt_hw_mpu_init(void)
|
|
{
|
|
uint32_t rbar;
|
|
uint32_t rasr;
|
|
|
|
MPU_PRINT("\nnumber of regions: %d\n", (MPU->TYPE & MPU_TYPE_DREGION_Msk) >> MPU_TYPE_DREGION_Pos);
|
|
|
|
/* Disable MPU */
|
|
ARM_MPU_Disable();
|
|
|
|
/* - Region 0: 0x00000000 - 0x0007FFFF --- on-chip non-volatile memory
|
|
* + Size: 512kB
|
|
* + Acess permission: full access
|
|
*/
|
|
rbar = ARM_MPU_RBAR(0, 0x00000000);
|
|
rasr = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 0, 0, 0, 0, 0, ARM_MPU_REGION_SIZE_512KB);
|
|
ARM_MPU_SetRegion(rbar, rasr);
|
|
|
|
/* - Region 1:0x20000000 - 0x20027FFF --- on chip SRAM
|
|
* + Size: 160kB
|
|
* + Access permission: full access
|
|
*/
|
|
rbar = ARM_MPU_RBAR(1, 0x20000000);
|
|
rasr = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 0, 0, 0, 0, 0, ARM_MPU_REGION_SIZE_256KB);
|
|
ARM_MPU_SetRegion(rbar, rasr);
|
|
|
|
/* - Region 2: 0x40000000 - 0x43FFFFFF --- APB peripheral
|
|
* + Size: 64MB
|
|
* + Access permission: full access
|
|
*/
|
|
rbar = ARM_MPU_RBAR(2, 0x40000000);
|
|
rasr = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 0, 0, 0, 0, 0, ARM_MPU_REGION_SIZE_64MB);
|
|
ARM_MPU_SetRegion(rbar, rasr);
|
|
|
|
/* - Region 3: 0xA0000000 - 0xA0800000 --- External SDRAM
|
|
* + Size: 8MB
|
|
* + AP=b011: full access
|
|
*/
|
|
rbar = ARM_MPU_RBAR(3, 0xA0000000);
|
|
rasr = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 0, 0, 0, 0, 0, ARM_MPU_REGION_SIZE_8MB);
|
|
ARM_MPU_SetRegion(rbar, rasr);
|
|
|
|
/* - Region 4: 0xE0000000 - 0xE00FFFFF --- System control
|
|
* + Size: 1MB
|
|
* + Access permission: full access
|
|
*/
|
|
rbar = ARM_MPU_RBAR(4, 0xE0000000);
|
|
rasr = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 0, 0, 0, 0, 0, ARM_MPU_REGION_SIZE_1MB);
|
|
ARM_MPU_SetRegion(rbar, rasr);
|
|
|
|
ARM_MPU_Enable(MPU_CTRL_PRIVDEFENA_Msk);
|
|
|
|
return 0;
|
|
}
|
|
INIT_BOARD_EXPORT(rt_hw_mpu_init);
|
|
|