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arm: mpu: nxp: set bus master 4 to write and read access

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Set bus master 4 to write and read access which allows
the USBFSOTG controller read/write access to the memory.

Signed-off-by: Johann Fischer <j.fischer@phytec.de>
This commit is contained in:
Johann Fischer 2017-10-20 01:10:16 +02:00 committed by Maureen Helm
parent d8cd119562
commit 167efd70b6
1 changed files with 13 additions and 2 deletions
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15
include/arch/arm/cortex_m/mpu/nxp_mpu.h
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@ -34,6 +34,15 @@
#define BM2_SM_SHIFT 15
#define BM3_SM_SHIFT 21
#define BM4_WE_SHIFT 24
#define BM4_RE_SHIFT 25
#ifdef CONFIG_USB_KINETIS
#define BM4_PERMISSIONS ((1 << BM4_RE_SHIFT) | (1 << BM4_WE_SHIFT))
#else
#define BM4_PERMISSIONS 0
#endif
/* Read Attribute */
#define MPU_REGION_READ ((UM_READ << BM0_UM_SHIFT) | \
(UM_READ << BM1_UM_SHIFT) | \
@ -83,13 +92,15 @@
/* Some helper defines for common regions */
#if defined(CONFIG_MPU_ALLOW_FLASH_WRITE)
#define REGION_RAM_ATTR ((MPU_REGION_SU_RWX) | \
((UM_READ | UM_WRITE | UM_EXEC) << BM3_UM_SHIFT))
((UM_READ | UM_WRITE | UM_EXEC) << BM3_UM_SHIFT) | \
(BM4_PERMISSIONS))
#define REGION_FLASH_ATTR (MPU_REGION_SU_RWX)
#else
#define REGION_RAM_ATTR ((MPU_REGION_SU_RW) | \
((UM_READ | UM_WRITE) << BM3_UM_SHIFT))
((UM_READ | UM_WRITE) << BM3_UM_SHIFT) | \
(BM4_PERMISSIONS))
#define REGION_FLASH_ATTR (MPU_REGION_READ | \
MPU_REGION_EXEC | \