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/*
* Copyright (C) 2017, STMicroelectronics - All Rights Reserved
* Author(s): Vikas Manocha, <vikas.manocha@st.com> for STMicroelectronics.
*
* SPDX-License-Identifier: GPL-2.0+
*/
enum region_number {
REGION_0 = 0,
REGION_1,
REGION_2,
REGION_3,
REGION_4,
REGION_5,
REGION_6,
REGION_7,
};
enum ap {
NO_ACCESS = 0,
PRIV_RW_USR_NO,
PRIV_RW_USR_RO,
PRIV_RW_USR_RW,
UNPREDICTABLE,
PRIV_RO_USR_NO,
PRIV_RO_USR_RO,
};
enum mr_attr {
STRONG_ORDER = 0,
SHARED_WRITE_BUFFERED,
O_I_WT_NO_WR_ALLOC,
O_I_WB_NO_WR_ALLOC,
O_I_NON_CACHEABLE,
O_I_WB_RD_WR_ALLOC,
DEVICE_NON_SHARED,
};
enum size {
REGION_8MB = 22,
REGION_16MB,
REGION_32MB,
REGION_64MB,
REGION_128MB,
REGION_256MB,
REGION_512MB,
REGION_1GB,
REGION_2GB,
REGION_4GB,
};
enum xn {
XN_DIS = 0,
XN_EN,
};
struct mpu_region_config {
uint32_t start_addr;
enum region_number region_no;
enum xn xn;
enum ap ap;
enum mr_attr mr_attr;
enum size reg_size;
};
void disable_mpu(void);
void enable_mpu(void);
void mpu_config(struct mpu_region_config *reg_config);
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