103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
/*
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* Copyright (c) 2020, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef EMI_MPU_H
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#define EMI_MPU_H
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#include <platform_def.h>
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#define EMI_MPUP (EMI_BASE + 0x01D8)
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#define EMI_MPUQ (EMI_BASE + 0x01E0)
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#define EMI_MPUR (EMI_BASE + 0x01E8)
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#define EMI_MPUS (EMI_BASE + 0x01F0)
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#define EMI_MPUT (EMI_BASE + 0x01F8)
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#define EMI_MPUY (EMI_BASE + 0x0220)
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#define EMI_MPU_CTRL (EMI_MPU_BASE + 0x0000)
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#define EMI_MPUD0_ST (EMI_BASE + 0x0160)
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#define EMI_MPUD1_ST (EMI_BASE + 0x0164)
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#define EMI_MPUD2_ST (EMI_BASE + 0x0168)
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#define EMI_MPUD3_ST (EMI_BASE + 0x016C)
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#define EMI_MPUD0_ST2 (EMI_BASE + 0x0200)
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#define EMI_MPUD1_ST2 (EMI_BASE + 0x0204)
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#define EMI_MPUD2_ST2 (EMI_BASE + 0x0208)
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#define EMI_MPUD3_ST2 (EMI_BASE + 0x020C)
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#define EMI_PHY_OFFSET (0x40000000UL)
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#define NO_PROT (0)
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#define SEC_RW (1)
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#define SEC_RW_NSEC_R (2)
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#define SEC_RW_NSEC_W (3)
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#define SEC_R_NSEC_R (4)
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#define FORBIDDEN (5)
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#define SEC_R_NSEC_RW (6)
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#define SECURE_OS_MPU_REGION_ID (0)
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#define ATF_MPU_REGION_ID (1)
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#define EMI_MPU_SA0 (EMI_MPU_BASE + 0x100)
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#define EMI_MPU_EA0 (EMI_MPU_BASE + 0x200)
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#define EMI_MPU_SA(region) (EMI_MPU_SA0 + (region) * 4)
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#define EMI_MPU_EA(region) (EMI_MPU_EA0 + (region) * 4)
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#define EMI_MPU_APC0 (EMI_MPU_BASE + 0x300)
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#define EMI_MPU_APC(region, dgroup) (EMI_MPU_APC0 + (region) * 4 + \
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(dgroup) * 0x100)
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#define EMI_MPU_CTRL_D0 (EMI_MPU_BASE + 0x800)
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#define EMI_MPU_CTRL_D(domain) (EMI_MPU_CTRL_D0 + domain * 4)
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#define EMI_RG_MASK_D0 (EMI_MPU_BASE + 0x900)
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#define EMI_RG_MASK_D(domain) (EMI_RG_MASK_D0 + domain * 4)
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#define EMI_MPU_DOMAIN_NUM 16
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#define EMI_MPU_REGION_NUM 32
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#define EMI_MPU_ALIGN_BITS 16
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#define DRAM_OFFSET (0x40000000 >> EMI_MPU_ALIGN_BITS)
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#define EMI_MPU_DGROUP_NUM (EMI_MPU_DOMAIN_NUM / 8)
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#if (EMI_MPU_DGROUP_NUM == 1)
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#define SET_ACCESS_PERMISSION(apc_ary, lock, d7, d6, d5, d4, d3, d2, d1, d0) \
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do { \
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apc_ary[0] = 0; \
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apc_ary[0] = \
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(((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) \
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| (((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) \
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| (((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) \
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| (((unsigned int) d1) << 3) | ((unsigned int) d0) \
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| (((unsigned int) lock) << 31); \
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} while (0)
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#elif (EMI_MPU_DGROUP_NUM == 2)
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#define SET_ACCESS_PERMISSION(apc_ary, lock, d15, d14, d13, d12, d11, d10, \
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d9, d8, d7, d6, d5, d4, d3, d2, d1, d0) \
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do { \
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apc_ary[1] = \
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(((unsigned int) d15) << 21) | (((unsigned int) d14) << 18) \
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| (((unsigned int) d13) << 15) | (((unsigned int) d12) << 12) \
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| (((unsigned int) d11) << 9) | (((unsigned int) d10) << 6) \
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| (((unsigned int) d9) << 3) | ((unsigned int) d8); \
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apc_ary[0] = \
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(((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) \
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| (((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) \
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| (((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) \
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| (((unsigned int) d1) << 3) | ((unsigned int) d0) \
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| (((unsigned int) lock) << 31); \
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} while (0)
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#endif
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struct emi_region_info_t {
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unsigned long long start;
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unsigned long long end;
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unsigned int region;
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unsigned long apc[EMI_MPU_DGROUP_NUM];
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};
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void emi_mpu_init(void);
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int emi_mpu_set_protection(struct emi_region_info_t *region_info);
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void dump_emi_mpu_regions(void);
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#endif /* __EMI_MPU_H */
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