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Diffstat (limited to '')
-rw-r--r-- | plat/mediatek/mt8186/drivers/emi_mpu/emi_mpu.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/plat/mediatek/mt8186/drivers/emi_mpu/emi_mpu.h b/plat/mediatek/mt8186/drivers/emi_mpu/emi_mpu.h new file mode 100644 index 0000000..415146e --- /dev/null +++ b/plat/mediatek/mt8186/drivers/emi_mpu/emi_mpu.h @@ -0,0 +1,98 @@ +/* + * Copyright (c) 2021, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef EMI_MPU_H +#define EMI_MPU_H + +#include <platform_def.h> + +#define ENABLE_EMI_MPU_SW_LOCK 1 + +#define EMI_MPU_CTRL (EMI_MPU_BASE + 0x000) +#define EMI_MPU_DBG (EMI_MPU_BASE + 0x004) +#define EMI_MPU_SA0 (EMI_MPU_BASE + 0x100) +#define EMI_MPU_EA0 (EMI_MPU_BASE + 0x200) +#define EMI_MPU_SA(region) (EMI_MPU_SA0 + (region * 4)) +#define EMI_MPU_EA(region) (EMI_MPU_EA0 + (region * 4)) +#define EMI_MPU_APC0 (EMI_MPU_BASE + 0x300) +#define EMI_MPU_APC(region, dgroup) (EMI_MPU_APC0 + (region * 4) + (dgroup * 0x100)) +#define EMI_MPU_CTRL_D0 (EMI_MPU_BASE + 0x800) +#define EMI_MPU_CTRL_D(domain) (EMI_MPU_CTRL_D0 + (domain * 4)) +#define EMI_RG_MASK_D0 (EMI_MPU_BASE + 0x900) +#define EMI_RG_MASK_D(domain) (EMI_RG_MASK_D0 + (domain * 4)) +#define EMI_MPU_START (0x000) +#define EMI_MPU_END (0x93C) + +#define SUB_EMI_MPU_CTRL (SUB_EMI_MPU_BASE + 0x000) +#define SUB_EMI_MPU_DBG (SUB_EMI_MPU_BASE + 0x004) +#define SUB_EMI_MPU_SA0 (SUB_EMI_MPU_BASE + 0x100) +#define SUB_EMI_MPU_EA0 (SUB_EMI_MPU_BASE + 0x200) +#define SUB_EMI_MPU_SA(region) (SUB_EMI_MPU_SA0 + (region * 4)) +#define SUB_EMI_MPU_EA(region) (SUB_EMI_MPU_EA0 + (region * 4)) +#define SUB_EMI_MPU_APC0 (SUB_EMI_MPU_BASE + 0x300) +#define SUB_EMI_MPU_APC(region, dgroup) (SUB_EMI_MPU_APC0 + (region * 4) + (dgroup * 0x100)) +#define SUB_EMI_MPU_CTRL_D0 (SUB_EMI_MPU_BASE + 0x800) +#define SUB_EMI_MPU_CTRL_D(domain) (SUB_EMI_MPU_CTRL_D0 + (domain * 4)) +#define SUB_EMI_RG_MASK_D0 (SUB_EMI_MPU_BASE + 0x900) +#define SUB_EMI_RG_MASK_D(domain) (SUB_EMI_RG_MASK_D0 + (domain * 4)) + +#define EMI_MPU_DOMAIN_NUM (16) +#define EMI_MPU_REGION_NUM (32) +#define EMI_MPU_ALIGN_BITS (16) +#define DRAM_OFFSET (0x40000000 >> EMI_MPU_ALIGN_BITS) + +#define NO_PROTECTION 0 +#define SEC_RW 1 +#define SEC_RW_NSEC_R 2 +#define SEC_RW_NSEC_W 3 +#define SEC_R_NSEC_R 4 +#define FORBIDDEN 5 +#define SEC_R_NSEC_RW 6 + +#define LOCK 1 +#define UNLOCK 0 + +#define EMI_MPU_DGROUP_NUM (EMI_MPU_DOMAIN_NUM / 8) + +#if (EMI_MPU_DGROUP_NUM == 1) +#define SET_ACCESS_PERMISSION(apc_ary, lock, d7, d6, d5, d4, d3, d2, d1, d0) \ +do { \ + apc_ary[1] = 0; \ + apc_ary[0] = \ + (((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) | \ + (((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) | \ + (((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) | \ + (((unsigned int) d1) << 3) | ((unsigned int) d0) | \ + ((unsigned int) lock << 31); \ +} while (0) +#elif (EMI_MPU_DGROUP_NUM == 2) +#define SET_ACCESS_PERMISSION(apc_ary, lock, d15, d14, d13, d12, d11, d10, \ + d9, d8, d7, d6, d5, d4, d3, d2, d1, d0) \ +do { \ + apc_ary[1] = \ + (((unsigned int) d15) << 21) | (((unsigned int) d14) << 18) | \ + (((unsigned int) d13) << 15) | (((unsigned int) d12) << 12) | \ + (((unsigned int) d11) << 9) | (((unsigned int) d10) << 6) | \ + (((unsigned int) d9) << 3) | ((unsigned int) d8); \ + apc_ary[0] = \ + (((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) | \ + (((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) | \ + (((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) | \ + (((unsigned int) d1) << 3) | ((unsigned int) d0) | \ + ((unsigned int) lock << 31); \ +} while (0) +#endif + +struct emi_region_info_t { + unsigned long long start; + unsigned long long end; + unsigned int region; + unsigned int apc[EMI_MPU_DGROUP_NUM]; +}; + +void emi_mpu_init(void); + +#endif |