35 lines
777 B
C
35 lines
777 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2019 MediaTek Inc.
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*/
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#include <linux/module.h> /* needed by all modules */
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#include <soc/mediatek/emi.h>
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#define MPU_REGION_ID_SSPM 5
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#define MPU_DOMAIN_D0_AP 0
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#define MPU_DOMAIN_D8_SSPM 8
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void sspm_set_emi_mpu(phys_addr_t base, phys_addr_t size)
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{
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struct emimpu_region_t rg_info;
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int ret;
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ret = mtk_emimpu_init_region(&rg_info, MPU_REGION_ID_SSPM);
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if (ret) {
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pr_info("[SSPM] set emimpu fail\n");
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return;
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}
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mtk_emimpu_set_addr(&rg_info, base, base + size - 1);
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mtk_emimpu_set_apc(&rg_info, MPU_DOMAIN_D0_AP,
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MTK_EMIMPU_NO_PROTECTION);
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mtk_emimpu_set_apc(&rg_info, MPU_DOMAIN_D8_SSPM,
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MTK_EMIMPU_NO_PROTECTION);
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mtk_emimpu_set_protection(&rg_info);
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mtk_emimpu_free_region(&rg_info);
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}
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