70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2015 MediaTek Inc.
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*/
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#include <linux/module.h> /* needed by all modules */
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#include <mt-plat/sync_write.h>
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#ifdef CONFIG_MTK_EMI_LEGACY
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#include <mt_emi_api.h>
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#elif CONFIG_MTK_EMI
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#include <memory/mediatek/emi.h>
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#endif
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#ifdef CONFIG_MTK_EMI_LEGACY
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void sspm_set_emi_mpu(unsigned int id, phys_addr_t base, phys_addr_t size)
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{
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struct emi_region_info_t region_info;
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region_info.region = id;
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region_info.start = base;
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region_info.end = base + size - 1;
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SET_ACCESS_PERMISSION(region_info.apc, UNLOCK,
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FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
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FORBIDDEN, FORBIDDEN, FORBIDDEN, NO_PROTECTION,
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FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN,
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FORBIDDEN, FORBIDDEN, FORBIDDEN, NO_PROTECTION);
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pr_debug("[SSPM] MPU SSPM Share region<%d:%08llx:%08llx> %x, %x\n",
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region_info.region, region_info.start, region_info.end,
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region_info.apc[1], region_info.apc[0]);
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emi_mpu_set_protection(®ion_info);
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}
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#elif CONFIG_MTK_EMI
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struct emimpu_region_t sspm_rg_info;
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void sspm_set_emi_mpu(unsigned int id, phys_addr_t base, phys_addr_t size)
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{
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sspm_rg_info.rg_num = id;
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sspm_rg_info.start = base;
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sspm_rg_info.end = base + size - 1;
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}
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static int __init post_sspm_set_emi_mpu(void)
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{
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struct emimpu_region_t rg_info;
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int ret;
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mtk_emimpu_init_region(&rg_info, sspm_rg_info.rg_num);
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mtk_emimpu_set_addr(&rg_info, sspm_rg_info.start, sspm_rg_info.end);
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mtk_emimpu_set_apc(&rg_info, 0, MTK_EMIMPU_NO_PROTECTION);
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mtk_emimpu_set_apc(&rg_info, 8, MTK_EMIMPU_NO_PROTECTION);
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ret = mtk_emimpu_set_protection(&rg_info);
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pr_debug("[SSPM] MPU SSPM Share region <%d:%08llx:%08llx> %s\n",
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sspm_rg_info.rg_num, sspm_rg_info.start, sspm_rg_info.end,
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ret ? "fail" : "success");
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mtk_emimpu_free_region(&rg_info);
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return 0;
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}
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late_initcall(post_sspm_set_emi_mpu);
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#endif
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