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