xref: /device/qemu/arm_virt/liteos_a/board/platform.c

/*
 * Copyright (c) 2020-2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "asm/platform.h"
#include "asm/io.h"
#include "soc/sys_ctrl.h"
#include "los_typedef.h"
#include "los_hwi.h"
#include "los_task_pri.h"
#include "los_spinlock.h"
#ifdef LOSCFG_DRIVERS_RANDOM
#include "soc/random.h"
#endif
#include "los_vm_map.h"
#include "los_vm_zone.h"
#include "los_vm_boot.h"
#include "los_mmu_descriptor_v6.h"

UINT32 OsRandomStackGuard(VOID)
{
#ifdef LOSCFG_DRIVERS_RANDOM
    UINT32 stackGuard = 0;

    HiRandomHwInit();
    (VOID)HiRandomHwGetInteger(&stackGuard);
    HiRandomHwDeinit();
    return stackGuard;
#else
    return 0;
#endif
}

void OsReboot(void)
{
    writel(0xffffffff, (SYS_CTRL_REG_BASE + REG_SC_SYSRES));
}

void InitRebootHook(void)
{
    OsSetRebootHook(OsReboot);
}

#ifdef LOSCFG_KERNEL_MMU
LosArchMmuInitMapping g_archMmuInitMapping[] = {
    {
        .phys = SYS_MEM_BASE,
        .virt = KERNEL_VMM_BASE,
        .size = KERNEL_VMM_SIZE,
        .flags = MMU_DESCRIPTOR_KERNEL_L1_PTE_FLAGS,
        .name = "KernelCached",
    },
    {
        .phys = SYS_MEM_BASE,
        .virt = UNCACHED_VMM_BASE,
        .size = UNCACHED_VMM_SIZE,
        .flags = MMU_INITIAL_MAP_NORMAL_NOCACHE,
        .name = "KernelUncached",
    },
    {
        .phys = PERIPH_PMM_BASE,
        .virt = PERIPH_DEVICE_BASE,
        .size = PERIPH_DEVICE_SIZE,
        .flags = MMU_INITIAL_MAP_DEVICE,
        .name = "PeriphDevice",
    },
    {
        .phys = PERIPH_PMM_BASE,
        .virt = PERIPH_CACHED_BASE,
        .size = PERIPH_CACHED_SIZE,
        .flags = MMU_DESCRIPTOR_KERNEL_L1_PTE_FLAGS,
        .name = "PeriphCached",
    },
    {
        .phys = PERIPH_PMM_BASE,
        .virt = PERIPH_UNCACHED_BASE,
        .size = PERIPH_UNCACHED_SIZE,
        .flags = MMU_INITIAL_MAP_STRONGLY_ORDERED,
        .name = "PeriphStronglyOrdered",
    },
    {0}
};
#endif