/* Copyright 2018 Canaan Inc.
 *
 * 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.
 */

/**
* @file board.c
* @brief support maix-go-board init configure and start-up
* @version 1.0 
* @author AIIT XUOS Lab
* @date 2021-04-25
*/

/*************************************************
File name: board.c
Description: support maix-go-board init configure and driver/task/... init
Others: https://canaan-creative.com/developer
History: 
1. Date: 2021-04-25
Author: AIIT XUOS Lab
Modification: 
1. support maix-go-board InitBoardHardware
2. support maix-go-board Kd233Start
3. support maix-go-board shell cmd, include reboot, shutdown
*************************************************/

#include <xiuos.h>
#include <clint.h>
#include <sysctl.h>
#include "board.h"
#include "tick.h"
#include "connect_uart.h"
#include "encoding.h"

#if defined(FS_VFS)
#include <iot-vfs.h>
#endif

#define CPU0    (0)
#define CPU1    (1)
extern x_base cpu2_boot_flag;
extern void entry(void);
extern void SecondaryCpuCStart(void);
extern int IoConfigInit(void);
extern int HwSpiInit(void);
extern int HwI2cInit(void);
extern int HwRtcInit(void);
extern int HwWdtInit(void);
extern int HwLcdInit(void);

void InitBss(void)
{
    unsigned int *dst;

    dst = &__bss_start;
    while (dst < &__bss_end){
        *dst++ = 0;
    }
}

void Kd233Start(uint32_t mhartid)
{
	switch(mhartid) {
		case CPU0:
    		InitBss();

			/*kernel start entry*/
    		entry();
			break;
		case CPU1:
			while(0x2018050420191010 != cpu2_boot_flag) { ///< waiting for boot flag ,then start cpu1 core
#ifndef ARCH_SMP
				asm volatile("wfi");
#endif
			}
#ifdef ARCH_SMP
			SecondaryCpuCStart();
#endif
			break;

		default:
			break;
	}
}

int Freq(void)
{
    uint64 value = 0;

    value = SysctlClockGetFreq(SYSCTL_CLOCK_PLL0);
    KPrintf("PLL0: %d\n", value);
    value = SysctlClockGetFreq(SYSCTL_CLOCK_PLL1);
    KPrintf("PLL1: %d\n", value);
    value = SysctlClockGetFreq(SYSCTL_CLOCK_PLL2);
    KPrintf("PLL2: %d\n", value);
    value = SysctlClockGetFreq(SYSCTL_CLOCK_CPU);
    KPrintf("CPU : %d\n", value);
    value = SysctlClockGetFreq(SYSCTL_CLOCK_APB0);
    KPrintf("APB0: %d\n", value);
    value = SysctlClockGetFreq(SYSCTL_CLOCK_APB1);
    KPrintf("APB1: %d\n", value);
    value = SysctlClockGetFreq(SYSCTL_CLOCK_APB2);
    KPrintf("APB2: %d\n", value);
    value = SysctlClockGetFreq(SYSCTL_CLOCK_HCLK);
    KPrintf("HCLK: %d\n", value);

    value = clint_get_time();
    KPrintf("mtime: %d\n", value);

    return 0;
}
SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_FUNC)|SHELL_CMD_PARAM_NUM(0),Freq, Freq, show frequency information );

#ifdef ARCH_SMP
extern int EnableHwclintIpi(void);
#endif


void InitBoardHardware(void)
{
	int i = 0;
	int ret = 0;
	
    SysctlPllSetFreq(SYSCTL_PLL0, 800000000UL);
    SysctlPllSetFreq(SYSCTL_PLL1, 400000000UL);
#ifdef BSP_USING_GPIO
    /* Init FPIOA */
    FpioaInit();
#endif
#ifdef BSP_USING_DMA
    /* Dmac init */
    DmacInit();
#endif
    /* initalize interrupt */
    InitHwinterrupt();
#ifdef BSP_USING_UART    
    HwUartInit();
#endif
#ifdef KERNEL_CONSOLE
    /* set console device */
    InstallConsole(KERNEL_CONSOLE_BUS_NAME, KERNEL_CONSOLE_DRV_NAME, KERNEL_CONSOLE_DEVICE_NAME);
	KPrintf("\nconsole init completed.\n");
    KPrintf("board initialization......\n");
#endif /* KERNEL_CONSOLE */

    InitHwTick();

#ifdef ARCH_SMP
    EnableHwclintIpi();
#endif
    /* initialize memory system */
	InitBoardMemory(MEMORY_START_ADDRESS, MEMORY_END_ADDRESS);


	KPrintf("board init done.\n");
	KPrintf("start kernel...\n");
}

void HwCpuReset(void)
{
    sysctl->soft_reset.soft_reset = 1;
    while(RET_TRUE);
}

SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_FUNC)|SHELL_CMD_PARAM_NUM(0),Reboot, HwCpuReset,  reset machine );