boot/common/src/loader/lib/board.c

/*
 * Copyright (C) 2016 ZXIC Inc.
 *
 */
#include <common.h>
#include <version.h>
#include <asm/io.h>
#include <asm/string.h>
#include <asm/arch/cpu.h>
#include <image.h>
#include <linux/byteorder/generic.h>
#include <load_mode.h>
#include <asm/arch/top_clock.h>
#include <asm/arch/uart.h>

#include "config.h"
#include "ddr.h"
#include "../drivers/efuse.h"
#include "../drivers/flash.h"

#define FLAGS_PARTITION_ERROR (0x1111) /*·ÖÇøÒì³£*/

typedef short (init_fnc_t) (void);

int print_info(void)
{
#if defined(CFG_ZLOAD)
	printf ("\nInc zloader 1.3.4\n");
#else
	printf ("\nInc tLoader 1.3.4\n");
#endif
	return 0;
}

void copy_to_iram1(void) 
{
	memcpy(0x100000, 0x8a000, 0x2000);	/* TEXT_BASE=0x100000 */
	writel(CFG_START_STAGE1_STATE, CFG_START_STAGE1_ADDR);
}

/*
 ******************************************************************************
 * Function:     
 * Description: 
 * Parameters:
 *	 Input:
 *	 Output:
 * Returns:
 * Others: IRAM addr is provided from ap
 *******************************************************************************
 */
void clear_iram( void )
{
	uint32_t i = 0;

	for( i=0x82000400; i<=0x82003400; i+=4 )    
	{
		writel(0x0, i);
	}
}

/*
 ******************************************************************************
 * Function:     
 * Description: 
 * Parameters:
 *	 Input:
 *	 Output:
 * Returns:
 * Others:
 *******************************************************************************
 */
 void write_loader_mode(uint32_t mode)
{
	writel(mode, CFG_BOOT_MODE_SAVE_ADDR_FOR_UBOOT);  
}

void hang (void)
{
	/* call board specific hang function */
	for (;;);
}

/*******************************************************************************
 * Function:     
 * Description: 
 * Parameters:
 *	 Input:
 *
 *	 Output:
 *
 * Returns:
 *
 *
 * Others:
 ********************************************************************************/
void usb_apcore_poweroff(void)
{
	u32 tmp;

	tmp =readl(USB_RESET); /*usb hsic reset*/
	tmp	&= ~0x7;
	writel(tmp, USB_RESET);
	
	tmp =readl(CORE_OUTPUT_SWITCH_CONFIG_REG);/*ap clk&mg control by sw*/
	tmp &= ~((0x1<<2)|(0x1<<5));
	writel(tmp, CORE_OUTPUT_SWITCH_CONFIG_REG);
	
	tmp =readl(CORE_OUTPUT_SW_CONFIG_REG1);/*ap clk off*/
	tmp &= ~(0x1<<2);
	writel(tmp, CORE_OUTPUT_SW_CONFIG_REG1);	
	
	tmp =readl(CORE_OUTPUT_SW_CONFIG_REG2);/*ap mg iso*/
	tmp |= (0x1<<5);
	writel(tmp, CORE_OUTPUT_SW_CONFIG_REG2);
	
	usdelay(1);

	tmp =readl(CORE_OUTPUT_SW_CONFIG_REG2);/*ap mg rst*/
	tmp |= (0x1<<4);
	writel(tmp, CORE_OUTPUT_SW_CONFIG_REG2);
	
	usdelay(1);

	tmp =readl(CORE_OUTPUT_SW_CONFIG_REG2);/*ap mg off*/
	tmp &= ~(0x1<<3);
	writel(tmp, CORE_OUTPUT_SW_CONFIG_REG2);	
	
	//__REG(0x0013a0ac) &= ~((0x1<<2)|(0x1<<5));    /*ap clk&mg control by sw*/
	//__REG(0x0013a0b8)       &= ~(0x1<<2);               /*ap clk off*/
	//__REG(0x0013a0bc)       |= (0x1<<5);               /*ap mg iso*/
	//__REG(0x0013a0bc)       |= (0x1<<4);               /*ap mg rst*/
	//__REG(0x0013a0bc)       &= ~(0x1<<3);              /*ap mg off*/	
}

#ifdef CONFIG_ZX297520V3E_MDL_AB
void start_armboot (void)
{
	int32_t ret = 0;
	int32_t add;
	uint32_t amt_value = 0;
	int32_t err_flag = 0;
    T_BOOT_TARGET bootTarget;
	T_BOOT_FOTA_FLAG flagsData;
	T_BOOT_FOTA_FLAG *fotaFlag;
	T_FOTA_FLAG_INFO *fotaFlagInfo;
	T_BOOT_DUALSYSTEM_TYPE dualSystemType;

	clk_init();
	timer_init();
#if CFG_PRINTF
	uart_init();
#endif
	print_info();

	/* After reset, Copy zloader forcely. */
	/* Now IRAM1 maybe occupied by dirty data. */
	writel(0, CFG_START_STAGE1_ADDR);
	amt_value = readl(CFG_AMT_MODE_SWITCH_ADDR);
	clear_iram();
	writel(amt_value, CFG_AMT_MODE_SWITCH_ADDR);

	ret = board_flash_init();
	if(ret != 0)
	{
		goto error;
	}	
		
	efuse_init();

	if(get_ddr_flag() == CHIP_DDR_IS_32M)
	{
		ddr_init(CHIP_DDR_IS_32M);
	}
	else if(get_ddr_flag() == CHIP_DDR_IS_64M)
	{
		ddr_init(CHIP_DDR_IS_64M);
	}
	else if(get_ddr_flag() == CHIP_DDR_IS_128M)
	{
		ddr_init(CHIP_DDR_IS_128M);		
	}	
	else
	{
		ddr_init(CHIP_DDR_IS_256M);
	}
	
	usb_apcore_poweroff();
/********************* ÔËÐÐT-LOAD,½øÈëÏÂÔØģʽ ******************/
#if defined(CFG_TLOAD)
	write_loader_mode(CFG_TLOAD_MODE);

#if CFG_USB
	usb_boot(SYS_USB_BASE);
#endif

#if CFG_UART
	uart_boot();
#endif
    
#endif	/* CFG_TLOAD */

/********************* ÔËÐÐZ-LOAD,½øÈëÕý³£Æô¶¯Ä£Ê½ **********/
#if defined(CFG_ZLOAD)
	uint32_t uboot_entry_point = 0;
	char boot_mode = 0;

	write_loader_mode(CFG_ZLOAD_MODE);

	/*read flags·ÖÇø*/
	ret = read_flags_image((uint8_t *)FLAGS_IMAGE);

	if( ret != 0 )
	{
		printf("read flags partition error! Use default parameters\n");
		//goto error;
		err_flag = 1;
		
		/*ĬÈÏflags·ÖÇøÊý¾Ý*/
		flagsData.magic = FLAGS_MAGIC;
		flagsData.boot_to = DUAL_SYSTEM;
		flagsData.fota_status = 1;
		flagsData.system.status = DUALSYSTEM_STATUS_BOOTABLE;
		flagsData.system2.status = DUALSYSTEM_STATUS_BOOTABLE;
		fotaFlag = &flagsData;
	}
	else
	{
        fotaFlag = (T_BOOT_FOTA_FLAG *)(CFG_TEMP_ADDR);
	}

	bootTarget = fotaFlag->boot_to;

	writel(DUALSYSTEM_STATUS_BOOTABLE, BOOT_FLAG_ADDR);/*ĬÈÏ¿ÉÆô¶¯*/
	
    if(bootTarget == DUAL_SYSTEM)
    {
        if (fotaFlag->system.status == DUALSYSTEM_STATUS_UNBOOTABLE)
        {
            printf("dual_system status is unbootable!");
		    goto error;
		}
		ret = read_uboot_image((uint8_t *)UBOOT_IMAGE, &uboot_entry_point);    
		if( ret != 0)
        {
            printf("read uboot1 image error, goto uboot2!");
			writel(DUALSYSTEM_STATUS_UNBOOTABLE, BOOT_FLAG_ADDR);		
			ret = read_uboot_image((uint8_t *)UBOOT2_IMAGE, &uboot_entry_point);		
			if( ret != 0)
	        {
	            printf("read uboot2 iamge error!");
				goto error;	
			}
		}
		else	
		    printf("goto uboot!");
	}
    else if(bootTarget == DUAL_SYSTEM2)
    {
        if (fotaFlag->system2.status == DUALSYSTEM_STATUS_UNBOOTABLE)
        {
            printf("dual_system2 status is unbootable!");
		    goto error;
		}
		ret = read_uboot_image((uint8_t *)UBOOT2_IMAGE, &uboot_entry_point);		
		if( ret != 0)
        {
            printf("read uboot2 iamge error, goto uboot!");
			writel(DUALSYSTEM_STATUS_UNBOOTABLE, BOOT_FLAG_ADDR);	
			ret = read_uboot_image((uint8_t *)UBOOT_IMAGE, &uboot_entry_point);		
			if( ret != 0)
	        {
	            printf("read uboot iamge error!");
				goto error;	
			}
		}
		else
		    printf("goto uboot2!");
	}
	else
	{
		printf("boot target get error!");
		goto error;
	}

	if(err_flag == 1)
	{
        writel(FLAGS_PARTITION_ERROR, BOOT_FLAG_ADDR);
	}
	
	printf("read uboot ok.\n");
	
	/* set arm jump PC start code  */
	writel(0xE59ff000, SYS_IRAM1_BASE);			
	writel(uboot_entry_point, SYS_IRAM1_BASE + 8);

	printf("start uboot...\n");
	/* Relese A9 Core, A9 start to run uboot right now. */
	writel(CPU_UFI_SW_RSTEN, CPU_A9_SUBSYS_CFG);	


	/* waiting for uboot read m0 image. */
	uint32_t m0_entry_point = 0;
	ret = nand_read_m0(&m0_entry_point);
	if(ret != 0)
	{
		goto error;
	}

	/* M0 Core start to run cpurpm right now. */
	((init_fnc_t *)m0_entry_point)();
	
#endif

error:
	printf("ERR\n");
	hang();
}
#else
void start_armboot (void)
{
	int32_t ret = 0;
	uint32_t amt_value = 0;


	clk_init();
	timer_init();
#if CFG_PRINTF
	uart_init();
#endif
	print_info();

	/* After reset, Copy zloader forcely. */
	/* Now IRAM1 maybe occupied by dirty data. */
	writel(0, CFG_START_STAGE1_ADDR);
	amt_value = readl(CFG_AMT_MODE_SWITCH_ADDR);
	clear_iram();
	writel(amt_value, CFG_AMT_MODE_SWITCH_ADDR);

	ret = board_flash_init();
	if(ret != 0)
	{
		goto error;
	}	
		
	efuse_init();

	if(get_ddr_flag() == CHIP_DDR_IS_32M)
	{
		ddr_init(CHIP_DDR_IS_32M);
	}
	else if(get_ddr_flag() == CHIP_DDR_IS_64M)
	{
		ddr_init(CHIP_DDR_IS_64M);
	}
	else if(get_ddr_flag() == CHIP_DDR_IS_128M)
	{
		ddr_init(CHIP_DDR_IS_128M);		
	}	
	else
	{
		ddr_init(CHIP_DDR_IS_256M);
	}
	
	
	usb_apcore_poweroff();
/********************* ÔËÐÐT-LOAD,½øÈëÏÂÔØģʽ ******************/
#if defined(CFG_TLOAD)
	write_loader_mode(CFG_TLOAD_MODE);

#if CFG_USB
	usb_boot(SYS_USB_BASE);
#endif

#if CFG_UART
	uart_boot();
#endif
    
#endif	/* CFG_TLOAD */

/********************* ÔËÐÐZ-LOAD,½øÈëÕý³£Æô¶¯Ä£Ê½ **********/
#if defined(CFG_ZLOAD)
	uint32_t uboot_entry_point = 0;
	char boot_mode = 0;

	write_loader_mode(CFG_ZLOAD_MODE);

	ret = read_uboot_image((uint8_t *)UBOOT_IMAGE, &uboot_entry_point);
	if( ret != 0 )
	{
		boot_mode = get_boot_mode();
		if((boot_mode == SPI_NAND_BOOT) || (boot_mode == NAND_BOOT))
		{
			ret = read_uboot_image((uint8_t *)UBOOT_MIRROR_IMAGE, 
									&uboot_entry_point);
			if(ret != 0)
			{
				goto error;
			}
		}
		else
		{
			goto error;
		}
	}
	printf("read uboot ok.\n");
	
	/* set arm jump PC start code  */
	writel(0xE59ff000, SYS_IRAM1_BASE);			
	writel(uboot_entry_point, SYS_IRAM1_BASE + 8);

	printf("start uboot...\n");
	/* Relese A9 Core, A9 start to run uboot right now. */
	writel(CPU_UFI_SW_RSTEN, CPU_A9_SUBSYS_CFG);	


	/* waiting for uboot read m0 image. */
	uint32_t m0_entry_point = 0;
	ret = nand_read_m0(&m0_entry_point);
	if(ret != 0)
	{
		goto error;
	}

	/* M0 Core start to run cpurpm right now. */
	((init_fnc_t *)m0_entry_point)();
	
#endif

error:
	printf("ERR\n");
	hang();
}
#endif