C++ (Cpp) change_runtime_env Exemples

Exemple #1

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Fichier : resume1.c Projet : Vassilko/lichee

void restore_ccmu(void)
{
    /* gating off dram clock */
    //mem_clk_dramgating(0);
    int i=0;
#if 0   
    for(i=0; i<6; i++){
        dram_hostport_on_off(i, 0);
    }
    
    for(i=16; i<31; i++){
        dram_hostport_on_off(i, 0);
    }
#endif


#if 1
    if (likely(mem_para_info.axp_enable))
    {
        while( 0 != mem_set_voltage(POWER_VOL_DCDC2, mem_para_info.suspend_dcdc2)){
                ;
        }
        while(0 != mem_set_voltage(POWER_VOL_DCDC3, mem_para_info.suspend_dcdc3)){
                ;
        }
    }
#endif

    change_runtime_env(1);
    delay_ms(10);

    mem_clk_setdiv(&mem_para_info.clk_div);
    mem_clk_set_pll_factor(&mem_para_info.pll_factor);
    change_runtime_env(1);
    delay_ms(mem_para_info.suspend_delay_ms);

#if 0
    /* gating on dram clock */
    //mem_clk_dramgating(1);
    for(i=0; i<6; i++){
        dram_hostport_on_off(i, 1);
    }
    
    for(i=16; i<31; i++){
        dram_hostport_on_off(i, 1);
    }
#endif

    return;
}

Exemple #2

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Fichier : super_twi.c Projet : Vassilko/lichee

/*
*********************************************************************************************************
*                                   mem_twi_exit
*
*Description: exit twi transfer.
*
*Arguments  :
*
*Return     :
*
*********************************************************************************************************
*/
__s32 mem_twi_exit(void)
{
    /* softreset twi module  */
    twi_reg->reg_reset |= 0x1;
    /* delay */
    //mem_mdelay(10);
    change_runtime_env(1);
	delay_ms(10);

    /* restore clock division */
    twi_reg->reg_clkr = TwiClkRegBak;
    /* restore INT_EN */
    twi_reg->reg_ctl |= TwiCtlRegBak;
    return 0;
}

Exemple #3

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Fichier : mem_serial.c Projet : 925outer/BPI-M2P-bsp

//notice: sun8iw8 use uart2, this interface need support this.
static __u32 set_serial_clk(__u32 mmu_flag)
{
	__u32 			src_freq = 0;
	__u32 			p2clk = 0;
	
	volatile unsigned int 	*reg = (volatile unsigned int 	*)(0);
	__ccmu_reg_list_t 	*ccu_reg = (__ccmu_reg_list_t 	*)(0);	
	__ccmu_apb2_ratio_reg0058_t apb2_reg;
	
	__u32 port = 0;
	__u32 i = 0;

	ccu_reg = (__ccmu_reg_list_t   *)mem_get_ba();
	apb2_reg.dwval = ccu_reg->Apb2Div.dwval; 
	//check uart clk src is ok or not.
	//the uart clk src need to be pll6 & clk freq == 600M?
	//so the baudrate == p2clk/(16*div)
	switch(apb2_reg.bits.ClkSrc){
		case 0:
			src_freq = 32000;	//32k
			break;
		case 1:
			src_freq = 24000000;	//24M
			break;
		case 2:
#ifdef CONFIG_ARCH_SUN8IW6P1
			src_freq = 1200000000;	//1200M
#else
			src_freq = 600000000;	//600M
#endif
			break;
		default:
			break;
	}

	//calculate p2clk.
	p2clk = src_freq/((apb2_reg.bits.DivM + 1) * (1<<(apb2_reg.bits.DivN)));

	/*notice:
	**	not all the p2clk is able to create the specified baudrate.
	**	unproper p2clk may result in unacceptable baudrate, just because
	**	the uartdiv is not proper and the baudrate err exceed the acceptable range. 
	*/
	if(mmu_flag){
		//backup apb2 gating;
		backup_ccu_uart = *(volatile unsigned int *)(IO_ADDRESS(AW_CCU_UART_PA));
		//backup uart reset 
		backup_ccu_uart_reset = *(volatile unsigned int *)(IO_ADDRESS(AW_CCU_UART_RESET_PA));

		//de-assert uart reset
		reg = (volatile unsigned int *)(IO_ADDRESS(AW_CCU_UART_RESET_PA));
		*reg &= ~(1 << (16 + port));
		for( i = 0; i < 100; i++ );
		*reg |=  (1 << (16 + port));
		change_runtime_env();
		delay_us(1);	
		//config uart clk: apb2 gating.
		reg = (volatile unsigned int *)(IO_ADDRESS(AW_CCU_UART_PA));
		*reg &= ~(1 << (16 + port));
		for( i = 0; i < 100; i++ );
		*reg |=  (1 << (16 + port));

	}else{
		//de-assert uart reset
		reg = (volatile unsigned int *)(AW_CCU_UART_RESET_PA);
		*reg &= ~(1 << (16 + port));
		for( i = 0; i < 100; i++ );
		*reg |=  (1 << (16 + port));
		change_runtime_env();
		delay_us(1);	
		//config uart clk
		reg = (volatile unsigned int *)(AW_CCU_UART_PA);
		*reg &= ~(1 << (16 + port));
		for( i = 0; i < 100; i++ );
		*reg |=  (1 << (16 + port));

	}

	return p2clk;
	
}

Exemple #4

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Fichier : mem_serial.c Projet : 925outer/BPI-M2P-bsp

static __u32 set_serial_clk(__u32 mmu_flag)
{
	__u32 			src_freq = 0;
	__u32 			p2clk = 0;
	volatile unsigned int 	*reg = (volatile unsigned int 	*)(0);
	__ccmu_reg_list_t 	*ccu_reg = (__ccmu_reg_list_t 	*)(0);	
	__u32 port = 0;
	__u32 i = 0;

	ccu_reg = (__ccmu_reg_list_t   *)mem_get_ba();
	//check uart clk src is ok or not.
	//the uart clk src need to be pll6 & clk freq == 600M?
	//so the baudrate == p2clk/(16*div)
	switch(ccu_reg->Apb1_Cfg.bits.apb1_clk_src_sel){
		case 0:
			src_freq = 24000000;	//24M
			break;
		case 1:
			src_freq = 960000000;	//FIXME: need confirm the freq!
			break;
		default:
			break;
	}

	//calculate p2clk.
	p2clk = src_freq/((ccu_reg->Apb1_Cfg.bits.clk_rat_m + 1) * (1<<(ccu_reg->Apb1_Cfg.bits.clk_rat_n)));

	/*notice:
	**	not all the p2clk is able to create the specified baudrate.
	**	unproper p2clk may result in unacceptable baudrate, just because
	**	the uartdiv is not proper and the baudrate err exceed the acceptable range. 
	*/
	if(mmu_flag){
		//backup apb2 gating;
		backup_ccu_uart = *(volatile unsigned int *)(IO_ADDRESS(AW_CCU_UART_PA));
		//backup uart reset 
		backup_ccu_uart_reset = *(volatile unsigned int *)(IO_ADDRESS(AW_CCU_UART_RESET_PA));

		//config uart clk: apb2 gating.
		reg = (volatile unsigned int *)(IO_ADDRESS(AW_CCU_UART_PA));
		*reg &= ~(1 << (16 + port));
		for( i = 0; i < 100; i++ );
		*reg |=  (1 << (16 + port));
		change_runtime_env();
		delay_us(1);	
		//de-assert uart reset
		reg = (volatile unsigned int *)(IO_ADDRESS(AW_CCU_UART_RESET_PA));
		*reg &= ~(1 << (16 + port));
		for( i = 0; i < 100; i++ );
		*reg |=  (1 << (16 + port));

	}else{
		//config uart clk
		reg = (volatile unsigned int *)(AW_CCU_UART_PA);
		*reg &= ~(1 << (16 + port));
		for( i = 0; i < 100; i++ );
		*reg |=  (1 << (16 + port));
		change_runtime_env();
		delay_us(1);	
		//de-assert uart reset
		reg = (volatile unsigned int *)(AW_CCU_UART_RESET_PA);
		*reg &= ~(1 << (16 + port));
		for( i = 0; i < 100; i++ );
		*reg |=  (1 << (16 + port));

	}

	return p2clk;
	
}

Exemple #5

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