int main(void)
{
unsigned cmd;
char c;
int i = 0,j;
timer_init();
#ifdef POWER_OFF_VDDIO
f_serial_puts("sleep ... off\n");
#else
f_serial_puts("sleep .......\n");
#endif
while(1){
cmd = readl(P_AO_RTI_STATUS_REG0);
if(cmd == 0)
{
delay_ms(10);
continue;
}
c = (char)cmd;
if(c == 't')
{
#if (defined(POWER_OFF_VDDIO) || defined(POWER_OFF_HDMI_VCC) || defined(POWER_OFF_AVDD33) || defined(POWER_OFF_AVDD25))
init_I2C();
#endif
copy_reboot_code();
enter_power_down();
break;
}
else if(c == 'q')
{
serial_puts(" - quit command loop\n");
writel(0,P_AO_RTI_STATUS_REG0);
break;
}
else
{
serial_puts(" - cmd no support (ARC)\n");
}
//command executed
writel(0,P_AO_RTI_STATUS_REG0);
}
while(1){
asm(".long 0x003f236f"); //add sync instruction.
asm("SLEEP");
}
return 0;
}
void enter_power_down()
{
int i;
unsigned int uboot_cmd_flag=readl(P_AO_RTI_STATUS_REG2);//u-boot suspend cmd flag
unsigned int vcin_state = 0;
int voltage = 0;
int axp_ocv = 0;
int wdt_flag;
// First, we disable all memory accesses.
f_serial_puts("step 1\n");
asm(".long 0x003f236f"); //add sync instruction.
store_restore_plls(0);
f_serial_puts("ddr self-refresh\n");
wait_uart_empty();
ddr_self_refresh();
f_serial_puts("CPU off...\n");
wait_uart_empty();
cpu_off();
f_serial_puts("CPU off done\n");
wait_uart_empty();
#ifdef CONFIG_CEC_WAKEUP
hdmi_cec_func_config = readl(P_AO_DEBUG_REG0);
f_serial_puts("CEC M8:uboot: P_AO_DEBUG_REG0:\n");
serial_put_hex(hdmi_cec_func_config,32);
f_serial_puts("\n");
#endif
if(p_arc_pwr_op->power_off_at_24M)
p_arc_pwr_op->power_off_at_24M();
#ifdef CONFIG_M201_COSTDOWN
/* for led */
clrbits_le32(P_AO_GPIO_O_EN_N,1<<18);
setbits_le32(P_AO_GPIO_O_EN_N,1<<29);
#endif
// while(readl(0xc8100000) != 0x13151719)
// {}
//non 32k crystal oscillator platform DONT enter 32k in suspend mode
#ifndef CONFIG_NON_32K
switch_24M_to_32K();
#endif
if(p_arc_pwr_op->power_off_at_32K_1)
p_arc_pwr_op->power_off_at_32K_1();
if(p_arc_pwr_op->power_off_at_32K_2)
p_arc_pwr_op->power_off_at_32K_2();
// gate off: bit0: REMOTE; bit3: UART
#ifndef CONFIG_NON_32K
writel(readl(P_AO_RTI_GEN_CNTL_REG0)&(~(0x8)),P_AO_RTI_GEN_CNTL_REG0);
#endif
if(uboot_cmd_flag == 0x87654321)//u-boot suspend cmd flag
{
if(p_arc_pwr_op->power_off_ddr15)
p_arc_pwr_op->power_off_ddr15();
}
wdt_flag=readl(P_WATCHDOG_TC)&(1<<19);
if(wdt_flag)
writel(readl(P_WATCHDOG_TC)&(~(1<<19)),P_WATCHDOG_TC);
#if 1
vcin_state = p_arc_pwr_op->detect_key(uboot_cmd_flag);
#else
for(i=0;i<10;i++)
{
udelay__(1000);
//udelay(1000);
}
#endif
if(uboot_cmd_flag == 0x87654321)//u-boot suspend cmd flag
{
if(p_arc_pwr_op->power_on_ddr15)
p_arc_pwr_op->power_on_ddr15();
}
if(wdt_flag)
writel((6*7812|((1<<16)-1))|(1<<19),P_WATCHDOG_TC);
// gate on: bit0: REMOTE; bit3: UART
writel(readl(P_AO_RTI_GEN_CNTL_REG0)|0x8,P_AO_RTI_GEN_CNTL_REG0);
if(p_arc_pwr_op->power_on_at_32K_2)
p_arc_pwr_op->power_on_at_32K_2();
if(p_arc_pwr_op->power_on_at_32K_1)
p_arc_pwr_op->power_on_at_32K_1();
#ifndef CONFIG_NON_32K
switch_32K_to_24M();
#endif
// power on even more domains
if(p_arc_pwr_op->power_on_at_24M)
p_arc_pwr_op->power_on_at_24M();
uart_reset();
f_serial_puts("step 8: ddr resume\n");
wait_uart_empty();
ddr_resume();
#ifdef CONFIG_M201_COSTDOWN
/* for led */
clrbits_le32(P_AO_GPIO_O_EN_N,1<<29);
setbits_le32(P_AO_GPIO_O_EN_N,1<<18);
#endif
f_serial_puts("restore pll\n");
wait_uart_empty();
store_restore_plls(1);//Before switch back to clk81, we need set PLL
if (uboot_cmd_flag == 0x87654321 && (vcin_state == FLAG_WAKEUP_PWROFF)) {
/*
* power off system before ARM is restarted
*/
f_serial_puts("no extern power shutdown\n");
wait_uart_empty();
p_arc_pwr_op->shut_down();
do {
udelay__(2000 * 100);
f_serial_puts("wait shutdown...\n");
wait_uart_empty();
}while(1);
}
#ifdef CONFIG_MESON_TRUSTZONE
copy_reboot_code(temp_arm_base);
#else
copy_reboot_code(NULL);
#endif
writel(vcin_state,P_AO_RTI_STATUS_REG2);
f_serial_puts("restart arm\n");
wait_uart_empty();
restart_arm();
if (uboot_cmd_flag == 0x87654321) {
writel(0,P_AO_RTI_STATUS_REG2);
writel(readl(P_AO_RTI_PWR_CNTL_REG0)|(1<<4),P_AO_RTI_PWR_CNTL_REG0);
clrbits_le32(P_HHI_SYS_CPU_CLK_CNTL,1<<19);
//writel(10,0xc1109904);
writel(1<<19|1<<24|10,0xc1109900);
do{udelay__(200);f_serial_puts("wait reset...\n");wait_uart_empty();}while(1);
}
}
int main(void)
{
unsigned cmd;
char c;
int i = 0,j;
timer_init();
#ifdef POWER_OFF_VDDIO
f_serial_puts("sleep ... off\n");
#else
f_serial_puts("sleep7 .......\n");
#endif
while(1){
cmd = readl(P_AO_RTI_STATUS_REG0);
if(cmd == 0)
{
delay_ms(10);
continue;
}
c = (char)cmd;
if(c == 't')
{
#if (defined(POWER_OFF_VDDIO) || defined(POWER_OFF_HDMI_VCC) || defined(POWER_OFF_AVDD33) || defined(POWER_OFF_AVDD25))
init_I2C();
#endif
copy_reboot_code();
enter_power_down();
//test_arc_core();
break;
}
else if(c == 'q')
{
serial_puts(" - quit command loop\n");
writel(0,P_AO_RTI_STATUS_REG0);
break;
}
else
{
serial_puts(" - cmd no support (ARC)\n");
}
//command executed
writel(0,P_AO_RTI_STATUS_REG0);
}
while(1){
udelay(6000);
cmd = readl(P_AO_RTI_STATUS_REG1);
c = (char)cmd;
if(c == 0)
{
udelay(6000);
cmd = readl(P_AO_RTI_STATUS_REG1);
c = (char)cmd;
if((c == 0)||(c!='r'))
{
#ifdef _UART_DEBUG_COMMUNICATION_
serial_put_hex(cmd,32);
f_serial_puts(" arm boot fail\n\n");
wait_uart_empty();
#endif
#if 0 //power down
cmd = readl(P_AO_GPIO_O_EN_N);
cmd &= ~(1<<6);
cmd &= ~(1<<22);
writel(cmd,P_AO_GPIO_O_EN_N);
#endif
}
}
else if(c=='r')
{
writel(0,0xc8100030);
#ifdef _UART_DEBUG_COMMUNICATION_
//f_serial_puts("arm boot succ\n");
//wait_uart_empty();
#endif
}
else
{
#ifdef _UART_DEBUG_COMMUNICATION_
serial_put_hex(cmd,32);
f_serial_puts(" arm unkonw state\n");
wait_uart_empty();
#endif
}
//cmd='f';
//writel(cmd,P_AO_RTI_STATUS_REG1);
asm(".long 0x003f236f"); //add sync instruction.
//asm("SLEEP");
asm("FLAG 1");//halt mode
}
return 0;
}
