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; }