arch/arm/cpu/armv7/sc8825/chg_phy.c

   1 #include <common.h>
   2 #include <asm/io.h>
   3
   4 #include <asm/arch/regs_adi.h>
   5 #include <asm/arch/adi_hal_internal.h>
   6 #include <asm/arch/analog_reg_v3.h>
   7
   8 uint16_t adc_voltage_table[2][2] =
   9 {
  10     {3750, 4200},
  11     {3210, 3600},
  12 };
  13 uint16_t CHGMNG_AdcvalueToVoltage (uint16_t adcvalue)
  14 {
  15         int32_t temp;
  16         temp = adc_voltage_table[0][1] - adc_voltage_table[1][1];
  17         temp = temp * (adcvalue - adc_voltage_table[0][0]);
  18         temp = temp / (adc_voltage_table[0][0] - adc_voltage_table[1][0]);
  19
  20         printf("uboot battery voltage:%d,adc4200:%d,adc3600:%d\n",temp + adc_voltage_table[0][1],
  21                 adc_voltage_table[0][0],adc_voltage_table[1][0]);
  22
  23         return temp + adc_voltage_table[0][1];
  24 }
  25
  26 void CHG_TurnOn (void)
  27 {
  28     ANA_REG_AND (ANA_CHGR_CTL1,~CHGR_PD_BIT);
  29 }
  30
  31 void CHG_ShutDown (void)
  32 {
  33     ANA_REG_OR (ANA_CHGR_CTL1,CHGR_PD_BIT);
  34 }
  35
  36 void CHG_SetADCCalTbl (unsigned int *adc_data)
  37 {
  38         if(adc_data) {
  39                 if(((adc_data[2]&0xffff) < 4500 ) && ((adc_data[2]&0xffff) > 3000)
  40                         && ((adc_data[3] & 0xffff) < 4500 ) && ((adc_data[3] & 0xffff) > 3000)) {
  41                         printf("adc_para = 0x%x 0x%x \n",adc_data[2],adc_data[3]);
  42                         adc_voltage_table[0][1]=adc_data[2]&0xffff;
  43                         adc_voltage_table[0][0]=(adc_data[2]>>16)&0xffff;
  44                         adc_voltage_table[1][1]=adc_data[3]&0xffff;
  45                         adc_voltage_table[1][0]=(adc_data[3]>>16)&0xffff;
  46                 }
  47         }
  48 }
  49
  50 void CHG_SetRecharge (void)
  51 {
  52         ANA_REG_OR (ANA_CHGR_CTL0,CHGR_RECHG_BIT);
  53 }
  54
  55 void CHG_Init (void)
  56 {
  57         unsigned int chip_id = 0;
  58
  59         ANA_REG_MSK_OR(ANA_CHGR_CTL0,CHGR_CC_EN_BIT,(CHGR_CC_EN_BIT | CHGR_CC_EN_RST_BIT));
  60         ANA_REG_MSK_OR(ANA_CHGR_CTL1,
  61                     (2 << CHGR_CHG_CUR_SHIFT) & CHGR_CHG_CUR_MSK,CHGR_CHG_CUR_MSK); //set charge current 500mA
  62         CHG_SetRecharge();
  63
  64         chip_id = ANA_REG_GET(ANA_CHIP_ID_LOW);
  65         chip_id |= (ANA_REG_GET(ANA_CHIP_ID_HIGH) << 16);
  66         if (chip_id == 0x8820A001) {    //metalfix
  67                 adc_voltage_table[0][0] = 3329;
  68                 adc_voltage_table[1][0] = 2855;
  69         }
  70 #ifdef CONFIG_AP_ADC_CALIBRATION
  71         {
  72                 extern int read_adc_calibration_data(char *buffer,int size);
  73                 unsigned int *adc_data;
  74                 int ret=0;
  75                 adc_data = malloc(64);
  76                 if(adc_data){
  77                         ret = read_adc_calibration_data(adc_data,48);
  78                         if((ret > 0) &&
  79                            ((adc_data[2]&0xffff) < 4500 )&&((adc_data[2]&0xffff) > 3000)&&
  80                            ((adc_data[3]&0xffff) < 4500 )&&((adc_data[3]&0xffff) > 3000)){
  81                                 printf("adc_para = 0x%x 0x%x \n",adc_data[2],adc_data[3]);
  82                                 adc_voltage_table[0][1]=adc_data[2]&0xffff;
  83                                 adc_voltage_table[0][0]=(adc_data[2]>>16)&0xffff;
  84                                 adc_voltage_table[1][1]=adc_data[3]&0xffff;
  85                                 adc_voltage_table[1][0]=(adc_data[3]>>16)&0xffff;
  86                         }
  87                 }
  88         }
  89 #endif
  90 }
  91