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Merge pull request #1 from reMarkable/lars/power_fixes 

Lars/power fixes
steinar/yocto-build-makeover
Lars Ivar Miljeteig 2018-05-25 11:02:24 +02:00 committed by GitHub
parent 2ba6b4d39d 0388c64a1a
commit df5c7fb133
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 69 additions and 7 deletions
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69
board/reMarkable/zero-gravitas/zero-gravitas.c
View File

@ -119,6 +119,11 @@ DECLARE_GLOBAL_DATA_PTR;
#define SNVS_REG_LPCR 0x20CC038
#define SNVS_MASK_POWEROFF (BIT(5) | BIT(6) | BIT(0))
#define SNVS_LPSR_ADDR 0x020CC04C
#define SNVS_LPSR_CLEAR 0xFFFFFFFF
#define SNVS_LPPGDR_ADDR 0x020CC064
#define SVNS_LPPGDR_CONST 0x41736166
/* For the BQ24133 charger */
#define BQ24133_CHRGR_OK IMX_GPIO_NR(4, 1)
#define USB_POWER_UP IMX_GPIO_NR(4, 6)
@ -441,6 +446,10 @@ static void pfuze100_dump(struct pmic *p)
static void snvs_poweroff(void)
{
/* Clear glitch detect to ensure proper poweroff */
writel(SVNS_LPPGDR_CONST, SNVS_LPPGDR_ADDR);
writel(SNVS_LPSR_CLEAR, SNVS_LPSR_ADDR);
writel(SNVS_MASK_POWEROFF, SNVS_REG_LPCR);
while (1) {
udelay(500000);
@ -481,7 +490,7 @@ static void set_fuelgauge_gpio_behavior(void)
mdelay(1);
ret = i2c_read(BQ27441_I2C_ADDR, BQ27441_OPCONFIG_1, 1, &opconfig, sizeof(opconfig));
ret = i2c_read(BQ27441_I2C_ADDR, BQ27441_OPCONFIG_1, 1, (uint8_t*)&opconfig, sizeof(opconfig));
if (ret) {
printf("Failed to read opconfig from fuel gauge\n");
return;
@ -614,6 +623,9 @@ static int check_battery(void)
int ret, flags;
uint8_t message[2];
int counter;
const int battery_poll_limit = 8;
I2C_SET_BUS(I2C_PMIC);
ret = i2c_read(BQ27441_I2C_ADDR, BQ27441_REG_FLAGS, 1, message, sizeof(message));
@ -641,10 +653,23 @@ static int check_battery(void)
printf("Battery fastcharge available\n");
}
counter = 0;
while ( (flags & BQ27441_FLAG_CRITCHARGE) && (counter++ < battery_poll_limit) ) {
mdelay(500);
ret = i2c_read(BQ27441_I2C_ADDR, BQ27441_REG_FLAGS, 1, message, sizeof(message));
if (ret) {
printf("BQ27441 battery flags read failure\n");
return -1;
}
flags = get_unaligned_le16(message);
printf("BQ27441 battery flags: %04x\n", flags);
}
if (flags & BQ27441_FLAG_CRITCHARGE) {
printf("Battery critically low, powering off\n");
return -1;
} else if (flags & BQ27441_FLAG_LOWCHARGE) {
}
if (flags & BQ27441_FLAG_LOWCHARGE) {
printf("Battery low charge\n");
} else if (flags & BQ27441_FLAG_FULLCHARGE) {
printf("Battery full charge\n");
@ -775,16 +800,48 @@ int power_init_board(void)
reg |= SW1xCONF_DVSSPEED_4US;
pmic_reg_write(p, PFUZE100_SW1CCONF, reg);
/* Set 3V3_SW4 voltage to 3.3V */
/* Set 3V3_SW2 voltage to 3.1V */
pmic_reg_read(p, PFUZE100_SW2VOL, &reg);
reg &= ~SW2_VOL_MASK;
reg |= SW2_3_10V;
pmic_reg_write(p, PFUZE100_SW2VOL, reg);
pmic_reg_read(p, PFUZE100_SW2STBY, &reg);
reg &= ~SW2_VOL_MASK;
reg |= SW2_3_10V;
pmic_reg_write(p, PFUZE100_SW2STBY, reg);
pmic_reg_read(p, PFUZE100_SW2OFF, &reg);
reg &= ~SW2_VOL_MASK;
reg |= SW2_3_10V;
pmic_reg_write(p, PFUZE100_SW2OFF, reg);
/* Set 3V3_SW4 voltage to 3.1V */
pmic_reg_read(p, PFUZE100_SW4VOL, &reg);
reg &= ~SW4_VOL_MASK;
reg |= SW4_3_300V;
reg |= SW4_3_10V;
pmic_reg_write(p, PFUZE100_SW4VOL, reg);
/* Set 3V3_VGEN6 voltage to 3.3V */
pmic_reg_read(p, PFUZE100_SW4STBY, &reg);
reg &= ~SW4_VOL_MASK;
reg |= SW4_3_10V;
pmic_reg_write(p, PFUZE100_SW4STBY, reg);
pmic_reg_read(p, PFUZE100_SW4OFF, &reg);
reg &= ~SW4_VOL_MASK;
reg |= SW4_3_10V;
pmic_reg_write(p, PFUZE100_SW4OFF, reg);
/* Set 3V3_VGEN5 voltage to 3.1V */
pmic_reg_read(p, PFUZE100_VGEN5VOL, &reg);
reg &= ~LDO_VOL_MASK;
reg |= LDOB_3_10V;
pmic_reg_write(p, PFUZE100_VGEN5VOL, reg);
/* Set 3V3_VGEN6 voltage to 3.1V */
pmic_reg_read(p, PFUZE100_VGEN6VOL, &reg);
reg &= ~LDO_VOL_MASK;
reg |= LDOB_3_30V;
reg |= LDOB_3_10V;
pmic_reg_write(p, PFUZE100_VGEN6VOL, reg);
/* Set modes */

2
flash.sh
View File

@ -1,6 +1,6 @@
#!/bin/bash
scp u-boot.imx zg2:.
scp u-boot.imx root@10.11.99.1:.
ssh root@10.11.99.1 'echo 0 > /sys/block/mmcblk1boot0/force_ro'
ssh root@10.11.99.1 'dd if=u-boot.imx of=/dev/mmcblk1boot0 bs=512 seek=2'
ssh root@10.11.99.1 'echo 1 > /sys/block/mmcblk1boot0/force_ro'

5
include/power/pfuze100_pmic.h
View File

@ -107,8 +107,13 @@ enum {
#define PFUZE100_SW1ABC_SETP(x) ((x - 3000) / 250)
/* SW2 Output Voltage Configuration */
#define SW2_3_10V 110
#define SW2_VOL_MASK 0x7F
/* SW4 Output Voltage Configuration */
#define SW4_1_800V 56
#define SW4_3_10V 110
#define SW4_3_300V 114
#define SW4_VOL_MASK 0x7F