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u-boot/drivers/power/regulator/rk8xx.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*
* Based on Rockchip's drivers/power/pmic/pmic_rk808.c:
* Copyright (C) 2012 rockchips
* zyw <zyw@rock-chips.com>
*/
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <log.h>
#include <power/rk8xx_pmic.h>
#include <power/pmic.h>
#include <power/regulator.h>
#ifndef CONFIG_SPL_BUILD
#define ENABLE_DRIVER
#endif
/* Not used or exisit register and configure */
#define NA 0xff
/* Field Definitions */
#define RK808_BUCK_VSEL_MASK 0x3f
#define RK808_BUCK4_VSEL_MASK 0xf
#define RK808_LDO_VSEL_MASK 0x1f
/* RK809 BUCK5 */
#define RK809_BUCK5_CONFIG(n) (0xde + (n) * 1)
#define RK809_BUCK5_VSEL_MASK 0x07
/* RK817 BUCK */
#define RK817_BUCK_ON_VSEL(n) (0xbb + 3 * ((n) - 1))
#define RK817_BUCK_SLP_VSEL(n) (0xbc + 3 * ((n) - 1))
#define RK817_BUCK_VSEL_MASK 0x7f
#define RK817_BUCK_CONFIG(i) (0xba + (i) * 3)
/* RK817 LDO */
#define RK817_LDO_ON_VSEL(n) (0xcc + 2 * ((n) - 1))
#define RK817_LDO_SLP_VSEL(n) (0xcd + 2 * ((n) - 1))
#define RK817_LDO_VSEL_MASK 0x7f
/* RK817 ENABLE */
#define RK817_POWER_EN(n) (0xb1 + (n))
#define RK817_POWER_SLP_EN(n) (0xb5 + (n))
#define RK818_BUCK_VSEL_MASK 0x3f
#define RK818_BUCK4_VSEL_MASK 0x1f
#define RK818_LDO_VSEL_MASK 0x1f
#define RK818_LDO3_ON_VSEL_MASK 0xf
#define RK818_BOOST_ON_VSEL_MASK 0xe0
#define RK818_USB_ILIM_SEL_MASK 0x0f
#define RK818_USB_CHG_SD_VSEL_MASK 0x70
/*
* Ramp delay
*/
#define RK805_RAMP_RATE_OFFSET 3
#define RK805_RAMP_RATE_MASK (3 << RK805_RAMP_RATE_OFFSET)
#define RK805_RAMP_RATE_3MV_PER_US (0 << RK805_RAMP_RATE_OFFSET)
#define RK805_RAMP_RATE_6MV_PER_US (1 << RK805_RAMP_RATE_OFFSET)
#define RK805_RAMP_RATE_12_5MV_PER_US (2 << RK805_RAMP_RATE_OFFSET)
#define RK805_RAMP_RATE_25MV_PER_US (3 << RK805_RAMP_RATE_OFFSET)
#define RK808_RAMP_RATE_OFFSET 3
#define RK808_RAMP_RATE_MASK (3 << RK808_RAMP_RATE_OFFSET)
#define RK808_RAMP_RATE_2MV_PER_US (0 << RK808_RAMP_RATE_OFFSET)
#define RK808_RAMP_RATE_4MV_PER_US (1 << RK808_RAMP_RATE_OFFSET)
#define RK808_RAMP_RATE_6MV_PER_US (2 << RK808_RAMP_RATE_OFFSET)
#define RK808_RAMP_RATE_10MV_PER_US (3 << RK808_RAMP_RATE_OFFSET)
#define RK817_RAMP_RATE_OFFSET 6
#define RK817_RAMP_RATE_MASK (0x3 << RK817_RAMP_RATE_OFFSET)
#define RK817_RAMP_RATE_3MV_PER_US (0x0 << RK817_RAMP_RATE_OFFSET)
#define RK817_RAMP_RATE_6_3MV_PER_US (0x1 << RK817_RAMP_RATE_OFFSET)
#define RK817_RAMP_RATE_12_5MV_PER_US (0x2 << RK817_RAMP_RATE_OFFSET)
#define RK817_RAMP_RATE_25MV_PER_US (0x3 << RK817_RAMP_RATE_OFFSET)
struct rk8xx_reg_info {
uint min_uv;
uint step_uv;
u8 vsel_reg;
u8 vsel_sleep_reg;
u8 config_reg;
u8 vsel_mask;
u8 min_sel;
};
static const struct rk8xx_reg_info rk808_buck[] = {
{ 712500, 12500, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK808_BUCK_VSEL_MASK, },
{ 712500, 12500, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK808_BUCK_VSEL_MASK, },
{ 712500, 12500, NA, NA, REG_BUCK3_CONFIG, RK808_BUCK_VSEL_MASK, },
{ 1800000, 100000, REG_BUCK4_ON_VSEL, REG_BUCK4_SLP_VSEL, REG_BUCK4_CONFIG, RK808_BUCK4_VSEL_MASK, },
};
static const struct rk8xx_reg_info rk816_buck[] = {
/* buck 1 */
{ 712500, 12500, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK818_BUCK_VSEL_MASK, 0x00, },
{ 1800000, 200000, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK818_BUCK_VSEL_MASK, 0x3c, },
{ 2300000, 0, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK818_BUCK_VSEL_MASK, 0x3f, },
/* buck 2 */
{ 712500, 12500, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK818_BUCK_VSEL_MASK, 0x00, },
{ 1800000, 200000, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK818_BUCK_VSEL_MASK, 0x3c, },
{ 2300000, 0, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK818_BUCK_VSEL_MASK, 0x3f, },
/* buck 3 */
{ 712500, 12500, NA, NA, REG_BUCK3_CONFIG, RK818_BUCK_VSEL_MASK, },
/* buck 4 */
{ 800000, 100000, REG_BUCK4_ON_VSEL, REG_BUCK4_SLP_VSEL, REG_BUCK4_CONFIG, RK818_BUCK4_VSEL_MASK, },
};
static const struct rk8xx_reg_info rk809_buck5[] = {
/* buck 5 */
{ 1500000, 0, RK809_BUCK5_CONFIG(0), RK809_BUCK5_CONFIG(1), NA, RK809_BUCK5_VSEL_MASK, 0x00, },
{ 1800000, 200000, RK809_BUCK5_CONFIG(0), RK809_BUCK5_CONFIG(1), NA, RK809_BUCK5_VSEL_MASK, 0x01, },
{ 2800000, 200000, RK809_BUCK5_CONFIG(0), RK809_BUCK5_CONFIG(1), NA, RK809_BUCK5_VSEL_MASK, 0x04, },
{ 3300000, 300000, RK809_BUCK5_CONFIG(0), RK809_BUCK5_CONFIG(1), NA, RK809_BUCK5_VSEL_MASK, 0x06, },
};
static const struct rk8xx_reg_info rk817_buck[] = {
/* buck 1 */
{ 500000, 12500, RK817_BUCK_ON_VSEL(1), RK817_BUCK_SLP_VSEL(1), RK817_BUCK_CONFIG(1), RK817_BUCK_VSEL_MASK, 0x00, },
{ 1500000, 100000, RK817_BUCK_ON_VSEL(1), RK817_BUCK_SLP_VSEL(1), RK817_BUCK_CONFIG(1), RK817_BUCK_VSEL_MASK, 0x50, },
{ 2400000, 0, RK817_BUCK_ON_VSEL(1), RK817_BUCK_SLP_VSEL(1), RK817_BUCK_CONFIG(1), RK817_BUCK_VSEL_MASK, 0x59, },
/* buck 2 */
{ 500000, 12500, RK817_BUCK_ON_VSEL(2), RK817_BUCK_SLP_VSEL(2), RK817_BUCK_CONFIG(2), RK817_BUCK_VSEL_MASK, 0x00, },
{ 1500000, 100000, RK817_BUCK_ON_VSEL(2), RK817_BUCK_SLP_VSEL(2), RK817_BUCK_CONFIG(2), RK817_BUCK_VSEL_MASK, 0x50, },
{ 2400000, 0, RK817_BUCK_ON_VSEL(2), RK817_BUCK_SLP_VSEL(2), RK817_BUCK_CONFIG(2), RK817_BUCK_VSEL_MASK, 0x59, },
/* buck 3 */
{ 500000, 12500, RK817_BUCK_ON_VSEL(3), RK817_BUCK_SLP_VSEL(3), RK817_BUCK_CONFIG(3), RK817_BUCK_VSEL_MASK, 0x00, },
{ 1500000, 100000, RK817_BUCK_ON_VSEL(3), RK817_BUCK_SLP_VSEL(3), RK817_BUCK_CONFIG(3), RK817_BUCK_VSEL_MASK, 0x50, },
{ 2400000, 0, RK817_BUCK_ON_VSEL(3), RK817_BUCK_SLP_VSEL(3), RK817_BUCK_CONFIG(3), RK817_BUCK_VSEL_MASK, 0x59, },
/* buck 4 */
{ 500000, 12500, RK817_BUCK_ON_VSEL(4), RK817_BUCK_SLP_VSEL(4), RK817_BUCK_CONFIG(4), RK817_BUCK_VSEL_MASK, 0x00, },
{ 1500000, 100000, RK817_BUCK_ON_VSEL(4), RK817_BUCK_SLP_VSEL(4), RK817_BUCK_CONFIG(4), RK817_BUCK_VSEL_MASK, 0x50, },
{ 3400000, 0, RK817_BUCK_ON_VSEL(4), RK817_BUCK_SLP_VSEL(4), RK817_BUCK_CONFIG(4), RK817_BUCK_VSEL_MASK, 0x63, },
};
static const struct rk8xx_reg_info rk818_buck[] = {
{ 712500, 12500, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK818_BUCK_VSEL_MASK, },
{ 712500, 12500, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK818_BUCK_VSEL_MASK, },
{ 712500, 12500, NA, NA, REG_BUCK3_CONFIG, RK818_BUCK_VSEL_MASK, },
{ 1800000, 100000, REG_BUCK4_ON_VSEL, REG_BUCK4_SLP_VSEL, REG_BUCK4_CONFIG, RK818_BUCK4_VSEL_MASK, },
};
#ifdef ENABLE_DRIVER
static const struct rk8xx_reg_info rk808_ldo[] = {
{ 1800000, 100000, REG_LDO1_ON_VSEL, REG_LDO1_SLP_VSEL, NA, RK808_LDO_VSEL_MASK, },
{ 1800000, 100000, REG_LDO2_ON_VSEL, REG_LDO2_SLP_VSEL, NA, RK808_LDO_VSEL_MASK, },
{ 800000, 100000, REG_LDO3_ON_VSEL, REG_LDO3_SLP_VSEL, NA, RK808_BUCK4_VSEL_MASK, },
{ 1800000, 100000, REG_LDO4_ON_VSEL, REG_LDO4_SLP_VSEL, NA, RK808_LDO_VSEL_MASK, },
{ 1800000, 100000, REG_LDO5_ON_VSEL, REG_LDO5_SLP_VSEL, NA, RK808_LDO_VSEL_MASK, },
{ 800000, 100000, REG_LDO6_ON_VSEL, REG_LDO6_SLP_VSEL, NA, RK808_LDO_VSEL_MASK, },
{ 800000, 100000, REG_LDO7_ON_VSEL, REG_LDO7_SLP_VSEL, NA, RK808_LDO_VSEL_MASK, },
{ 1800000, 100000, REG_LDO8_ON_VSEL, REG_LDO8_SLP_VSEL, NA, RK808_LDO_VSEL_MASK, },
};
static const struct rk8xx_reg_info rk816_ldo[] = {
{ 800000, 100000, REG_LDO1_ON_VSEL, REG_LDO1_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
{ 800000, 100000, REG_LDO2_ON_VSEL, REG_LDO2_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
{ 800000, 100000, REG_LDO3_ON_VSEL, REG_LDO3_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
{ 800000, 100000, REG_LDO4_ON_VSEL, REG_LDO4_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
{ 800000, 100000, REG_LDO5_ON_VSEL, REG_LDO5_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
{ 800000, 100000, REG_LDO6_ON_VSEL, REG_LDO6_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
};
static const struct rk8xx_reg_info rk817_ldo[] = {
/* ldo1 */
{ 600000, 25000, RK817_LDO_ON_VSEL(1), RK817_LDO_SLP_VSEL(1), NA, RK817_LDO_VSEL_MASK, 0x00, },
{ 3400000, 0, RK817_LDO_ON_VSEL(1), RK817_LDO_SLP_VSEL(1), NA, RK817_LDO_VSEL_MASK, 0x70, },
/* ldo2 */
{ 600000, 25000, RK817_LDO_ON_VSEL(2), RK817_LDO_SLP_VSEL(2), NA, RK817_LDO_VSEL_MASK, 0x00, },
{ 3400000, 0, RK817_LDO_ON_VSEL(2), RK817_LDO_SLP_VSEL(2), NA, RK817_LDO_VSEL_MASK, 0x70, },
/* ldo3 */
{ 600000, 25000, RK817_LDO_ON_VSEL(3), RK817_LDO_SLP_VSEL(3), NA, RK817_LDO_VSEL_MASK, 0x00, },
{ 3400000, 0, RK817_LDO_ON_VSEL(3), RK817_LDO_SLP_VSEL(3), NA, RK817_LDO_VSEL_MASK, 0x70, },
/* ldo4 */
{ 600000, 25000, RK817_LDO_ON_VSEL(4), RK817_LDO_SLP_VSEL(4), NA, RK817_LDO_VSEL_MASK, 0x00, },
{ 3400000, 0, RK817_LDO_ON_VSEL(4), RK817_LDO_SLP_VSEL(4), NA, RK817_LDO_VSEL_MASK, 0x70, },
/* ldo5 */
{ 600000, 25000, RK817_LDO_ON_VSEL(5), RK817_LDO_SLP_VSEL(5), NA, RK817_LDO_VSEL_MASK, 0x00, },
{ 3400000, 0, RK817_LDO_ON_VSEL(5), RK817_LDO_SLP_VSEL(5), NA, RK817_LDO_VSEL_MASK, 0x70, },
/* ldo6 */
{ 600000, 25000, RK817_LDO_ON_VSEL(6), RK817_LDO_SLP_VSEL(6), NA, RK817_LDO_VSEL_MASK, 0x00, },
{ 3400000, 0, RK817_LDO_ON_VSEL(6), RK817_LDO_SLP_VSEL(6), NA, RK817_LDO_VSEL_MASK, 0x70, },
/* ldo7 */
{ 600000, 25000, RK817_LDO_ON_VSEL(7), RK817_LDO_SLP_VSEL(7), NA, RK817_LDO_VSEL_MASK, 0x00, },
{ 3400000, 0, RK817_LDO_ON_VSEL(7), RK817_LDO_SLP_VSEL(7), NA, RK817_LDO_VSEL_MASK, 0x70, },
/* ldo8 */
{ 600000, 25000, RK817_LDO_ON_VSEL(8), RK817_LDO_SLP_VSEL(8), NA, RK817_LDO_VSEL_MASK, 0x00, },
{ 3400000, 0, RK817_LDO_ON_VSEL(8), RK817_LDO_SLP_VSEL(8), NA, RK817_LDO_VSEL_MASK, 0x70, },
/* ldo9 */
{ 600000, 25000, RK817_LDO_ON_VSEL(9), RK817_LDO_SLP_VSEL(9), NA, RK817_LDO_VSEL_MASK, 0x00, },
{ 3400000, 0, RK817_LDO_ON_VSEL(9), RK817_LDO_SLP_VSEL(9), NA, RK817_LDO_VSEL_MASK, 0x70, },
};
static const struct rk8xx_reg_info rk818_ldo[] = {
{ 1800000, 100000, REG_LDO1_ON_VSEL, REG_LDO1_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
{ 1800000, 100000, REG_LDO2_ON_VSEL, REG_LDO2_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
{ 800000, 100000, REG_LDO3_ON_VSEL, REG_LDO3_SLP_VSEL, NA, RK818_LDO3_ON_VSEL_MASK, },
{ 1800000, 100000, REG_LDO4_ON_VSEL, REG_LDO4_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
{ 1800000, 100000, REG_LDO5_ON_VSEL, REG_LDO5_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
{ 800000, 100000, REG_LDO6_ON_VSEL, REG_LDO6_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
{ 800000, 100000, REG_LDO7_ON_VSEL, REG_LDO7_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
{ 1800000, 100000, REG_LDO8_ON_VSEL, REG_LDO8_SLP_VSEL, NA, RK818_LDO_VSEL_MASK, },
};
#endif
static const u16 rk818_chrg_cur_input_array[] = {
450, 800, 850, 1000, 1250, 1500, 1750, 2000, 2250, 2500, 2750, 3000
};
static const uint rk818_chrg_shutdown_vsel_array[] = {
2780000, 2850000, 2920000, 2990000, 3060000, 3130000, 3190000, 3260000
};
static const struct rk8xx_reg_info *get_buck_reg(struct udevice *pmic,
int num, int uvolt)
{
struct rk8xx_priv *priv = dev_get_priv(pmic);
switch (priv->variant) {
case RK805_ID:
case RK816_ID:
switch (num) {
case 0:
case 1:
if (uvolt <= 1450000)
return &rk816_buck[num * 3 + 0];
else if (uvolt <= 2200000)
return &rk816_buck[num * 3 + 1];
else
return &rk816_buck[num * 3 + 2];
default:
return &rk816_buck[num + 4];
}
case RK809_ID:
case RK817_ID:
switch (num) {
case 0 ... 2:
if (uvolt < 1500000)
return &rk817_buck[num * 3 + 0];
else if (uvolt < 2400000)
return &rk817_buck[num * 3 + 1];
else
return &rk817_buck[num * 3 + 2];
case 3:
if (uvolt < 1500000)
return &rk817_buck[num * 3 + 0];
else if (uvolt < 3400000)
return &rk817_buck[num * 3 + 1];
else
return &rk817_buck[num * 3 + 2];
/* BUCK5 for RK809 */
default:
if (uvolt < 1800000)
return &rk809_buck5[0];
else if (uvolt < 2800000)
return &rk809_buck5[1];
else if (uvolt < 3300000)
return &rk809_buck5[2];
else
return &rk809_buck5[3];
}
case RK818_ID:
return &rk818_buck[num];
default:
return &rk808_buck[num];
}
}
static int _buck_set_value(struct udevice *pmic, int buck, int uvolt)
{
const struct rk8xx_reg_info *info = get_buck_reg(pmic, buck, uvolt);
struct rk8xx_priv *priv = dev_get_priv(pmic);
int mask = info->vsel_mask;
int val;
if (info->vsel_reg == NA)
return -ENOSYS;
if (info->step_uv == 0) /* Fixed voltage */
val = info->min_sel;
else
val = ((uvolt - info->min_uv) / info->step_uv) + info->min_sel;
debug("%s: volt=%d, buck=%d, reg=0x%x, mask=0x%x, val=0x%x\n",
__func__, uvolt, buck + 1, info->vsel_reg, mask, val);
if (priv->variant == RK816_ID) {
pmic_clrsetbits(pmic, info->vsel_reg, mask, val);
return pmic_clrsetbits(pmic, RK816_REG_DCDC_EN2,
1 << 7, 1 << 7);
} else {
return pmic_clrsetbits(pmic, info->vsel_reg, mask, val);
}
}
static int _buck_set_enable(struct udevice *pmic, int buck, bool enable)
{
uint mask, value, en_reg;
int ret = 0;
struct rk8xx_priv *priv = dev_get_priv(pmic);
switch (priv->variant) {
case RK805_ID:
case RK816_ID:
if (buck >= 4) {
buck -= 4;
en_reg = RK816_REG_DCDC_EN2;
} else {
en_reg = RK816_REG_DCDC_EN1;
}
if (enable)
value = ((1 << buck) | (1 << (buck + 4)));
else
value = ((0 << buck) | (1 << (buck + 4)));
ret = pmic_reg_write(pmic, en_reg, value);
break;
case RK808_ID:
case RK818_ID:
mask = 1 << buck;
if (enable) {
ret = pmic_clrsetbits(pmic, REG_DCDC_ILMAX,
0, 3 << (buck * 2));
if (ret)
return ret;
}
ret = pmic_clrsetbits(pmic, REG_DCDC_EN, mask,
enable ? mask : 0);
break;
case RK809_ID:
case RK817_ID:
if (buck < 4) {
if (enable)
value = ((1 << buck) | (1 << (buck + 4)));
else
value = ((0 << buck) | (1 << (buck + 4)));
ret = pmic_reg_write(pmic, RK817_POWER_EN(0), value);
/* BUCK5 for RK809 */
} else {
if (enable)
value = ((1 << 1) | (1 << 5));
else
value = ((0 << 1) | (1 << 5));
ret = pmic_reg_write(pmic, RK817_POWER_EN(3), value);
}
break;
default:
ret = -EINVAL;
}
return ret;
}
#ifdef ENABLE_DRIVER
static int _buck_set_suspend_value(struct udevice *pmic, int buck, int uvolt)
{
const struct rk8xx_reg_info *info = get_buck_reg(pmic, buck, uvolt);
int mask = info->vsel_mask;
int val;
if (info->vsel_sleep_reg == NA)
return -ENOSYS;
if (info->step_uv == 0)
val = info->min_sel;
else
val = ((uvolt - info->min_uv) / info->step_uv) + info->min_sel;
debug("%s: volt=%d, buck=%d, reg=0x%x, mask=0x%x, val=0x%x\n",
__func__, uvolt, buck + 1, info->vsel_sleep_reg, mask, val);
return pmic_clrsetbits(pmic, info->vsel_sleep_reg, mask, val);
}
static int _buck_get_enable(struct udevice *pmic, int buck)
{
struct rk8xx_priv *priv = dev_get_priv(pmic);
uint mask = 0;
int ret = 0;
switch (priv->variant) {
case RK805_ID:
case RK816_ID:
if (buck >= 4) {
mask = 1 << (buck - 4);
ret = pmic_reg_read(pmic, RK816_REG_DCDC_EN2);
} else {
mask = 1 << buck;
ret = pmic_reg_read(pmic, RK816_REG_DCDC_EN1);
}
break;
case RK808_ID:
case RK818_ID:
mask = 1 << buck;
ret = pmic_reg_read(pmic, REG_DCDC_EN);
if (ret < 0)
return ret;
break;
case RK809_ID:
case RK817_ID:
if (buck < 4) {
mask = 1 << buck;
ret = pmic_reg_read(pmic, RK817_POWER_EN(0));
/* BUCK5 for RK809 */
} else {
mask = 1 << 1;
ret = pmic_reg_read(pmic, RK817_POWER_EN(3));
}
break;
}
if (ret < 0)
return ret;
return ret & mask ? true : false;
}
static int _buck_set_suspend_enable(struct udevice *pmic, int buck, bool enable)
{
uint mask = 0;
int ret;
struct rk8xx_priv *priv = dev_get_priv(pmic);
switch (priv->variant) {
case RK805_ID:
case RK816_ID:
mask = 1 << buck;
ret = pmic_clrsetbits(pmic, RK816_REG_DCDC_SLP_EN, mask,
enable ? mask : 0);
break;
case RK808_ID:
case RK818_ID:
mask = 1 << buck;
ret = pmic_clrsetbits(pmic, REG_SLEEP_SET_OFF1, mask,
enable ? 0 : mask);
break;
case RK809_ID:
case RK817_ID:
if (buck < 4)
mask = 1 << buck;
else
mask = 1 << 5; /* BUCK5 for RK809 */
ret = pmic_clrsetbits(pmic, RK817_POWER_SLP_EN(0), mask,
enable ? mask : 0);
break;
default:
ret = -EINVAL;
}
return ret;
}
static int _buck_get_suspend_enable(struct udevice *pmic, int buck)
{
struct rk8xx_priv *priv = dev_get_priv(pmic);
int ret, val;
uint mask = 0;
switch (priv->variant) {
case RK805_ID:
case RK816_ID:
mask = 1 << buck;
val = pmic_reg_read(pmic, RK816_REG_DCDC_SLP_EN);
if (val < 0)
return val;
ret = val & mask ? 1 : 0;
break;
case RK808_ID:
case RK818_ID:
mask = 1 << buck;
val = pmic_reg_read(pmic, REG_SLEEP_SET_OFF1);
if (val < 0)
return val;
ret = val & mask ? 0 : 1;
break;
case RK809_ID:
case RK817_ID:
if (buck < 4)
mask = 1 << buck;
else
mask = 1 << 5; /* BUCK5 for RK809 */
val = pmic_reg_read(pmic, RK817_POWER_SLP_EN(0));
if (val < 0)
return val;
ret = val & mask ? 1 : 0;
break;
default:
ret = -EINVAL;
}
return ret;
}
static const struct rk8xx_reg_info *get_ldo_reg(struct udevice *pmic,
int num, int uvolt)
{
struct rk8xx_priv *priv = dev_get_priv(pmic);
switch (priv->variant) {
case RK805_ID:
case RK816_ID:
return &rk816_ldo[num];
case RK809_ID:
case RK817_ID:
if (uvolt < 3400000)
return &rk817_ldo[num * 2 + 0];
else
return &rk817_ldo[num * 2 + 1];
case RK818_ID:
return &rk818_ldo[num];
default:
return &rk808_ldo[num];
}
}
static int _ldo_get_enable(struct udevice *pmic, int ldo)
{
struct rk8xx_priv *priv = dev_get_priv(pmic);
uint mask = 0;
int ret = 0;
switch (priv->variant) {
case RK805_ID:
case RK816_ID:
if (ldo >= 4) {
mask = 1 << (ldo - 4);
ret = pmic_reg_read(pmic, RK816_REG_LDO_EN2);
} else {
mask = 1 << ldo;
ret = pmic_reg_read(pmic, RK816_REG_LDO_EN1);
}
break;
case RK808_ID:
case RK818_ID:
mask = 1 << ldo;
ret = pmic_reg_read(pmic, REG_LDO_EN);
if (ret < 0)
return ret;
break;
case RK809_ID:
case RK817_ID:
if (ldo < 4) {
mask = 1 << ldo;
ret = pmic_reg_read(pmic, RK817_POWER_EN(1));
} else if (ldo < 8) {
mask = 1 << (ldo - 4);
ret = pmic_reg_read(pmic, RK817_POWER_EN(2));
} else if (ldo == 8) {
mask = 1 << 0;
ret = pmic_reg_read(pmic, RK817_POWER_EN(3));
} else {
return false;
}
break;
}
if (ret < 0)
return ret;
return ret & mask ? true : false;
}
static int _ldo_set_enable(struct udevice *pmic, int ldo, bool enable)
{
struct rk8xx_priv *priv = dev_get_priv(pmic);
uint mask, value, en_reg;
int ret = 0;
switch (priv->variant) {
case RK805_ID:
case RK816_ID:
if (ldo >= 4) {
ldo -= 4;
en_reg = RK816_REG_LDO_EN2;
} else {
en_reg = RK816_REG_LDO_EN1;
}
if (enable)
value = ((1 << ldo) | (1 << (ldo + 4)));
else
value = ((0 << ldo) | (1 << (ldo + 4)));
ret = pmic_reg_write(pmic, en_reg, value);
break;
case RK808_ID:
case RK818_ID:
mask = 1 << ldo;
ret = pmic_clrsetbits(pmic, REG_LDO_EN, mask,
enable ? mask : 0);
break;
case RK809_ID:
case RK817_ID:
if (ldo < 4) {
en_reg = RK817_POWER_EN(1);
} else if (ldo < 8) {
ldo -= 4;
en_reg = RK817_POWER_EN(2);
} else if (ldo == 8) {
ldo = 0; /* BIT 0 */
en_reg = RK817_POWER_EN(3);
} else {
return -EINVAL;
}
if (enable)
value = ((1 << ldo) | (1 << (ldo + 4)));
else
value = ((0 << ldo) | (1 << (ldo + 4)));
ret = pmic_reg_write(pmic, en_reg, value);
break;
}
return ret;
}
static int _ldo_set_suspend_enable(struct udevice *pmic, int ldo, bool enable)
{
struct rk8xx_priv *priv = dev_get_priv(pmic);
uint mask;
int ret = 0;
switch (priv->variant) {
case RK805_ID:
case RK816_ID:
mask = 1 << ldo;
ret = pmic_clrsetbits(pmic, RK816_REG_LDO_SLP_EN, mask,
enable ? mask : 0);
break;
case RK808_ID:
case RK818_ID:
mask = 1 << ldo;
ret = pmic_clrsetbits(pmic, REG_SLEEP_SET_OFF2, mask,
enable ? 0 : mask);
break;
case RK809_ID:
case RK817_ID:
if (ldo == 8) {
mask = 1 << 4; /* LDO9 */
ret = pmic_clrsetbits(pmic, RK817_POWER_SLP_EN(0), mask,
enable ? mask : 0);
} else {
mask = 1 << ldo;
ret = pmic_clrsetbits(pmic, RK817_POWER_SLP_EN(1), mask,
enable ? mask : 0);
}
break;
}
return ret;
}
static int _ldo_get_suspend_enable(struct udevice *pmic, int ldo)
{
struct rk8xx_priv *priv = dev_get_priv(pmic);
int val, ret = 0;
uint mask;
switch (priv->variant) {
case RK805_ID:
case RK816_ID:
mask = 1 << ldo;
val = pmic_reg_read(pmic, RK816_REG_LDO_SLP_EN);
if (val < 0)
return val;
ret = val & mask ? 1 : 0;
break;
case RK808_ID:
case RK818_ID:
mask = 1 << ldo;
val = pmic_reg_read(pmic, REG_SLEEP_SET_OFF2);
if (val < 0)
return val;
ret = val & mask ? 0 : 1;
break;
case RK809_ID:
case RK817_ID:
if (ldo == 8) {
mask = 1 << 4; /* LDO9 */
val = pmic_reg_read(pmic, RK817_POWER_SLP_EN(0));
if (val < 0)
return val;
ret = val & mask ? 1 : 0;
} else {
mask = 1 << ldo;
val = pmic_reg_read(pmic, RK817_POWER_SLP_EN(1));
if (val < 0)
return val;
ret = val & mask ? 1 : 0;
}
break;
}
return ret;
}
static int buck_get_value(struct udevice *dev)
{
int buck = dev->driver_data - 1;
/* We assume level-1 voltage is enough for usage in U-Boot */
const struct rk8xx_reg_info *info = get_buck_reg(dev->parent, buck, 0);
int mask = info->vsel_mask;
int ret, val;
if (info->vsel_reg == NA)
return -ENOSYS;
ret = pmic_reg_read(dev->parent, info->vsel_reg);
if (ret < 0)
return ret;
val = ret & mask;
return info->min_uv + val * info->step_uv;
}
static int buck_set_value(struct udevice *dev, int uvolt)
{
int buck = dev->driver_data - 1;
return _buck_set_value(dev->parent, buck, uvolt);
}
static int buck_get_suspend_value(struct udevice *dev)
{
int buck = dev->driver_data - 1;
/* We assume level-1 voltage is enough for usage in U-Boot */
const struct rk8xx_reg_info *info = get_buck_reg(dev->parent, buck, 0);
int mask = info->vsel_mask;
int ret, val;
if (info->vsel_sleep_reg == NA)
return -ENOSYS;
ret = pmic_reg_read(dev->parent, info->vsel_sleep_reg);
if (ret < 0)
return ret;
val = ret & mask;
return info->min_uv + val * info->step_uv;
}
static int buck_set_suspend_value(struct udevice *dev, int uvolt)
{
int buck = dev->driver_data - 1;
return _buck_set_suspend_value(dev->parent, buck, uvolt);
}
static int buck_set_enable(struct udevice *dev, bool enable)
{
int buck = dev->driver_data - 1;
return _buck_set_enable(dev->parent, buck, enable);
}
static int buck_set_suspend_enable(struct udevice *dev, bool enable)
{
int buck = dev->driver_data - 1;
return _buck_set_suspend_enable(dev->parent, buck, enable);
}
static int buck_get_suspend_enable(struct udevice *dev)
{
int buck = dev->driver_data - 1;
return _buck_get_suspend_enable(dev->parent, buck);
}
static int buck_get_enable(struct udevice *dev)
{
int buck = dev->driver_data - 1;
return _buck_get_enable(dev->parent, buck);
}
static int ldo_get_value(struct udevice *dev)
{
int ldo = dev->driver_data - 1;
const struct rk8xx_reg_info *info = get_ldo_reg(dev->parent, ldo, 0);
int mask = info->vsel_mask;
int ret, val;
if (info->vsel_reg == NA)
return -ENOSYS;
ret = pmic_reg_read(dev->parent, info->vsel_reg);
if (ret < 0)
return ret;
val = ret & mask;
return info->min_uv + val * info->step_uv;
}
static int ldo_set_value(struct udevice *dev, int uvolt)
{
int ldo = dev->driver_data - 1;
const struct rk8xx_reg_info *info = get_ldo_reg(dev->parent, ldo, uvolt);
int mask = info->vsel_mask;
int val;
if (info->vsel_reg == NA)
return -ENOSYS;
if (info->step_uv == 0)
val = info->min_sel;
else
val = ((uvolt - info->min_uv) / info->step_uv) + info->min_sel;
debug("%s: volt=%d, ldo=%d, reg=0x%x, mask=0x%x, val=0x%x\n",
__func__, uvolt, ldo + 1, info->vsel_reg, mask, val);
return pmic_clrsetbits(dev->parent, info->vsel_reg, mask, val);
}
static int ldo_set_suspend_value(struct udevice *dev, int uvolt)
{
int ldo = dev->driver_data - 1;
const struct rk8xx_reg_info *info = get_ldo_reg(dev->parent, ldo, uvolt);
int mask = info->vsel_mask;
int val;
if (info->vsel_sleep_reg == NA)
return -ENOSYS;
if (info->step_uv == 0)
val = info->min_sel;
else
val = ((uvolt - info->min_uv) / info->step_uv) + info->min_sel;
debug("%s: volt=%d, ldo=%d, reg=0x%x, mask=0x%x, val=0x%x\n",
__func__, uvolt, ldo + 1, info->vsel_sleep_reg, mask, val);
return pmic_clrsetbits(dev->parent, info->vsel_sleep_reg, mask, val);
}
static int ldo_get_suspend_value(struct udevice *dev)
{
int ldo = dev->driver_data - 1;
const struct rk8xx_reg_info *info = get_ldo_reg(dev->parent, ldo, 0);
int mask = info->vsel_mask;
int val, ret;
if (info->vsel_sleep_reg == NA)
return -ENOSYS;
ret = pmic_reg_read(dev->parent, info->vsel_sleep_reg);
if (ret < 0)
return ret;
val = ret & mask;
return info->min_uv + val * info->step_uv;
}
static int ldo_set_enable(struct udevice *dev, bool enable)
{
int ldo = dev->driver_data - 1;
return _ldo_set_enable(dev->parent, ldo, enable);
}
static int ldo_set_suspend_enable(struct udevice *dev, bool enable)
{
int ldo = dev->driver_data - 1;
return _ldo_set_suspend_enable(dev->parent, ldo, enable);
}
static int ldo_get_suspend_enable(struct udevice *dev)
{
int ldo = dev->driver_data - 1;
return _ldo_get_suspend_enable(dev->parent, ldo);
}
static int ldo_get_enable(struct udevice *dev)
{
int ldo = dev->driver_data - 1;
return _ldo_get_enable(dev->parent, ldo);
}
static int switch_set_enable(struct udevice *dev, bool enable)
{
struct rk8xx_priv *priv = dev_get_priv(dev->parent);
int ret = 0, sw = dev->driver_data - 1;
uint mask = 0;
switch (priv->variant) {
case RK808_ID:
mask = 1 << (sw + 5);
ret = pmic_clrsetbits(dev->parent, REG_DCDC_EN, mask,
enable ? mask : 0);
break;
case RK809_ID:
mask = (1 << (sw + 2)) | (1 << (sw + 6));
ret = pmic_clrsetbits(dev->parent, RK817_POWER_EN(3), mask,
enable ? mask : 0);
break;
case RK818_ID:
mask = 1 << 6;
ret = pmic_clrsetbits(dev->parent, REG_DCDC_EN, mask,
enable ? mask : 0);
break;
}
debug("%s: switch%d, enable=%d, mask=0x%x\n",
__func__, sw + 1, enable, mask);
return ret;
}
static int switch_get_enable(struct udevice *dev)
{
struct rk8xx_priv *priv = dev_get_priv(dev->parent);
int ret = 0, sw = dev->driver_data - 1;
uint mask = 0;
switch (priv->variant) {
case RK808_ID:
mask = 1 << (sw + 5);
ret = pmic_reg_read(dev->parent, REG_DCDC_EN);
break;
case RK809_ID:
mask = 1 << (sw + 2);
ret = pmic_reg_read(dev->parent, RK817_POWER_EN(3));
break;
case RK818_ID:
mask = 1 << 6;
ret = pmic_reg_read(dev->parent, REG_DCDC_EN);
break;
}
if (ret < 0)
return ret;
return ret & mask ? true : false;
}
static int switch_set_suspend_value(struct udevice *dev, int uvolt)
{
return 0;
}
static int switch_get_suspend_value(struct udevice *dev)
{
return 0;
}
static int switch_set_suspend_enable(struct udevice *dev, bool enable)
{
struct rk8xx_priv *priv = dev_get_priv(dev->parent);
int ret = 0, sw = dev->driver_data - 1;
uint mask = 0;
switch (priv->variant) {
case RK808_ID:
mask = 1 << (sw + 5);
ret = pmic_clrsetbits(dev->parent, REG_SLEEP_SET_OFF1, mask,
enable ? 0 : mask);
break;
case RK809_ID:
mask = 1 << (sw + 6);
ret = pmic_clrsetbits(dev->parent, RK817_POWER_SLP_EN(0), mask,
enable ? mask : 0);
break;
case RK818_ID:
mask = 1 << 6;
ret = pmic_clrsetbits(dev->parent, REG_SLEEP_SET_OFF1, mask,
enable ? 0 : mask);
break;
}
debug("%s: switch%d, enable=%d, mask=0x%x\n",
__func__, sw + 1, enable, mask);
return ret;
}
static int switch_get_suspend_enable(struct udevice *dev)
{
struct rk8xx_priv *priv = dev_get_priv(dev->parent);
int val, ret = 0, sw = dev->driver_data - 1;
uint mask = 0;
switch (priv->variant) {
case RK808_ID:
mask = 1 << (sw + 5);
val = pmic_reg_read(dev->parent, REG_SLEEP_SET_OFF1);
if (val < 0)
return val;
ret = val & mask ? 0 : 1;
break;
case RK809_ID:
mask = 1 << (sw + 6);
val = pmic_reg_read(dev->parent, RK817_POWER_SLP_EN(0));
if (val < 0)
return val;
ret = val & mask ? 1 : 0;
break;
case RK818_ID:
mask = 1 << 6;
val = pmic_reg_read(dev->parent, REG_SLEEP_SET_OFF1);
if (val < 0)
return val;
ret = val & mask ? 0 : 1;
break;
}
return ret;
}
/*
* RK8xx switch does not need to set the voltage,
* but if dts set regulator-min-microvolt/regulator-max-microvolt,
* will cause regulator set value fail and not to enable this switch.
* So add an empty function to return success.
*/
static int switch_get_value(struct udevice *dev)
{
return 0;
}
static int switch_set_value(struct udevice *dev, int uvolt)
{
return 0;
}
static int rk8xx_buck_probe(struct udevice *dev)
{
struct dm_regulator_uclass_plat *uc_pdata;
uc_pdata = dev_get_uclass_plat(dev);
uc_pdata->type = REGULATOR_TYPE_BUCK;
uc_pdata->mode_count = 0;
return 0;
}
static int rk8xx_ldo_probe(struct udevice *dev)
{
struct dm_regulator_uclass_plat *uc_pdata;
uc_pdata = dev_get_uclass_plat(dev);
uc_pdata->type = REGULATOR_TYPE_LDO;
uc_pdata->mode_count = 0;
return 0;
}
static int rk8xx_switch_probe(struct udevice *dev)
{
struct dm_regulator_uclass_plat *uc_pdata;
uc_pdata = dev_get_uclass_plat(dev);
uc_pdata->type = REGULATOR_TYPE_FIXED;
uc_pdata->mode_count = 0;
return 0;
}
static const struct dm_regulator_ops rk8xx_buck_ops = {
.get_value = buck_get_value,
.set_value = buck_set_value,
.set_suspend_value = buck_set_suspend_value,
.get_suspend_value = buck_get_suspend_value,
.get_enable = buck_get_enable,
.set_enable = buck_set_enable,
.set_suspend_enable = buck_set_suspend_enable,
.get_suspend_enable = buck_get_suspend_enable,
};
static const struct dm_regulator_ops rk8xx_ldo_ops = {
.get_value = ldo_get_value,
.set_value = ldo_set_value,
.set_suspend_value = ldo_set_suspend_value,
.get_suspend_value = ldo_get_suspend_value,
.get_enable = ldo_get_enable,
.set_enable = ldo_set_enable,
.set_suspend_enable = ldo_set_suspend_enable,
.get_suspend_enable = ldo_get_suspend_enable,
};
static const struct dm_regulator_ops rk8xx_switch_ops = {
.get_value = switch_get_value,
.set_value = switch_set_value,
.get_enable = switch_get_enable,
.set_enable = switch_set_enable,
.set_suspend_enable = switch_set_suspend_enable,
.get_suspend_enable = switch_get_suspend_enable,
.set_suspend_value = switch_set_suspend_value,
.get_suspend_value = switch_get_suspend_value,
};
U_BOOT_DRIVER(rk8xx_buck) = {
.name = "rk8xx_buck",
.id = UCLASS_REGULATOR,
.ops = &rk8xx_buck_ops,
.probe = rk8xx_buck_probe,
};
U_BOOT_DRIVER(rk8xx_ldo) = {
.name = "rk8xx_ldo",
.id = UCLASS_REGULATOR,
.ops = &rk8xx_ldo_ops,
.probe = rk8xx_ldo_probe,
};
U_BOOT_DRIVER(rk8xx_switch) = {
.name = "rk8xx_switch",
.id = UCLASS_REGULATOR,
.ops = &rk8xx_switch_ops,
.probe = rk8xx_switch_probe,
};
#endif
int rk8xx_spl_configure_buck(struct udevice *pmic, int buck, int uvolt)
{
int ret;
ret = _buck_set_value(pmic, buck, uvolt);
if (ret)
return ret;
return _buck_set_enable(pmic, buck, true);
}
int rk818_spl_configure_usb_input_current(struct udevice *pmic, int current_ma)
{
uint i;
for (i = 0; i < ARRAY_SIZE(rk818_chrg_cur_input_array); i++)
if (current_ma <= rk818_chrg_cur_input_array[i])
break;
return pmic_clrsetbits(pmic, REG_USB_CTRL, RK818_USB_ILIM_SEL_MASK, i);
}
int rk818_spl_configure_usb_chrg_shutdown(struct udevice *pmic, int uvolt)
{
uint i;
for (i = 0; i < ARRAY_SIZE(rk818_chrg_shutdown_vsel_array); i++)
if (uvolt <= rk818_chrg_shutdown_vsel_array[i])
break;
return pmic_clrsetbits(pmic, REG_USB_CTRL, RK818_USB_CHG_SD_VSEL_MASK,
i);
}
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