mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
1d624a4f08
Move the register helpers used to access the registers via p2wi resp. rsb bus on the otherwise identical axp221 and axp223 pmics to a separate file, so that they can be used by the upcoming standalone axp gpio driver too. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
386 lines
7.5 KiB
C
386 lines
7.5 KiB
C
/*
|
|
* AXP221 and AXP223 driver
|
|
*
|
|
* IMPORTANT when making changes to this file check that the registers
|
|
* used are the same for the axp221 and axp223.
|
|
*
|
|
* (C) Copyright 2014 Hans de Goede <hdegoede@redhat.com>
|
|
* (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <errno.h>
|
|
#include <asm/arch/gpio.h>
|
|
#include <asm/arch/pmic_bus.h>
|
|
#include <axp221.h>
|
|
|
|
static u8 axp221_mvolt_to_cfg(int mvolt, int min, int max, int div)
|
|
{
|
|
if (mvolt < min)
|
|
mvolt = min;
|
|
else if (mvolt > max)
|
|
mvolt = max;
|
|
|
|
return (mvolt - min) / div;
|
|
}
|
|
|
|
int axp221_set_dcdc1(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100);
|
|
|
|
if (mvolt == 0)
|
|
return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_DCDC1_EN);
|
|
|
|
ret = pmic_bus_write(AXP221_DCDC1_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
|
|
AXP221_OUTPUT_CTRL2_DCDC1SW_EN);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_DCDC1_EN);
|
|
}
|
|
|
|
int axp221_set_dcdc2(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
|
|
|
|
if (mvolt == 0)
|
|
return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_DCDC2_EN);
|
|
|
|
ret = pmic_bus_write(AXP221_DCDC2_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_DCDC2_EN);
|
|
}
|
|
|
|
int axp221_set_dcdc3(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1860, 20);
|
|
|
|
if (mvolt == 0)
|
|
return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_DCDC3_EN);
|
|
|
|
ret = pmic_bus_write(AXP221_DCDC3_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_DCDC3_EN);
|
|
}
|
|
|
|
int axp221_set_dcdc4(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
|
|
|
|
if (mvolt == 0)
|
|
return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_DCDC4_EN);
|
|
|
|
ret = pmic_bus_write(AXP221_DCDC4_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_DCDC4_EN);
|
|
}
|
|
|
|
int axp221_set_dcdc5(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 1000, 2550, 50);
|
|
|
|
if (mvolt == 0)
|
|
return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_DCDC5_EN);
|
|
|
|
ret = pmic_bus_write(AXP221_DCDC5_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_DCDC5_EN);
|
|
}
|
|
|
|
int axp221_set_dldo1(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
|
|
if (mvolt == 0)
|
|
return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2,
|
|
AXP221_OUTPUT_CTRL2_DLDO1_EN);
|
|
|
|
ret = pmic_bus_write(AXP221_DLDO1_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
|
|
AXP221_OUTPUT_CTRL2_DLDO1_EN);
|
|
}
|
|
|
|
int axp221_set_dldo2(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
|
|
if (mvolt == 0)
|
|
return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2,
|
|
AXP221_OUTPUT_CTRL2_DLDO2_EN);
|
|
|
|
ret = pmic_bus_write(AXP221_DLDO2_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
|
|
AXP221_OUTPUT_CTRL2_DLDO2_EN);
|
|
}
|
|
|
|
int axp221_set_dldo3(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
|
|
if (mvolt == 0)
|
|
return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2,
|
|
AXP221_OUTPUT_CTRL2_DLDO3_EN);
|
|
|
|
ret = pmic_bus_write(AXP221_DLDO3_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
|
|
AXP221_OUTPUT_CTRL2_DLDO3_EN);
|
|
}
|
|
|
|
int axp221_set_dldo4(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
|
|
if (mvolt == 0)
|
|
return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2,
|
|
AXP221_OUTPUT_CTRL2_DLDO4_EN);
|
|
|
|
ret = pmic_bus_write(AXP221_DLDO4_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
|
|
AXP221_OUTPUT_CTRL2_DLDO4_EN);
|
|
}
|
|
|
|
int axp221_set_aldo1(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
|
|
if (mvolt == 0)
|
|
return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_ALDO1_EN);
|
|
|
|
ret = pmic_bus_write(AXP221_ALDO1_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_ALDO1_EN);
|
|
}
|
|
|
|
int axp221_set_aldo2(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
|
|
if (mvolt == 0)
|
|
return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_ALDO2_EN);
|
|
|
|
ret = pmic_bus_write(AXP221_ALDO2_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
|
|
AXP221_OUTPUT_CTRL1_ALDO2_EN);
|
|
}
|
|
|
|
int axp221_set_aldo3(unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
|
|
if (mvolt == 0)
|
|
return pmic_bus_clrbits(AXP221_OUTPUT_CTRL3,
|
|
AXP221_OUTPUT_CTRL3_ALDO3_EN);
|
|
|
|
ret = pmic_bus_write(AXP221_ALDO3_CTRL, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return pmic_bus_setbits(AXP221_OUTPUT_CTRL3,
|
|
AXP221_OUTPUT_CTRL3_ALDO3_EN);
|
|
}
|
|
|
|
int axp221_set_eldo(int eldo_num, unsigned int mvolt)
|
|
{
|
|
int ret;
|
|
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
|
|
u8 addr, bits;
|
|
|
|
switch (eldo_num) {
|
|
case 3:
|
|
addr = AXP221_ELDO3_CTRL;
|
|
bits = AXP221_OUTPUT_CTRL2_ELDO3_EN;
|
|
break;
|
|
case 2:
|
|
addr = AXP221_ELDO2_CTRL;
|
|
bits = AXP221_OUTPUT_CTRL2_ELDO2_EN;
|
|
break;
|
|
case 1:
|
|
addr = AXP221_ELDO1_CTRL;
|
|
bits = AXP221_OUTPUT_CTRL2_ELDO1_EN;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (mvolt == 0)
|
|
return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2, bits);
|
|
|
|
ret = pmic_bus_write(addr, cfg);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return pmic_bus_setbits(AXP221_OUTPUT_CTRL2, bits);
|
|
}
|
|
|
|
int axp221_init(void)
|
|
{
|
|
/* This cannot be 0 because it is used in SPL before BSS is ready */
|
|
static int needs_init = 1;
|
|
u8 axp_chip_id;
|
|
int ret;
|
|
|
|
if (!needs_init)
|
|
return 0;
|
|
|
|
ret = pmic_bus_init();
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = pmic_bus_read(AXP221_CHIP_ID, &axp_chip_id);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (!(axp_chip_id == 0x6 || axp_chip_id == 0x7 || axp_chip_id == 0x17))
|
|
return -ENODEV;
|
|
|
|
needs_init = 0;
|
|
return 0;
|
|
}
|
|
|
|
int axp221_get_sid(unsigned int *sid)
|
|
{
|
|
u8 *dest = (u8 *)sid;
|
|
int i, ret;
|
|
|
|
ret = axp221_init();
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = pmic_bus_write(AXP221_PAGE, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
ret = pmic_bus_read(AXP221_SID + i, &dest[i]);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
pmic_bus_write(AXP221_PAGE, 0);
|
|
|
|
for (i = 0; i < 4; i++)
|
|
sid[i] = be32_to_cpu(sid[i]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int axp_gpio_direction_input(struct udevice *dev, unsigned pin)
|
|
{
|
|
switch (pin) {
|
|
case SUNXI_GPIO_AXP0_VBUS_DETECT:
|
|
return 0;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
int axp_gpio_direction_output(struct udevice *dev, unsigned pin, int val)
|
|
{
|
|
int ret;
|
|
|
|
switch (pin) {
|
|
case SUNXI_GPIO_AXP0_VBUS_ENABLE:
|
|
ret = axp221_clrbits(AXP221_MISC_CTRL,
|
|
AXP221_MISC_CTRL_N_VBUSEN_FUNC);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return axp_gpio_set_value(dev, pin, val);
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
int axp_gpio_get_value(struct udevice *dev, unsigned pin)
|
|
{
|
|
int ret;
|
|
u8 val;
|
|
|
|
switch (pin) {
|
|
case SUNXI_GPIO_AXP0_VBUS_DETECT:
|
|
ret = pmic_bus_read(AXP221_POWER_STATUS, &val);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return !!(val & AXP221_POWER_STATUS_VBUS_AVAIL);
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
int axp_gpio_set_value(struct udevice *dev, unsigned pin, int val)
|
|
{
|
|
int ret;
|
|
|
|
switch (pin) {
|
|
case SUNXI_GPIO_AXP0_VBUS_ENABLE:
|
|
if (val)
|
|
ret = axp221_setbits(AXP221_VBUS_IPSOUT,
|
|
AXP221_VBUS_IPSOUT_DRIVEBUS);
|
|
else
|
|
ret = axp221_clrbits(AXP221_VBUS_IPSOUT,
|
|
AXP221_VBUS_IPSOUT_DRIVEBUS);
|
|
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|