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sunxi: Add support for AXP305 PMIC

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This PMIC can be found on H616 boards and it's very similar to AXP805
and AXP806.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
This commit is contained in:
Jernej Skrabec 2021-01-11 21:11:33 +01:00 committed by Andre Przywara
parent e9ad1b8dc5
commit fbd37d8d28
7 changed files with 129 additions and 4 deletions
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6
arch/arm/mach-sunxi/pmic_bus.c
View file

@ -18,6 +18,8 @@
#define AXP209_I2C_ADDR 0x34
#define AXP305_I2C_ADDR 0x36
#define AXP221_CHIP_ADDR 0x68
#define AXP221_CTRL_ADDR 0x3e
#define AXP221_INIT_DATA 0x3e
@ -64,6 +66,8 @@ int pmic_bus_read(u8 reg, u8 *data)
return i2c_read(AXP152_I2C_ADDR, reg, 1, data, 1);
#elif defined CONFIG_AXP209_POWER
return i2c_read(AXP209_I2C_ADDR, reg, 1, data, 1);
#elif defined CONFIG_AXP305_POWER
return i2c_read(AXP305_I2C_ADDR, reg, 1, data, 1);
#elif defined CONFIG_AXP221_POWER || defined CONFIG_AXP809_POWER || defined CONFIG_AXP818_POWER
# ifdef CONFIG_MACH_SUN6I
return p2wi_read(reg, data);
@ -81,6 +85,8 @@ int pmic_bus_write(u8 reg, u8 data)
return i2c_write(AXP152_I2C_ADDR, reg, 1, &data, 1);
#elif defined CONFIG_AXP209_POWER
return i2c_write(AXP209_I2C_ADDR, reg, 1, &data, 1);
#elif defined CONFIG_AXP305_POWER
return i2c_write(AXP305_I2C_ADDR, reg, 1, &data, 1);
#elif defined CONFIG_AXP221_POWER || defined CONFIG_AXP809_POWER || defined CONFIG_AXP818_POWER
# ifdef CONFIG_MACH_SUN6I
return p2wi_write(reg, data);

10
board/sunxi/board.c
View file

@ -645,16 +645,18 @@ void sunxi_board_init(void)
#endif
#if defined CONFIG_AXP152_POWER || defined CONFIG_AXP209_POWER || \
defined CONFIG_AXP221_POWER || defined CONFIG_AXP809_POWER || \
defined CONFIG_AXP818_POWER
defined CONFIG_AXP221_POWER || defined CONFIG_AXP305_POWER || \
defined CONFIG_AXP809_POWER || defined CONFIG_AXP818_POWER
power_failed = axp_init();
#if defined CONFIG_AXP221_POWER || defined CONFIG_AXP809_POWER || \
defined CONFIG_AXP818_POWER
power_failed |= axp_set_dcdc1(CONFIG_AXP_DCDC1_VOLT);
#endif
#if !defined(CONFIG_AXP305_POWER)
power_failed |= axp_set_dcdc2(CONFIG_AXP_DCDC2_VOLT);
power_failed |= axp_set_dcdc3(CONFIG_AXP_DCDC3_VOLT);
#endif
#if !defined(CONFIG_AXP209_POWER) && !defined(CONFIG_AXP818_POWER)
power_failed |= axp_set_dcdc4(CONFIG_AXP_DCDC4_VOLT);
#endif
@ -667,8 +669,10 @@ void sunxi_board_init(void)
defined CONFIG_AXP818_POWER
power_failed |= axp_set_aldo1(CONFIG_AXP_ALDO1_VOLT);
#endif
#if !defined(CONFIG_AXP305_POWER)
power_failed |= axp_set_aldo2(CONFIG_AXP_ALDO2_VOLT);
#if !defined(CONFIG_AXP152_POWER)
#endif
#if !defined(CONFIG_AXP152_POWER) && !defined(CONFIG_AXP305_POWER)
power_failed |= axp_set_aldo3(CONFIG_AXP_ALDO3_VOLT);
#endif
#ifdef CONFIG_AXP209_POWER

13
drivers/power/Kconfig
View file

@ -48,6 +48,15 @@ config AXP221_POWER
Select this to enable support for the axp221/axp223 pmic found on most
A23 and A31 boards.
config AXP305_POWER
bool "axp305 pmic support"
depends on MACH_SUN50I_H616
select AXP_PMIC_BUS
select CMD_POWEROFF
---help---
Select this to enable support for the axp305 pmic found on most
H616 boards.
config AXP809_POWER
bool "axp809 pmic support"
depends on MACH_SUN9I
@ -127,11 +136,12 @@ config AXP_DCDC3_VOLT
config AXP_DCDC4_VOLT
int "axp pmic dcdc4 voltage"
depends on AXP152_POWER || AXP221_POWER || AXP809_POWER || AXP818_POWER
depends on AXP152_POWER || AXP221_POWER || AXP809_POWER || AXP818_POWER || AXP305_POWER
default 1250 if AXP152_POWER
default 1200 if MACH_SUN6I
default 0 if MACH_SUN8I
default 900 if MACH_SUN9I
default 1500 if AXP305_POWER
---help---
Set the voltage (mV) to program the axp pmic dcdc4 at, set to 0 to
disable dcdc4.
@ -140,6 +150,7 @@ config AXP_DCDC4_VOLT
On A23 / A33 boards dcdc4 is unused and should be disabled.
On A80 boards dcdc4 powers VDD-SYS, HDMI, USB OTG and should be 0.9V.
On A83T boards dcdc4 is used for VDD-GPU.
On H616 boards dcdcd is used for VCC-DRAM.
config AXP_DCDC5_VOLT
int "axp pmic dcdc5 voltage"

1
drivers/power/Makefile
View file

@ -6,6 +6,7 @@
obj-$(CONFIG_AXP152_POWER) += axp152.o
obj-$(CONFIG_AXP209_POWER) += axp209.o
obj-$(CONFIG_AXP221_POWER) += axp221.o
obj-$(CONFIG_AXP305_POWER) += axp305.o
obj-$(CONFIG_AXP809_POWER) += axp809.o
obj-$(CONFIG_AXP818_POWER) += axp818.o
obj-$(CONFIG_EXYNOS_TMU) += exynos-tmu.o

83
drivers/power/axp305.c Normal file
View file

@ -0,0 +1,83 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* AXP305 driver
*
* (C) Copyright 2020 Jernej Skrabec <jernej.skrabec@siol.net>
*
* Based on axp221.c
* (C) Copyright 2014 Hans de Goede <hdegoede@redhat.com>
* (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl>
*/
#include <common.h>
#include <command.h>
#include <errno.h>
#include <asm/arch/pmic_bus.h>
#include <axp_pmic.h>
#define AXP305_DCDC4_1600MV_OFFSET 46
static u8 axp305_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 axp_set_dcdc4(unsigned int mvolt)
{
int ret;
u8 cfg;
if (mvolt >= 1600)
cfg = AXP305_DCDC4_1600MV_OFFSET +
axp305_mvolt_to_cfg(mvolt, 1600, 3300, 100);
else
cfg = axp305_mvolt_to_cfg(mvolt, 600, 1500, 20);
if (mvolt == 0)
return pmic_bus_clrbits(AXP305_OUTPUT_CTRL1,
AXP305_OUTPUT_CTRL1_DCDCD_EN);
ret = pmic_bus_write(AXP305_DCDCD_VOLTAGE, cfg);
if (ret)
return ret;
return pmic_bus_setbits(AXP305_OUTPUT_CTRL1,
AXP305_OUTPUT_CTRL1_DCDCD_EN);
}
int axp_init(void)
{
u8 axp_chip_id;
int ret;
ret = pmic_bus_init();
if (ret)
return ret;
ret = pmic_bus_read(AXP305_CHIP_VERSION, &axp_chip_id);
if (ret)
return ret;
if ((axp_chip_id & AXP305_CHIP_VERSION_MASK) != 0x40)
return -ENODEV;
return ret;
}
#ifndef CONFIG_PSCI_RESET
int do_poweroff(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
pmic_bus_write(AXP305_SHUTDOWN, AXP305_POWEROFF);
/* infinite loop during shutdown */
while (1) {}
/* not reached */
return 0;
}
#endif

17
include/axp305.h Normal file
View file

@ -0,0 +1,17 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2020 Jernej Skrabec <jernej.skrabec@siol.net>
*/
enum axp305_reg {
AXP305_CHIP_VERSION = 0x3,
AXP305_OUTPUT_CTRL1 = 0x10,
AXP305_DCDCD_VOLTAGE = 0x15,
AXP305_SHUTDOWN = 0x32,
};
#define AXP305_CHIP_VERSION_MASK 0xcf
#define AXP305_OUTPUT_CTRL1_DCDCD_EN (1 << 3)
#define AXP305_POWEROFF (1 << 7)

3
include/axp_pmic.h
View file

@ -15,6 +15,9 @@
#ifdef CONFIG_AXP221_POWER
#include <axp221.h>
#endif
#ifdef CONFIG_AXP305_POWER
#include <axp305.h>
#endif
#ifdef CONFIG_AXP809_POWER
#include <axp809.h>
#endif