This PMIC can be found on H616 boards and it's very similar to AXP805 and AXP806.
Reviewed-by: Andre Przywara andre.przywara@arm.com Reviewed-by: Jaehoon Chung jh80.chung@samsung.com Signed-off-by: Jernej Skrabec jernej.skrabec@siol.net --- arch/arm/mach-sunxi/pmic_bus.c | 6 +++ board/sunxi/board.c | 10 ++-- drivers/power/Kconfig | 13 +++++- drivers/power/Makefile | 1 + drivers/power/axp305.c | 83 ++++++++++++++++++++++++++++++++++ include/axp305.h | 17 +++++++ include/axp_pmic.h | 3 ++ 7 files changed, 129 insertions(+), 4 deletions(-) create mode 100644 drivers/power/axp305.c create mode 100644 include/axp305.h
diff --git a/arch/arm/mach-sunxi/pmic_bus.c b/arch/arm/mach-sunxi/pmic_bus.c index dea42de833f1..0394ce856448 100644 --- a/arch/arm/mach-sunxi/pmic_bus.c +++ b/arch/arm/mach-sunxi/pmic_bus.c @@ -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); diff --git a/board/sunxi/board.c b/board/sunxi/board.c index 77e464718846..40fdd5da0477 100644 --- a/board/sunxi/board.c +++ b/board/sunxi/board.c @@ -634,16 +634,18 @@ 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 @@ -656,8 +658,10 @@ 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 diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index 02050f6f3569..d17cf2d9112a 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -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" diff --git a/drivers/power/Makefile b/drivers/power/Makefile index 2dcc7bb99d02..0bef06920a7d 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -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 diff --git a/drivers/power/axp305.c b/drivers/power/axp305.c new file mode 100644 index 000000000000..0191e4d427e8 --- /dev/null +++ b/drivers/power/axp305.c @@ -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 diff --git a/include/axp305.h b/include/axp305.h new file mode 100644 index 000000000000..225c5040a322 --- /dev/null +++ b/include/axp305.h @@ -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) diff --git a/include/axp_pmic.h b/include/axp_pmic.h index 10091d0bb278..405044c3a32f 100644 --- a/include/axp_pmic.h +++ b/include/axp_pmic.h @@ -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