diff options
Diffstat (limited to 'drivers/sysreset')
| -rw-r--r-- | drivers/sysreset/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/sysreset/Makefile | 1 | ||||
| -rw-r--r-- | drivers/sysreset/sysreset_palmas.c | 52 |
3 files changed, 60 insertions, 0 deletions
diff --git a/drivers/sysreset/Kconfig b/drivers/sysreset/Kconfig index 659170d1568..0e52f996283 100644 --- a/drivers/sysreset/Kconfig +++ b/drivers/sysreset/Kconfig @@ -109,6 +109,13 @@ config SYSRESET_SPL_AT91 This enables the system reset driver support for Microchip/Atmel SoCs in SPL. +config SYSRESET_PALMAS + bool "Enable support for PALMAS System Reset" + depends on PMIC_PALMAS + select SYSRESET_CMD_POWEROFF if CMD_POWEROFF + help + Enable system power management functions found in PLAMAS PMIC family. + config SYSRESET_PSCI bool "Enable support for PSCI System Reset" depends on ARM_PSCI_FW diff --git a/drivers/sysreset/Makefile b/drivers/sysreset/Makefile index 0d96a204a95..c9f1c625aeb 100644 --- a/drivers/sysreset/Makefile +++ b/drivers/sysreset/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_$(SPL_TPL_)SYSRESET_MAX77663) += sysreset_max77663.o obj-$(CONFIG_SYSRESET_MPC83XX) += sysreset_mpc83xx.o obj-$(CONFIG_SYSRESET_MICROBLAZE) += sysreset_microblaze.o obj-$(CONFIG_SYSRESET_OCTEON) += sysreset_octeon.o +obj-$(CONFIG_$(SPL_TPL_)SYSRESET_PALMAS) += sysreset_palmas.o obj-$(CONFIG_SYSRESET_PSCI) += sysreset_psci.o obj-$(CONFIG_SYSRESET_SBI) += sysreset_sbi.o obj-$(CONFIG_SYSRESET_SOCFPGA) += sysreset_socfpga.o diff --git a/drivers/sysreset/sysreset_palmas.c b/drivers/sysreset/sysreset_palmas.c new file mode 100644 index 00000000000..9e3aa403488 --- /dev/null +++ b/drivers/sysreset/sysreset_palmas.c @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright(C) 2023 Svyatoslav Ryhel <clamor95@gmail.com> + */ + +#include <dm.h> +#include <i2c.h> +#include <errno.h> +#include <sysreset.h> +#include <power/pmic.h> +#include <power/palmas.h> + +static int palmas_sysreset_request(struct udevice *dev, + enum sysreset_t type) +{ + struct palmas_priv *priv = dev_get_priv(dev->parent); + int ret; + + /* + * Mask INT3 on second page which detects vbus + * or device will immediately turn on. + */ + ret = dm_i2c_reg_clrset(priv->chip2, PALMAS_INT3_MASK, + MASK_VBUS, MASK_VBUS); + if (ret < 0) + return ret; + + switch (type) { + case SYSRESET_POWER: + /* PALMAS: SW_RST > DEV_CTRL */ + pmic_reg_write(dev->parent, PALMAS_DEV_CTRL, SW_RST); + break; + case SYSRESET_POWER_OFF: + /* PALMAS: DEV_OFF > DEV_CTRL */ + pmic_reg_write(dev->parent, PALMAS_DEV_CTRL, DEV_OFF); + break; + default: + return -EPROTONOSUPPORT; + } + + return -EINPROGRESS; +} + +static struct sysreset_ops palmas_sysreset = { + .request = palmas_sysreset_request, +}; + +U_BOOT_DRIVER(sysreset_palmas) = { + .id = UCLASS_SYSRESET, + .name = PALMAS_RST_DRIVER, + .ops = &palmas_sysreset, +}; |