1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+ 2573a3811SMasahiro Yamada /* 3573a3811SMasahiro Yamada * Copyright (C) 2017 Masahiro Yamada <yamada.masahiro@socionext.com> 4573a3811SMasahiro Yamada */ 5573a3811SMasahiro Yamada 64af0d7e8SSimon Glass #include <common.h> 79d922450SSimon Glass #include <dm.h> 8573a3811SMasahiro Yamada #include <sysreset.h> 9573a3811SMasahiro Yamada #include <linux/errno.h> 10573a3811SMasahiro Yamada #include <linux/psci.h> 11573a3811SMasahiro Yamada psci_sysreset_request(struct udevice * dev,enum sysreset_t type)12573a3811SMasahiro Yamadastatic int psci_sysreset_request(struct udevice *dev, enum sysreset_t type) 13573a3811SMasahiro Yamada { 14573a3811SMasahiro Yamada unsigned long function_id; 15573a3811SMasahiro Yamada 16573a3811SMasahiro Yamada switch (type) { 17573a3811SMasahiro Yamada case SYSRESET_WARM: 18573a3811SMasahiro Yamada case SYSRESET_COLD: 19573a3811SMasahiro Yamada function_id = PSCI_0_2_FN_SYSTEM_RESET; 20573a3811SMasahiro Yamada break; 21573a3811SMasahiro Yamada case SYSRESET_POWER: 22573a3811SMasahiro Yamada function_id = PSCI_0_2_FN_SYSTEM_OFF; 23573a3811SMasahiro Yamada break; 24573a3811SMasahiro Yamada default: 25573a3811SMasahiro Yamada return -ENOSYS; 26573a3811SMasahiro Yamada } 27573a3811SMasahiro Yamada 28573a3811SMasahiro Yamada invoke_psci_fn(function_id, 0, 0, 0); 29573a3811SMasahiro Yamada 30573a3811SMasahiro Yamada return -EINPROGRESS; 31573a3811SMasahiro Yamada } 32573a3811SMasahiro Yamada 33573a3811SMasahiro Yamada static struct sysreset_ops psci_sysreset_ops = { 34573a3811SMasahiro Yamada .request = psci_sysreset_request, 35573a3811SMasahiro Yamada }; 36573a3811SMasahiro Yamada 37573a3811SMasahiro Yamada U_BOOT_DRIVER(psci_sysreset) = { 38573a3811SMasahiro Yamada .name = "psci-sysreset", 39573a3811SMasahiro Yamada .id = UCLASS_SYSRESET, 40573a3811SMasahiro Yamada .ops = &psci_sysreset_ops, 41573a3811SMasahiro Yamada }; 42