1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2015 Google, Inc
4 * Written by Simon Glass <sjg@chromium.org>
11 #include <asm/state.h>
14 static int sandbox_warm_sysreset_request(struct udevice *dev,
17 struct sandbox_state *state = state_get_current();
21 state->last_sysreset = type;
26 if (!state->sysreset_allowed[type])
32 int sandbox_warm_sysreset_get_status(struct udevice *dev, char *buf, int size)
34 strlcpy(buf, "Reset Status: WARM", size);
39 int sandbox_warm_sysreset_get_last(struct udevice *dev)
44 static int sandbox_sysreset_request(struct udevice *dev, enum sysreset_t type)
46 struct sandbox_state *state = state_get_current();
49 * If we have a device tree, the device we created from platform data
50 * (see the U_BOOT_DEVICE() declaration below) should not do anything.
51 * If we are that device, return an error.
53 if (state->fdt_fname && !dev_of_valid(dev))
58 state->last_sysreset = type;
61 state->last_sysreset = type;
62 if (!state->sysreset_allowed[type])
66 case SYSRESET_POWER_OFF:
67 if (!state->sysreset_allowed[type])
72 if (!state->sysreset_allowed[type])
78 int sandbox_sysreset_get_status(struct udevice *dev, char *buf, int size)
80 strlcpy(buf, "Reset Status: COLD", size);
85 int sandbox_sysreset_get_last(struct udevice *dev)
90 static struct sysreset_ops sandbox_sysreset_ops = {
91 .request = sandbox_sysreset_request,
92 .get_status = sandbox_sysreset_get_status,
93 .get_last = sandbox_sysreset_get_last,
96 static const struct udevice_id sandbox_sysreset_ids[] = {
97 { .compatible = "sandbox,reset" },
101 U_BOOT_DRIVER(sysreset_sandbox) = {
102 .name = "sysreset_sandbox",
103 .id = UCLASS_SYSRESET,
104 .of_match = sandbox_sysreset_ids,
105 .ops = &sandbox_sysreset_ops,
108 static struct sysreset_ops sandbox_warm_sysreset_ops = {
109 .request = sandbox_warm_sysreset_request,
110 .get_status = sandbox_warm_sysreset_get_status,
111 .get_last = sandbox_warm_sysreset_get_last,
114 static const struct udevice_id sandbox_warm_sysreset_ids[] = {
115 { .compatible = "sandbox,warm-reset" },
119 U_BOOT_DRIVER(warm_sysreset_sandbox) = {
120 .name = "warm_sysreset_sandbox",
121 .id = UCLASS_SYSRESET,
122 .of_match = sandbox_warm_sysreset_ids,
123 .ops = &sandbox_warm_sysreset_ops,
126 /* This is here in case we don't have a device tree */
127 U_BOOT_DEVICE(sysreset_sandbox_non_fdt) = {
128 .name = "sysreset_sandbox",