2 * Copyright (c) 2016, NVIDIA CORPORATION.
4 * SPDX-License-Identifier: GPL-2.0
9 #include <reset-uclass.h>
11 #include <asm/reset.h>
13 #define SANDBOX_RESET_SIGNALS 3
15 struct sandbox_reset_signal
{
19 struct sandbox_reset
{
20 struct sandbox_reset_signal signals
[SANDBOX_RESET_SIGNALS
];
23 static int sandbox_reset_request(struct reset_ctl
*reset_ctl
)
25 debug("%s(reset_ctl=%p)\n", __func__
, reset_ctl
);
27 if (reset_ctl
->id
>= SANDBOX_RESET_SIGNALS
)
33 static int sandbox_reset_free(struct reset_ctl
*reset_ctl
)
35 debug("%s(reset_ctl=%p)\n", __func__
, reset_ctl
);
40 static int sandbox_reset_assert(struct reset_ctl
*reset_ctl
)
42 struct sandbox_reset
*sbr
= dev_get_priv(reset_ctl
->dev
);
44 debug("%s(reset_ctl=%p)\n", __func__
, reset_ctl
);
46 sbr
->signals
[reset_ctl
->id
].asserted
= true;
51 static int sandbox_reset_deassert(struct reset_ctl
*reset_ctl
)
53 struct sandbox_reset
*sbr
= dev_get_priv(reset_ctl
->dev
);
55 debug("%s(reset_ctl=%p)\n", __func__
, reset_ctl
);
57 sbr
->signals
[reset_ctl
->id
].asserted
= false;
62 static int sandbox_reset_bind(struct udevice
*dev
)
64 debug("%s(dev=%p)\n", __func__
, dev
);
69 static int sandbox_reset_probe(struct udevice
*dev
)
71 debug("%s(dev=%p)\n", __func__
, dev
);
76 static const struct udevice_id sandbox_reset_ids
[] = {
77 { .compatible
= "sandbox,reset-ctl" },
81 struct reset_ops sandbox_reset_reset_ops
= {
82 .request
= sandbox_reset_request
,
83 .free
= sandbox_reset_free
,
84 .rst_assert
= sandbox_reset_assert
,
85 .rst_deassert
= sandbox_reset_deassert
,
88 U_BOOT_DRIVER(sandbox_reset
) = {
89 .name
= "sandbox_reset",
91 .of_match
= sandbox_reset_ids
,
92 .bind
= sandbox_reset_bind
,
93 .probe
= sandbox_reset_probe
,
94 .priv_auto_alloc_size
= sizeof(struct sandbox_reset
),
95 .ops
= &sandbox_reset_reset_ops
,
98 int sandbox_reset_query(struct udevice
*dev
, unsigned long id
)
100 struct sandbox_reset
*sbr
= dev_get_priv(dev
);
102 debug("%s(dev=%p, id=%ld)\n", __func__
, dev
, id
);
104 if (id
>= SANDBOX_RESET_SIGNALS
)
107 return sbr
->signals
[id
].asserted
;