mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
1.8 KiB
80 lines
1.8 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
/* |
|
* Copyright (c) 2016, NVIDIA CORPORATION. |
|
*/ |
|
|
|
#include <common.h> |
|
#include <dm.h> |
|
#include <misc.h> |
|
#include <reset-uclass.h> |
|
#include <asm/arch-tegra/bpmp_abi.h> |
|
|
|
static int tegra186_reset_request(struct reset_ctl *reset_ctl) |
|
{ |
|
debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl, |
|
reset_ctl->dev, reset_ctl->id); |
|
|
|
return 0; |
|
} |
|
|
|
static int tegra186_reset_free(struct reset_ctl *reset_ctl) |
|
{ |
|
debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl, |
|
reset_ctl->dev, reset_ctl->id); |
|
|
|
return 0; |
|
} |
|
|
|
static int tegra186_reset_common(struct reset_ctl *reset_ctl, |
|
enum mrq_reset_commands cmd) |
|
{ |
|
struct mrq_reset_request req; |
|
int ret; |
|
|
|
req.cmd = cmd; |
|
req.reset_id = reset_ctl->id; |
|
|
|
ret = misc_call(reset_ctl->dev->parent, MRQ_RESET, &req, sizeof(req), |
|
NULL, 0); |
|
if (ret < 0) |
|
return ret; |
|
|
|
return 0; |
|
} |
|
|
|
static int tegra186_reset_assert(struct reset_ctl *reset_ctl) |
|
{ |
|
debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl, |
|
reset_ctl->dev, reset_ctl->id); |
|
|
|
return tegra186_reset_common(reset_ctl, CMD_RESET_ASSERT); |
|
} |
|
|
|
static int tegra186_reset_deassert(struct reset_ctl *reset_ctl) |
|
{ |
|
debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl, |
|
reset_ctl->dev, reset_ctl->id); |
|
|
|
return tegra186_reset_common(reset_ctl, CMD_RESET_DEASSERT); |
|
} |
|
|
|
struct reset_ops tegra186_reset_ops = { |
|
.request = tegra186_reset_request, |
|
.free = tegra186_reset_free, |
|
.rst_assert = tegra186_reset_assert, |
|
.rst_deassert = tegra186_reset_deassert, |
|
}; |
|
|
|
static int tegra186_reset_probe(struct udevice *dev) |
|
{ |
|
debug("%s(dev=%p)\n", __func__, dev); |
|
|
|
return 0; |
|
} |
|
|
|
U_BOOT_DRIVER(tegra186_reset) = { |
|
.name = "tegra186_reset", |
|
.id = UCLASS_RESET, |
|
.probe = tegra186_reset_probe, |
|
.ops = &tegra186_reset_ops, |
|
};
|
|
|