upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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.
u-boot/drivers/reset/tegra-car-reset.c

73 lines
1.6 KiB

/*
* Copyright (c) 2016, NVIDIA CORPORATION.
*
* SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#include <dm.h>
#include <reset-uclass.h>
#include <asm/arch/clock.h>
#include <asm/arch-tegra/clk_rst.h>
static int tegra_car_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);
/* PERIPH_ID_COUNT varies per SoC */
if (reset_ctl->id >= PERIPH_ID_COUNT)
return -EINVAL;
return 0;
}
static int tegra_car_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 tegra_car_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);
reset_set_enable(reset_ctl->id, 1);
return 0;
}
static int tegra_car_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);
reset_set_enable(reset_ctl->id, 0);
return 0;
}
struct reset_ops tegra_car_reset_ops = {
.request = tegra_car_reset_request,
.free = tegra_car_reset_free,
.rst_assert = tegra_car_reset_assert,
.rst_deassert = tegra_car_reset_deassert,
};
static int tegra_car_reset_probe(struct udevice *dev)
{
debug("%s(dev=%p)\n", __func__, dev);
return 0;
}
U_BOOT_DRIVER(tegra_car_reset) = {
.name = "tegra_car_reset",
.id = UCLASS_RESET,
.probe = tegra_car_reset_probe,
.ops = &tegra_car_reset_ops,
};