mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-08-09 16:56:58 +02:00
d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2021 SAMSUNG Electronics
|
|
* Jaehoon Chung <jh80.chung@samsung.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <mmc.h>
|
|
#include <pwrseq.h>
|
|
#include <asm/gpio.h>
|
|
#include <linux/delay.h>
|
|
|
|
int mmc_pwrseq_get_power(struct udevice *dev, struct mmc_config *cfg)
|
|
{
|
|
/* Enable power if needed */
|
|
return uclass_get_device_by_phandle(UCLASS_PWRSEQ, dev, "mmc-pwrseq",
|
|
&cfg->pwr_dev);
|
|
}
|
|
|
|
static int mmc_pwrseq_set_power(struct udevice *dev, bool enable)
|
|
{
|
|
struct gpio_desc reset;
|
|
int ret;
|
|
|
|
ret = gpio_request_by_name(dev, "reset-gpios", 0, &reset, GPIOD_IS_OUT);
|
|
if (ret)
|
|
return ret;
|
|
dm_gpio_set_value(&reset, 1);
|
|
udelay(1);
|
|
dm_gpio_set_value(&reset, 0);
|
|
udelay(200);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct pwrseq_ops mmc_pwrseq_ops = {
|
|
.set_power = mmc_pwrseq_set_power,
|
|
};
|
|
|
|
static const struct udevice_id mmc_pwrseq_ids[] = {
|
|
{ .compatible = "mmc-pwrseq-emmc" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(mmc_pwrseq_drv) = {
|
|
.name = "mmc_pwrseq_emmc",
|
|
.id = UCLASS_PWRSEQ,
|
|
.of_match = mmc_pwrseq_ids,
|
|
.ops = &mmc_pwrseq_ops,
|
|
};
|