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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2010,2011
* NVIDIA Corporation <www.nvidia.com>
*
* (C) Copyright 2024
* Svyatoslav Ryhel <clamor95@gmail.com>
*/
/* Picasso derives from Ventana board */
#include <dm.h>
#include <i2c.h>
#include <log.h>
#include <linux/delay.h>
#define TPS6586X_I2C_ADDRESS 0x34
#define TPS6586X_SUPPLYENE 0x14
#define EXITSLREQ_BIT BIT(1)
#define SLEEP_MODE_BIT BIT(3)
#ifdef CONFIG_CMD_POWEROFF
int do_poweroff(struct cmd_tbl *cmdtp,
int flag, int argc, char *const argv[])
{
struct udevice *dev;
uchar data_buffer[1];
int ret;
ret = i2c_get_chip_for_busnum(0, TPS6586X_I2C_ADDRESS, 1, &dev);
if (ret) {
log_debug("cannot find PMIC I2C chip\n");
return 0;
}
ret = dm_i2c_read(dev, TPS6586X_SUPPLYENE, data_buffer, 1);
if (ret)
return ret;
data_buffer[0] &= ~EXITSLREQ_BIT;
ret = dm_i2c_write(dev, TPS6586X_SUPPLYENE, data_buffer, 1);
if (ret)
return ret;
data_buffer[0] |= SLEEP_MODE_BIT;
ret = dm_i2c_write(dev, TPS6586X_SUPPLYENE, data_buffer, 1);
if (ret)
return ret;
// wait some time and then print error
mdelay(5000);
printf("Failed to power off!!!\n");
return 1;
}
#endif
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