43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
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/* Copyright (c) 2011, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/reboot.h>
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#include <linux/io.h>
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#define FEMTO_GPIO_PS_HOLD 161
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void fsm_restart(char mode, const char *cmd)
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{
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pr_notice("Going down for restart now\n");
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msleep(3000);
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/* Configure FEMTO_GPIO_PS_HOLD as a general purpose output */
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if (gpio_tlmm_config(GPIO_CFG(FEMTO_GPIO_PS_HOLD, 0,
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GPIO_CFG_OUTPUT, GPIO_CFG_NO_PULL,
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GPIO_CFG_2MA), GPIO_CFG_ENABLE))
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pr_err("%s: gpio_tlmm_config (gpio=%d) failed\n",
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__func__, FEMTO_GPIO_PS_HOLD);
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/* Now set it low to power cycle the entire board */
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gpio_set_value(FEMTO_GPIO_PS_HOLD, 0);
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msleep(10000);
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pr_err("Restarting has failed\n");
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}
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