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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2012 Antony Pavlov <antonynpavlov@gmail.com>
*/
/**
* @file
* @brief Resetting an JZ4755-based board
*/
#include <common.h>
#include <io.h>
#include <init.h>
#include <poweroff.h>
#include <mach/jz4750d_regs.h>
static void __noreturn jz4750d_halt(void)
{
while (1) {
__asm__(".set push;\n"
".set mips3;\n"
"wait;\n"
".set pop;\n"
);
}
unreachable();
}
static void __noreturn jz4750_poweroff(struct poweroff_handler *handler)
{
u32 ctrl;
shutdown_barebox();
do {
ctrl = readl((u32 *)RTC_RCR);
} while (!(ctrl & RTC_RCR_WRDY));
writel(RTC_HCR_PD, (u32 *)RTC_HCR);
jz4750d_halt();
}
static int jz4750_init(void)
{
poweroff_handler_register_fn(jz4750_poweroff);
return 0;
}
coredevice_initcall(jz4750_init);
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