/* * Copyright (C) 2012 Antony Pavlov <antonynpavlov@gmail.com> * * This file is part of barebox. * See file CREDITS for list of people who contributed to this project. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * */ /** * @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);