/* * arch/arm/mach-iop3xx/common.c * * Common routines shared across all IOP3xx implementations * * Author: Deepak Saxena <dsaxena@mvista.com> * * Copyright 2003 (c) MontaVista, Software, Inc. * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any * warranty of any kind, whether express or implied. */ #include <linux/config.h> #include <linux/delay.h> #include <asm/hardware.h> /* * Shared variables */ unsigned long iop3xx_pcibios_min_io = 0; unsigned long iop3xx_pcibios_min_mem = 0; #ifdef CONFIG_ARCH_EP80219 #include <linux/kernel.h> /* * Default power-off for EP80219 */ static inline void ep80219_send_to_pic(__u8 c) { } void ep80219_power_off(void) { /* * This function will send a SHUTDOWN_COMPLETE message to the PIC controller * over I2C. We are not using the i2c subsystem since we are going to power * off and it may be removed */ /* Send the Address byte w/ the start condition */ *IOP321_IDBR1 = 0x60; *IOP321_ICR1 = 0xE9; mdelay(1); /* Send the START_MSG byte w/ no start or stop condition */ *IOP321_IDBR1 = 0x0F; *IOP321_ICR1 = 0xE8; mdelay(1); /* Send the SHUTDOWN_COMPLETE Message ID byte w/ no start or stop condition */ *IOP321_IDBR1 = 0x03; *IOP321_ICR1 = 0xE8; mdelay(1); /* Send an ignored byte w/ stop condition */ *IOP321_IDBR1 = 0x00; *IOP321_ICR1 = 0xEA; while (1) ; } #include <linux/init.h> #include <linux/pm.h> static int __init ep80219_init(void) { pm_power_off = ep80219_power_off; return 0; } arch_initcall(ep80219_init); #endif