74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
|
/*
|
||
|
|
* 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
|