blob: e0e91d6b18ff462042c98efd99c5ad0f6a810dc3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/*
* Copyright 2007 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
* MTD primitives for XIP support. Architecture specific functions
*
* Do not include this file directly. It's included from linux/mtd/xip.h
*/
/*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#ifndef __ARCH_MXC_MTD_XIP_H__
#define __ARCH_MXC_MTD_XIP_H__
#include <linux/clocksource.h>
#include <asm/hardware.h>
#include <asm/arch/system.h>
#define xip_irqpending() \
((__raw_readl(AVIC_NIVECSR) & __raw_readl(AVIC_FIVECSR)) != 0xFFFFFFFF)
extern struct clocksource *mtd_xip_clksrc;
#define xip_currtime() (unsigned long)clocksource_read(mtd_xip_clksrc)
#if CLOCK_TICK_RATE > 1000000
#define NUMERATOR 1
#define DENOMINATOR (CLOCK_TICK_RATE/1000000 + 1)
#else
#define NUMERATOR (1000000/CLOCK_TICK_RATE)
#define DENOMINATOR 1
#endif
static inline unsigned long xip_elapsed_since(unsigned long x)
{
return (((xip_currtime() - x) * NUMERATOR) / DENOMINATOR);
}
/*
* Wait For Interrupt command for XIP kernel to put CPU in Idle mode
*/
#define xip_cpu_idle() arch_idle()
#endif /* __ARCH_MXC_MTD_XIP_H__ */
|
