diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/mtd/xip.h')
-rw-r--r-- | ANDROID_3.4.5/include/linux/mtd/xip.h | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/ANDROID_3.4.5/include/linux/mtd/xip.h b/ANDROID_3.4.5/include/linux/mtd/xip.h deleted file mode 100644 index abed4dec..00000000 --- a/ANDROID_3.4.5/include/linux/mtd/xip.h +++ /dev/null @@ -1,99 +0,0 @@ -/* - * MTD primitives for XIP support - * - * Author: Nicolas Pitre - * Created: Nov 2, 2004 - * Copyright: (C) 2004 MontaVista Software, Inc. - * - * This XIP support for MTD has been loosely inspired - * by an earlier patch authored by David Woodhouse. - * - * 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. - */ - -#ifndef __LINUX_MTD_XIP_H__ -#define __LINUX_MTD_XIP_H__ - - -#ifdef CONFIG_MTD_XIP - -/* - * We really don't want gcc to guess anything. - * We absolutely _need_ proper inlining. - */ -#include <linux/compiler.h> - -/* - * Function that are modifying the flash state away from array mode must - * obviously not be running from flash. The __xipram is therefore marking - * those functions so they get relocated to ram. - */ -#define __xipram noinline __attribute__ ((__section__ (".data"))) - -/* - * Each architecture has to provide the following macros. They must access - * the hardware directly and not rely on any other (XIP) functions since they - * won't be available when used (flash not in array mode). - * - * xip_irqpending() - * - * return non zero when any hardware interrupt is pending. - * - * xip_currtime() - * - * return a platform specific time reference to be used with - * xip_elapsed_since(). - * - * xip_elapsed_since(x) - * - * return in usecs the elapsed timebetween now and the reference x as - * returned by xip_currtime(). - * - * note 1: conversion to usec can be approximated, as long as the - * returned value is <= the real elapsed time. - * note 2: this should be able to cope with a few seconds without - * overflowing. - * - * xip_iprefetch() - * - * Macro to fill instruction prefetch - * e.g. a series of nops: asm volatile (".rep 8; nop; .endr"); - */ - -#include <asm/mtd-xip.h> - -#ifndef xip_irqpending - -#warning "missing IRQ and timer primitives for XIP MTD support" -#warning "some of the XIP MTD support code will be disabled" -#warning "your system will therefore be unresponsive when writing or erasing flash" - -#define xip_irqpending() (0) -#define xip_currtime() (0) -#define xip_elapsed_since(x) (0) - -#endif - -#ifndef xip_iprefetch -#define xip_iprefetch() do { } while (0) -#endif - -/* - * xip_cpu_idle() is used when waiting for a delay equal or larger than - * the system timer tick period. This should put the CPU into idle mode - * to save power and to be woken up only when some interrupts are pending. - * This should not rely upon standard kernel code. - */ -#ifndef xip_cpu_idle -#define xip_cpu_idle() do { } while (0) -#endif - -#else - -#define __xipram - -#endif /* CONFIG_MTD_XIP */ - -#endif /* __LINUX_MTD_XIP_H__ */ |