mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 22:53:55 +08:00
97b09da4ee
This tries to clear up the confusion between integers and iomem pointers in the marvell pxa platform. MMIO addresses are supposed to be __iomem* values, in order to let the Linux type checking work correctly. This patch moves the cast to __iomem as far back as possible, to the place where the MMIO virtual address windows are defined. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
/*
|
|
* MTD primitives for XIP support. Architecture specific functions
|
|
*
|
|
* Do not include this file directly. It's included from linux/mtd/xip.h
|
|
*
|
|
* Author: Nicolas Pitre
|
|
* Created: Nov 2, 2004
|
|
* Copyright: (C) 2004 MontaVista Software, Inc.
|
|
*
|
|
* 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 __ARCH_PXA_MTD_XIP_H__
|
|
#define __ARCH_PXA_MTD_XIP_H__
|
|
|
|
#include <mach/regs-ost.h>
|
|
|
|
#define xip_irqpending() (ICIP & ICMR)
|
|
|
|
/* we sample OSCR and convert desired delta to usec (1/4 ~= 1000000/3686400) */
|
|
#define xip_currtime() (OSCR)
|
|
#define xip_elapsed_since(x) (signed)((OSCR - (x)) / 4)
|
|
|
|
/*
|
|
* 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.
|
|
* As above, this should not rely upon standard kernel code.
|
|
*/
|
|
|
|
#define xip_cpu_idle() asm volatile ("mcr p14, 0, %0, c7, c0, 0" :: "r" (1))
|
|
|
|
#endif /* __ARCH_PXA_MTD_XIP_H__ */
|