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Based on 2 normalized pattern(s): 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* MTD primitives for XIP support. Architecture specific functions
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*
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* Do not include this file directly. It's included from linux/mtd/xip.h
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*
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* Author: Nicolas Pitre
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* Created: Nov 2, 2004
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* Copyright: (C) 2004 MontaVista Software, Inc.
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*/
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#ifndef __ARCH_PXA_MTD_XIP_H__
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#define __ARCH_PXA_MTD_XIP_H__
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#include <mach/regs-ost.h>
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/* restored July 2017, this did not build since 2011! */
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#define ICIP io_p2v(0x40d00000)
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#define ICMR io_p2v(0x40d00004)
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#define xip_irqpending() (readl(ICIP) & readl(ICMR))
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/* we sample OSCR and convert desired delta to usec (1/4 ~= 1000000/3686400) */
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#define xip_currtime() readl(OSCR)
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#define xip_elapsed_since(x) (signed)((readl(OSCR) - (x)) / 4)
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/*
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* xip_cpu_idle() is used when waiting for a delay equal or larger than
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* the system timer tick period. This should put the CPU into idle mode
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* to save power and to be woken up only when some interrupts are pending.
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* As above, this should not rely upon standard kernel code.
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*/
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#define xip_cpu_idle() asm volatile ("mcr p14, 0, %0, c7, c0, 0" :: "r" (1))
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#endif /* __ARCH_PXA_MTD_XIP_H__ */
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