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  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

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arch/arm/mach-pxa/include/mach/entry-macro.S
 
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/*
 
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 * arch/arm/mach-pxa/include/mach/entry-macro.S
 
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 *
 
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 * Low-level IRQ helper macros for PXA-based platforms
 
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 *
 
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 * This file is licensed under  the terms of the GNU General Public
 
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 * License version 2. This program is licensed "as is" without any
 
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 * warranty of any kind, whether express or implied.
 
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 */
 
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#include <mach/hardware.h>
 
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#include <mach/irqs.h>
 
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                .macro  disable_fiq
 
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                .endm
 
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                .macro  get_irqnr_preamble, base, tmp
 
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                .endm
 
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                .macro  arch_ret_to_user, tmp1, tmp2
 
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                .endm
 
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                .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
 
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                mrc     p15, 0, \tmp, c0, c0, 0         @ CPUID
 
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                mov     \tmp, \tmp, lsr #13
 
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                and     \tmp, \tmp, #0x7                @ Core G
 
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                cmp     \tmp, #1
 
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                bhi     1002f
 
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                @ Core Generation 1 (PXA25x)
 
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                mov     \base, #io_p2v(0x40000000)      @ IIR Ctl = 0x40d00000
 
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                add     \base, \base, #0x00d00000
 
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                ldr     \irqstat, [\base, #0]           @ ICIP
 
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                ldr     \irqnr, [\base, #4]             @ ICMR
 
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                ands    \irqnr, \irqstat, \irqnr
 
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                beq     1001f
 
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                rsb     \irqstat, \irqnr, #0
 
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                and     \irqstat, \irqstat, \irqnr
 
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                clz     \irqnr, \irqstat
 
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                rsb     \irqnr, \irqnr, #(31 + PXA_IRQ(0))
 
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                b       1001f
 
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1002:
 
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                @ Core Generation 2 (PXA27x) or Core Generation 3 (PXA3xx)
 
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                mrc     p6, 0, \irqstat, c5, c0, 0      @ ICHP
 
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                tst     \irqstat, #0x80000000
 
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                beq     1001f
 
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                bic     \irqstat, \irqstat, #0x80000000
 
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                mov     \irqnr, \irqstat, lsr #16
 
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                add     \irqnr, \irqnr, #(PXA_IRQ(0))
 
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1001:
 
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                .endm