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