tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * include/asm-arm/arch-pxa/entry-macro.S
3 *
4 * Low-level IRQ helper macros for PXA-based platforms
5 *
6 * This file is licensed under the terms of the GNU General Public
7 * License version 2. This program is licensed "as is" without any
8 * warranty of any kind, whether express or implied.
9 */
10
11 .macro disable_fiq
12 .endm
13
14 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
15#ifdef CONFIG_PXA27x
16 mrc p6, 0, \irqstat, c0, c0, 0 @ ICIP
17 mrc p6, 0, \irqnr, c1, c0, 0 @ ICMR
18#else
19 mov \base, #io_p2v(0x40000000) @ IIR Ctl = 0x40d00000
20 add \base, \base, #0x00d00000
21 ldr \irqstat, [\base, #0] @ ICIP
22 ldr \irqnr, [\base, #4] @ ICMR
23#endif
24 ands \irqnr, \irqstat, \irqnr
25 beq 1001f
26 rsb \irqstat, \irqnr, #0
27 and \irqstat, \irqstat, \irqnr
28 clz \irqnr, \irqstat
29 rsb \irqnr, \irqnr, #(31 - PXA_IRQ_SKIP)
301001:
31 .endm