| /* |
| * Low-level IRQ helper macros for Gemini platform. |
| * |
| * Copyright (C) 2001-2006 Storlink, Corp. |
| * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt> |
| * |
| * 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> |
| |
| #define IRQ_STATUS 0x14 |
| |
| .macro get_irqnr_preamble, base, tmp |
| .endm |
| |
| .macro get_irqnr_and_base, irqnr, irqstat, base, tmp |
| ldr \irqstat, =IO_ADDRESS(GEMINI_INTERRUPT_BASE + IRQ_STATUS) |
| ldr \irqnr, [\irqstat] |
| cmp \irqnr, #0 |
| beq 2313f |
| mov \tmp, \irqnr |
| mov \irqnr, #0 |
| 2312: |
| tst \tmp, #1 |
| bne 2313f |
| add \irqnr, \irqnr, #1 |
| mov \tmp, \tmp, lsr #1 |
| cmp \irqnr, #31 |
| bcc 2312b |
| 2313: |
| .endm |
