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- /*
- * Low-level IRQ helper macros for TI DaVinci-based platforms
- *
- * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
- *
- * 2007 (c) MontaVista Software, Inc. 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/io.h>
- #include <mach/irqs.h>
- .macro get_irqnr_preamble, base, tmp
- ldr \base, =davinci_intc_base
- ldr \base, [\base]
- .endm
- .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
- #if defined(CONFIG_AINTC) && defined(CONFIG_CP_INTC)
- ldr \tmp, =davinci_intc_type
- ldr \tmp, [\tmp]
- cmp \tmp, #DAVINCI_INTC_TYPE_CP_INTC
- beq 1001f
- #endif
- #if defined(CONFIG_AINTC)
- ldr \tmp, [\base, #0x14]
- movs \tmp, \tmp, lsr #2
- sub \irqnr, \tmp, #1
- b 1002f
- #endif
- #if defined(CONFIG_CP_INTC)
- 1001: ldr \irqnr, [\base, #0x80] /* get irq number */
- and \irqnr, \irqnr, #0xff /* irq is in bits 0-9 */
- mov \tmp, \irqnr, lsr #3
- and \tmp, \tmp, #0xfc
- add \tmp, \tmp, #0x280 /* get the register offset */
- ldr \irqstat, [\base, \tmp] /* get the intc status */
- cmp \irqstat, #0x0
- #endif
- 1002:
- .endm
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