diff options
Diffstat (limited to 'linux/arch/arm/mach-davinci/include/mach/entry-macro.S')
| -rw-r--r-- | linux/arch/arm/mach-davinci/include/mach/entry-macro.S | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/linux/arch/arm/mach-davinci/include/mach/entry-macro.S b/linux/arch/arm/mach-davinci/include/mach/entry-macro.S new file mode 100644 index 00000000..cf5f573e --- /dev/null +++ b/linux/arch/arm/mach-davinci/include/mach/entry-macro.S @@ -0,0 +1,39 @@ +/* + * 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/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 */ + mov \tmp, \irqnr, lsr #31 + and \irqnr, \irqnr, #0xff /* irq is in bits 0-9 */ + and \tmp, \tmp, #0x1 + cmp \tmp, #0x1 +#endif +1002: + .endm |