| /* |
| * 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 disable_fiq |
| .endm |
| |
| .macro get_irqnr_preamble, base, tmp |
| ldr \base, =davinci_intc_base |
| ldr \base, [\base] |
| .endm |
| |
| .macro arch_ret_to_user, tmp1, tmp2 |
| .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 |
| |
| .macro irq_prio_table |
| .endm |
