diff options
Diffstat (limited to 'arch/arm/mach-u300/include/mach/entry-macro.S')
| -rw-r--r-- | arch/arm/mach-u300/include/mach/entry-macro.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/mach-u300/include/mach/entry-macro.S b/arch/arm/mach-u300/include/mach/entry-macro.S new file mode 100644 index 00000000000..20731ae39d3 --- /dev/null +++ b/arch/arm/mach-u300/include/mach/entry-macro.S @@ -0,0 +1,40 @@ +/* + * + * arch-arm/mach-u300/include/mach/entry-macro.S + * + * + * Copyright (C) 2006-2009 ST-Ericsson AB + * License terms: GNU General Public License (GPL) version 2 + * Low-level IRQ helper macros for ST-Ericsson U300 + * Author: Linus Walleij <linus.walleij@stericsson.com> + */ +#include <mach/hardware.h> +#include <asm/hardware/vic.h> + + .macro disable_fiq + .endm + + .macro get_irqnr_preamble, base, tmp + .endm + + .macro arch_ret_to_user, tmp1, tmp2 + .endm + + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + ldr \base, = U300_AHB_PER_VIRT_BASE-U300_AHB_PER_PHYS_BASE+U300_INTCON0_BASE + ldr \irqstat, [\base, #VIC_IRQ_STATUS] @ get masked status + mov \irqnr, #0 + teq \irqstat, #0 + bne 1002f +1001: ldr \base, = U300_AHB_PER_VIRT_BASE-U300_AHB_PER_PHYS_BASE+U300_INTCON1_BASE + ldr \irqstat, [\base, #VIC_IRQ_STATUS] @ get masked status + mov \irqnr, #32 + teq \irqstat, #0 + beq 1003f +1002: tst \irqstat, #1 + bne 1003f + add \irqnr, \irqnr, #1 + movs \irqstat, \irqstat, lsr #1 + bne 1002b +1003: /* EQ will be set if no irqs pending */ + .endm |