diff options
Diffstat (limited to 'arch/arm/mach-integrator/include/mach/entry-macro.S')
| -rw-r--r-- | arch/arm/mach-integrator/include/mach/entry-macro.S | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/mach-integrator/include/mach/entry-macro.S b/arch/arm/mach-integrator/include/mach/entry-macro.S new file mode 100644 index 00000000000..7649c57acb5 --- /dev/null +++ b/arch/arm/mach-integrator/include/mach/entry-macro.S @@ -0,0 +1,44 @@ +/* + * arch/arm/mach-integrator/include/mach/entry-macro.S + * + * Low-level IRQ helper macros for Integrator platforms + * + * 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> +#include <mach/irqs.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 +/* FIXME: should not be using soo many LDRs here */ + ldr \base, =IO_ADDRESS(INTEGRATOR_IC_BASE) + mov \irqnr, #IRQ_PIC_START + ldr \irqstat, [\base, #IRQ_STATUS] @ get masked status + ldr \base, =IO_ADDRESS(INTEGRATOR_HDR_BASE) + teq \irqstat, #0 + ldreq \irqstat, [\base, #(INTEGRATOR_HDR_IC_OFFSET+IRQ_STATUS)] + moveq \irqnr, #IRQ_CIC_START + +1001: tst \irqstat, #15 + bne 1002f + add \irqnr, \irqnr, #4 + movs \irqstat, \irqstat, lsr #4 + bne 1001b +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 + |