| /* |
| * arch/arm/mach-pxa/include/mach/entry-macro.S |
| * |
| * Low-level IRQ helper macros for PXA-based 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 |
| mrc p15, 0, \tmp, c0, c0, 0 @ CPUID |
| mov \tmp, \tmp, lsr #13 |
| and \tmp, \tmp, #0x7 @ Core G |
| cmp \tmp, #1 |
| bhi 1002f |
| |
| @ Core Generation 1 (PXA25x) |
| mov \base, #io_p2v(0x40000000) @ IIR Ctl = 0x40d00000 |
| add \base, \base, #0x00d00000 |
| ldr \irqstat, [\base, #0] @ ICIP |
| ldr \irqnr, [\base, #4] @ ICMR |
| |
| ands \irqnr, \irqstat, \irqnr |
| beq 1001f |
| rsb \irqstat, \irqnr, #0 |
| and \irqstat, \irqstat, \irqnr |
| clz \irqnr, \irqstat |
| rsb \irqnr, \irqnr, #(31 + PXA_IRQ(0)) |
| b 1001f |
| 1002: |
| @ Core Generation 2 (PXA27x) or Core Generation 3 (PXA3xx) |
| mrc p6, 0, \irqstat, c5, c0, 0 @ ICHP |
| tst \irqstat, #0x80000000 |
| beq 1001f |
| bic \irqstat, \irqstat, #0x80000000 |
| mov \irqnr, \irqstat, lsr #16 |
| add \irqnr, \irqnr, #(PXA_IRQ(0)) |
| 1001: |
| .endm |
