| /***************************************************************************** |
| * Copyright 2006 - 2008 Broadcom Corporation. All rights reserved. |
| * |
| * Unless you and Broadcom execute a separate written software license |
| * agreement governing use of this software, this software is licensed to you |
| * under the terms of the GNU General Public License version 2, available at |
| * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). |
| * |
| * Notwithstanding the above, under no circumstances may you combine this |
| * software in any way with any other Broadcom software provided under a |
| * license other than the GPL, without Broadcom's express prior written |
| * consent. |
| *****************************************************************************/ |
| |
| /* |
| * |
| * Low-level IRQ helper macros for BCMRing-based platforms |
| * |
| */ |
| #include <mach/irqs.h> |
| #include <mach/hardware.h> |
| #include <mach/csp/mm_io.h> |
| |
| .macro disable_fiq |
| .endm |
| |
| .macro get_irqnr_and_base, irqnr, irqstat, base, tmp |
| ldr \base, =(MM_IO_BASE_INTC0) |
| ldr \irqstat, [\base, #0] @ get status |
| ldr \irqnr, [\base, #0x10] @ mask with enable register |
| ands \irqstat, \irqstat, \irqnr |
| mov \irqnr, #IRQ_INTC0_START |
| cmp \irqstat, #0 |
| bne 1001f |
| |
| ldr \base, =(MM_IO_BASE_INTC1) |
| ldr \irqstat, [\base, #0] @ get status |
| ldr \irqnr, [\base, #0x10] @ mask with enable register |
| ands \irqstat, \irqstat, \irqnr |
| mov \irqnr, #IRQ_INTC1_START |
| cmp \irqstat, #0 |
| bne 1001f |
| |
| ldr \base, =(MM_IO_BASE_SINTC) |
| ldr \irqstat, [\base, #0] @ get status |
| ldr \irqnr, [\base, #0x10] @ mask with enable register |
| ands \irqstat, \irqstat, \irqnr |
| mov \irqnr, #0xffffffff @ code meaning no interrupt bits set |
| cmp \irqstat, #0 |
| beq 1002f |
| |
| mov \irqnr, #IRQ_SINTC_START @ something is set, so fixup return value |
| |
| 1001: |
| movs \tmp, \irqstat, lsl #16 |
| movne \irqstat, \tmp |
| addeq \irqnr, \irqnr, #16 |
| |
| movs \tmp, \irqstat, lsl #8 |
| movne \irqstat, \tmp |
| addeq \irqnr, \irqnr, #8 |
| |
| movs \tmp, \irqstat, lsl #4 |
| movne \irqstat, \tmp |
| addeq \irqnr, \irqnr, #4 |
| |
| movs \tmp, \irqstat, lsl #2 |
| movne \irqstat, \tmp |
| addeq \irqnr, \irqnr, #2 |
| |
| movs \tmp, \irqstat, lsl #1 |
| addeq \irqnr, \irqnr, #1 |
| orrs \base, \base, #1 |
| |
| 1002: @ irqnr will be set to 0xffffffff if no irq bits are set |
| .endm |
| |
| .macro get_irqnr_preamble, base, tmp |
| .endm |
| |
| .macro arch_ret_to_user, tmp1, tmp2 |
| .endm |
| |
| .macro irq_prio_table |
| .endm |
| |
