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- /*****************************************************************************
- * 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 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
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