1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
146 lines
6.1 KiB
ArmAsm
146 lines
6.1 KiB
ArmAsm
/*
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* arch/arm/commond/entry-macro-iomd.S
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*
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* Low-level IRQ helper macros for IOC/IOMD based platforms
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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/* IOC / IOMD based hardware */
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#include <asm/hardware/iomd.h>
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.equ ioc_base_high, IOC_BASE & 0xff000000
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.equ ioc_base_low, IOC_BASE & 0x00ff0000
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.macro disable_fiq
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mov r12, #ioc_base_high
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.if ioc_base_low
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orr r12, r12, #ioc_base_low
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.endif
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strb r12, [r12, #0x38] @ Disable FIQ register
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.endm
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.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
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mov r4, #ioc_base_high @ point at IOC
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.if ioc_base_low
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orr r4, r4, #ioc_base_low
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.endif
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ldrb \irqstat, [r4, #IOMD_IRQREQB] @ get high priority first
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ldr \base, =irq_prio_h
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teq \irqstat, #0
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#ifdef IOMD_BASE
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ldreqb \irqstat, [r4, #IOMD_DMAREQ] @ get dma
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addeq \base, \base, #256 @ irq_prio_h table size
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teqeq \irqstat, #0
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bne 2406f
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#endif
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ldreqb \irqstat, [r4, #IOMD_IRQREQA] @ get low priority
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addeq \base, \base, #256 @ irq_prio_d table size
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teqeq \irqstat, #0
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#ifdef IOMD_IRQREQC
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ldreqb \irqstat, [r4, #IOMD_IRQREQC]
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addeq \base, \base, #256 @ irq_prio_l table size
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teqeq \irqstat, #0
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#endif
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#ifdef IOMD_IRQREQD
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ldreqb \irqstat, [r4, #IOMD_IRQREQD]
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addeq \base, \base, #256 @ irq_prio_lc table size
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teqeq \irqstat, #0
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#endif
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2406: ldrneb \irqnr, [\base, \irqstat] @ get IRQ number
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.endm
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/*
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* Interrupt table (incorporates priority). Please note that we
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* rely on the order of these tables (see above code).
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*/
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.align 5
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irq_prio_h: .byte 0, 8, 9, 8,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 12, 8, 9, 8,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 14,14,14,14,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 14,14,14,14,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
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.byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
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#ifdef IOMD_BASE
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irq_prio_d: .byte 0,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 20,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 23,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 23,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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.byte 21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16
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#endif
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irq_prio_l: .byte 0, 0, 1, 0, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3
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.byte 4, 0, 1, 0, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3
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.byte 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
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.byte 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
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.byte 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3
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.byte 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3
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.byte 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
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.byte 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
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.byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
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.byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
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.byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
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.byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
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.byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
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.byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
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.byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
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.byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
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#ifdef IOMD_IRQREQC
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irq_prio_lc: .byte 24,24,25,24,26,26,26,26,27,27,27,27,27,27,27,27
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.byte 28,24,25,24,26,26,26,26,27,27,27,27,27,27,27,27
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.byte 29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29
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.byte 29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29
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.byte 30,30,30,30,30,30,30,30,27,27,27,27,27,27,27,27
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.byte 30,30,30,30,30,30,30,30,27,27,27,27,27,27,27,27
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.byte 29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29
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.byte 29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29
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.byte 31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
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.byte 31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
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.byte 31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
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.byte 31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
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.byte 31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
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.byte 31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
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.byte 31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
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.byte 31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31
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#endif
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#ifdef IOMD_IRQREQD
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irq_prio_ld: .byte 40,40,41,40,42,42,42,42,43,43,43,43,43,43,43,43
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.byte 44,40,41,40,42,42,42,42,43,43,43,43,43,43,43,43
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.byte 45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45
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.byte 45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45
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.byte 46,46,46,46,46,46,46,46,43,43,43,43,43,43,43,43
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.byte 46,46,46,46,46,46,46,46,43,43,43,43,43,43,43,43
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.byte 45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45
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.byte 45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45
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.byte 47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
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.byte 47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
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.byte 47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
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.byte 47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
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.byte 47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
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.byte 47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
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.byte 47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
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.byte 47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47
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#endif
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