| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* | 
|  | 2 | * arch/arm/commond/entry-macro-iomd.S | 
|  | 3 | * | 
|  | 4 | * Low-level IRQ helper macros for IOC/IOMD based platforms | 
|  | 5 | * | 
|  | 6 | * This file is licensed under  the terms of the GNU General Public | 
|  | 7 | * License version 2. This program is licensed "as is" without any | 
|  | 8 | * warranty of any kind, whether express or implied. | 
|  | 9 | */ | 
|  | 10 |  | 
|  | 11 | /* IOC / IOMD based hardware */ | 
|  | 12 | #include <asm/hardware/iomd.h> | 
|  | 13 |  | 
|  | 14 | .equ	ioc_base_high, IOC_BASE & 0xff000000 | 
|  | 15 | .equ	ioc_base_low, IOC_BASE & 0x00ff0000 | 
|  | 16 | .macro	disable_fiq | 
|  | 17 | mov	r12, #ioc_base_high | 
|  | 18 | .if	ioc_base_low | 
|  | 19 | orr	r12, r12, #ioc_base_low | 
|  | 20 | .endif | 
|  | 21 | strb	r12, [r12, #0x38]	@ Disable FIQ register | 
|  | 22 | .endm | 
|  | 23 |  | 
|  | 24 | .macro	get_irqnr_and_base, irqnr, irqstat, base, tmp | 
|  | 25 | mov	r4, #ioc_base_high		@ point at IOC | 
|  | 26 | .if	ioc_base_low | 
|  | 27 | orr	r4, r4, #ioc_base_low | 
|  | 28 | .endif | 
|  | 29 | ldrb	\irqstat, [r4, #IOMD_IRQREQB]	@ get high priority first | 
|  | 30 | ldr	\base, =irq_prio_h | 
|  | 31 | teq	\irqstat, #0 | 
|  | 32 | #ifdef IOMD_BASE | 
|  | 33 | ldreqb	\irqstat, [r4, #IOMD_DMAREQ]	@ get dma | 
|  | 34 | addeq	\base, \base, #256		@ irq_prio_h table size | 
|  | 35 | teqeq	\irqstat, #0 | 
|  | 36 | bne	2406f | 
|  | 37 | #endif | 
|  | 38 | ldreqb	\irqstat, [r4, #IOMD_IRQREQA]	@ get low priority | 
|  | 39 | addeq	\base, \base, #256		@ irq_prio_d table size | 
|  | 40 | teqeq	\irqstat, #0 | 
|  | 41 | #ifdef IOMD_IRQREQC | 
|  | 42 | ldreqb	\irqstat, [r4, #IOMD_IRQREQC] | 
|  | 43 | addeq	\base, \base, #256		@ irq_prio_l table size | 
|  | 44 | teqeq	\irqstat, #0 | 
|  | 45 | #endif | 
|  | 46 | #ifdef IOMD_IRQREQD | 
|  | 47 | ldreqb	\irqstat, [r4, #IOMD_IRQREQD] | 
|  | 48 | addeq	\base, \base, #256		@ irq_prio_lc table size | 
|  | 49 | teqeq	\irqstat, #0 | 
|  | 50 | #endif | 
|  | 51 | 2406:		ldrneb	\irqnr, [\base, \irqstat]	@ get IRQ number | 
|  | 52 | .endm | 
|  | 53 |  | 
|  | 54 | /* | 
|  | 55 | * Interrupt table (incorporates priority).  Please note that we | 
|  | 56 | * rely on the order of these tables (see above code). | 
|  | 57 | */ | 
|  | 58 | .align	5 | 
|  | 59 | irq_prio_h:	.byte	 0, 8, 9, 8,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 60 | .byte	12, 8, 9, 8,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 61 | .byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 62 | .byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 63 | .byte	14,14,14,14,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 64 | .byte	14,14,14,14,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 65 | .byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 66 | .byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 67 | .byte	15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 68 | .byte	15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 69 | .byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 70 | .byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 71 | .byte	15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 72 | .byte	15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 73 | .byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 74 | .byte	13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10 | 
|  | 75 | #ifdef IOMD_BASE | 
|  | 76 | irq_prio_d:	.byte	 0,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 77 | .byte	20,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 78 | .byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 79 | .byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 80 | .byte	22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 81 | .byte	22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 82 | .byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 83 | .byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 84 | .byte	23,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 85 | .byte	23,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 86 | .byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 87 | .byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 88 | .byte	22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 89 | .byte	22,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 90 | .byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 91 | .byte	21,16,17,16,18,16,17,16,19,16,17,16,18,16,17,16 | 
|  | 92 | #endif | 
|  | 93 | irq_prio_l:	.byte	 0, 0, 1, 0, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3 | 
|  | 94 | .byte	 4, 0, 1, 0, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3 | 
|  | 95 | .byte	 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 | 
|  | 96 | .byte	 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 | 
|  | 97 | .byte	 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3 | 
|  | 98 | .byte	 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3 | 
|  | 99 | .byte	 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 | 
|  | 100 | .byte	 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 | 
|  | 101 | .byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 | 
|  | 102 | .byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 | 
|  | 103 | .byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 | 
|  | 104 | .byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 | 
|  | 105 | .byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 | 
|  | 106 | .byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 | 
|  | 107 | .byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 | 
|  | 108 | .byte	 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 | 
|  | 109 | #ifdef IOMD_IRQREQC | 
|  | 110 | irq_prio_lc:	.byte	24,24,25,24,26,26,26,26,27,27,27,27,27,27,27,27 | 
|  | 111 | .byte	28,24,25,24,26,26,26,26,27,27,27,27,27,27,27,27 | 
|  | 112 | .byte	29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29 | 
|  | 113 | .byte	29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29 | 
|  | 114 | .byte	30,30,30,30,30,30,30,30,27,27,27,27,27,27,27,27 | 
|  | 115 | .byte	30,30,30,30,30,30,30,30,27,27,27,27,27,27,27,27 | 
|  | 116 | .byte	29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29 | 
|  | 117 | .byte	29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29 | 
|  | 118 | .byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31 | 
|  | 119 | .byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31 | 
|  | 120 | .byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31 | 
|  | 121 | .byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31 | 
|  | 122 | .byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31 | 
|  | 123 | .byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31 | 
|  | 124 | .byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31 | 
|  | 125 | .byte	31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31 | 
|  | 126 | #endif | 
|  | 127 | #ifdef IOMD_IRQREQD | 
|  | 128 | irq_prio_ld:	.byte	40,40,41,40,42,42,42,42,43,43,43,43,43,43,43,43 | 
|  | 129 | .byte	44,40,41,40,42,42,42,42,43,43,43,43,43,43,43,43 | 
|  | 130 | .byte	45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45 | 
|  | 131 | .byte	45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45 | 
|  | 132 | .byte	46,46,46,46,46,46,46,46,43,43,43,43,43,43,43,43 | 
|  | 133 | .byte	46,46,46,46,46,46,46,46,43,43,43,43,43,43,43,43 | 
|  | 134 | .byte	45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45 | 
|  | 135 | .byte	45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45 | 
|  | 136 | .byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47 | 
|  | 137 | .byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47 | 
|  | 138 | .byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47 | 
|  | 139 | .byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47 | 
|  | 140 | .byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47 | 
|  | 141 | .byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47 | 
|  | 142 | .byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47 | 
|  | 143 | .byte	47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47 | 
|  | 144 | #endif | 
|  | 145 |  |