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1 | /* |
2 | * Low-level IRQ helper macros for TI DaVinci-based platforms | |
3 | * | |
4 | * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com> | |
5 | * | |
6 | * 2007 (c) MontaVista Software, Inc. This file is licensed under | |
7 | * the terms of the GNU General Public License version 2. This program | |
8 | * is licensed "as is" without any warranty of any kind, whether express | |
9 | * or implied. | |
10 | */ | |
a09e64fb RK |
11 | #include <mach/io.h> |
12 | #include <mach/irqs.h> | |
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13 | |
14 | .macro disable_fiq | |
15 | .endm | |
16 | ||
17 | .macro get_irqnr_preamble, base, tmp | |
673dd36f MG |
18 | ldr \base, =davinci_intc_base |
19 | ldr \base, [\base] | |
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20 | .endm |
21 | ||
22 | .macro arch_ret_to_user, tmp1, tmp2 | |
23 | .endm | |
24 | ||
25 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp | |
0b0c4c2a MG |
26 | #if defined(CONFIG_AINTC) && defined(CONFIG_CP_INTC) |
27 | ldr \tmp, =davinci_intc_type | |
28 | ldr \tmp, [\tmp] | |
29 | cmp \tmp, #DAVINCI_INTC_TYPE_CP_INTC | |
30 | beq 1001f | |
31 | #endif | |
32 | #if defined(CONFIG_AINTC) | |
7c6337e2 | 33 | ldr \tmp, [\base, #0x14] |
ce8ccaf0 | 34 | movs \tmp, \tmp, lsr #2 |
7c6337e2 | 35 | sub \irqnr, \tmp, #1 |
0b0c4c2a MG |
36 | b 1002f |
37 | #endif | |
38 | #if defined(CONFIG_CP_INTC) | |
39 | 1001: ldr \irqnr, [\base, #0x80] /* get irq number */ | |
40 | and \irqnr, \irqnr, #0xff /* irq is in bits 0-9 */ | |
41 | mov \tmp, \irqnr, lsr #3 | |
42 | and \tmp, \tmp, #0xfc | |
43 | add \tmp, \tmp, #0x280 /* get the register offset */ | |
44 | ldr \irqstat, [\base, \tmp] /* get the intc status */ | |
45 | cmp \irqstat, #0x0 | |
46 | #endif | |
47 | 1002: | |
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48 | .endm |
49 | ||
50 | .macro irq_prio_table | |
51 | .endm |