projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c6337e2 KH |
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 | 11 | #include <mach/irqs.h> |
| 7c6337e2 | 12 | |
| 7c6337e2 | 13 | .macro get_irqnr_preamble, base, tmp |
| 673dd36f MG |
14 | ldr \base, =davinci_intc_base |
| 15 | ldr \base, [\base] | |
| 7c6337e2 KH |
16 | .endm |
| 17 | ||
| 7c6337e2 | 18 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp |
| 0b0c4c2a MG |
19 | #if defined(CONFIG_AINTC) && defined(CONFIG_CP_INTC) |
| 20 | ldr \tmp, =davinci_intc_type | |
| 21 | ldr \tmp, [\tmp] | |
| 22 | cmp \tmp, #DAVINCI_INTC_TYPE_CP_INTC | |
| 23 | beq 1001f | |
| 24 | #endif | |
| 25 | #if defined(CONFIG_AINTC) | |
| 7c6337e2 | 26 | ldr \tmp, [\base, #0x14] |
| ce8ccaf0 | 27 | movs \tmp, \tmp, lsr #2 |
| 7c6337e2 | 28 | sub \irqnr, \tmp, #1 |
| 0b0c4c2a MG |
29 | b 1002f |
| 30 | #endif | |
| 31 | #if defined(CONFIG_CP_INTC) | |
| 32 | 1001: ldr \irqnr, [\base, #0x80] /* get irq number */ | |
| 33 | and \irqnr, \irqnr, #0xff /* irq is in bits 0-9 */ | |
| 34 | mov \tmp, \irqnr, lsr #3 | |
| 35 | and \tmp, \tmp, #0xfc | |
| 36 | add \tmp, \tmp, #0x280 /* get the register offset */ | |
| 37 | ldr \irqstat, [\base, \tmp] /* get the intc status */ | |
| 38 | cmp \irqstat, #0x0 | |
| 39 | #endif | |
| 40 | 1002: | |
| 7c6337e2 | 41 | .endm |