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| author | Takashi Iwai <tiwai@suse.de> | 2010-08-18 15:17:30 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-08-18 15:17:30 +0200 |
| commit | 6ab561c8aab2e4af535f09adbc6253f958536848 (patch) | |
| tree | 37846adb4ea106485720d113e252d71d615c23ed /arch/arm/mach-imx/mx1-camera-fiq.S | |
| parent | 4f4e8f69895c8696a4bcc751817d4b186023ac44 (diff) | |
| parent | cbaa9f60d5d5c3af10f94e0d49789d5b82341a4a (diff) | |
Merge branch 'topic/isa' into topic/misc
Diffstat (limited to 'arch/arm/mach-imx/mx1-camera-fiq.S')
| -rw-r--r-- | arch/arm/mach-imx/mx1-camera-fiq.S | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mx1-camera-fiq.S b/arch/arm/mach-imx/mx1-camera-fiq.S new file mode 100644 index 00000000000..9c69aa65bf1 --- /dev/null +++ b/arch/arm/mach-imx/mx1-camera-fiq.S @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2008 Paulius Zaleckas <paulius.zaleckas@teltonika.lt> + * + * Based on linux/arch/arm/lib/floppydma.S + * Copyright (C) 1995, 1996 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/linkage.h> +#include <asm/assembler.h> + + .text + .global mx1_camera_sof_fiq_end + .global mx1_camera_sof_fiq_start +mx1_camera_sof_fiq_start: + @ enable dma + ldr r12, [r9] + orr r12, r12, #0x00000001 + str r12, [r9] + @ unmask DMA interrupt + ldr r12, [r8] + bic r12, r12, r13 + str r12, [r8] + @ disable SOF interrupt + ldr r12, [r10] + bic r12, r12, #0x00010000 + str r12, [r10] + @ clear SOF flag + mov r12, #0x00010000 + str r12, [r11] + @ return from FIQ + subs pc, lr, #4 +mx1_camera_sof_fiq_end: |