/* *  linux/arch/arm/kernel/dma-ebsa285.c * *  Copyright (C) 1998 Phil Blundell * * DMA functions specific to EBSA-285/CATS architectures * *  Changelog: *   09-Nov-1998 RMK	Split out ISA DMA functions to dma-isa.c *   17-Mar-1999 RMK	Allow any EBSA285-like architecture to have *			ISA DMA controllers. */#include <linux/config.h>#include <linux/init.h>#include <asm/dma.h>#include <asm/io.h>#include <asm/mach/dma.h>#include <asm/hardware/dec21285.h>#if 0static int fb_dma_request(dmach_t channel, dma_t *dma){	return -EINVAL;}static void fb_dma_enable(dmach_t channel, dma_t *dma){}static void fb_dma_disable(dmach_t channel, dma_t *dma){}static struct dma_ops fb_dma_ops = {	.type		= "fb",	.request	= fb_dma_request,	.enable		= fb_dma_enable,	.disable	= fb_dma_disable,};#endifvoid __init arch_dma_init(dma_t *dma){#if 0	dma[_DC21285_DMA(0)].d_ops = &fb_dma_ops;	dma[_DC21285_DMA(1)].d_ops = &fb_dma_ops;#endif#ifdef CONFIG_ISA_DMA	if (footbridge_cfn_mode())		isa_init_dma(dma + _ISA_DMA(0));#endif}