Viewing file:  dma-footbridge.c (1.05 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/*
* 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/sched.h>
#include <linux/init.h>
#include <asm/dma.h>
#include <asm/io.h>
#include <asm/mach/dma.h>
#include <asm/hardware/dec21285.h>
#if 0
static 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,
};
#endif
void __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
}
|