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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - arch/arm/mach-footbridge/dma.c
2 * linux/arch/arm/kernel/dma-ebsa285.c
4 * Copyright (C) 1998 Phil Blundell
6 * DMA functions specific to EBSA-285/CATS architectures
9 * 09-Nov-1998 RMK Split out ISA DMA functions to dma-isa.c
10 * 17-Mar-1999 RMK Allow any EBSA285-like architecture to have
11 * ISA DMA controllers.
13 #include <linux/init.h>
15 #include <linux/spinlock.h>
16 #include <linux/scatterlist.h>
20 #include <asm/mach/dma.h>
21 #include <asm/hardware/dec21285.h>
24 static int fb_dma_request(unsigned int chan
, dma_t
*dma
)
29 static void fb_dma_enable(unsigned int chan
, dma_t
*dma
)
33 static void fb_dma_disable(unsigned int chan
, dma_t
*dma
)
37 static struct dma_ops fb_dma_ops
= {
39 .request
= fb_dma_request
,
40 .enable
= fb_dma_enable
,
41 .disable
= fb_dma_disable
,
45 static int __init
fb_dma_init(void)
48 dma
[_DC21285_DMA(0)].d_ops
= &fb_dma_ops
;
49 dma
[_DC21285_DMA(1)].d_ops
= &fb_dma_ops
;
52 if (footbridge_cfn_mode())
57 core_initcall(fb_dma_init
);