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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-footbridge/dma.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/arm/mach-footbridge/dma.c')
-rw-r--r--arch/arm/mach-footbridge/dma.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-footbridge/dma.c b/arch/arm/mach-footbridge/dma.c
new file mode 100644
index 000000000000..a6b1396b0951
--- /dev/null
+++ b/arch/arm/mach-footbridge/dma.c
@@ -0,0 +1,54 @@
1/*
2 * linux/arch/arm/kernel/dma-ebsa285.c
3 *
4 * Copyright (C) 1998 Phil Blundell
5 *
6 * DMA functions specific to EBSA-285/CATS architectures
7 *
8 * Changelog:
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.
12 */
13#include <linux/config.h>
14#include <linux/init.h>
15
16#include <asm/dma.h>
17#include <asm/io.h>
18
19#include <asm/mach/dma.h>
20#include <asm/hardware/dec21285.h>
21
22#if 0
23static int fb_dma_request(dmach_t channel, dma_t *dma)
24{
25 return -EINVAL;
26}
27
28static void fb_dma_enable(dmach_t channel, dma_t *dma)
29{
30}
31
32static void fb_dma_disable(dmach_t channel, dma_t *dma)
33{
34}
35
36static struct dma_ops fb_dma_ops = {
37 .type = "fb",
38 .request = fb_dma_request,
39 .enable = fb_dma_enable,
40 .disable = fb_dma_disable,
41};
42#endif
43
44void __init arch_dma_init(dma_t *dma)
45{
46#if 0
47 dma[_DC21285_DMA(0)].d_ops = &fb_dma_ops;
48 dma[_DC21285_DMA(1)].d_ops = &fb_dma_ops;
49#endif
50#ifdef CONFIG_ISA_DMA
51 if (footbridge_cfn_mode())
52 isa_init_dma(dma + _ISA_DMA(0));
53#endif
54}