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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-footbridge/dma.c
downloadconfigs-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
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 00000000000..a6b1396b095
--- /dev/null
+++ b/arch/arm/mach-footbridge/dma.c
@@ -0,0 +1,54 @@
+/*
+ * 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 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
+}