Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk

1 files changed, 50 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/include/mach/dma.h b/arch/arm/mach-pxa/include/mach/dma.h
new file mode 100644
index 00000000000..955bfe60606
--- /dev/null
+++ b/arch/arm/mach-pxa/include/mach/dma.h
@@ -0,0 +1,50 @@
+/*
+ *  arch/arm/mach-pxa/include/mach/dma.h
+ *
+ *  Author:	Nicolas Pitre
+ *  Created:	Jun 15, 2001
+ *  Copyright:	MontaVista Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_ARCH_DMA_H
+#define __ASM_ARCH_DMA_H
+
+/*
+ * Descriptor structure for PXA's DMA engine
+ * Note: this structure must always be aligned to a 16-byte boundary.
+ */
+
+typedef struct pxa_dma_desc {
+	volatile u32 ddadr;	/* Points to the next descriptor + flags */
+	volatile u32 dsadr;	/* DSADR value for the current transfer */
+	volatile u32 dtadr;	/* DTADR value for the current transfer */
+	volatile u32 dcmd;	/* DCMD value for the current transfer */
+} pxa_dma_desc;
+
+typedef enum {
+	DMA_PRIO_HIGH = 0,
+	DMA_PRIO_MEDIUM = 1,
+	DMA_PRIO_LOW = 2
+} pxa_dma_prio;
+
+#if defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)
+#define HAVE_ARCH_PCI_SET_DMA_MASK	1
+#endif
+
+/*
+ * DMA registration
+ */
+
+int __init pxa_init_dma(int num_ch);
+
+int pxa_request_dma (char *name,
+			 pxa_dma_prio prio,
+			 void (*irq_handler)(int, void *),
+			 void *data);
+
+void pxa_free_dma (int dma_ch);
+
+#endif /* _ASM_ARCH_DMA_H */