1 files changed, 70 insertions, 0 deletions

diff --git a/arch/arm/plat-s3c64xx/include/plat/dma-plat.h b/arch/arm/plat-s3c64xx/include/plat/dma-plat.h
new file mode 100644
index 000000000000..0c30dd986725
--- /dev/null
+++ b/arch/arm/plat-s3c64xx/include/plat/dma-plat.h
@@ -0,0 +1,70 @@
+/* linux/arch/arm/plat-s3c64xx/include/plat/dma-plat.h
+ *
+ * Copyright 2009 Openmoko, Inc.
+ * Copyright 2009 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * S3C64XX DMA core
+ *
+ * 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.
+*/
+
+#define DMACH_LOW_LEVEL (1<<28) /* use this to specifiy hardware ch no */
+
+struct s3c64xx_dma_buff;
+
+/** s3c64xx_dma_buff - S3C64XX DMA buffer descriptor
+ * @next: Pointer to next buffer in queue or ring.
+ * @pw: Client provided identifier
+ * @lli: Pointer to hardware descriptor this buffer is associated with.
+ * @lli_dma: Hardare address of the descriptor.
+ */
+struct s3c64xx_dma_buff {
+        struct s3c64xx_dma_buff *next;
+
+        void                    *pw;
+        struct pl080_lli        *lli;
+        dma_addr_t               lli_dma;
+};
+
+struct s3c64xx_dmac;
+
+struct s3c2410_dma_chan {
+        unsigned char            number;      /* number of this dma channel */
+        unsigned char            in_use;      /* channel allocated */
+        unsigned char            bit;         /* bit for enable/disable/etc */
+        unsigned char            hw_width;
+        unsigned char            peripheral;
+
+        unsigned int             flags;
+        enum s3c2410_dmasrc      source;
+
+
+        dma_addr_t              dev_addr;
+
+        struct s3c2410_dma_client *client;
+        struct s3c64xx_dmac     *dmac;          /* pointer to controller */
+
+        void __iomem            *regs;
+
+        /* cdriver callbacks */
+        s3c2410_dma_cbfn_t       callback_fn;   /* buffer done callback */
+        s3c2410_dma_opfn_t       op_fn;         /* channel op callback */
+
+        /* buffer list and information */
+        struct s3c64xx_dma_buff *curr;          /* current dma buffer */
+        struct s3c64xx_dma_buff *next;          /* next buffer to load */
+        struct s3c64xx_dma_buff *end;           /* end of queue */
+
+        /* note, when channel is running in circular mode, curr is the
+         * first buffer enqueued, end is the last and curr is where the
+         * last buffer-done event is set-at. The buffers are not freed
+         * and the last buffer hardware descriptor points back to the
+         * first.
+         */
+};
+
+#include <plat/dma-core.h>