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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-30 09:12:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-30 09:12:43 -0700
commite38c1e54ce51059a1aa8744c895762906cf43b32 (patch)
tree6af00994b3d07da2db3419346f740ae06f3cfe7e /include/linux/amba
parent3e9345edd8562dc4f9bbca88a598c91c8779a9c4 (diff)
parent7b8ddb06e54ad98edeb7951f317aee4d1feda9d6 (diff)
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: DMAENGINE: DMA40 U8500 platform configuration DMA: PL330: Add dma api driver
Diffstat (limited to 'include/linux/amba')
-rw-r--r--include/linux/amba/pl330.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/include/linux/amba/pl330.h b/include/linux/amba/pl330.h
new file mode 100644
index 000000000000..cbee7de7dd36
--- /dev/null
+++ b/include/linux/amba/pl330.h
@@ -0,0 +1,45 @@
+/* linux/include/linux/amba/pl330.h
+ *
+ * Copyright (C) 2010 Samsung Electronics Co. Ltd.
+ * Jaswinder Singh <jassi.brar@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __AMBA_PL330_H_
+#define __AMBA_PL330_H_
+
+#include <asm/hardware/pl330.h>
+
+struct dma_pl330_peri {
+ /*
+ * Peri_Req i/f of the DMAC that is
+ * peripheral could be reached from.
+ */
+ u8 peri_id; /* {0, 31} */
+ enum pl330_reqtype rqtype;
+
+ /* For M->D and D->M Channels */
+ int burst_sz; /* in power of 2 */
+ dma_addr_t fifo_addr;
+};
+
+struct dma_pl330_platdata {
+ /*
+ * Number of valid peripherals connected to DMAC.
+ * This may be different from the value read from
+ * CR0, as the PL330 implementation might have 'holes'
+ * in the peri list or the peri could also be reached
+ * from another DMAC which the platform prefers.
+ */
+ u8 nr_valid_peri;
+ /* Array of valid peripherals */
+ struct dma_pl330_peri *peri;
+ /* Bytes to allocate for MC buffer */
+ unsigned mcbuf_sz;
+};
+
+#endif /* __AMBA_PL330_H_ */