include/linux/amba/pl330.h

   1 /* linux/include/linux/amba/pl330.h
   2  *
   3  * Copyright (C) 2010 Samsung Electronics Co. Ltd.
   4  *      Jaswinder Singh <jassi.brar@samsung.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  */
  11
  12 #ifndef __AMBA_PL330_H_
  13 #define __AMBA_PL330_H_
  14
  15 #include <asm/hardware/pl330.h>
  16
  17 struct dma_pl330_peri {
  18         /*
  19          * Peri_Req i/f of the DMAC that is
  20          * peripheral could be reached from.
  21          */
  22         u8 peri_id; /* {0, 31} */
  23         enum pl330_reqtype rqtype;
  24
  25         /* For M->D and D->M Channels */
  26         int burst_sz; /* in power of 2 */
  27         dma_addr_t fifo_addr;
  28 };
  29
  30 struct dma_pl330_platdata {
  31         /*
  32          * Number of valid peripherals connected to DMAC.
  33          * This may be different from the value read from
  34          * CR0, as the PL330 implementation might have 'holes'
  35          * in the peri list or the peri could also be reached
  36          * from another DMAC which the platform prefers.
  37          */
  38         u8 nr_valid_peri;
  39         /* Array of valid peripherals */
  40         struct dma_pl330_peri *peri;
  41         /* Bytes to allocate for MC buffer */
  42         unsigned mcbuf_sz;
  43 };
  44
  45 #endif  /* __AMBA_PL330_H_ */