include/linux/remoteproc/st_slim_rproc.h

   1 /*
   2  * SLIM core rproc driver header
   3  *
   4  * Copyright (C) 2016 STMicroelectronics
   5  *
   6  * Author: Peter Griffin <peter.griffin@linaro.org>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  */
  13 #ifndef _ST_REMOTEPROC_SLIM_H
  14 #define _ST_REMOTEPROC_SLIM_H
  15
  16 #define ST_SLIM_MEM_MAX 2
  17 #define ST_SLIM_MAX_CLK 4
  18
  19 enum {
  20         ST_SLIM_DMEM,
  21         ST_SLIM_IMEM,
  22 };
  23
  24 /**
  25  * struct st_slim_mem - slim internal memory structure
  26  * @cpu_addr: MPU virtual address of the memory region
  27  * @bus_addr: Bus address used to access the memory region
  28  * @size: Size of the memory region
  29  */
  30 struct st_slim_mem {
  31         void __iomem *cpu_addr;
  32         phys_addr_t bus_addr;
  33         size_t size;
  34 };
  35
  36 /**
  37  * struct st_slim_rproc - SLIM slim core
  38  * @rproc: rproc handle
  39  * @mem: slim memory information
  40  * @slimcore: slim slimcore regs
  41  * @peri: slim peripheral regs
  42  * @clks: slim clocks
  43  */
  44 struct st_slim_rproc {
  45         struct rproc *rproc;
  46         struct st_slim_mem mem[ST_SLIM_MEM_MAX];
  47         void __iomem *slimcore;
  48         void __iomem *peri;
  49
  50         /* st_slim_rproc private */
  51         struct clk *clks[ST_SLIM_MAX_CLK];
  52 };
  53
  54 struct st_slim_rproc *st_slim_rproc_alloc(struct platform_device *pdev,
  55                                         char *fw_name);
  56 void st_slim_rproc_put(struct st_slim_rproc *slim_rproc);
  57
  58 #endif