linux-imx

/*

 * Remote processor machine-specific module for DA8XX

 *

 * Copyright (C) 2013 Texas Instruments, 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.

 */

​

#include <linux/bitops.h>

#include <linux/clk.h>

#include <linux/reset.h>

#include <linux/err.h>

#include <linux/interrupt.h>

#include <linux/io.h>

#include <linux/irq.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/of_reserved_mem.h>

#include <linux/platform_device.h>

#include <linux/remoteproc.h>

​

#include "remoteproc_internal.h"

​

static char *da8xx_fw_name;

module_param(da8xx_fw_name, charp, 0444);

MODULE_PARM_DESC(da8xx_fw_name,

         "Name of DSP firmware file in /lib/firmware (if not specified defaults to 'rproc-dsp-fw')");

​

/*

 * OMAP-L138 Technical References:

 * http://www.ti.com/product/omap-l138

 */

#define SYSCFG_CHIPSIG0 BIT(0)

#define SYSCFG_CHIPSIG1 BIT(1)

#define SYSCFG_CHIPSIG2 BIT(2)

#define SYSCFG_CHIPSIG3 BIT(3)

#define SYSCFG_CHIPSIG4 BIT(4)

​

#define DA8XX_RPROC_LOCAL_ADDRESS_MASK  (SZ_16M - 1)

​

/**

 * struct da8xx_rproc_mem - internal memory structure

 * @cpu_addr: MPU virtual address of the memory region

 * @bus_addr: Bus address used to access the memory region

 * @dev_addr: Device address of the memory region from DSP view

 * @size: Size of the memory region

 */

struct da8xx_rproc_mem {

    void __iomem *cpu_addr;

    phys_addr_t bus_addr;

    u32 dev_addr;

    size_t size;

};

​

/**

 * struct da8xx_rproc - da8xx remote processor instance state

 * @rproc: rproc handle

 * @mem: internal memory regions data

 * @num_mems: number of internal memory regions

 * @dsp_clk: placeholder for platform's DSP clk

 * @ack_fxn: chip-specific ack function for ack'ing irq