linux-imx

/*

 * CoreNet Coherency Fabric error reporting

 *

 * Copyright 2014 Freescale Semiconductor Inc.

 *

 * 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.

 */

​

#include <linux/interrupt.h>

#include <linux/io.h>

#include <linux/irq.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/of_address.h>

#include <linux/of_device.h>

#include <linux/of_irq.h>

#include <linux/platform_device.h>

​

enum ccf_version {

    CCF1,

    CCF2,

};

​

struct ccf_info {

    enum ccf_version version;

    int err_reg_offs;

    bool has_brr;

};

​

static const struct ccf_info ccf1_info = {

    .version = CCF1,

    .err_reg_offs = 0xa00,

    .has_brr = false,

};

​

static const struct ccf_info ccf2_info = {

    .version = CCF2,

    .err_reg_offs = 0xe40,

    .has_brr = true,

};

​

/*

 * This register is present but not documented, with different values for

 * IP_ID, on other chips with fsl,corenet2-cf such as t4240 and b4860.

 */

#define CCF_BRR         0xbf8

#define CCF_BRR_IPID        0xffff0000

#define CCF_BRR_IPID_T1040  0x09310000

​

static const struct of_device_id ccf_matches[] = {

    {

        .compatible = "fsl,corenet1-cf",

        .data = &ccf1_info,

    },

    {

        .compatible = "fsl,corenet2-cf",

        .data = &ccf2_info,

    },

    {}

};