linux-imx

/*

 * Freescale Memory Controller kernel module

 *

 * Support Power-based SoCs including MPC85xx, MPC86xx, MPC83xx and

 * ARM-based Layerscape SoCs including LS2xxx and LS1021A. Originally

 * split out from mpc85xx_edac EDAC driver.

 *

 * Parts Copyrighted (c) 2013 by Freescale Semiconductor, Inc.

 *

 * Author: Dave Jiang <djiang@mvista.com>

 *

 * 2006-2007 (c) MontaVista Software, Inc. This file is licensed under

 * the terms of the GNU General Public License version 2. This program

 * is licensed "as is" without any warranty of any kind, whether express

 * or implied.

 */

#include <linux/module.h>

#include <linux/init.h>

#include <linux/interrupt.h>

#include <linux/ctype.h>

#include <linux/io.h>

#include <linux/mod_devicetable.h>

#include <linux/edac.h>

#include <linux/smp.h>

#include <linux/gfp.h>

​

#include <linux/of_platform.h>

#include <linux/of_device.h>

#include <linux/of_address.h>

#include "edac_module.h"

#include "fsl_ddr_edac.h"

​

#define EDAC_MOD_STR    "fsl_ddr_edac"

​

static int edac_mc_idx;

​

static u32 orig_ddr_err_disable;

static u32 orig_ddr_err_sbe;

static bool little_endian;

​

static inline u32 ddr_in32(void __iomem *addr)

{

    return little_endian ? ioread32(addr) : ioread32be(addr);

}

​

static inline void ddr_out32(void __iomem *addr, u32 value)

{

    if (little_endian)

        iowrite32(value, addr);

    else

        iowrite32be(value, addr);

}

​

#ifdef CONFIG_EDAC_DEBUG

/************************ MC SYSFS parts ***********************************/

​

#define to_mci(k) container_of(k, struct mem_ctl_info, dev)

​

static ssize_t fsl_mc_inject_data_hi_show(struct device *dev,

                      struct device_attribute *mattr,

                      char *data)

{

    struct mem_ctl_info *mci = to_mci(dev);