linux-imx

/*

 * APM X-Gene SoC EDAC (error detection and correction)

 *

 * Copyright (c) 2015, Applied Micro Circuits Corporation

 * Author: Feng Kan <fkan@apm.com>

 *         Loc Ho <lho@apm.com>

 *

 * 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.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */

​

#include <linux/ctype.h>

#include <linux/edac.h>

#include <linux/interrupt.h>

#include <linux/mfd/syscon.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/of_address.h>

#include <linux/regmap.h>

​

#include "edac_module.h"

​

#define EDAC_MOD_STR            "xgene_edac"

​

/* Global error configuration status registers (CSR) */

#define PCPHPERRINTSTS          0x0000

#define PCPHPERRINTMSK          0x0004

#define  MCU_CTL_ERR_MASK       BIT(12)

#define  IOB_PA_ERR_MASK        BIT(11)

#define  IOB_BA_ERR_MASK        BIT(10)

#define  IOB_XGIC_ERR_MASK      BIT(9)

#define  IOB_RB_ERR_MASK        BIT(8)

#define  L3C_UNCORR_ERR_MASK        BIT(5)

#define  MCU_UNCORR_ERR_MASK        BIT(4)

#define  PMD3_MERR_MASK         BIT(3)

#define  PMD2_MERR_MASK         BIT(2)

#define  PMD1_MERR_MASK         BIT(1)

#define  PMD0_MERR_MASK         BIT(0)

#define PCPLPERRINTSTS          0x0008

#define PCPLPERRINTMSK          0x000C

#define  CSW_SWITCH_TRACE_ERR_MASK  BIT(2)

#define  L3C_CORR_ERR_MASK      BIT(1)

#define  MCU_CORR_ERR_MASK      BIT(0)

#define MEMERRINTSTS            0x0010

#define MEMERRINTMSK            0x0014

​

struct xgene_edac {

    struct device       *dev;

    struct regmap       *csw_map;

    struct regmap       *mcba_map;

    struct regmap       *mcbb_map;

    struct regmap       *efuse_map;

    struct regmap       *rb_map;