forked from Minki/linux
588cb03ea2
Add a private data structure for Arria10 L2 cache ECC and the probe function for it. The Arria10 ECC device IRQs are in a shared register so the ECC Manager parent/child relationship requires a different probe function. Signed-off-by: Thor Thayer <tthayer@opensource.altera.com> Cc: devicetree@vger.kernel.org Cc: dinguyen@opensource.altera.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux@arm.linux.org.uk Cc: linux-edac <linux-edac@vger.kernel.org> Link: http://lkml.kernel.org/r/1458576106-24505-8-git-send-email-tthayer@opensource.altera.com Signed-off-by: Borislav Petkov <bp@suse.de>
290 lines
8.9 KiB
C
290 lines
8.9 KiB
C
/*
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*
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* Copyright (C) 2015 Altera Corporation
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _ALTERA_EDAC_H
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#define _ALTERA_EDAC_H
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#include <linux/edac.h>
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#include <linux/types.h>
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/* SDRAM Controller CtrlCfg Register */
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#define CV_CTLCFG_OFST 0x00
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/* SDRAM Controller CtrlCfg Register Bit Masks */
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#define CV_CTLCFG_ECC_EN 0x400
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#define CV_CTLCFG_ECC_CORR_EN 0x800
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#define CV_CTLCFG_GEN_SB_ERR 0x2000
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#define CV_CTLCFG_GEN_DB_ERR 0x4000
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#define CV_CTLCFG_ECC_AUTO_EN (CV_CTLCFG_ECC_EN)
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/* SDRAM Controller Address Width Register */
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#define CV_DRAMADDRW_OFST 0x2C
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/* SDRAM Controller Address Widths Field Register */
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#define DRAMADDRW_COLBIT_MASK 0x001F
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#define DRAMADDRW_COLBIT_SHIFT 0
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#define DRAMADDRW_ROWBIT_MASK 0x03E0
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#define DRAMADDRW_ROWBIT_SHIFT 5
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#define CV_DRAMADDRW_BANKBIT_MASK 0x1C00
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#define CV_DRAMADDRW_BANKBIT_SHIFT 10
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#define CV_DRAMADDRW_CSBIT_MASK 0xE000
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#define CV_DRAMADDRW_CSBIT_SHIFT 13
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/* SDRAM Controller Interface Data Width Register */
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#define CV_DRAMIFWIDTH_OFST 0x30
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/* SDRAM Controller Interface Data Width Defines */
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#define CV_DRAMIFWIDTH_16B_ECC 24
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#define CV_DRAMIFWIDTH_32B_ECC 40
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/* SDRAM Controller DRAM Status Register */
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#define CV_DRAMSTS_OFST 0x38
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/* SDRAM Controller DRAM Status Register Bit Masks */
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#define CV_DRAMSTS_SBEERR 0x04
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#define CV_DRAMSTS_DBEERR 0x08
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#define CV_DRAMSTS_CORR_DROP 0x10
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/* SDRAM Controller DRAM IRQ Register */
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#define CV_DRAMINTR_OFST 0x3C
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/* SDRAM Controller DRAM IRQ Register Bit Masks */
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#define CV_DRAMINTR_INTREN 0x01
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#define CV_DRAMINTR_SBEMASK 0x02
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#define CV_DRAMINTR_DBEMASK 0x04
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#define CV_DRAMINTR_CORRDROPMASK 0x08
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#define CV_DRAMINTR_INTRCLR 0x10
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/* SDRAM Controller Single Bit Error Count Register */
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#define CV_SBECOUNT_OFST 0x40
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/* SDRAM Controller Double Bit Error Count Register */
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#define CV_DBECOUNT_OFST 0x44
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/* SDRAM Controller ECC Error Address Register */
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#define CV_ERRADDR_OFST 0x48
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/*-----------------------------------------*/
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/* SDRAM Controller EccCtrl Register */
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#define A10_ECCCTRL1_OFST 0x00
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/* SDRAM Controller EccCtrl Register Bit Masks */
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#define A10_ECCCTRL1_ECC_EN 0x001
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#define A10_ECCCTRL1_CNT_RST 0x010
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#define A10_ECCCTRL1_AWB_CNT_RST 0x100
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#define A10_ECC_CNT_RESET_MASK (A10_ECCCTRL1_CNT_RST | \
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A10_ECCCTRL1_AWB_CNT_RST)
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/* SDRAM Controller Address Width Register */
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#define CV_DRAMADDRW 0xFFC2502C
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#define A10_DRAMADDRW 0xFFCFA0A8
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/* SDRAM Controller Address Widths Field Register */
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#define DRAMADDRW_COLBIT_MASK 0x001F
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#define DRAMADDRW_COLBIT_SHIFT 0
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#define DRAMADDRW_ROWBIT_MASK 0x03E0
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#define DRAMADDRW_ROWBIT_SHIFT 5
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#define CV_DRAMADDRW_BANKBIT_MASK 0x1C00
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#define CV_DRAMADDRW_BANKBIT_SHIFT 10
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#define CV_DRAMADDRW_CSBIT_MASK 0xE000
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#define CV_DRAMADDRW_CSBIT_SHIFT 13
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#define A10_DRAMADDRW_BANKBIT_MASK 0x3C00
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#define A10_DRAMADDRW_BANKBIT_SHIFT 10
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#define A10_DRAMADDRW_GRPBIT_MASK 0xC000
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#define A10_DRAMADDRW_GRPBIT_SHIFT 14
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#define A10_DRAMADDRW_CSBIT_MASK 0x70000
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#define A10_DRAMADDRW_CSBIT_SHIFT 16
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/* SDRAM Controller Interface Data Width Register */
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#define CV_DRAMIFWIDTH 0xFFC25030
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#define A10_DRAMIFWIDTH 0xFFCFB008
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/* SDRAM Controller Interface Data Width Defines */
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#define CV_DRAMIFWIDTH_16B_ECC 24
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#define CV_DRAMIFWIDTH_32B_ECC 40
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#define A10_DRAMIFWIDTH_16B 0x0
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#define A10_DRAMIFWIDTH_32B 0x1
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#define A10_DRAMIFWIDTH_64B 0x2
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/* SDRAM Controller DRAM IRQ Register */
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#define A10_ERRINTEN_OFST 0x10
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/* SDRAM Controller DRAM IRQ Register Bit Masks */
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#define A10_ERRINTEN_SERRINTEN 0x01
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#define A10_ERRINTEN_DERRINTEN 0x02
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#define A10_ECC_IRQ_EN_MASK (A10_ERRINTEN_SERRINTEN | \
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A10_ERRINTEN_DERRINTEN)
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/* SDRAM Interrupt Mode Register */
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#define A10_INTMODE_OFST 0x1C
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#define A10_INTMODE_SB_INT 1
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/* SDRAM Controller Error Status Register */
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#define A10_INTSTAT_OFST 0x20
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/* SDRAM Controller Error Status Register Bit Masks */
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#define A10_INTSTAT_SBEERR 0x01
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#define A10_INTSTAT_DBEERR 0x02
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/* SDRAM Controller ECC Error Address Register */
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#define A10_DERRADDR_OFST 0x2C
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#define A10_SERRADDR_OFST 0x30
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/* SDRAM Controller ECC Diagnostic Register */
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#define A10_DIAGINTTEST_OFST 0x24
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#define A10_DIAGINT_TSERRA_MASK 0x0001
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#define A10_DIAGINT_TDERRA_MASK 0x0100
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#define A10_SBERR_IRQ 34
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#define A10_DBERR_IRQ 32
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/* SDRAM Single Bit Error Count Compare Set Register */
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#define A10_SERRCNTREG_OFST 0x3C
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#define A10_SYMAN_INTMASK_CLR 0xFFD06098
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#define A10_INTMASK_CLR_OFST 0x10
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#define A10_DDR0_IRQ_MASK BIT(17)
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struct altr_sdram_prv_data {
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int ecc_ctrl_offset;
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int ecc_ctl_en_mask;
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int ecc_cecnt_offset;
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int ecc_uecnt_offset;
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int ecc_stat_offset;
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int ecc_stat_ce_mask;
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int ecc_stat_ue_mask;
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int ecc_saddr_offset;
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int ecc_daddr_offset;
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int ecc_irq_en_offset;
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int ecc_irq_en_mask;
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int ecc_irq_clr_offset;
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int ecc_irq_clr_mask;
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int ecc_cnt_rst_offset;
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int ecc_cnt_rst_mask;
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struct edac_dev_sysfs_attribute *eccmgr_sysfs_attr;
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int ecc_enable_mask;
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int ce_set_mask;
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int ue_set_mask;
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int ce_ue_trgr_offset;
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};
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/* Altera SDRAM Memory Controller data */
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struct altr_sdram_mc_data {
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struct regmap *mc_vbase;
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int sb_irq;
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int db_irq;
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const struct altr_sdram_prv_data *data;
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};
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/************************** EDAC Device Defines **************************/
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/***** General Device Trigger Defines *****/
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#define ALTR_UE_TRIGGER_CHAR 'U' /* Trigger for UE */
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#define ALTR_TRIGGER_READ_WRD_CNT 32 /* Line size x 4 */
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#define ALTR_TRIG_OCRAM_BYTE_SIZE 128 /* Line size x 4 */
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#define ALTR_TRIG_L2C_BYTE_SIZE 4096 /* Full Page */
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/******* Cyclone5 and Arria5 Defines *******/
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/* OCRAM ECC Management Group Defines */
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#define ALTR_MAN_GRP_OCRAM_ECC_OFFSET 0x04
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#define ALTR_OCR_ECC_REG_OFFSET 0x00
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#define ALTR_OCR_ECC_EN BIT(0)
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#define ALTR_OCR_ECC_INJS BIT(1)
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#define ALTR_OCR_ECC_INJD BIT(2)
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#define ALTR_OCR_ECC_SERR BIT(3)
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#define ALTR_OCR_ECC_DERR BIT(4)
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/* L2 ECC Management Group Defines */
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#define ALTR_MAN_GRP_L2_ECC_OFFSET 0x00
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#define ALTR_L2_ECC_REG_OFFSET 0x00
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#define ALTR_L2_ECC_EN BIT(0)
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#define ALTR_L2_ECC_INJS BIT(1)
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#define ALTR_L2_ECC_INJD BIT(2)
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/* Arria10 General ECC Block Module Defines */
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#define A10_SYSMGR_ECC_INTSTAT_SERR_OFST 0x9C
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#define A10_SYSMGR_ECC_INTSTAT_DERR_OFST 0xA0
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#define A10_SYSMGR_ECC_INTSTAT_L2 BIT(0)
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#define A10_SYSGMR_MPU_CLEAR_L2_ECC_OFST 0xA8
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#define A10_SYSGMR_MPU_CLEAR_L2_ECC_SB BIT(15)
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#define A10_SYSGMR_MPU_CLEAR_L2_ECC_MB BIT(31)
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/* Arria 10 L2 ECC Management Group Defines */
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#define ALTR_A10_L2_ECC_CTL_OFST 0x0
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#define ALTR_A10_L2_ECC_EN_CTL BIT(0)
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#define ALTR_A10_L2_ECC_STATUS 0xFFD060A4
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#define ALTR_A10_L2_ECC_STAT_OFST 0xA4
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#define ALTR_A10_L2_ECC_SERR_PEND BIT(0)
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#define ALTR_A10_L2_ECC_MERR_PEND BIT(0)
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#define ALTR_A10_L2_ECC_CLR_OFST 0x4
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#define ALTR_A10_L2_ECC_SERR_CLR BIT(15)
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#define ALTR_A10_L2_ECC_MERR_CLR BIT(31)
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#define ALTR_A10_L2_ECC_INJ_OFST ALTR_A10_L2_ECC_CTL_OFST
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#define ALTR_A10_L2_ECC_CE_INJ_MASK 0x00000101
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#define ALTR_A10_L2_ECC_UE_INJ_MASK 0x00010101
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struct altr_edac_device_dev;
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struct edac_device_prv_data {
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int (*setup)(struct altr_edac_device_dev *device);
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int ce_clear_mask;
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int ue_clear_mask;
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int irq_status_mask;
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char dbgfs_name[20];
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void * (*alloc_mem)(size_t size, void **other);
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void (*free_mem)(void *p, size_t size, void *other);
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int ecc_enable_mask;
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int ce_set_mask;
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int ue_set_mask;
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int set_err_ofst;
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irqreturn_t (*ecc_irq_handler)(struct altr_edac_device_dev *dci,
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bool sb);
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int trig_alloc_sz;
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};
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struct altr_edac_device_dev {
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struct list_head next;
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void __iomem *base;
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int sb_irq;
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int db_irq;
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const struct edac_device_prv_data *data;
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struct dentry *debugfs_dir;
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char *edac_dev_name;
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struct altr_arria10_edac *edac;
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struct edac_device_ctl_info *edac_dev;
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struct device ddev;
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int edac_idx;
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};
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struct altr_arria10_edac {
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struct device *dev;
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struct regmap *ecc_mgr_map;
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int sb_irq;
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int db_irq;
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struct list_head a10_ecc_devices;
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};
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#endif /* #ifndef _ALTERA_EDAC_H */
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