summaryrefslogtreecommitdiffstats
path: root/drivers/edac/altera_edac.h
diff options
context:
space:
mode:
authorThor Thayer <thor.thayer@linux.intel.com>2018-04-27 13:37:17 -0500
committerBorislav Petkov <bp@suse.de>2018-05-12 11:13:39 +0200
commit3dab6bd526871b9265c4374a5f30792bafa287e9 (patch)
tree26d5b08c4b00d734da0d3448bb91323e0a73c03c /drivers/edac/altera_edac.h
parentc7229b60ebe6c84f18c39c6d1b48b8b343f5e8bf (diff)
downloadlinux-3dab6bd526871b9265c4374a5f30792bafa287e9.tar.bz2
EDAC, altera: Add support for Stratix10 SDRAM EDAC
Support for Stratix10 SDRAM ECC requires the use of SMC calls to Secure Monitor for accessing registers. Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: catalin.marinas@arm.com Cc: devicetree@vger.kernel.org Cc: dinguyen@kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-edac <linux-edac@vger.kernel.org> Cc: mark.rutland@arm.com Cc: robh+dt@kernel.org Cc: will.deacon@arm.com Link: http://lkml.kernel.org/r/1524854238-19394-3-git-send-email-thor.thayer@linux.intel.com Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'drivers/edac/altera_edac.h')
-rw-r--r--drivers/edac/altera_edac.h126
1 files changed, 113 insertions, 13 deletions
diff --git a/drivers/edac/altera_edac.h b/drivers/edac/altera_edac.h
index cbc96290f743..747481081072 100644
--- a/drivers/edac/altera_edac.h
+++ b/drivers/edac/altera_edac.h
@@ -1,23 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
- *
+ * Copyright (C) 2017-2018, Intel Corporation
* Copyright (C) 2015 Altera Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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/>.
*/
#ifndef _ALTERA_EDAC_H
#define _ALTERA_EDAC_H
+#include <linux/arm-smccc.h>
#include <linux/edac.h>
#include <linux/types.h>
@@ -94,6 +84,7 @@
/* SDRAM Controller Address Width Register */
#define CV_DRAMADDRW 0xFFC2502C
#define A10_DRAMADDRW 0xFFCFA0A8
+#define S10_DRAMADDRW 0xF80110E0
/* SDRAM Controller Address Widths Field Register */
#define DRAMADDRW_COLBIT_MASK 0x001F
@@ -115,6 +106,7 @@
/* SDRAM Controller Interface Data Width Register */
#define CV_DRAMIFWIDTH 0xFFC25030
#define A10_DRAMIFWIDTH 0xFFCFB008
+#define S10_DRAMIFWIDTH 0xF8011008
/* SDRAM Controller Interface Data Width Defines */
#define CV_DRAMIFWIDTH_16B_ECC 24
@@ -164,6 +156,30 @@
#define A10_INTMASK_CLR_OFST 0x10
#define A10_DDR0_IRQ_MASK BIT(17)
+/************* Stratix10 Defines **************/
+
+/* SDRAM Controller EccCtrl Register */
+#define S10_ECCCTRL1_OFST 0xF8011100
+
+/* SDRAM Controller DRAM IRQ Register */
+#define S10_ERRINTEN_OFST 0xF8011110
+
+/* SDRAM Interrupt Mode Register */
+#define S10_INTMODE_OFST 0xF801111C
+
+/* SDRAM Controller Error Status Register */
+#define S10_INTSTAT_OFST 0xF8011120
+
+/* SDRAM Controller ECC Error Address Register */
+#define S10_DERRADDR_OFST 0xF801112C
+#define S10_SERRADDR_OFST 0xF8011130
+
+/* SDRAM Controller ECC Diagnostic Register */
+#define S10_DIAGINTTEST_OFST 0xF8011124
+
+/* SDRAM Single Bit Error Count Compare Set Register */
+#define S10_SERRCNTREG_OFST 0xF801113C
+
struct altr_sdram_prv_data {
int ecc_ctrl_offset;
int ecc_ctl_en_mask;
@@ -296,6 +312,16 @@ struct altr_sdram_mc_data {
/* A10 ECC Controller memory initialization timeout */
#define ALTR_A10_ECC_INIT_WATCHDOG_10US 10000
+/************* Stratix10 Defines **************/
+
+/* Stratix10 ECC Manager Defines */
+#define S10_SYSMGR_ECC_INTMASK_VAL_OFST 0xFFD12090
+#define S10_SYSMGR_ECC_INTMASK_SET_OFST 0xFFD12094
+#define S10_SYSMGR_ECC_INTMASK_CLR_OFST 0xFFD12098
+
+#define S10_SYSMGR_ECC_INTSTAT_SERR_OFST 0xFFD1209C
+#define S10_SYSMGR_ECC_INTSTAT_DERR_OFST 0xFFD120A0
+
struct altr_edac_device_dev;
struct edac_device_prv_data {
@@ -340,4 +366,78 @@ struct altr_arria10_edac {
struct list_head a10_ecc_devices;
};
+/*
+ * Functions specified by ARM SMC Calling convention:
+ *
+ * FAST call executes atomic operations, returns when the requested operation
+ * has completed.
+ * STD call starts a operation which can be preempted by a non-secure
+ * interrupt. The call can return before the requested operation has
+ * completed.
+ *
+ * a0..a7 is used as register names in the descriptions below, on arm32
+ * that translates to r0..r7 and on arm64 to w0..w7.
+ */
+
+#define INTEL_SIP_SMC_STD_CALL_VAL(func_num) \
+ ARM_SMCCC_CALL_VAL(ARM_SMCCC_STD_CALL, ARM_SMCCC_SMC_64, \
+ ARM_SMCCC_OWNER_SIP, (func_num))
+
+#define INTEL_SIP_SMC_FAST_CALL_VAL(func_num) \
+ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, ARM_SMCCC_SMC_64, \
+ ARM_SMCCC_OWNER_SIP, (func_num))
+
+#define INTEL_SIP_SMC_RETURN_UNKNOWN_FUNCTION 0xFFFFFFFF
+#define INTEL_SIP_SMC_STATUS_OK 0x0
+#define INTEL_SIP_SMC_REG_ERROR 0x5
+
+/*
+ * Request INTEL_SIP_SMC_REG_READ
+ *
+ * Read a protected register using SMCCC
+ *
+ * Call register usage:
+ * a0: INTEL_SIP_SMC_REG_READ.
+ * a1: register address.
+ * a2-7: not used.
+ *
+ * Return status:
+ * a0: INTEL_SIP_SMC_STATUS_OK, INTEL_SIP_SMC_REG_ERROR, or
+ * INTEL_SIP_SMC_RETURN_UNKNOWN_FUNCTION
+ * a1: Value in the register
+ * a2-3: not used.
+ */
+#define INTEL_SIP_SMC_FUNCID_REG_READ 7
+#define INTEL_SIP_SMC_REG_READ \
+ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_REG_READ)
+
+/*
+ * Request INTEL_SIP_SMC_REG_WRITE
+ *
+ * Write a protected register using SMCCC
+ *
+ * Call register usage:
+ * a0: INTEL_SIP_SMC_REG_WRITE.
+ * a1: register address
+ * a2: value to program into register.
+ * a3-7: not used.
+ *
+ * Return status:
+ * a0: INTEL_SIP_SMC_STATUS_OK, INTEL_SIP_SMC_REG_ERROR, or
+ * INTEL_SIP_SMC_RETURN_UNKNOWN_FUNCTION
+ * a1-3: not used.
+ */
+#define INTEL_SIP_SMC_FUNCID_REG_WRITE 8
+#define INTEL_SIP_SMC_REG_WRITE \
+ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_REG_WRITE)
+
+struct altr_stratix10_edac {
+ struct device *dev;
+ int sb_irq;
+ int db_irq;
+ struct irq_domain *domain;
+ struct irq_chip irq_chip;
+ struct list_head s10_ecc_devices;
+};
+
#endif /* #ifndef _ALTERA_EDAC_H */