| 1 | /* |
|---|
| 2 | * Freescale Memory Controller kernel module |
|---|
| 3 | * |
|---|
| 4 | * Author: York Sun <york.sun@nxp.com> |
|---|
| 5 | * |
|---|
| 6 | * Copyright 2016 NXP Semiconductor |
|---|
| 7 | * |
|---|
| 8 | * Derived from mpc85xx_edac.c |
|---|
| 9 | * Author: Dave Jiang <djiang@mvista.com> |
|---|
| 10 | * |
|---|
| 11 | * 2006-2007 (c) MontaVista Software, Inc. This file is licensed under |
|---|
| 12 | * the terms of the GNU General Public License version 2. This program |
|---|
| 13 | * is licensed "as is" without any warranty of any kind, whether express |
|---|
| 14 | * or implied. |
|---|
| 15 | */ |
|---|
| 16 | |
|---|
| 17 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
|---|
| 18 | |
|---|
| 19 | #include "edac_module.h" |
|---|
| 20 | #include "fsl_ddr_edac.h" |
|---|
| 21 | |
|---|
| 22 | static const struct of_device_id fsl_ddr_mc_err_of_match[] = { |
|---|
| 23 | { .compatible = "fsl,qoriq-memory-controller" , }, |
|---|
| 24 | {}, |
|---|
| 25 | }; |
|---|
| 26 | MODULE_DEVICE_TABLE(of, fsl_ddr_mc_err_of_match); |
|---|
| 27 | |
|---|
| 28 | static struct platform_driver fsl_ddr_mc_err_driver = { |
|---|
| 29 | .probe = fsl_mc_err_probe, |
|---|
| 30 | .remove_new = fsl_mc_err_remove, |
|---|
| 31 | .driver = { |
|---|
| 32 | .name = "fsl_ddr_mc_err" , |
|---|
| 33 | .of_match_table = fsl_ddr_mc_err_of_match, |
|---|
| 34 | }, |
|---|
| 35 | }; |
|---|
| 36 | |
|---|
| 37 | static int __init fsl_ddr_mc_init(void) |
|---|
| 38 | { |
|---|
| 39 | int res; |
|---|
| 40 | |
|---|
| 41 | if (ghes_get_devices()) |
|---|
| 42 | return -EBUSY; |
|---|
| 43 | |
|---|
| 44 | /* make sure error reporting method is sane */ |
|---|
| 45 | switch (edac_op_state) { |
|---|
| 46 | case EDAC_OPSTATE_POLL: |
|---|
| 47 | case EDAC_OPSTATE_INT: |
|---|
| 48 | break; |
|---|
| 49 | default: |
|---|
| 50 | edac_op_state = EDAC_OPSTATE_INT; |
|---|
| 51 | break; |
|---|
| 52 | } |
|---|
| 53 | |
|---|
| 54 | res = platform_driver_register(&fsl_ddr_mc_err_driver); |
|---|
| 55 | if (res) { |
|---|
| 56 | pr_err("MC fails to register\n" ); |
|---|
| 57 | return res; |
|---|
| 58 | } |
|---|
| 59 | |
|---|
| 60 | return 0; |
|---|
| 61 | } |
|---|
| 62 | |
|---|
| 63 | module_init(fsl_ddr_mc_init); |
|---|
| 64 | |
|---|
| 65 | static void __exit fsl_ddr_mc_exit(void) |
|---|
| 66 | { |
|---|
| 67 | platform_driver_unregister(&fsl_ddr_mc_err_driver); |
|---|
| 68 | } |
|---|
| 69 | |
|---|
| 70 | module_exit(fsl_ddr_mc_exit); |
|---|
| 71 | |
|---|
| 72 | MODULE_LICENSE("GPL" ); |
|---|
| 73 | MODULE_AUTHOR("NXP Semiconductor" ); |
|---|
| 74 | module_param(edac_op_state, int, 0444); |
|---|
| 75 | MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll, 2=Interrupt" ); |
|---|
| 76 | |
|---|
