summaryrefslogtreecommitdiff
path: root/arch/ppc/cpu/mpc83xx/ecc.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ppc/cpu/mpc83xx/ecc.c')
-rw-r--r--arch/ppc/cpu/mpc83xx/ecc.c390
1 files changed, 0 insertions, 390 deletions
diff --git a/arch/ppc/cpu/mpc83xx/ecc.c b/arch/ppc/cpu/mpc83xx/ecc.c
deleted file mode 100644
index f3942b4..0000000
--- a/arch/ppc/cpu/mpc83xx/ecc.c
+++ /dev/null
@@ -1,390 +0,0 @@
-/*
- * Copyright (C) 2007 Freescale Semiconductor, Inc.
- *
- * Dave Liu <daveliu@freescale.com>
- * based on the contribution of Marian Balakowicz <m8@semihalf.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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.
- */
-
-#include <common.h>
-#include <mpc83xx.h>
-#include <command.h>
-
-#if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD)
-void ecc_print_status(void)
-{
- volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
- volatile ddr83xx_t *ddr = &immap->ddr;
-
- printf("\nECC mode: %s\n\n",
- (ddr->sdram_cfg & SDRAM_CFG_ECC_EN) ? "ON" : "OFF");
-
- /* Interrupts */
- printf("Memory Error Interrupt Enable:\n");
- printf(" Multiple-Bit Error Interrupt Enable: %d\n",
- (ddr->err_int_en & ECC_ERR_INT_EN_MBEE) ? 1 : 0);
- printf(" Single-Bit Error Interrupt Enable: %d\n",
- (ddr->err_int_en & ECC_ERR_INT_EN_SBEE) ? 1 : 0);
- printf(" Memory Select Error Interrupt Enable: %d\n\n",
- (ddr->err_int_en & ECC_ERR_INT_EN_MSEE) ? 1 : 0);
-
- /* Error disable */
- printf("Memory Error Disable:\n");
- printf(" Multiple-Bit Error Disable: %d\n",
- (ddr->err_disable & ECC_ERROR_DISABLE_MBED) ? 1 : 0);
- printf(" Sinle-Bit Error Disable: %d\n",
- (ddr->err_disable & ECC_ERROR_DISABLE_SBED) ? 1 : 0);
- printf(" Memory Select Error Disable: %d\n\n",
- (ddr->err_disable & ECC_ERROR_DISABLE_MSED) ? 1 : 0);
-
- /* Error injection */
- printf("Memory Data Path Error Injection Mask High/Low: %08x %08x\n",
- ddr->data_err_inject_hi, ddr->data_err_inject_lo);
-
- printf("Memory Data Path Error Injection Mask ECC:\n");
- printf(" ECC Mirror Byte: %d\n",
- (ddr->ecc_err_inject & ECC_ERR_INJECT_EMB) ? 1 : 0);
- printf(" ECC Injection Enable: %d\n",
- (ddr->ecc_err_inject & ECC_ERR_INJECT_EIEN) ? 1 : 0);
- printf(" ECC Error Injection Mask: 0x%02x\n\n",
- ddr->ecc_err_inject & ECC_ERR_INJECT_EEIM);
-
- /* SBE counter/threshold */
- printf("Memory Single-Bit Error Management (0..255):\n");
- printf(" Single-Bit Error Threshold: %d\n",
- (ddr->err_sbe & ECC_ERROR_MAN_SBET) >> ECC_ERROR_MAN_SBET_SHIFT);
- printf(" Single-Bit Error Counter: %d\n\n",
- (ddr->err_sbe & ECC_ERROR_MAN_SBEC) >> ECC_ERROR_MAN_SBEC_SHIFT);
-
- /* Error detect */
- printf("Memory Error Detect:\n");
- printf(" Multiple Memory Errors: %d\n",
- (ddr->err_detect & ECC_ERROR_DETECT_MME) ? 1 : 0);
- printf(" Multiple-Bit Error: %d\n",
- (ddr->err_detect & ECC_ERROR_DETECT_MBE) ? 1 : 0);
- printf(" Single-Bit Error: %d\n",
- (ddr->err_detect & ECC_ERROR_DETECT_SBE) ? 1 : 0);
- printf(" Memory Select Error: %d\n\n",
- (ddr->err_detect & ECC_ERROR_DETECT_MSE) ? 1 : 0);
-
- /* Capture data */
- printf("Memory Error Address Capture: 0x%08x\n", ddr->capture_address);
- printf("Memory Data Path Read Capture High/Low: %08x %08x\n",
- ddr->capture_data_hi, ddr->capture_data_lo);
- printf("Memory Data Path Read Capture ECC: 0x%02x\n\n",
- ddr->capture_ecc & CAPTURE_ECC_ECE);
-
- printf("Memory Error Attributes Capture:\n");
- printf(" Data Beat Number: %d\n",
- (ddr->capture_attributes & ECC_CAPT_ATTR_BNUM) >>
- ECC_CAPT_ATTR_BNUM_SHIFT);
- printf(" Transaction Size: %d\n",
- (ddr->capture_attributes & ECC_CAPT_ATTR_TSIZ) >>
- ECC_CAPT_ATTR_TSIZ_SHIFT);
- printf(" Transaction Source: %d\n",
- (ddr->capture_attributes & ECC_CAPT_ATTR_TSRC) >>
- ECC_CAPT_ATTR_TSRC_SHIFT);
- printf(" Transaction Type: %d\n",
- (ddr->capture_attributes & ECC_CAPT_ATTR_TTYP) >>
- ECC_CAPT_ATTR_TTYP_SHIFT);
- printf(" Error Information Valid: %d\n\n",
- ddr->capture_attributes & ECC_CAPT_ATTR_VLD);
-}
-
-int do_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
-{
- volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
- volatile ddr83xx_t *ddr = &immap->ddr;
- volatile u32 val;
- u64 *addr;
- u32 count;
- register u64 *i;
- u32 ret[2];
- u32 pattern[2];
- u32 writeback[2];
-
- /* The pattern is written into memory to generate error */
- pattern[0] = 0xfedcba98UL;
- pattern[1] = 0x76543210UL;
-
- /* After injecting error, re-initialize the memory with the value */
- writeback[0] = 0x01234567UL;
- writeback[1] = 0x89abcdefUL;
-
- if (argc > 4) {
- cmd_usage(cmdtp);
- return 1;
- }
-
- if (argc == 2) {
- if (strcmp(argv[1], "status") == 0) {
- ecc_print_status();
- return 0;
- } else if (strcmp(argv[1], "captureclear") == 0) {
- ddr->capture_address = 0;
- ddr->capture_data_hi = 0;
- ddr->capture_data_lo = 0;
- ddr->capture_ecc = 0;
- ddr->capture_attributes = 0;
- return 0;
- }
- }
- if (argc == 3) {
- if (strcmp(argv[1], "sbecnt") == 0) {
- val = simple_strtoul(argv[2], NULL, 10);
- if (val > 255) {
- printf("Incorrect Counter value, "
- "should be 0..255\n");
- return 1;
- }
-
- val = (val << ECC_ERROR_MAN_SBEC_SHIFT);
- val |= (ddr->err_sbe & ECC_ERROR_MAN_SBET);
-
- ddr->err_sbe = val;
- return 0;
- } else if (strcmp(argv[1], "sbethr") == 0) {
- val = simple_strtoul(argv[2], NULL, 10);
- if (val > 255) {
- printf("Incorrect Counter value, "
- "should be 0..255\n");
- return 1;
- }
-
- val = (val << ECC_ERROR_MAN_SBET_SHIFT);
- val |= (ddr->err_sbe & ECC_ERROR_MAN_SBEC);
-
- ddr->err_sbe = val;
- return 0;
- } else if (strcmp(argv[1], "errdisable") == 0) {
- val = ddr->err_disable;
-
- if (strcmp(argv[2], "+sbe") == 0) {
- val |= ECC_ERROR_DISABLE_SBED;
- } else if (strcmp(argv[2], "+mbe") == 0) {
- val |= ECC_ERROR_DISABLE_MBED;
- } else if (strcmp(argv[2], "+mse") == 0) {
- val |= ECC_ERROR_DISABLE_MSED;
- } else if (strcmp(argv[2], "+all") == 0) {
- val |= (ECC_ERROR_DISABLE_SBED |
- ECC_ERROR_DISABLE_MBED |
- ECC_ERROR_DISABLE_MSED);
- } else if (strcmp(argv[2], "-sbe") == 0) {
- val &= ~ECC_ERROR_DISABLE_SBED;
- } else if (strcmp(argv[2], "-mbe") == 0) {
- val &= ~ECC_ERROR_DISABLE_MBED;
- } else if (strcmp(argv[2], "-mse") == 0) {
- val &= ~ECC_ERROR_DISABLE_MSED;
- } else if (strcmp(argv[2], "-all") == 0) {
- val &= ~(ECC_ERROR_DISABLE_SBED |
- ECC_ERROR_DISABLE_MBED |
- ECC_ERROR_DISABLE_MSED);
- } else {
- printf("Incorrect err_disable field\n");
- return 1;
- }
-
- ddr->err_disable = val;
- __asm__ __volatile__("sync");
- __asm__ __volatile__("isync");
- return 0;
- } else if (strcmp(argv[1], "errdetectclr") == 0) {
- val = ddr->err_detect;
-
- if (strcmp(argv[2], "mme") == 0) {
- val |= ECC_ERROR_DETECT_MME;
- } else if (strcmp(argv[2], "sbe") == 0) {
- val |= ECC_ERROR_DETECT_SBE;
- } else if (strcmp(argv[2], "mbe") == 0) {
- val |= ECC_ERROR_DETECT_MBE;
- } else if (strcmp(argv[2], "mse") == 0) {
- val |= ECC_ERROR_DETECT_MSE;
- } else if (strcmp(argv[2], "all") == 0) {
- val |= (ECC_ERROR_DETECT_MME |
- ECC_ERROR_DETECT_MBE |
- ECC_ERROR_DETECT_SBE |
- ECC_ERROR_DETECT_MSE);
- } else {
- printf("Incorrect err_detect field\n");
- return 1;
- }
-
- ddr->err_detect = val;
- return 0;
- } else if (strcmp(argv[1], "injectdatahi") == 0) {
- val = simple_strtoul(argv[2], NULL, 16);
-
- ddr->data_err_inject_hi = val;
- return 0;
- } else if (strcmp(argv[1], "injectdatalo") == 0) {
- val = simple_strtoul(argv[2], NULL, 16);
-
- ddr->data_err_inject_lo = val;
- return 0;
- } else if (strcmp(argv[1], "injectecc") == 0) {
- val = simple_strtoul(argv[2], NULL, 16);
- if (val > 0xff) {
- printf("Incorrect ECC inject mask, "
- "should be 0x00..0xff\n");
- return 1;
- }
- val |= (ddr->ecc_err_inject & ~ECC_ERR_INJECT_EEIM);
-
- ddr->ecc_err_inject = val;
- return 0;
- } else if (strcmp(argv[1], "inject") == 0) {
- val = ddr->ecc_err_inject;
-
- if (strcmp(argv[2], "en") == 0)
- val |= ECC_ERR_INJECT_EIEN;
- else if (strcmp(argv[2], "dis") == 0)
- val &= ~ECC_ERR_INJECT_EIEN;
- else
- printf("Incorrect command\n");
-
- ddr->ecc_err_inject = val;
- __asm__ __volatile__("sync");
- __asm__ __volatile__("isync");
- return 0;
- } else if (strcmp(argv[1], "mirror") == 0) {
- val = ddr->ecc_err_inject;
-
- if (strcmp(argv[2], "en") == 0)
- val |= ECC_ERR_INJECT_EMB;
- else if (strcmp(argv[2], "dis") == 0)
- val &= ~ECC_ERR_INJECT_EMB;
- else
- printf("Incorrect command\n");
-
- ddr->ecc_err_inject = val;
- return 0;
- }
- }
- if (argc == 4) {
- if (strcmp(argv[1], "testdw") == 0) {
- addr = (u64 *) simple_strtoul(argv[2], NULL, 16);
- count = simple_strtoul(argv[3], NULL, 16);
-
- if ((u32) addr % 8) {
- printf("Address not alligned on "
- "double word boundary\n");
- return 1;
- }
- disable_interrupts();
-
- for (i = addr; i < addr + count; i++) {
-
- /* enable injects */
- ddr->ecc_err_inject |= ECC_ERR_INJECT_EIEN;
- __asm__ __volatile__("sync");
- __asm__ __volatile__("isync");
-
- /* write memory location injecting errors */
- ppcDWstore((u32 *) i, pattern);
- __asm__ __volatile__("sync");
-
- /* disable injects */
- ddr->ecc_err_inject &= ~ECC_ERR_INJECT_EIEN;
- __asm__ __volatile__("sync");
- __asm__ __volatile__("isync");
-
- /* read data, this generates ECC error */
- ppcDWload((u32 *) i, ret);
- __asm__ __volatile__("sync");
-
- /* re-initialize memory, double word write the location again,
- * generates new ECC code this time */
- ppcDWstore((u32 *) i, writeback);
- __asm__ __volatile__("sync");
- }
- enable_interrupts();
- return 0;
- }
- if (strcmp(argv[1], "testword") == 0) {
- addr = (u64 *) simple_strtoul(argv[2], NULL, 16);
- count = simple_strtoul(argv[3], NULL, 16);
-
- if ((u32) addr % 8) {
- printf("Address not alligned on "
- "double word boundary\n");
- return 1;
- }
- disable_interrupts();
-
- for (i = addr; i < addr + count; i++) {
-
- /* enable injects */
- ddr->ecc_err_inject |= ECC_ERR_INJECT_EIEN;
- __asm__ __volatile__("sync");
- __asm__ __volatile__("isync");
-
- /* write memory location injecting errors */
- *(u32 *) i = 0xfedcba98UL;
- __asm__ __volatile__("sync");
-
- /* sub double word write,
- * bus will read-modify-write,
- * generates ECC error */
- *((u32 *) i + 1) = 0x76543210UL;
- __asm__ __volatile__("sync");
-
- /* disable injects */
- ddr->ecc_err_inject &= ~ECC_ERR_INJECT_EIEN;
- __asm__ __volatile__("sync");
- __asm__ __volatile__("isync");
-
- /* re-initialize memory,
- * double word write the location again,
- * generates new ECC code this time */
- ppcDWstore((u32 *) i, writeback);
- __asm__ __volatile__("sync");
- }
- enable_interrupts();
- return 0;
- }
- }
- cmd_usage(cmdtp);
- return 1;
-}
-
-U_BOOT_CMD(ecc, 4, 0, do_ecc,
- "support for DDR ECC features",
- "status - print out status info\n"
- "ecc captureclear - clear capture regs data\n"
- "ecc sbecnt <val> - set Single-Bit Error counter\n"
- "ecc sbethr <val> - set Single-Bit Threshold\n"
- "ecc errdisable <flag> - clear/set disable Memory Error Disable, flag:\n"
- " [-|+]sbe - Single-Bit Error\n"
- " [-|+]mbe - Multiple-Bit Error\n"
- " [-|+]mse - Memory Select Error\n"
- " [-|+]all - all errors\n"
- "ecc errdetectclr <flag> - clear Memory Error Detect, flag:\n"
- " mme - Multiple Memory Errors\n"
- " sbe - Single-Bit Error\n"
- " mbe - Multiple-Bit Error\n"
- " mse - Memory Select Error\n"
- " all - all errors\n"
- "ecc injectdatahi <hi> - set Memory Data Path Error Injection Mask High\n"
- "ecc injectdatalo <lo> - set Memory Data Path Error Injection Mask Low\n"
- "ecc injectecc <ecc> - set ECC Error Injection Mask\n"
- "ecc inject <en|dis> - enable/disable error injection\n"
- "ecc mirror <en|dis> - enable/disable mirror byte\n"
- "ecc testdw <addr> <cnt> - test mem region with double word access:\n"
- " - enables injects\n"
- " - writes pattern injecting errors with double word access\n"
- " - disables injects\n"
- " - reads pattern back with double word access, generates error\n"
- " - re-inits memory\n"
- "ecc testword <addr> <cnt> - test mem region with word access:\n"
- " - enables injects\n"
- " - writes pattern injecting errors with word access\n"
- " - writes pattern with word access, generates error\n"
- " - disables injects\n" " - re-inits memory");
-#endif
generated by cgit v1.1 at 2024-11-06 00:03:56 +0000