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Diffstat (limited to 'cpu/mpc83xx/ecc.c')
-rw-r--r-- | cpu/mpc83xx/ecc.c | 390 |
1 files changed, 0 insertions, 390 deletions
diff --git a/cpu/mpc83xx/ecc.c b/cpu/mpc83xx/ecc.c deleted file mode 100644 index f3942b4..0000000 --- a/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 |