diff options
| -rw-r--r-- | src/include/lib.h | 3 | ||||
| -rw-r--r-- | src/lib/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/lib/primitive_memtest.c | 65 |
3 files changed, 70 insertions, 0 deletions
diff --git a/src/include/lib.h b/src/include/lib.h index 772a66f317..0cb2c0c8d2 100644 --- a/src/include/lib.h +++ b/src/include/lib.h @@ -39,6 +39,9 @@ int ram_check_nodie(unsigned long start, unsigned long stop); int ram_check_noprint_nodie(unsigned long start, unsigned long stop); void quick_ram_check(void); +/* Defined in primitive_memtest.c */ +int primitive_memtest(uintptr_t base, uintptr_t size); + /* Defined in src/lib/stack.c */ int checkstack(void *top_of_stack, int core); diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc index ec3c2f4cc4..9b5f56bb74 100644 --- a/src/lib/Makefile.inc +++ b/src/lib/Makefile.inc @@ -33,6 +33,8 @@ romstage-$(CONFIG_I2C_TPM) += delay.c romstage-y += cbfs.c cbfs_core.c romstage-$(CONFIG_COMMON_CBFS_SPI_WRAPPER) += cbfs_spi.c romstage-$(CONFIG_COMPRESS_RAMSTAGE) += lzma.c lzmadecode.c +romstage-$(CONFIG_PRIMITIVE_MEMTEST) += primitive_memtest.c +ramstage-$(CONFIG_PRIMITIVE_MEMTEST) += primitive_memtest.c romstage-$(CONFIG_CACHE_AS_RAM) += ramtest.c ifeq ($(CONFIG_EARLY_CBMEM_INIT),y) diff --git a/src/lib/primitive_memtest.c b/src/lib/primitive_memtest.c new file mode 100644 index 0000000000..d59d25fd92 --- /dev/null +++ b/src/lib/primitive_memtest.c @@ -0,0 +1,65 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Google Inc. + * + * 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; version 2 of the License. + * + * This program is distributed in the hope that 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, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <inttypes.h> +#include <lib.h> +#include <console/console.h> + +int primitive_memtest(uintptr_t base, uintptr_t size) +{ + uintptr_t *p; + uintptr_t i; + int bad = 0; + + printk(BIOS_SPEW, "Performing primitive memory test.\n"); + printk(BIOS_SPEW, "DRAM start: 0x%08x, DRAM size: 0x%08x", base, size); + for(i = base; i < base + (size - 1) - sizeof(p); i += sizeof(p)) { + if (i % 0x100000 == 0) { + if ((i % 0x800000) == 0) + printk(BIOS_SPEW, "\n"); + else if (i != 0) + printk(BIOS_SPEW, " "); + printk(BIOS_SPEW, "0x%08x", i); + } + p = (uintptr_t *)i; + *p = i; + } + + printk(BIOS_SPEW, "\n\nReading back DRAM content"); + for(i = base; i < base + (size - 1) - sizeof(p); i += sizeof(p)) { + if (i % 0x100000 == 0) { + if ((i % 0x800000) == 0) + printk(BIOS_SPEW, "\n"); + else if (i != 0) + printk(BIOS_SPEW, " "); + printk(BIOS_SPEW, "0x%08x", i); + } + + p = (uintptr_t *)i; + if (*p != i) { + printk(BIOS_SPEW, "\n0x%08zx: got 0x%zx\n", i, *p); + bad++; + } + } + + printk(BIOS_SPEW, "\n"); + printk(BIOS_SPEW, "%d errors\n", bad); + + return bad; +} |