| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <stdint.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; |
| } |