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authorTristan Shieh <tristan.shieh@mediatek.com>2018-08-10 14:46:31 +0800
committerPatrick Georgi <pgeorgi@google.com>2018-09-06 10:29:39 +0000
commit79b990d96535f394fc97c796230f1d572e5a2732 (patch)
treed37eb30f01913097e11c183062eb74afa09e9feb /src/soc/mediatek/common
parent6f70d51facd3332f2fcc057fe0eed818d4d347c3 (diff)
downloadcoreboot-79b990d96535f394fc97c796230f1d572e5a2732.tar.xz
mediatek: Refactor memory test code among similar SoCs
Refactor memory test code which will be reused among similar SoCs. BUG=b:80501386 BRANCH=none TEST=Boots correctly on Elm Change-Id: I800aa9a73f0b4588f46a98c964e2794bdf04f09d Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com> Reviewed-on: https://review.coreboot.org/28436 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Joel Kitching <kitching@google.com> Reviewed-by: Julius Werner <jwerner@google.com>
Diffstat (limited to 'src/soc/mediatek/common')
-rw-r--r--src/soc/mediatek/common/memory_test.c310
1 files changed, 310 insertions, 0 deletions
diff --git a/src/soc/mediatek/common/memory_test.c b/src/soc/mediatek/common/memory_test.c
new file mode 100644
index 0000000000..7e2260182b
--- /dev/null
+++ b/src/soc/mediatek/common/memory_test.c
@@ -0,0 +1,310 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2018 MediaTek 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.
+ */
+
+#include <soc/emi.h>
+
+enum {
+ /* test patterns */
+ PATTERN0 = 0x00000000,
+ PATTERN1 = 0x5A5A5A5A,
+ PATTERN2 = 0xA5A5A5A5,
+ PATTERN3 = 0xA5A5A500,
+ PATTERN4 = 0xA500A500,
+ PATTERN5 = 0xA5000000,
+ PATTERN6 = 0xFFFF0000,
+ PATTERN7 = 0x0000FFFF,
+ PATTERN8 = 0x00000012,
+ PATTERN9 = 0x00000034,
+ PATTERNA = 0x00000056,
+ PATTERNB = 0x00000078,
+ PATTERNC = 0x00001234,
+ PATTERND = 0x00005678,
+ PATTERNE = 0x12345678,
+ PATTERNF = 0xFFFFFFFF
+};
+
+int complex_mem_test(u8 *start, unsigned int len)
+{
+ unsigned char *mem8_base = (unsigned char *)start;
+ unsigned short *mem16_base = (unsigned short *)start;
+ unsigned int *mem32_base = (unsigned int *)start;
+ unsigned int *mem_base = (unsigned int *)start;
+ unsigned char pattern8;
+ unsigned short pattern16;
+ unsigned int i, j, size, pattern32;
+ unsigned int value;
+ uintptr_t p;
+
+ size = len >> 2;
+
+ /* verify the tied bits (tied high) */
+ for (i = 0; i < size; i++)
+ mem32_base[i] = PATTERN0;
+
+ for (i = 0; i < size; i++) {
+ if (mem32_base[i] != PATTERN0)
+ return -1;
+
+ mem32_base[i] = PATTERNF;
+ }
+
+ /* verify the tied bits (tied low) */
+ for (i = 0; i < size; i++) {
+ if (mem32_base[i] != PATTERNF)
+ return -2;
+ mem32_base[i] = PATTERN0;
+ }
+
+ /* verify pattern 1 (0x00~0xff) */
+ pattern8 = PATTERN0;
+ for (i = 0; i < len; i++)
+ mem8_base[i] = pattern8++;
+ pattern8 = PATTERN0;
+ for (i = 0; i < len; i++) {
+ if (mem8_base[i] != pattern8++)
+ return -3;
+ }
+
+ /* verify pattern 2 (0x00~0xff) */
+ pattern8 = PATTERN0;
+ for (i = j = 0; i < len; i += 2, j++) {
+ if (mem8_base[i] == pattern8)
+ mem16_base[j] = pattern8;
+ if (mem16_base[j] != pattern8)
+ return -4;
+
+ pattern8 += 2;
+ }
+
+ /* verify pattern 3 (0x00~0xffff) */
+ pattern16 = PATTERN0;
+ for (i = 0; i < (len >> 1); i++)
+ mem16_base[i] = pattern16++;
+ pattern16 = PATTERN0;
+ for (i = 0; i < (len >> 1); i++) {
+ if (mem16_base[i] != pattern16++)
+ return -5;
+ }
+
+ /* verify pattern 4 (0x00~0xffffffff) */
+ pattern32 = PATTERN0;
+ for (i = 0; i < (len >> 2); i++)
+ mem32_base[i] = pattern32++;
+ pattern32 = PATTERN0;
+ for (i = 0; i < (len >> 2); i++) {
+ if (mem32_base[i] != pattern32++)
+ return -6;
+ }
+
+ /* pattern 5: filling memory range with 0x12345678 */
+ for (i = 0; i < size; i++)
+ mem32_base[i] = PATTERNE;
+
+ /* read check then fill memory with a5a5a5a5 pattern */
+ for (i = 0; i < size; i++) {
+ if (mem32_base[i] != PATTERNE)
+ return -7;
+
+ mem32_base[i] = PATTERN2;
+ }
+
+ /* read check then fill memory with 00 byte pattern at offset 0h */
+ for (i = 0; i < size; i++) {
+ if (mem32_base[i] != PATTERN2)
+ return -8;
+
+ mem8_base[i * 4] = PATTERN0;
+ }
+
+ /* read check then fill memory with 00 byte pattern at offset 2h */
+ for (i = 0; i < size; i++) {
+ if (mem32_base[i] != PATTERN3)
+ return -9;
+
+ mem8_base[i * 4 + 2] = PATTERN0;
+ }
+
+ /* read check then fill memory with 00 byte pattern at offset 1h */
+ for (i = 0; i < size; i++) {
+ if (mem32_base[i] != PATTERN4)
+ return -10;
+
+ mem8_base[i * 4 + 1] = PATTERN0;
+ }
+
+ /* read check then fill memory with 00 byte pattern at offset 3h */
+ for (i = 0; i < size; i++) {
+ if (mem32_base[i] != PATTERN5)
+ return -11;
+
+ mem8_base[i * 4 + 3] = PATTERN0;
+ }
+
+ /* read check then fill memory with ffff word pattern at offset 1h */
+ for (i = 0; i < size; i++) {
+ if (mem32_base[i] != PATTERN0)
+ return -12;
+
+ mem16_base[i * 2 + 1] = PATTERN7;
+ }
+
+ /* read check then fill memory with ffff word pattern at offset 0h */
+ for (i = 0; i < size; i++) {
+ if (mem32_base[i] != PATTERN6)
+ return -13;
+
+ mem16_base[i * 2] = PATTERN7;
+ }
+
+ /* read check */
+ for (i = 0; i < size; i++) {
+ if (mem32_base[i] != PATTERNF)
+ return -14;
+ }
+
+ /* stage 1 => write 0 */
+ for (i = 0; i < size; i++)
+ mem_base[i] = PATTERN1;
+
+ /* stage 2 => read 0, write 0xf */
+ for (i = 0; i < size; i++) {
+ value = mem_base[i];
+
+ if (value != PATTERN1)
+ return -15;
+
+ mem_base[i] = PATTERN2;
+ }
+
+ /* stage 3 => read 0xf, write 0 */
+ for (i = 0; i < size; i++) {
+ value = mem_base[i];
+ if (value != PATTERN2)
+ return -16;
+
+ mem_base[i] = PATTERN1;
+ }
+
+ /* stage 4 => read 0, write 0xf */
+ for (i = 0; i < size; i++) {
+ value = mem_base[i];
+ if (value != PATTERN1)
+ return -17;
+
+ mem_base[i] = PATTERN2;
+ }
+
+ /* stage 5 => read 0xf, write 0 */
+ for (i = 0; i < size; i++) {
+ value = mem_base[i];
+ if (value != PATTERN2)
+ return -18;
+
+ mem_base[i] = PATTERN1;
+ }
+
+ /* stage 6 => read 0 */
+ for (i = 0; i < size; i++) {
+ value = mem_base[i];
+ if (value != PATTERN1)
+ return -19;
+ }
+
+ /* 1/2/4-byte combination test */
+ p = (uintptr_t)mem_base;
+
+ while (p < (uintptr_t)mem_base + (size << 2)) {
+ *((unsigned char *)p) = PATTERNB;
+ p += 1;
+ *((unsigned char *)p) = PATTERNA;
+ p += 1;
+ *((unsigned short *)p) = PATTERNC;
+ p += 2;
+ *((unsigned int *)p) = PATTERNE;
+ p += 4;
+ *((unsigned short *)p) = PATTERND;
+ p += 2;
+ *((unsigned char *)p) = PATTERN9;
+ p += 1;
+ *((unsigned char *)p) = PATTERN8;
+ p += 1;
+ *((unsigned int *)p) = PATTERNE;
+ p += 4;
+ *((unsigned char *)p) = PATTERNB;
+ p += 1;
+ *((unsigned char *)p) = PATTERNA;
+ p += 1;
+ *((unsigned short *)p) = PATTERNC;
+ p += 2;
+ *((unsigned int *)p) = PATTERNE;
+ p += 4;
+ *((unsigned short *)p) = PATTERND;
+ p += 2;
+ *((unsigned char *)p) = PATTERN9;
+ p += 1;
+ *((unsigned char *)p) = PATTERN8;
+ p += 1;
+ *((unsigned int *)p) = PATTERNE;
+ p += 4;
+ }
+
+ for (i = 0; i < size; i++) {
+ value = mem_base[i];
+ if (value != PATTERNE)
+ return -20;
+ }
+
+ /* verify pattern 1 (0x00~0xff) */
+ pattern8 = PATTERN0;
+ mem8_base[0] = pattern8;
+ for (i = 0; i < size * 4; i++) {
+ unsigned char waddr8, raddr8;
+
+ waddr8 = i + 1;
+ raddr8 = i;
+ if (i < size * 4 - 1)
+ mem8_base[waddr8] = pattern8 + 1;
+ if (mem8_base[raddr8] != pattern8)
+ return -21;
+
+ pattern8++;
+ }
+
+ /* verify pattern 2 (0x00~0xffff) */
+ pattern16 = PATTERN0;
+ mem16_base[0] = pattern16;
+ for (i = 0; i < size * 2; i++) {
+ if (i < size * 2 - 1)
+ mem16_base[i + 1] = pattern16 + 1;
+ if (mem16_base[i] != pattern16)
+ return -22;
+
+ pattern16++;
+ }
+
+ /* verify pattern 3 (0x00~0xffffffff) */
+ pattern32 = PATTERN0;
+ mem32_base[0] = pattern32;
+ for (i = 0; i < size; i++) {
+ if (i < size - 1)
+ mem32_base[i + 1] = pattern32 + 1;
+ if (mem32_base[i] != pattern32)
+ return -23;
+
+ pattern32++;
+ }
+
+ return 0;
+}