+/* test with a given static 32 bit pattern in a given memory addressrange */
+static int gdc_post_test1(ulong *start, ulong size, ulong val)
+{
+ int ret = 0;
+ ulong i = 0;
+ ulong *mem = start;
+ ulong readback;
+
+ for (i = 0; i < size / sizeof(ulong); i++) {
+ mem[i] = val;
+ if (i % 1024 == 0)
+ WATCHDOG_RESET();
+ }
+
+ for (i = 0; i < size / sizeof(ulong); i++) {
+ readback = mem[i];
+ if (readback != val) {
+ post_log("GDC Memory error at %08x, "
+ "wrote %08x, read %08x !\n",
+ mem + i, val, readback);
+ ret = -1;
+ break;
+ }
+ if (i % 1024 == 0)
+ WATCHDOG_RESET();
+ }
+
+ return ret;
+}
+
+/* test with dynamic 32 bit pattern in a given memory addressrange */
+static int gdc_post_test2(ulong *start, ulong size)
+{
+ int ret = 0;
+ ulong i = 0;
+ ulong *mem = start;
+ ulong readback;
+
+ for (i = 0; i < size / sizeof(ulong); i++) {
+ mem[i] = 1 << (i % 32);
+ if (i % 1024 == 0)
+ WATCHDOG_RESET();
+ }
+
+ for (i = 0; i < size / sizeof(ulong); i++) {
+ readback = mem[i];
+ if (readback != 1 << (i % 32)) {
+ post_log("GDC Memory error at %08x, "
+ "wrote %08x, read %08x !\n",
+ mem + i, 1 << (i % 32), readback);
+ ret = -1;
+ break;
+ }
+ if (i % 1024 == 0)
+ WATCHDOG_RESET();
+ }
+
+ return ret;
+}
+
+/* test with dynamic 32 bit pattern in a given memory addressrange */
+static int gdc_post_test3(ulong *start, ulong size)
+{
+ int ret = 0;
+ ulong i = 0;
+ ulong *mem = start;
+ ulong readback;
+
+ for (i = 0; i < size / sizeof(ulong); i++) {
+ mem[i] = i;
+ if (i % 1024 == 0)
+ WATCHDOG_RESET();
+ }
+
+ for (i = 0; i < size / sizeof(ulong); i++) {
+ readback = mem[i];
+ if (readback != i) {
+ post_log("GDC Memory error at %08x, "
+ "wrote %08x, read %08x !\n",
+ mem + i, i, readback);
+ ret = -1;
+ break;
+ }
+ if (i % 1024 == 0)
+ WATCHDOG_RESET();
+ }
+
+ return ret;
+}
+
+/* test with dynamic 32 bit pattern in a given memory addressrange */
+static int gdc_post_test4(ulong *start, ulong size)
+{
+ int ret = 0;
+ ulong i = 0;
+ ulong *mem = start;
+ ulong readback;
+
+ for (i = 0; i < size / sizeof(ulong); i++) {
+ mem[i] = ~i;
+ if (i % 1024 == 0)
+ WATCHDOG_RESET();
+ }
+
+ for (i = 0; i < size / sizeof(ulong); i++) {
+ readback = mem[i];
+ if (readback != ~i) {
+ post_log("GDC Memory error at %08x, "
+ "wrote %08x, read %08x !\n",
+ mem + i, ~i, readback);
+ ret = -1;
+ break;
+ }
+ if (i % 1024 == 0)
+ WATCHDOG_RESET();
+ }
+
+ return ret;
+}
+
+/* do some patterntests in a given addressrange */
+int gdc_mem_test(ulong *start, ulong size)
+{
+ int ret = 0;
+
+ /*
+ * check addressrange and do different static and dynamic
+ * pattern tests with it.
+ */
+ if (((void *)start) + size <= (void *)GDC_RAM_END) {
+ if (ret == 0)
+ ret = gdc_post_test1(start, size, 0x00000000);
+
+ if (ret == 0)
+ ret = gdc_post_test1(start, size, 0xffffffff);
+
+ if (ret == 0)
+ ret = gdc_post_test1(start, size, 0x55555555);
+
+ if (ret == 0)
+ ret = gdc_post_test1(start, size, 0xaaaaaaaa);
+
+ if (ret == 0)
+ ret = gdc_post_test2(start, size);
+
+ if (ret == 0)
+ ret = gdc_post_test3(start, size);
+
+ if (ret == 0)
+ ret = gdc_post_test4(start, size);
+ }
+
+ return ret;
+}
+
+/* test function of gdc memory addresslines*/
+static int gdc_post_addrline(ulong *address, ulong *base, ulong size)
+{
+ ulong *target;
+ ulong *end;
+ ulong readback = 0;
+ ulong xor = 0;
+ int ret = 0;
+
+ end = (ulong *)((ulong)base + size);
+
+ for (xor = sizeof(long); xor > 0; xor <<= 1) {
+ target = (ulong *)((ulong)address ^ xor);
+ if ((target >= base) && (target < end)) {
+ *address = ~*target;
+ readback = *target;
+ }
+
+ if (readback == *address) {
+ post_log("GDC Memory (address line) error at %08x"
+ "XOR value %08x !\n",
+ address, target , xor);
+ ret = -1;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+static int gdc_post_dataline(ulong *address)
+{
+ unsigned long temp32 = 0;
+ int i = 0;
+ int ret = 0;
+
+ for (i = 0; i < ARRAY_SIZE(pattern); i++) {
+ *address = pattern[i];
+ /*
+ * Put a different pattern on the data lines: otherwise they
+ * may float long enough to read back what we wrote.
+ */
+ *(address + 1) = otherpattern;
+ temp32 = *address;
+
+ if (temp32 != pattern[i]){
+ post_log("GDC Memory (date line) error at %08x, "
+ "wrote %08x, read %08x !\n",
+ address, pattern[i], temp32);
+ ret = 1;
+ }
+ }
+
+ return ret;
+}
+
+/* Verify GDC, get memory size, verify GDC memory */