Merge pull request hathach#1898 from ccrome/fix-imx1011

Turn data cache on

Author: hathach

hw/bsp/imxrt/family.c

@@ -55,6 +55,12 @@ const uint8_t dcd_data[] = { 0x00 };
 
 void board_init(void)
 {
+  // make sure the dcache is on.
+#if defined(__DCACHE_PRESENT) && __DCACHE_PRESENT
+    if (SCB_CCR_DC_Msk != (SCB_CCR_DC_Msk & SCB->CCR))
+        SCB_EnableDCache();
+#endif
+
   // Init clock
   BOARD_BootClockRUN();
   SystemCoreClockUpdate();