diff --git a/lib/nxp/mcux-sdk b/lib/nxp/mcux-sdk
index a242602a0..ae2ab01d9 160000
--- a/lib/nxp/mcux-sdk
+++ b/lib/nxp/mcux-sdk
@@ -1 +1 @@
-Subproject commit a242602a02fee2945287d446801217904a26fc7e
+Subproject commit ae2ab01d9d70ad00cd0e935c2552bd5f0e5c0294
diff --git a/ports/mimxrt10xx/boards.c b/ports/mimxrt10xx/boards.c
index 417c62f0c..350bd717f 100644
--- a/ports/mimxrt10xx/boards.c
+++ b/ports/mimxrt10xx/boards.c
@@ -46,6 +46,10 @@ const uint8_t dcd_data[] = { 0x00 };
 
 void board_init(void)
 {
+#if defined(__DCACHE_PRESENT) && __DCACHE_PRESENT
+  if (SCB_CCR_DC_Msk != (SCB_CCR_DC_Msk & SCB->CCR)) SCB_EnableDCache();
+#endif
+
   // Init clock
   BOARD_BootClockRUN();
 
diff --git a/ports/mimxrt10xx/boards/imxrt1010_evk/flash_config.c b/ports/mimxrt10xx/boards/imxrt1010_evk/flash_config.c
index a3e8039b4..867ad30c4 100644
--- a/ports/mimxrt10xx/boards/imxrt1010_evk/flash_config.c
+++ b/ports/mimxrt10xx/boards/imxrt1010_evk/flash_config.c
@@ -29,7 +29,7 @@ __attribute__((section(".boot_hdr.boot_data")))
 /*************************************
  *  Boot Data
  *************************************/
-const BOOT_DATA_T boot_data = {
+const BOOT_DATA_T g_boot_data = {
   BOARD_BOOT_START,           /* boot start location */
   BOARD_BOOT_LENGTH,          /* bootloader size 32K */
   PLUGIN_FLAG,                /* Plugin flag */
diff --git a/ports/mimxrt10xx/boards/imxrt1020_evk/flash_config.c b/ports/mimxrt10xx/boards/imxrt1020_evk/flash_config.c
index 90f3567c3..7aa83205c 100644
--- a/ports/mimxrt10xx/boards/imxrt1020_evk/flash_config.c
+++ b/ports/mimxrt10xx/boards/imxrt1020_evk/flash_config.c
@@ -29,7 +29,7 @@ __attribute__((section(".boot_hdr.boot_data")))
 /*************************************
  *  Boot Data
  *************************************/
-const BOOT_DATA_T boot_data = {
+const BOOT_DATA_T g_boot_data = {
   BOARD_BOOT_START,           /* boot start location */
   BOARD_BOOT_LENGTH,          /* bootloader size 48K */
   PLUGIN_FLAG,                /* Plugin flag*/
diff --git a/ports/mimxrt10xx/boards/imxrt1024_evk/flash_config.c b/ports/mimxrt10xx/boards/imxrt1024_evk/flash_config.c
index cf203851c..bc5ac51d2 100644
--- a/ports/mimxrt10xx/boards/imxrt1024_evk/flash_config.c
+++ b/ports/mimxrt10xx/boards/imxrt1024_evk/flash_config.c
@@ -29,7 +29,7 @@ __attribute__((section(".boot_hdr.boot_data")))
 /*************************************
  *  Boot Data
  *************************************/
-const BOOT_DATA_T boot_data = {
+const BOOT_DATA_T g_boot_data = {
   BOARD_BOOT_START,           /* boot start location */
   BOARD_BOOT_LENGTH,          /* bootloader size 48K */
   PLUGIN_FLAG,                /* Plugin flag */
diff --git a/ports/mimxrt10xx/boards/imxrt1060_evk/flash_config.c b/ports/mimxrt10xx/boards/imxrt1060_evk/flash_config.c
index b88dcca49..5b959963b 100644
--- a/ports/mimxrt10xx/boards/imxrt1060_evk/flash_config.c
+++ b/ports/mimxrt10xx/boards/imxrt1060_evk/flash_config.c
@@ -29,7 +29,7 @@ __attribute__((section(".boot_hdr.boot_data")))
 /*************************************
  *  Boot Data
  *************************************/
-const BOOT_DATA_T boot_data = {
+const BOOT_DATA_T g_boot_data = {
   BOARD_BOOT_START,           /* boot start location */
   BOARD_BOOT_LENGTH,          /* bootloader size 48K */
   PLUGIN_FLAG,                /* Plugin flag */
diff --git a/ports/mimxrt10xx/boards/imxrt1064_evk/flash_config.c b/ports/mimxrt10xx/boards/imxrt1064_evk/flash_config.c
index cf203851c..bc5ac51d2 100644
--- a/ports/mimxrt10xx/boards/imxrt1064_evk/flash_config.c
+++ b/ports/mimxrt10xx/boards/imxrt1064_evk/flash_config.c
@@ -29,7 +29,7 @@ __attribute__((section(".boot_hdr.boot_data")))
 /*************************************
  *  Boot Data
  *************************************/
-const BOOT_DATA_T boot_data = {
+const BOOT_DATA_T g_boot_data = {
   BOARD_BOOT_START,           /* boot start location */
   BOARD_BOOT_LENGTH,          /* bootloader size 48K */
   PLUGIN_FLAG,                /* Plugin flag */
diff --git a/ports/mimxrt10xx/boards/metro_m7_1011/flash_config.c b/ports/mimxrt10xx/boards/metro_m7_1011/flash_config.c
index fd1c0fb7a..0136c0052 100644
--- a/ports/mimxrt10xx/boards/metro_m7_1011/flash_config.c
+++ b/ports/mimxrt10xx/boards/metro_m7_1011/flash_config.c
@@ -29,7 +29,7 @@ __attribute__((section(".boot_hdr.boot_data")))
 /*************************************
  *  Boot Data
  *************************************/
-const BOOT_DATA_T boot_data = {
+const BOOT_DATA_T g_boot_data = {
   BOARD_BOOT_START,           /* boot start location */
   BOARD_BOOT_LENGTH,          /* bootloader size 32K */
   PLUGIN_FLAG,                /* Plugin flag */