diff --git a/ports/mimxrt10xx/boards/arch_mix_1052/flash_config.c b/ports/mimxrt10xx/boards/arch_mix_1052/flash_config.c
index 6813a5d1c..d96d588e7 100644
--- a/ports/mimxrt10xx/boards/arch_mix_1052/flash_config.c
+++ b/ports/mimxrt10xx/boards/arch_mix_1052/flash_config.c
@@ -65,7 +65,7 @@ const flexspi_nor_config_t qspiflash_config = {
         .deviceModeArg = 0x40,
         .deviceType    = kFlexSpiDeviceType_SerialNOR,
         .sflashPadType = kSerialFlash_4Pads,
-        .serialClkFreq = kFlexSpiSerialClk_60MHz,
+        .serialClkFreq = kFlexSpiSerialClk_133MHz,
         .sflashA1Size  = FLASH_SIZE,
         .lookupTable =
         {
diff --git a/ports/mimxrt10xx/boards/imxrt1010_evk/flash_config.c b/ports/mimxrt10xx/boards/imxrt1010_evk/flash_config.c
index 3c40dae9b..369760bbf 100644
--- a/ports/mimxrt10xx/boards/imxrt1010_evk/flash_config.c
+++ b/ports/mimxrt10xx/boards/imxrt1010_evk/flash_config.c
@@ -64,7 +64,7 @@ const flexspi_nor_config_t qspiflash_config = {
         .deviceModeArg = 0x02,
         .deviceType    = kFlexSpiDeviceType_SerialNOR,
         .sflashPadType = kSerialFlash_4Pads,
-        .serialClkFreq = kFlexSpiSerialClk_60MHz,
+        .serialClkFreq = kFlexSpiSerialClk_100MHz,
         .sflashA1Size  = FLASH_SIZE,
         .lookupTable =
         {
diff --git a/ports/mimxrt10xx/boards/imxrt1015_evk/flash_config.c b/ports/mimxrt10xx/boards/imxrt1015_evk/flash_config.c
index 3c40dae9b..369760bbf 100644
--- a/ports/mimxrt10xx/boards/imxrt1015_evk/flash_config.c
+++ b/ports/mimxrt10xx/boards/imxrt1015_evk/flash_config.c
@@ -64,7 +64,7 @@ const flexspi_nor_config_t qspiflash_config = {
         .deviceModeArg = 0x02,
         .deviceType    = kFlexSpiDeviceType_SerialNOR,
         .sflashPadType = kSerialFlash_4Pads,
-        .serialClkFreq = kFlexSpiSerialClk_60MHz,
+        .serialClkFreq = kFlexSpiSerialClk_100MHz,
         .sflashA1Size  = FLASH_SIZE,
         .lookupTable =
         {
diff --git a/ports/mimxrt10xx/boards/imxrt1020_evk/flash_config.c b/ports/mimxrt10xx/boards/imxrt1020_evk/flash_config.c
index 8404dbf51..8083a6979 100644
--- a/ports/mimxrt10xx/boards/imxrt1020_evk/flash_config.c
+++ b/ports/mimxrt10xx/boards/imxrt1020_evk/flash_config.c
@@ -64,7 +64,7 @@ const flexspi_nor_config_t qspiflash_config = {
         .deviceModeArg = 0x40,
         .deviceType    = kFlexSpiDeviceType_SerialNOR,
         .sflashPadType = kSerialFlash_4Pads,
-        .serialClkFreq = kFlexSpiSerialClk_30MHz,
+        .serialClkFreq = kFlexSpiSerialClk_133MHz,
         .sflashA1Size  = FLASH_SIZE,
         .lookupTable =
         {
diff --git a/ports/mimxrt10xx/boards/imxrt1040_evk/flash_config.c b/ports/mimxrt10xx/boards/imxrt1040_evk/flash_config.c
index 61217892b..55175051d 100644
--- a/ports/mimxrt10xx/boards/imxrt1040_evk/flash_config.c
+++ b/ports/mimxrt10xx/boards/imxrt1040_evk/flash_config.c
@@ -64,7 +64,7 @@ const flexspi_nor_config_t qspiflash_config = {
         .deviceModeArg = 0x40,
         .deviceType    = kFlexSpiDeviceType_SerialNOR,
         .sflashPadType = kSerialFlash_4Pads,
-        .serialClkFreq = kFlexSpiSerialClk_60MHz,
+        .serialClkFreq = kFlexSpiSerialClk_100MHz,
         .sflashA1Size  = FLASH_SIZE,
         .lookupTable =
         {
diff --git a/ports/mimxrt10xx/boards/imxrt1050_evkb/flash_config.c b/ports/mimxrt10xx/boards/imxrt1050_evkb/flash_config.c
index 6813a5d1c..d96d588e7 100644
--- a/ports/mimxrt10xx/boards/imxrt1050_evkb/flash_config.c
+++ b/ports/mimxrt10xx/boards/imxrt1050_evkb/flash_config.c
@@ -65,7 +65,7 @@ const flexspi_nor_config_t qspiflash_config = {
         .deviceModeArg = 0x40,
         .deviceType    = kFlexSpiDeviceType_SerialNOR,
         .sflashPadType = kSerialFlash_4Pads,
-        .serialClkFreq = kFlexSpiSerialClk_60MHz,
+        .serialClkFreq = kFlexSpiSerialClk_133MHz,
         .sflashA1Size  = FLASH_SIZE,
         .lookupTable =
         {
diff --git a/ports/mimxrt10xx/boards/imxrt1060_evk/flash_config.c b/ports/mimxrt10xx/boards/imxrt1060_evk/flash_config.c
index 61217892b..aa7b2fdd6 100644
--- a/ports/mimxrt10xx/boards/imxrt1060_evk/flash_config.c
+++ b/ports/mimxrt10xx/boards/imxrt1060_evk/flash_config.c
@@ -64,7 +64,7 @@ const flexspi_nor_config_t qspiflash_config = {
         .deviceModeArg = 0x40,
         .deviceType    = kFlexSpiDeviceType_SerialNOR,
         .sflashPadType = kSerialFlash_4Pads,
-        .serialClkFreq = kFlexSpiSerialClk_60MHz,
+        .serialClkFreq = kFlexSpiSerialClk_133MHz,
         .sflashA1Size  = FLASH_SIZE,
         .lookupTable =
         {
diff --git a/ports/mimxrt10xx/boards/imxrt1064_evk/flash_config.c b/ports/mimxrt10xx/boards/imxrt1064_evk/flash_config.c
index 09f2aaf8d..bc7175887 100644
--- a/ports/mimxrt10xx/boards/imxrt1064_evk/flash_config.c
+++ b/ports/mimxrt10xx/boards/imxrt1064_evk/flash_config.c
@@ -70,7 +70,7 @@ const flexspi_nor_config_t qspiflash_config = {
         },
         .deviceType = kFlexSpiDeviceType_SerialNOR,
         .sflashPadType = kSerialFlash_4Pads,
-        .serialClkFreq = kFlexSpiSerialClk_60MHz,
+        .serialClkFreq = kFlexSpiSerialClk_100MHz,
         .sflashA1Size  = BOARD_FLASH_SIZE,
         .lookupTable =
         {
diff --git a/ports/mimxrt10xx/boards/makerdiary_rt1011/flash_config.c b/ports/mimxrt10xx/boards/makerdiary_rt1011/flash_config.c
index d8fb13102..2a5ace6c5 100644
--- a/ports/mimxrt10xx/boards/makerdiary_rt1011/flash_config.c
+++ b/ports/mimxrt10xx/boards/makerdiary_rt1011/flash_config.c
@@ -36,7 +36,7 @@ const BOOT_DATA_T g_boot_data = {
   0xFFFFFFFF                  /* empty - extra data word */
 };
 
-// Config for AT25SF128A with QSPI routed.
+// Config for W25Q128VPQ with QSPI routed.
 __attribute__((section(".boot_hdr.conf")))
 const flexspi_nor_config_t qspiflash_config = {
     .pageSize           = 256u,
@@ -64,7 +64,7 @@ const flexspi_nor_config_t qspiflash_config = {
         .deviceModeArg = 0x200,
         .deviceType    = kFlexSpiDeviceType_SerialNOR,
         .sflashPadType = kSerialFlash_4Pads,
-        .serialClkFreq = kFlexSpiSerialClk_60MHz,
+        .serialClkFreq = kFlexSpiSerialClk_100MHz,
         .sflashA1Size  = FLASH_SIZE,
         .lookupTable =
         {
diff --git a/ports/mimxrt10xx/boards/metro_m7_1011/flash_config.c b/ports/mimxrt10xx/boards/metro_m7_1011/flash_config.c
index 127fb6178..5807090d8 100644
--- a/ports/mimxrt10xx/boards/metro_m7_1011/flash_config.c
+++ b/ports/mimxrt10xx/boards/metro_m7_1011/flash_config.c
@@ -70,7 +70,7 @@ const flexspi_nor_config_t qspiflash_config = {
         },
         .deviceType    = kFlexSpiDeviceType_SerialNOR,
         .sflashPadType = kSerialFlash_4Pads,
-        .serialClkFreq = kFlexSpiSerialClk_60MHz,
+        .serialClkFreq = kFlexSpiSerialClk_100MHz,
         .sflashA1Size  = FLASH_SIZE,
         .lookupTable =
         {
diff --git a/ports/mimxrt10xx/boards/metro_m7_1011_sd/flash_config.c b/ports/mimxrt10xx/boards/metro_m7_1011_sd/flash_config.c
index 127fb6178..5807090d8 100644
--- a/ports/mimxrt10xx/boards/metro_m7_1011_sd/flash_config.c
+++ b/ports/mimxrt10xx/boards/metro_m7_1011_sd/flash_config.c
@@ -70,7 +70,7 @@ const flexspi_nor_config_t qspiflash_config = {
         },
         .deviceType    = kFlexSpiDeviceType_SerialNOR,
         .sflashPadType = kSerialFlash_4Pads,
-        .serialClkFreq = kFlexSpiSerialClk_60MHz,
+        .serialClkFreq = kFlexSpiSerialClk_100MHz,
         .sflashA1Size  = FLASH_SIZE,
         .lookupTable =
         {
diff --git a/ports/mimxrt10xx/boards/olimex_rt1010/flash_config.c b/ports/mimxrt10xx/boards/olimex_rt1010/flash_config.c
index d8fb13102..aebd36bae 100644
--- a/ports/mimxrt10xx/boards/olimex_rt1010/flash_config.c
+++ b/ports/mimxrt10xx/boards/olimex_rt1010/flash_config.c
@@ -36,7 +36,7 @@ const BOOT_DATA_T g_boot_data = {
   0xFFFFFFFF                  /* empty - extra data word */
 };
 
-// Config for AT25SF128A with QSPI routed.
+// Config for W25Q16DVSSIG with QSPI routed.
 __attribute__((section(".boot_hdr.conf")))
 const flexspi_nor_config_t qspiflash_config = {
     .pageSize           = 256u,
@@ -64,7 +64,7 @@ const flexspi_nor_config_t qspiflash_config = {
         .deviceModeArg = 0x200,
         .deviceType    = kFlexSpiDeviceType_SerialNOR,
         .sflashPadType = kSerialFlash_4Pads,
-        .serialClkFreq = kFlexSpiSerialClk_60MHz,
+        .serialClkFreq = kFlexSpiSerialClk_100MHz,
         .sflashA1Size  = FLASH_SIZE,
         .lookupTable =
         {