diff --git a/configs/README.txt b/configs/README.txt
index f6f12d4e423..c7249039db4 100644
--- a/configs/README.txt
+++ b/configs/README.txt
@@ -440,8 +440,10 @@ defconfig -- This is a configuration file similar to the Linux
 
 	Stack and heap information
 
-		CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-		  operation from FLASH.
+		CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+		  operation from FLASH but must copy initialized .data sections to RAM.
+		CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+		  but copy themselves entirely into RAM for better performance.
 		CONFIG_STACK_POINTER - The initial stack pointer
 		CONFIG_IDLETHREAD_STACKSIZE - The size of the initial stack.
 		  This is the thread that (1) performs the inital boot of the system up
diff --git a/configs/c5471evm/defconfig b/configs/c5471evm/defconfig
index e954025ce6d..5cf56d0cc70 100644
--- a/configs/c5471evm/defconfig
+++ b/configs/c5471evm/defconfig
@@ -387,8 +387,10 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -404,7 +406,8 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=4096
diff --git a/configs/c5471evm/dhcpconfig b/configs/c5471evm/dhcpconfig
index f07d76589cd..7ffaeb22414 100644
--- a/configs/c5471evm/dhcpconfig
+++ b/configs/c5471evm/dhcpconfig
@@ -387,8 +387,10 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -404,7 +406,8 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=4096
diff --git a/configs/c5471evm/netconfig b/configs/c5471evm/netconfig
index 1847c76d0c6..4f61659d319 100644
--- a/configs/c5471evm/netconfig
+++ b/configs/c5471evm/netconfig
@@ -387,8 +387,10 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -404,7 +406,8 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=4096
diff --git a/configs/c5471evm/nshconfig b/configs/c5471evm/nshconfig
index 95ef789ccef..ae00518f44b 100644
--- a/configs/c5471evm/nshconfig
+++ b/configs/c5471evm/nshconfig
@@ -387,8 +387,10 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -404,7 +406,8 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=4096
diff --git a/configs/ez80f910200kitg/ostest/defconfig b/configs/ez80f910200kitg/ostest/defconfig
index bdf220cd4fe..876fbd65cef 100644
--- a/configs/ez80f910200kitg/ostest/defconfig
+++ b/configs/ez80f910200kitg/ostest/defconfig
@@ -727,8 +727,10 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -744,7 +746,8 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=1024
diff --git a/configs/ez80f910200zco/dhcpd/defconfig b/configs/ez80f910200zco/dhcpd/defconfig
index eebc3b89195..499d5f9d412 100644
--- a/configs/ez80f910200zco/dhcpd/defconfig
+++ b/configs/ez80f910200zco/dhcpd/defconfig
@@ -775,8 +775,10 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -792,7 +794,8 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=1024
diff --git a/configs/ez80f910200zco/httpd/defconfig b/configs/ez80f910200zco/httpd/defconfig
index 3f1ab07b0f1..413d9073171 100644
--- a/configs/ez80f910200zco/httpd/defconfig
+++ b/configs/ez80f910200zco/httpd/defconfig
@@ -783,8 +783,10 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -800,7 +802,8 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=1024
diff --git a/configs/ez80f910200zco/nettest/defconfig b/configs/ez80f910200zco/nettest/defconfig
index aec18796c71..d0d5af04b05 100644
--- a/configs/ez80f910200zco/nettest/defconfig
+++ b/configs/ez80f910200zco/nettest/defconfig
@@ -768,8 +768,10 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -785,7 +787,8 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=1024
diff --git a/configs/ez80f910200zco/nsh/defconfig b/configs/ez80f910200zco/nsh/defconfig
index 1edcddbb4b8..754d3bb8c51 100644
--- a/configs/ez80f910200zco/nsh/defconfig
+++ b/configs/ez80f910200zco/nsh/defconfig
@@ -768,8 +768,10 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -785,7 +787,8 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=1024
diff --git a/configs/ez80f910200zco/ostest/defconfig b/configs/ez80f910200zco/ostest/defconfig
index 3902fa7957b..7d2d2455cf5 100644
--- a/configs/ez80f910200zco/ostest/defconfig
+++ b/configs/ez80f910200zco/ostest/defconfig
@@ -751,8 +751,10 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -768,7 +770,8 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=1024
diff --git a/configs/ez80f910200zco/poll/defconfig b/configs/ez80f910200zco/poll/defconfig
index 9c32438734f..0997f71c352 100644
--- a/configs/ez80f910200zco/poll/defconfig
+++ b/configs/ez80f910200zco/poll/defconfig
@@ -768,8 +768,10 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -785,7 +787,8 @@ CONFIG_EXAMPLE_WGET_NETMASK=(255L<<24|255L<<16|255L<<8|0L)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=1024
diff --git a/configs/m68332evb/defconfig b/configs/m68332evb/defconfig
index f6b852522b9..b5c730aae49 100644
--- a/configs/m68332evb/defconfig
+++ b/configs/m68332evb/defconfig
@@ -328,8 +328,10 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_IDLETHREAD_STACKSIZE - The size of the initial stack.
@@ -344,7 +346,8 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=4096
 CONFIG_USERMAIN_STACKSIZE=4096
diff --git a/configs/mcu123-lpc214x/nsh/defconfig b/configs/mcu123-lpc214x/nsh/defconfig
index 77d107b9b4d..bf44ee2657b 100644
--- a/configs/mcu123-lpc214x/nsh/defconfig
+++ b/configs/mcu123-lpc214x/nsh/defconfig
@@ -558,8 +558,10 @@ CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -575,7 +577,8 @@ CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=y
+CONFIG_BOOT_RUNFROMFLASH=y
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=2048
diff --git a/configs/mcu123-lpc214x/ostest/defconfig b/configs/mcu123-lpc214x/ostest/defconfig
index fd8f71119f8..b7a87699c93 100644
--- a/configs/mcu123-lpc214x/ostest/defconfig
+++ b/configs/mcu123-lpc214x/ostest/defconfig
@@ -549,8 +549,10 @@ CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -566,7 +568,8 @@ CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=y
+CONFIG_BOOT_RUNFROMFLASH=y
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=2048
diff --git a/configs/mcu123-lpc214x/usbserial/defconfig b/configs/mcu123-lpc214x/usbserial/defconfig
index ae5b2a86ebf..8c0396ded58 100644
--- a/configs/mcu123-lpc214x/usbserial/defconfig
+++ b/configs/mcu123-lpc214x/usbserial/defconfig
@@ -570,8 +570,10 @@ CONFIG_EXAMPLES_USBSERIAL_ONLYBIG=n
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -587,7 +589,8 @@ CONFIG_EXAMPLES_USBSERIAL_ONLYBIG=n
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=y
+CONFIG_BOOT_RUNFROMFLASH=y
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=2048
diff --git a/configs/mcu123-lpc214x/usbstorage/defconfig b/configs/mcu123-lpc214x/usbstorage/defconfig
index 62935c9f28d..71be91b4b54 100644
--- a/configs/mcu123-lpc214x/usbstorage/defconfig
+++ b/configs/mcu123-lpc214x/usbstorage/defconfig
@@ -613,8 +613,10 @@ CONFIG_EXAMPLES_USBSTRG_TRACEINTERRUPTS=n
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -630,7 +632,8 @@ CONFIG_EXAMPLES_USBSTRG_TRACEINTERRUPTS=n
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=y
+CONFIG_BOOT_RUNFROMFLASH=y
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=2048
diff --git a/configs/ntosd-dm320/nettest/defconfig b/configs/ntosd-dm320/nettest/defconfig
index 080a4f1448f..200e378dcac 100644
--- a/configs/ntosd-dm320/nettest/defconfig
+++ b/configs/ntosd-dm320/nettest/defconfig
@@ -487,8 +487,10 @@ CONFIG_DM9X_ETRANS=n
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -504,7 +506,8 @@ CONFIG_DM9X_ETRANS=n
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=4096
diff --git a/configs/ntosd-dm320/nsh/defconfig b/configs/ntosd-dm320/nsh/defconfig
index 1bb95f2c6e6..676e8e387bc 100644
--- a/configs/ntosd-dm320/nsh/defconfig
+++ b/configs/ntosd-dm320/nsh/defconfig
@@ -549,8 +549,10 @@ CONFIG_DM9X_ETRANS=n
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -566,7 +568,8 @@ CONFIG_DM9X_ETRANS=n
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=4096
diff --git a/configs/ntosd-dm320/ostest/defconfig b/configs/ntosd-dm320/ostest/defconfig
index cc064c03fb5..4f83616a53e 100644
--- a/configs/ntosd-dm320/ostest/defconfig
+++ b/configs/ntosd-dm320/ostest/defconfig
@@ -479,8 +479,10 @@ CONFIG_DM9X_ETRANS=n
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -496,7 +498,8 @@ CONFIG_DM9X_ETRANS=n
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=4096
diff --git a/configs/ntosd-dm320/poll/defconfig b/configs/ntosd-dm320/poll/defconfig
index 50ef31ff789..6760713876c 100644
--- a/configs/ntosd-dm320/poll/defconfig
+++ b/configs/ntosd-dm320/poll/defconfig
@@ -494,8 +494,10 @@ CONFIG_DM9X_ETRANS=n
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -511,7 +513,8 @@ CONFIG_DM9X_ETRANS=n
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=4096
diff --git a/configs/ntosd-dm320/udp/defconfig b/configs/ntosd-dm320/udp/defconfig
index 378277f1ada..eca9836cdb7 100644
--- a/configs/ntosd-dm320/udp/defconfig
+++ b/configs/ntosd-dm320/udp/defconfig
@@ -495,8 +495,10 @@ CONFIG_DM9X_ETRANS=n
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -512,7 +514,8 @@ CONFIG_DM9X_ETRANS=n
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=4096
diff --git a/configs/ntosd-dm320/uip/defconfig b/configs/ntosd-dm320/uip/defconfig
index 3eefc9dbed4..5033f9c7038 100644
--- a/configs/ntosd-dm320/uip/defconfig
+++ b/configs/ntosd-dm320/uip/defconfig
@@ -495,8 +495,10 @@ CONFIG_DM9X_ETRANS=n
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -512,7 +514,8 @@ CONFIG_DM9X_ETRANS=n
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=4096
diff --git a/configs/olimex-strp711/ostest/defconfig b/configs/olimex-strp711/ostest/defconfig
index c5cc4816f25..909c626e8c1 100644
--- a/configs/olimex-strp711/ostest/defconfig
+++ b/configs/olimex-strp711/ostest/defconfig
@@ -620,8 +620,10 @@ CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -637,7 +639,8 @@ CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=y
+CONFIG_BOOT_RUNFROMFLASH=y
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=2048
diff --git a/configs/pjrc-8051/defconfig b/configs/pjrc-8051/defconfig
index e5a14dafe37..c93ef327da1 100644
--- a/configs/pjrc-8051/defconfig
+++ b/configs/pjrc-8051/defconfig
@@ -325,8 +325,10 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -342,7 +344,8 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=y
 CONFIG_IDLETHREAD_STACKSIZE=
 CONFIG_USERMAIN_STACKSIZE=
diff --git a/configs/sim/mount/defconfig b/configs/sim/mount/defconfig
index 78c75b49391..2aa8f65bc98 100644
--- a/configs/sim/mount/defconfig
+++ b/configs/sim/mount/defconfig
@@ -329,8 +329,10 @@ CONFIG_EXAMPLES_MOUNT_DEVNAME="/dev/ram0"
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -346,7 +348,8 @@ CONFIG_EXAMPLES_MOUNT_DEVNAME="/dev/ram0"
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=4096
 CONFIG_USERMAIN_STACKSIZE=4096
diff --git a/configs/sim/nettest/defconfig b/configs/sim/nettest/defconfig
index 62e7236e20f..2ea4667cce4 100644
--- a/configs/sim/nettest/defconfig
+++ b/configs/sim/nettest/defconfig
@@ -328,8 +328,10 @@ CONFIG_EXAMPLES_MOUNT_DEVNAME="/dev/ram0"
 
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -345,7 +347,8 @@ CONFIG_EXAMPLES_MOUNT_DEVNAME="/dev/ram0"
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=4096
 CONFIG_USERMAIN_STACKSIZE=4096
diff --git a/configs/sim/nsh/defconfig b/configs/sim/nsh/defconfig
index 2bfd27cc2a9..efde031bf48 100644
--- a/configs/sim/nsh/defconfig
+++ b/configs/sim/nsh/defconfig
@@ -372,8 +372,10 @@ CONFIG_EXAMPLES_MOUNT_DEVNAME="/dev/ram0"
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -389,7 +391,8 @@ CONFIG_EXAMPLES_MOUNT_DEVNAME="/dev/ram0"
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=4096
 CONFIG_USERMAIN_STACKSIZE=4096
diff --git a/configs/sim/nx/defconfig b/configs/sim/nx/defconfig
index e7beb8144ab..c2ecc2240c2 100644
--- a/configs/sim/nx/defconfig
+++ b/configs/sim/nx/defconfig
@@ -504,8 +504,10 @@ CONFIG_EXAMPLES_MOUNT_DEVNAME="/dev/ram0"
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -521,7 +523,8 @@ CONFIG_EXAMPLES_MOUNT_DEVNAME="/dev/ram0"
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=4096
 CONFIG_USERMAIN_STACKSIZE=4096
diff --git a/configs/sim/nx/defconfig-x11 b/configs/sim/nx/defconfig-x11
index e61085c145c..fcd242e36e7 100644
--- a/configs/sim/nx/defconfig-x11
+++ b/configs/sim/nx/defconfig-x11
@@ -498,8 +498,10 @@ CONFIG_EXAMPLES_MOUNT_DEVNAME="/dev/ram0"
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -515,7 +517,8 @@ CONFIG_EXAMPLES_MOUNT_DEVNAME="/dev/ram0"
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=4096
 CONFIG_USERMAIN_STACKSIZE=4096
diff --git a/configs/sim/ostest/defconfig b/configs/sim/ostest/defconfig
index 5ef40cd3004..c8c5690d94e 100644
--- a/configs/sim/ostest/defconfig
+++ b/configs/sim/ostest/defconfig
@@ -336,8 +336,10 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -353,7 +355,8 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=4096
 CONFIG_USERMAIN_STACKSIZE=4096
diff --git a/configs/sim/pashello/defconfig b/configs/sim/pashello/defconfig
index e1710f00efb..f11a73cd772 100644
--- a/configs/sim/pashello/defconfig
+++ b/configs/sim/pashello/defconfig
@@ -317,8 +317,10 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -334,7 +336,8 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=4096
 CONFIG_USERMAIN_STACKSIZE=4096
diff --git a/configs/skp16c26/ostest/defconfig b/configs/skp16c26/ostest/defconfig
index 40016aeb4f8..24da66e7279 100644
--- a/configs/skp16c26/ostest/defconfig
+++ b/configs/skp16c26/ostest/defconfig
@@ -509,8 +509,10 @@ CONFIG_DM9X_ETRANS=n
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -526,7 +528,8 @@ CONFIG_DM9X_ETRANS=n
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=256
diff --git a/configs/us7032evb1/nsh/defconfig b/configs/us7032evb1/nsh/defconfig
index d1d8a751c02..99398ad220a 100644
--- a/configs/us7032evb1/nsh/defconfig
+++ b/configs/us7032evb1/nsh/defconfig
@@ -549,8 +549,10 @@ CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -566,7 +568,8 @@ CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=1024
diff --git a/configs/us7032evb1/ostest/defconfig b/configs/us7032evb1/ostest/defconfig
index d1a78697956..760dca9c431 100644
--- a/configs/us7032evb1/ostest/defconfig
+++ b/configs/us7032evb1/ostest/defconfig
@@ -549,8 +549,10 @@ CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
@@ -566,7 +568,8 @@ CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_STACK_POINTER=
 CONFIG_IDLETHREAD_STACKSIZE=1024
diff --git a/configs/xtrs/nsh/defconfig b/configs/xtrs/nsh/defconfig
index 05316c7daf3..08cb4fe1313 100644
--- a/configs/xtrs/nsh/defconfig
+++ b/configs/xtrs/nsh/defconfig
@@ -364,8 +364,10 @@ CONFIG_EXAMPLES_NSH_FATMOUNTPT=/tmp
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -381,7 +383,8 @@ CONFIG_EXAMPLES_NSH_FATMOUNTPT=/tmp
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=1024
 CONFIG_USERMAIN_STACKSIZE=1024
diff --git a/configs/xtrs/ostest/defconfig b/configs/xtrs/ostest/defconfig
index 5fc44af77ab..9f548bb789f 100644
--- a/configs/xtrs/ostest/defconfig
+++ b/configs/xtrs/ostest/defconfig
@@ -321,8 +321,10 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -338,7 +340,8 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=1024
 CONFIG_USERMAIN_STACKSIZE=1024
diff --git a/configs/xtrs/pashello/defconfig b/configs/xtrs/pashello/defconfig
index 97800334f52..48be8ac0d0c 100644
--- a/configs/xtrs/pashello/defconfig
+++ b/configs/xtrs/pashello/defconfig
@@ -321,8 +321,10 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -338,7 +340,8 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=1024
 CONFIG_USERMAIN_STACKSIZE=1024
diff --git a/configs/z16f2800100zcog/ostest/defconfig b/configs/z16f2800100zcog/ostest/defconfig
index 81cf31e79f6..c0868bad6f8 100644
--- a/configs/z16f2800100zcog/ostest/defconfig
+++ b/configs/z16f2800100zcog/ostest/defconfig
@@ -349,8 +349,10 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -366,7 +368,8 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=4096
 CONFIG_USERMAIN_STACKSIZE=4096
diff --git a/configs/z16f2800100zcog/pashello/defconfig b/configs/z16f2800100zcog/pashello/defconfig
index ee04bf8fb5d..5ac44e40c6b 100644
--- a/configs/z16f2800100zcog/pashello/defconfig
+++ b/configs/z16f2800100zcog/pashello/defconfig
@@ -349,8 +349,10 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -366,7 +368,8 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=4096
 CONFIG_USERMAIN_STACKSIZE=4096
diff --git a/configs/z80sim/nsh/defconfig b/configs/z80sim/nsh/defconfig
index b0fc2e9ef74..ba16ff1406d 100644
--- a/configs/z80sim/nsh/defconfig
+++ b/configs/z80sim/nsh/defconfig
@@ -354,8 +354,10 @@ CONFIG_EXAMPLES_NSH_FATMOUNTPT=/tmp
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -371,7 +373,8 @@ CONFIG_EXAMPLES_NSH_FATMOUNTPT=/tmp
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=1024
 CONFIG_USERMAIN_STACKSIZE=1024
diff --git a/configs/z80sim/ostest/defconfig b/configs/z80sim/ostest/defconfig
index a976693688d..2224437731a 100644
--- a/configs/z80sim/ostest/defconfig
+++ b/configs/z80sim/ostest/defconfig
@@ -311,8 +311,10 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -328,7 +330,8 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=1024
 CONFIG_USERMAIN_STACKSIZE=1024
diff --git a/configs/z80sim/pashello/defconfig b/configs/z80sim/pashello/defconfig
index 5827d145743..a2bab3eb720 100644
--- a/configs/z80sim/pashello/defconfig
+++ b/configs/z80sim/pashello/defconfig
@@ -311,8 +311,10 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -328,7 +330,8 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=1024
 CONFIG_USERMAIN_STACKSIZE=1024
diff --git a/configs/z8encore000zco/ostest/defconfig b/configs/z8encore000zco/ostest/defconfig
index c127c5ad788..f95689f87ef 100644
--- a/configs/z8encore000zco/ostest/defconfig
+++ b/configs/z8encore000zco/ostest/defconfig
@@ -350,8 +350,10 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -367,7 +369,8 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=256
 CONFIG_USERMAIN_STACKSIZE=256
diff --git a/configs/z8f64200100kit/ostest/defconfig b/configs/z8f64200100kit/ostest/defconfig
index 400fd1a0b06..59c1a469ce4 100644
--- a/configs/z8f64200100kit/ostest/defconfig
+++ b/configs/z8f64200100kit/ostest/defconfig
@@ -350,8 +350,10 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
-#   operation from FLASH.
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
 # CONFIG_CUSTOM_STACK - The up_ implementation will handle
 #   all stack operations outside of the nuttx model.
 # CONFIG_STACK_POINTER - The initial stack pointer
@@ -367,7 +369,8 @@ CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
 # CONFIG_HEAP_BASE - The beginning of the heap
 # CONFIG_HEAP_SIZE - The size of the heap
 #
-CONFIG_BOOT_FROM_FLASH=n
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n
 CONFIG_IDLETHREAD_STACKSIZE=256
 CONFIG_USERMAIN_STACKSIZE=256