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authorØyvind Harboe <oyvind.harboe@zylin.com>2010-07-30 22:34:43 +0200
committerØyvind Harboe <oyvind.harboe@zylin.com>2010-07-30 22:36:00 +0200
commitf4c1f08f164ab74a7893742218ac0f8dd4a2e473 (patch)
tree2b44bd6e04f10299c58cbb6e31d0c09d3417f35c /tcl
parenta463670c312befd86224e74a79aa804ee5fbae03 (diff)
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lpc7168: make flash available upon reset init
set user mode to avoid ROM being mapped at address 0 rather than flash. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
Diffstat (limited to 'tcl')
-rw-r--r--tcl/target/lpc1768.cfg19
1 files changed, 19 insertions, 0 deletions
diff --git a/tcl/target/lpc1768.cfg b/tcl/target/lpc1768.cfg
index fc00d78..88827fa 100644
--- a/tcl/target/lpc1768.cfg
+++ b/tcl/target/lpc1768.cfg
@@ -52,3 +52,22 @@ flash bank $_FLASHNAME lpc2000 0x0 0x80000 0 0 $_TARGETNAME \
# a reset-init handler) speeds it up.
jtag_rclk [ expr 4000 / 6 ]
$_TARGETNAME configure -event reset-start { jtag_rclk [ expr 4000 / 6] }
+
+
+$_TARGETNAME configure -event reset-init {
+ # Do not remap 0x0000-0x0020 to anything but the flash (i.e. select
+ # "User Flash Mode" where interrupt vectors are _not_ remapped,
+ # and reside in flash instead).
+ #
+ # See Table 612. Memory Mapping Control register (MEMMAP - 0x400F C040) bit description
+ # Bit Symbol Value Description Reset
+ # value
+ # 0 MAP Memory map control. 0
+ # 0 Boot mode. A portion of the Boot ROM is mapped to address 0.
+ # 1 User mode. The on-chip Flash memory is mapped to address 0.
+ # 31:1 - Reserved. The value read from a reserved bit is not defined. NA
+ #
+ # http://ics.nxp.com/support/documents/microcontrollers/?scope=LPC1768&type=user
+
+ mww 0x400FC040 0x01
+}