Add common LPC2xxx setup procedure, use in all LPC2xxx files.

[fw/openocd] / tcl / target / lpc1768.cfg

diff --git a/tcl/target/lpc1768.cfg b/tcl/target/lpc1768.cfg
index fc00d78def6cc91faea2cfecddbba38ea1c822f2..2059aedd866440b60e50532cfebb6f3440b4c901 100644 (file)
--- a/tcl/target/lpc1768.cfg
+++ b/tcl/target/lpc1768.cfg
@@ -1,5 +1,9 @@
 # NXP LPC1768 Cortex-M3 with 512kB Flash and 32kB+32kB Local On-Chip SRAM,
 
+# LPC17xx chips support both JTAG and SWD transports.
+# Adapt based on what transport is active.
+source [find target/swj-dp.tcl]
+
 if { [info exists CHIPNAME] } {
        set  _CHIPNAME $CHIPNAME
 } else {
@@ -28,10 +32,8 @@ if { [info exists CPUTAPID ] } {
 adapter_nsrst_delay 200
 jtag_ntrst_delay 200
 
-# LPC2000 & LPC1700 -> SRST causes TRST
-reset_config srst_pulls_trst
-
-jtag newtap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
+#jtag newtap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
+swj_newdap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
 
 set _TARGETNAME $_CHIPNAME.cpu
 target create $_TARGETNAME cortex_m3 -chain-position $_TARGETNAME
@@ -47,8 +49,25 @@ set _FLASHNAME $_CHIPNAME.flash
 flash bank $_FLASHNAME lpc2000 0x0 0x80000 0 0 $_TARGETNAME \
        lpc1700 $_CCLK calc_checksum
 
-# JTAG clock should be CCLK/6 (unless using adaptive clocking)
-# CCLK is 4 MHz after reset, and until board-specific code (like
-# a reset-init handler) speeds it up.
-jtag_rclk [ expr 4000 / 6 ]
-$_TARGETNAME configure -event reset-start { jtag_rclk [ expr 4000 / 6]  }
+# Run with *real slow* clock by default since the
+# boot rom could have been playing with the PLL, so
+# we have no idea what clock the target is running at.
+jtag_khz 10
+
+$_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
+}