Add another level of procedures to LPC2xxx initialization - procedures for specific targets (setup_lpc<number>) take core clock and adapter clock as parameters. This way "constant" parameters (flash size and type, CPUTAPID, etc.) do not need to be copied if one wishes to change the "variable" parameters - like the core clock or adapter clock - in a board config file or somewhere else.

Signed-off-by: Freddie Chopin <freddie_chopin@op.pl>

1 files changed, 15 insertions, 3 deletions

diff --git a/tcl/target/lpc2294.cfg b/tcl/target/lpc2294.cfg
index b1042af0..83d595de 100644
--- a/tcl/target/lpc2294.cfg
+++ b/tcl/target/lpc2294.cfg
@@ -2,10 +2,22 @@
 
 source [find target/lpc2xxx.cfg]
 
-proc init_targets {} {
-	# 256kB flash and 16kB SRAM, clocked with 12MHz crystal
+# parameters:
+# - core_freq_khz - frequency of core in kHz during flashing, usually equal to connected crystal or internal oscillator, e.g. 12000
+# - adapter_freq_khz - frequency of debug adapter in kHz, should be 8x slower than core_freq_khz, e.g. 1000
+
+proc setup_lpc2294 {core_freq_khz adapter_freq_khz} {
+	# 256kB flash and 16kB SRAM
 	# setup_lpc2xxx <chip_name> <cputapid> <flash_size> <flash_variant> <workarea_size> <core_freq_khz> <adapter_freq_khz>
 	
 	# !! TAPID unknown !!
-	setup_lpc2xxx lpc2294 0xffffffff 0x40000 lpc2000_v1 0x4000 12000 1500
+	setup_lpc2xxx lpc2294 0xffffffff 0x40000 lpc2000_v1 0x4000 $core_freq_khz $adapter_freq_khz
+}
+
+proc init_targets {} {
+	# default to core clocked with 12MHz crystal
+	echo "Warning - assuming default core clock 12MHz! Flashing may fail if actual core clock is different."
+	
+	# setup_lpc2294 <core_freq_khz> <adapter_freq_khz>
+	setup_lpc2294 12000 1500
 }