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authorMarek Vasut <marek.vasut@gmail.com>2010-10-29 02:57:32 +0200
committerMarek Vasut <marek.vasut@gmail.com>2010-11-05 11:25:57 +0100
commitd5b9c7998c43ee783c224035002cf32f062b0e2b (patch)
tree0f2bcca04c9d4e4ca194d27c0782c4616fb90291
parent1fa91f336ae35a0b7b127c81c46ff9b5041e088e (diff)
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CortexA8: Introduce Freescale i.MX51 variant
This patch introduces support for Cortex A8 based Freescale i.MX51 CPU. This CPU has the Debug Access Port located at a different address (0x60008000) than TI OMAP3 series of CPUs. i.MX51 configuration file based on OMAP3 configuration file and an email from Alan Carvalho de Assis <acassis@gmail.com>. Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
-rw-r--r--tcl/target/imx51.cfg51
1 files changed, 51 insertions, 0 deletions
diff --git a/tcl/target/imx51.cfg b/tcl/target/imx51.cfg
new file mode 100644
index 00000000..b1390ec2
--- /dev/null
+++ b/tcl/target/imx51.cfg
@@ -0,0 +1,51 @@
+# Freescale i.MX51
+
+if { [info exists CHIPNAME] } {
+ set _CHIPNAME $CHIPNAME
+} else {
+ set _CHIPNAME imx51
+}
+
+# CoreSight Debug Access Port
+if { [info exists DAP_TAPID ] } {
+ set _DAP_TAPID $DAP_TAPID
+} else {
+ set _DAP_TAPID 0x1ba00477
+}
+
+jtag newtap $_CHIPNAME DAP -irlen 4 -ircapture 0x1 -irmask 0xf \
+ -expected-id $_DAP_TAPID
+
+# SDMA / no IDCODE
+jtag newtap $_CHIPNAME SDMA -irlen 4 -ircapture 0x0 -irmask 0xf
+
+# SJC
+if { [info exists SJC_TAPID ] } {
+ set _SJC_TAPID SJC_TAPID
+} else {
+ set _SJC_TAPID 0x0190c01d
+}
+
+jtag newtap $_CHIPNAME SJC -irlen 5 -ircapture 0x1 -irmask 0x1f \
+ -expected-id $_SJC_TAPID -ignore-version
+
+# GDB target: Cortex-A8, using DAP
+set _TARGETNAME $_CHIPNAME.cpu
+target create $_TARGETNAME cortex_a8 -chain-position $_CHIPNAME.DAP
+
+# some TCK tycles are required to activate the DEBUG power domain
+jtag configure $_CHIPNAME.SJC -event post-reset "runtest 100"
+
+# have the DAP "always" be active
+jtag configure $_CHIPNAME.SJC -event setup "jtag tapenable $_CHIPNAME.DAP"
+
+proc imx51_dbginit {target} {
+ # General Cortex A8 debug initialisation
+ cortex_a8 dbginit
+}
+
+# Slow speed to be sure it will work
+jtag_rclk 1000
+$_TARGETNAME configure -event "reset-start" { jtag_rclk 1000 }
+
+$_TARGETNAME configure -event reset-assert-post "imx51_dbginit $_TARGETNAME"