flash/nor: Add support for TI CC26xx/CC13xx flash

Added cc26xx flash driver to support the TI CC26xx and CC13xx
microcontrollers. Driver is capable of determining which MCU
is connected and configures itself accordingly. Added config
files for four specific variants: CC26x0, CC13x0, CC26x2, and
CC13x2.

Note that the flash loader code is based on the sources used
to support flash in Code Composer Studio and Uniflash from TI.

Removed cc26xx.cfg file made obsolete by this patch.

Change-Id: Ie2b0f74f8af7517a9184704b839677d1c9787862
Signed-off-by: Edward Fewell <efewell@ti.com>
Reviewed-on: http://openocd.zylin.com/4358
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-by: Fredrik Hederstierna <fredrik@hederstierna.com>

8 files changed, 87 insertions, 14 deletions

diff --git a/tcl/board/ti_cc13x0_launchpad.cfg b/tcl/board/ti_cc13x0_launchpad.cfg
new file mode 100644
index 00000000..9e1c1ea3
--- /dev/null
+++ b/tcl/board/ti_cc13x0_launchpad.cfg
@@ -0,0 +1,7 @@
+#
+# TI CC13x0 LaunchPad Evaluation Kit
+#
+source [find interface/xds110.cfg]
+transport select jtag
+adapter_khz 2500
+source [find target/ti_cc13x0.cfg]
diff --git a/tcl/board/ti_cc13x2_launchpad.cfg b/tcl/board/ti_cc13x2_launchpad.cfg
new file mode 100644
index 00000000..18c5ce51
--- /dev/null
+++ b/tcl/board/ti_cc13x2_launchpad.cfg
@@ -0,0 +1,7 @@
+#
+# TI CC13x2 LaunchPad Evaluation Kit
+#
+source [find interface/xds110.cfg]
+adapter_khz 2500
+transport select jtag
+source [find target/ti_cc13x2.cfg]
diff --git a/tcl/board/ti_cc26x0_launchpad.cfg b/tcl/board/ti_cc26x0_launchpad.cfg
new file mode 100644
index 00000000..3613a47f
--- /dev/null
+++ b/tcl/board/ti_cc26x0_launchpad.cfg
@@ -0,0 +1,7 @@
+#
+# TI CC26x0 LaunchPad Evaluation Kit
+#
+source [find interface/xds110.cfg]
+adapter_khz 2500
+transport select jtag
+source [find target/ti_cc26x0.cfg]
diff --git a/tcl/board/ti_cc26x2_launchpad.cfg b/tcl/board/ti_cc26x2_launchpad.cfg
new file mode 100644
index 00000000..2f2b34b4
--- /dev/null
+++ b/tcl/board/ti_cc26x2_launchpad.cfg
@@ -0,0 +1,7 @@
+#
+# TI CC26x2 LaunchPad Evaluation Kit
+#
+source [find interface/xds110.cfg]
+adapter_khz 2500
+transport select jtag
+source [find target/ti_cc26x2.cfg]
diff --git a/tcl/target/ti_cc13x0.cfg b/tcl/target/ti_cc13x0.cfg
new file mode 100644
index 00000000..6ea9bd80
--- /dev/null
+++ b/tcl/target/ti_cc13x0.cfg
@@ -0,0 +1,11 @@
+#
+# Texas Instruments CC13x0 - ARM Cortex-M3
+#
+# http://www.ti.com
+#
+
+set CHIPNAME cc13x0
+set JRC_TAPID 0x0B9BE02F
+set WORKAREASIZE 0x4000
+
+source [find target/ti_cc26x0.cfg]
diff --git a/tcl/target/ti_cc13x2.cfg b/tcl/target/ti_cc13x2.cfg
new file mode 100644
index 00000000..280eef45
--- /dev/null
+++ b/tcl/target/ti_cc13x2.cfg
@@ -0,0 +1,11 @@
+#
+# Texas Instruments CC13x2 - ARM Cortex-M4
+#
+# http://www.ti.com
+#
+
+set CHIPNAME cc13x2
+set JRC_TAPID 0x0BB4102F
+set WORKAREASIZE 0x7000
+
+source [find target/ti_cc26x0.cfg]
diff --git a/tcl/target/cc26xx.cfg b/tcl/target/ti_cc26x0.cfg
index c3ac8470..7efecb66 100755..100644
--- a/tcl/target/cc26xx.cfg
+++ b/tcl/target/ti_cc26x0.cfg
@@ -1,23 +1,25 @@
-# Config for Texas Instruments low power SoC CC26xx family
-
-adapter_khz 100
+#
+# Texas Instruments CC26x0 - ARM Cortex-M3
+#
+# http://www.ti.com
+#
 
 source [find target/icepick.cfg]
 source [find target/ti-cjtag.cfg]
 
 if { [info exists CHIPNAME] } {
-   set _CHIPNAME $CHIPNAME
+	set _CHIPNAME $CHIPNAME
 } else {
-   set _CHIPNAME cc26xx
+	set _CHIPNAME cc26x0
 }
 
 #
 # Main DAP
 #
 if { [info exists DAP_TAPID] } {
-   set _DAP_TAPID $DAP_TAPID
+	set _DAP_TAPID $DAP_TAPID
 } else {
-   set _DAP_TAPID 0x4BA00477
+	set _DAP_TAPID 0x4BA00477
 }
 jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_DAP_TAPID -disable
 jtag configure $_CHIPNAME.cpu -event tap-enable "icepick_c_tapenable $_CHIPNAME.jrc 0"
@@ -26,19 +28,29 @@ jtag configure $_CHIPNAME.cpu -event tap-enable "icepick_c_tapenable $_CHIPNAME.
 # ICEpick-C (JTAG route controller)
 #
 if { [info exists JRC_TAPID] } {
-   set _JRC_TAPID $JRC_TAPID
+	set _JRC_TAPID $JRC_TAPID
 } else {
-   set _JRC_TAPID 0x1B99A02F
+	set _JRC_TAPID 0x0B99A02F
 }
 jtag newtap $_CHIPNAME jrc -irlen 6 -ircapture 0x1 -irmask 0x3f -expected-id $_JRC_TAPID -ignore-version
-# A start sequence is needed to change from cJTAG (Compact JTAG) to
-# 4-pin JTAG before talking via JTAG commands
 jtag configure $_CHIPNAME.jrc -event setup "jtag tapenable $_CHIPNAME.cpu"
+# A start sequence is needed to change from 2-pin cJTAG to 4-pin JTAG
 jtag configure $_CHIPNAME.jrc -event post-reset "ti_cjtag_to_4pin_jtag $_CHIPNAME.jrc"
 
-#
-# Cortex-M3 target
-#
 set _TARGETNAME $_CHIPNAME.cpu
 dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
 target create $_TARGETNAME cortex_m -dap $_CHIPNAME.dap
+
+if { [info exists WORKAREASIZE] } {
+	set _WORKAREASIZE $WORKAREASIZE
+} else {
+	set _WORKAREASIZE 0x4000
+}
+
+$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
+
+set _FLASHNAME $_CHIPNAME.flash
+flash bank $_FLASHNAME cc26xx 0 0 0 0 $_TARGETNAME
+
+reset_config srst_only
+adapter_nsrst_delay 100
diff --git a/tcl/target/ti_cc26x2.cfg b/tcl/target/ti_cc26x2.cfg
new file mode 100644
index 00000000..ecee3fab
--- /dev/null
+++ b/tcl/target/ti_cc26x2.cfg
@@ -0,0 +1,11 @@
+#
+# Texas Instruments CC26x2 - ARM Cortex-M4
+#
+# http://www.ti.com
+#
+
+set CHIPNAME cc26x2
+set JRC_TAPID 0x0BB4102F
+set WORKAREASIZE 0x7000
+
+source [find target/ti_cc26x0.cfg]