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authorJeff Ciesielski <jeffciesielski@gmail.com>2015-01-21 18:57:59 -0800
committerFreddie Chopin <freddie.chopin@gmail.com>2015-11-11 12:08:35 +0000
commit33b048d456e24b9944ff2261cf26b05d630bdd41 (patch)
tree595d052232f9a7dc32d8fa0473b06961684931cc /tcl/target/xmc4xxx.cfg
parent42c24acebd23d758c543c9bf2c2b97bdbd083c35 (diff)
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flash: New driver for XMC4xxx microcontroller family
This is a complete flash driver for the Infineon XMC4xxx family of microcontrollers, based on the TMS570 driver by Andrey Yurovsky. The driver attempts to discover the particular variant of MCU via a combination of the SCU register (to determine if this is indeed an XMC4xxx part) and the FLASH0_ID register (to determine the variant). If this fails, the driver will not load. The driver has been added to the README and documentation. Tests: * Hardware: XMC4500 (XMC4500_relax), XMC4200 (XMC4200 enterprise) * SWD + JTAG * Binary: 144k, 1M Note: * Flash protect only partly tested. These parts only allow the flash protection registers (UCB) to be written 4 times total, and my devkits have run out of uses (more on the way) Future Work: * User 1/2(permalock) locking support via custom command * In-memory flash loader bootstrap (flashing is rather slow...) Change-Id: I1d3345d5255d8de8dc4175cf987eb4a037a8cf7f Signed-off-by: Jeff Ciesielski <jeffciesielski@gmail.com> Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-on: http://openocd.zylin.com/2488 Tested-by: jenkins Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Diffstat (limited to 'tcl/target/xmc4xxx.cfg')
-rw-r--r--tcl/target/xmc4xxx.cfg13
1 files changed, 13 insertions, 0 deletions
diff --git a/tcl/target/xmc4xxx.cfg b/tcl/target/xmc4xxx.cfg
index 34f0327..bc00777 100644
--- a/tcl/target/xmc4xxx.cfg
+++ b/tcl/target/xmc4xxx.cfg
@@ -39,6 +39,19 @@ swj_newdap $_CHIPNAME cpu -irlen 4 -expected-id $_CPU_TAPID
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME cortex_m -chain-position $_TARGETNAME
+# Work-area is a space in RAM used for flash programming
+# By default use 16 kB
+if { [info exists WORKAREASIZE] } {
+ set _WORKAREASIZE $WORKAREASIZE
+} else {
+ set _WORKAREASIZE 0x1000
+}
+
+$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
+
+set _FLASHNAME $_CHIPNAME.flash
+flash bank $_FLASHNAME xmc4xxx 0x0C000000 0 0 0 $_TARGETNAME
+
if { ![using_hla] } {
cortex_m reset_config sysresetreq
}