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tinyriscv-openocd/tcl/target/kl25.cfg

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cmsis-dap: add initial cmsis-dap support This is based on work from: https://github.com/TheShed/OpenOCD-CMSIS-DAP/tree/cmsis-dap Main changes include moving over to using HIDAPI rather than libusb-1.0 and cleaning up to merge into master. Support for reset using srst has also been added. It has been tested on all the mbed boards as well as the Freedom board from Freescale. These boards only implement SWD mode, however JTAG mode has been tested with a Keil ULINK2 and a stm32 target - but requires a lot more work. Change-Id: I96d5ee1993bc9c0526219ab754c5aad3b55d812d Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk> Signed-off-by: Andrey Yurovsky <yurovsky@gmail.com> Reviewed-on: http://openocd.zylin.com/1542 Tested-by: jenkins
2013-12-19 21:33:19 +00:00
#
# Freescale Kinetis KL25 devices
#
#
# KL25 devices support both JTAG and SWD transports.
#
source [find target/swj-dp.tcl]
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
set _CHIPNAME kl25
}
if { [info exists ENDIAN] } {
set _ENDIAN $ENDIAN
} else {
set _ENDIAN little
}
# Work-area is a space in RAM used for flash programming
# By default use 4kB
if { [info exists WORKAREASIZE] } {
set _WORKAREASIZE $WORKAREASIZE
} else {
set _WORKAREASIZE 0x1000
}
if { [info exists CPUTAPID] } {
set _CPUTAPID $CPUTAPID
} else {
set _CPUTAPID 0x0bc11477
}
swj_newdap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME cortex_m -endian $_ENDIAN -chain-position $_CHIPNAME.cpu
kinetis: Revise CPU un-securing code Old version of the code had several problems, among them are: * Located in a generic ADI source file instead of some Kinetis specific location * Incorrect MCU detection code that would read generic ARM ID registers * Presence of SRST line was mandatory * There didn't seem to be any place where after SRST line assertion it would be de-asserted. * Reset was asserted after waiting for "Flash Controller Ready" bit to be set, which contradicts official programming guide AN4835 * Mass erase algorithm implemented by that code was very strange: ** After mass erase was initiated instead of just polling for the state of "Mass Erase Acknowledged" bit the code would repeatedly initiate mass erase AND poll the state of the "Mass Erase Acknowledged" ** Instead of just polling for the state of "Flash Mass Erase in Progress"(bit 0 in Control register) to wait for the end of the mass erase operation the code would: write 0 to Control register, read out Status register ignoring the result and then read Control register again and see if it is zero. * dap_syssec_kinetis_mdmap assumed that previously selected(before it was called) AP was 0. This commit moves all of the code to kinetis flash driver and introduces three new commands: o "kinetis mdm check_security" -- the intent of that function is to be used as 'examine-end' hook for any Kinetis target that has that kind of JTAG/SWD security mechanism. o "kinetis mdm mass_erase"" -- This function removes secure status from MCU be performing special version of flash mass erase. o "kinetis mdm test_securing" -- Function that allows to test securing fucntionality. All it does is erase the page with flash security settings thus making MCU 'secured'. New version of the code implements the algorithms specified in AN4835 "Production Flash Programming Best Practices for Kinetis K- and L-series MCUs", specifically sections 4.1.1 and 4.2.1. It also adds KL26 MCU to the list of devices for which this security check is performed. Implementing that algorithm also allowed to simplify mass command in kinetis driver, since we no longer need to write security bytes. The result that the old version of mass erase code can now be acheived using 'kinetis mdm mass_erase' Tested on accidentally locked FRDM-KL26Z with KL26 Kinetis MCU. Change-Id: Ic085195edfd963dda9d3d4d8acd1e40cc366b16b Signed-off-by: Andrey Smrinov <andrew.smirnov@gmail.com> Reviewed-on: http://openocd.zylin.com/2034 Tested-by: jenkins Reviewed-by: Paul Fertser <fercerpav@gmail.com> Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
2014-03-08 22:42:28 +00:00
# It is important that "kinetis mdm check_security" is called for
# 'examine-end' event and not 'eximine-start'. Calling it in 'examine-start'
# causes "kinetis mdm check_security" to fail the first time openocd
# calls it when it tries to connect after the CPU has been power-cycled.
$_CHIPNAME.cpu configure -event examine-end {
kinetis mdm check_security
}
cmsis-dap: add initial cmsis-dap support This is based on work from: https://github.com/TheShed/OpenOCD-CMSIS-DAP/tree/cmsis-dap Main changes include moving over to using HIDAPI rather than libusb-1.0 and cleaning up to merge into master. Support for reset using srst has also been added. It has been tested on all the mbed boards as well as the Freedom board from Freescale. These boards only implement SWD mode, however JTAG mode has been tested with a Keil ULINK2 and a stm32 target - but requires a lot more work. Change-Id: I96d5ee1993bc9c0526219ab754c5aad3b55d812d Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk> Signed-off-by: Andrey Yurovsky <yurovsky@gmail.com> Reviewed-on: http://openocd.zylin.com/1542 Tested-by: jenkins
2013-12-19 21:33:19 +00:00
$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
set _FLASHNAME $_CHIPNAME.flash
flash bank $_FLASHNAME kinetis 0 0 0 0 $_TARGETNAME
# if srst is not fitted use SYSRESETREQ to
# perform a soft reset
cortex_m reset_config sysresetreq