# SPDX-License-Identifier: GPL-2.0-or-later
# script for stm32l5x family
+# stm32l5x devices support both JTAG and SWD transports.
-#
-# stm32l5 devices support both JTAG and SWD transports.
-#
source [find target/swj-dp.tcl]
source [find mem_helper.tcl]
set _CHIPNAME stm32l5x
}
-set _ENDIAN little
+source [find target/stm32x5x_common.cfg]
-# Work-area is a space in RAM used for flash programming
-# By default use 64kB
-if { [info exists WORKAREASIZE] } {
- set _WORKAREASIZE $WORKAREASIZE
-} else {
- set _WORKAREASIZE 0x10000
-}
-
-#jtag scan chain
-if { [info exists CPUTAPID] } {
- set _CPUTAPID $CPUTAPID
-} else {
- if { [using_jtag] } {
- # See STM Document RM0438
- # RM0438 Rev5, Section 52.2.8 JTAG debug port - Table 425. JTAG-DP data registers
- # Corresponds to Cortex®-M33 JTAG debug port ID code
- set _CPUTAPID 0x0ba04477
- } {
- # SWD IDCODE (single drop, arm)
- set _CPUTAPID 0x0be12477
- }
-}
-
-swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
-dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
-
-if {[using_jtag]} {
- jtag newtap $_CHIPNAME bs -irlen 5
-}
-
-set _TARGETNAME $_CHIPNAME.cpu
-target create $_TARGETNAME cortex_m -endian $_ENDIAN -dap $_CHIPNAME.dap
-
-# use non-secure RAM by default
-$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
-
-# create sec/ns flash and otp memories (sizes will be probed)
-flash bank $_CHIPNAME.flash_ns stm32l4x 0x08000000 0 0 0 $_TARGETNAME
-flash bank $_CHIPNAME.flash_alias_s stm32l4x 0x0C000000 0 0 0 $_TARGETNAME
-flash bank $_CHIPNAME.otp stm32l4x 0x0BFA0000 0 0 0 $_TARGETNAME
-
-# Common knowledges tells JTAG speed should be <= F_CPU/6.
-# F_CPU after reset is MSI 4MHz, so use F_JTAG = 500 kHz to stay on
-# the safe side.
-#
-# Note that there is a pretty wide band where things are
-# more or less stable, see http://openocd.zylin.com/#/c/3366/
-adapter speed 500
-
-adapter srst delay 100
-if {[using_jtag]} {
- jtag_ntrst_delay 100
-}
-
-reset_config srst_nogate
-
-if {![using_hla]} {
- # if srst is not fitted use SYSRESETREQ to
- # perform a soft reset
- cortex_m reset_config sysresetreq
-}
-
-proc is_secure {} {
- # read Debug Security Control and Status Regsiter (DSCSR) and check CDS (bit 16)
- set DSCSR [mrw 0xE000EE08]
- return [expr {($DSCSR & (1 << 16)) != 0}]
-}
-
-proc clock_config_110_mhz {} {
- set offset [expr {[is_secure] ? 0x10000000 : 0}]
+proc stm32l5x_clock_config {} {
+ set offset [expr {[stm32x5x_is_secure] ? 0x10000000 : 0}]
# MCU clock is MSI (4MHz) after reset, set MCU freq at 110 MHz with PLL
# RCC_APB1ENR1 = PWREN
mww [expr {0x40021058 + $offset}] 0x10000000
while {([mrw [expr {0x40021008 + $offset}]] & 0x0C) != 0x0C} {}
}
-proc ahb_ap_non_secure_access {} {
- # SPROT=1=Non Secure access, Priv=1
- [[target current] cget -dap] apcsw 0x4B000000 0x4F000000
-}
-
-proc ahb_ap_secure_access {} {
- # SPROT=0=Secure access, Priv=1
- [[target current] cget -dap] apcsw 0x0B000000 0x4F000000
-}
-
$_TARGETNAME configure -event reset-init {
- clock_config_110_mhz
+ stm32l5x_clock_config
# Boost JTAG frequency
adapter speed 4000
}
-
-$_TARGETNAME configure -event reset-start {
- # Reset clock is MSI (4 MHz)
- adapter speed 480
-}
-
-$_TARGETNAME configure -event examine-end {
- # DBGMCU_CR |= DBG_STANDBY | DBG_STOP
- mmw 0xE0044004 0x00000006 0
-
- # Stop watchdog counters during halt
- # DBGMCU_APB1_FZ |= DBG_IWDG_STOP | DBG_WWDG_STOP
- mmw 0xE0044008 0x00001800 0
-}
-
-$_TARGETNAME configure -event halted {
- set secure [is_secure]
-
- if {$secure} {
- set secure_str "Secure"
- ahb_ap_secure_access
- } else {
- set secure_str "Non-Secure"
- ahb_ap_non_secure_access
- }
-
- # print the secure state only when it changes
- set _TARGETNAME [target current]
- global $_TARGETNAME.secure
-
- if {![info exists $_TARGETNAME.secure] || $secure != [set $_TARGETNAME.secure]} {
- echo "CPU in $secure_str state"
- # update saved security state
- set $_TARGETNAME.secure $secure
- }
-}
-
-$_TARGETNAME configure -event gdb-flash-erase-start {
- set use_secure_workarea 0
- # check if FLASH_OPTR.TZEN is enabled
- set FLASH_OPTR [mrw 0x40022040]
- if {[expr {$FLASH_OPTR & 0x80000000}] == 0} {
- echo "TZEN option bit disabled"
- ahb_ap_non_secure_access
- } {
- ahb_ap_secure_access
- echo "TZEN option bit enabled"
-
- # check if FLASH_OPTR.RDP is not Level 0.5
- if {[expr {$FLASH_OPTR & 0xFF}] != 0x55} {
- set use_secure_workarea 1
- }
- }
-
- set workarea_addr [$_TARGETNAME cget -work-area-phys]
- echo "workarea_addr $workarea_addr"
-
- if {$use_secure_workarea} {
- set workarea_addr [expr {$workarea_addr | 0x10000000}]
- } {
- set workarea_addr [expr {$workarea_addr & ~0x10000000}]
- }
-
- $_TARGETNAME configure -work-area-phys $workarea_addr
-}
-
-$_TARGETNAME configure -event trace-config {
- # Set TRACE_IOEN; TRACE_MODE is set to async; when using sync
- # change this value accordingly to configure trace pins
- # assignment
- mmw 0xE0044004 0x00000020 0
-}
projects / fw / openocd / blobdiff