From c3ec1940b52e5d3f47c5c96bea2430b4444d83ea Mon Sep 17 00:00:00 2001 From: Karl Palsson Date: Fri, 21 Nov 2014 22:14:57 +0000 Subject: [PATCH] stm32l: split l0/l1 support no jtag, different HSI settings L0 is cortex m0+, so different id codes, SWD only, different addresses for the clock speedup. It has no endian options, no boundary scan. Removed all L0 specific portions from L1 files, and renamed files to clarify their purpose. The deprecated stm32lx_stlink.cfg is kept as is, as it is only around for backwards compatibility with prior releases. Tested on STM32L053 Discovery and STM32L151 Discovery. Has _not_ been tested with jtag on L1. Change-Id: I8eea890d2f92a302d9e9c8a8832d218ee1b6bcfc Signed-off-by: Karl Palsson Signed-off-by: Paul Fertser Reviewed-on: http://openocd.zylin.com/2405 Tested-by: jenkins Reviewed-by: Spencer Oliver Reviewed-by: Juha Niskanen --- tcl/board/stm32l0discovery.cfg | 2 +- tcl/board/stm32ldiscovery.cfg | 2 +- tcl/target/stm32l0.cfg | 73 +++++++++++++++++++ tcl/target/{stm32l.cfg => stm32l1.cfg} | 25 +++---- ...x_dual_bank.cfg => stm32l1x_dual_bank.cfg} | 4 +- tcl/target/stm32lx_stlink.cfg | 4 +- 6 files changed, 89 insertions(+), 21 deletions(-) create mode 100644 tcl/target/stm32l0.cfg rename tcl/target/{stm32l.cfg => stm32l1.cfg} (85%) rename tcl/target/{stm32lx_dual_bank.cfg => stm32l1x_dual_bank.cfg} (69%) diff --git a/tcl/board/stm32l0discovery.cfg b/tcl/board/stm32l0discovery.cfg index e1be9a885..57b8a6002 100644 --- a/tcl/board/stm32l0discovery.cfg +++ b/tcl/board/stm32l0discovery.cfg @@ -6,7 +6,7 @@ source [find interface/stlink-v2-1.cfg] transport select hla_swd set WORKAREASIZE 0x2000 -source [find target/stm32l.cfg] +source [find target/stm32l0.cfg] # use hardware reset, connect under reset reset_config srst_only srst_nogate diff --git a/tcl/board/stm32ldiscovery.cfg b/tcl/board/stm32ldiscovery.cfg index fd8c974e4..b31a663a4 100644 --- a/tcl/board/stm32ldiscovery.cfg +++ b/tcl/board/stm32ldiscovery.cfg @@ -6,7 +6,7 @@ source [find interface/stlink-v2.cfg] transport select hla_swd set WORKAREASIZE 0x4000 -source [find target/stm32l.cfg] +source [find target/stm32l1.cfg] # use hardware reset, connect under reset reset_config srst_only srst_nogate diff --git a/tcl/target/stm32l0.cfg b/tcl/target/stm32l0.cfg new file mode 100644 index 000000000..fc2751e95 --- /dev/null +++ b/tcl/target/stm32l0.cfg @@ -0,0 +1,73 @@ +# +# M0+ devices only have SW-DP, but swj-dp code works, just don't +# set any jtag related features +# + +source [find target/swj-dp.tcl] + +if { [info exists CHIPNAME] } { + set _CHIPNAME $CHIPNAME +} else { + set _CHIPNAME stm32l0 +} + +# Work-area is a space in RAM used for flash programming +# By default use 8kB (max ram on smallest part) +if { [info exists WORKAREASIZE] } { + set _WORKAREASIZE $WORKAREASIZE +} else { + set _WORKAREASIZE 0x2000 +} + +# JTAG speed should be <= F_CPU/6. +# F_CPU after reset is ~2MHz, so use F_JTAG max = 333kHz +adapter_khz 300 + +adapter_nsrst_delay 100 + +if { [info exists CPUTAPID] } { + set _CPUTAPID $CPUTAPID +} else { + # Arm, m0+, non-multidrop. + # http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.faqs/ka16088.html + set _CPUTAPID 0x0bc11477 +} + +swj_newdap $_CHIPNAME cpu -expected-id $_CPUTAPID + +set _TARGETNAME $_CHIPNAME.cpu +target create $_TARGETNAME cortex_m -chain-position $_TARGETNAME + +$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0 + +# flash size will be probed +set _FLASHNAME $_CHIPNAME.flash +flash bank $_FLASHNAME stm32lx 0x08000000 0 0 0 $_TARGETNAME + +if {![using_hla]} { + # if srst is not fitted use SYSRESETREQ to + # perform a soft reset + cortex_m reset_config sysresetreq +} + +proc stm32l0_enable_HSI16 {} { + # Enable HSI16 as clock source + echo "STM32L0: Enabling HSI16" + + # Set HSI16ON in RCC_CR (leave MSI enabled) + mww 0x40021000 0x00000101 + + # Set HSI16 as SYSCLK (RCC_CFGR) + mww 0x4002100c 0x00000001 + + # Increase speed + adapter_khz 2500 +} + +$_TARGETNAME configure -event reset-init { + stm32l0_enable_HSI16 +} + +$_TARGETNAME configure -event reset-start { + adapter_khz 300 +} diff --git a/tcl/target/stm32l.cfg b/tcl/target/stm32l1.cfg similarity index 85% rename from tcl/target/stm32l.cfg rename to tcl/target/stm32l1.cfg index 8f6d90550..8b83d3f36 100644 --- a/tcl/target/stm32l.cfg +++ b/tcl/target/stm32l1.cfg @@ -1,8 +1,7 @@ -# script for stm32l +# +# stm32l1 devices support both JTAG and SWD transports. +# -# -# stm32 devices support both JTAG and SWD transports. -# source [find target/swj-dp.tcl] if { [info exists CHIPNAME] } { @@ -42,17 +41,13 @@ if { [info exists CPUTAPID] } { # See STM Document RM0038 # Section 30.6.3 - corresponds to Cortex-M3 r2p0 set _CPUTAPID 0x4ba00477 - } { - set _CPUTAPID1 0x2ba01477 - set _CPUTAPID2 0x0bc11477 + } else { + # SWD IDCODE (single drop, arm) + set _CPUTAPID 0x2ba01477 } } -if { [using_jtag] } { - swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID -} else { - swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID1 -expected-id $_CPUTAPID2 -} +swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID if { [info exists BSTAPID] } { # FIXME this never gets used to override defaults... @@ -93,13 +88,13 @@ if {![using_hla]} { proc stm32l_enable_HSI {} { # Enable HSI as clock source echo "STM32L: Enabling HSI" - + # Set HSION in RCC_CR mww 0x40023800 0x00000101 - + # Set HSI as SYSCLK mww 0x40023808 0x00000001 - + # Increase JTAG speed adapter_khz 2000 } diff --git a/tcl/target/stm32lx_dual_bank.cfg b/tcl/target/stm32l1x_dual_bank.cfg similarity index 69% rename from tcl/target/stm32lx_dual_bank.cfg rename to tcl/target/stm32l1x_dual_bank.cfg index 8105680f6..7420b315e 100644 --- a/tcl/target/stm32lx_dual_bank.cfg +++ b/tcl/target/stm32l1x_dual_bank.cfg @@ -1,6 +1,6 @@ -source [find target/stm32l.cfg] +source [find target/stm32l1.cfg] -# The stm32lx 384kb have a dual bank flash. +# The stm32l1x 384kb have a dual bank flash. # Let's add a definition for the second bank here. # Add the second flash bank. diff --git a/tcl/target/stm32lx_stlink.cfg b/tcl/target/stm32lx_stlink.cfg index 583534851..5f694b546 100644 --- a/tcl/target/stm32lx_stlink.cfg +++ b/tcl/target/stm32lx_stlink.cfg @@ -1,2 +1,2 @@ -echo "WARNING: target/stm32lx_stlink.cfg is deprecated, please switch to target/stm32l.cfg" -source [find target/stm32l.cfg] +echo "WARNING: target/stm32lx_stlink.cfg is deprecated, please switch to target/stm32l1.cfg" +source [find target/stm32l1.cfg]