diff options
| author | Christopher Head <chead@zaber.com> | 2019-04-10 14:16:13 -0700 |
|---|---|---|
| committer | Freddie Chopin <freddie.chopin@gmail.com> | 2019-05-23 20:04:25 +0100 |
| commit | 39504a695f759970fea2bcd7036d382fa5eab557 (patch) | |
| tree | ec6790c60fb606ee9cae7303aaf8c43476b19f81 /tcl/target | |
| parent | 11e5f022760a8ba497f41d0625d5757c313dc038 (diff) | |
| download | riscv-openocd-39504a695f759970fea2bcd7036d382fa5eab557.zip riscv-openocd-39504a695f759970fea2bcd7036d382fa5eab557.tar.gz riscv-openocd-39504a695f759970fea2bcd7036d382fa5eab557.tar.bz2 | |
stm32f7x: Use CHIPNAME-specific name for ITCM bank
Change-Id: Icf67eaecd56ac3fb88bcfa2b7084b846109454e6
Signed-off-by: Christopher Head <chead@zaber.com>
Reviewed-on: http://openocd.zylin.com/5102
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Diffstat (limited to 'tcl/target')
| -rwxr-xr-x | tcl/target/stm32f7x.cfg | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/tcl/target/stm32f7x.cfg b/tcl/target/stm32f7x.cfg index 927a3e8..ba1d12f 100755 --- a/tcl/target/stm32f7x.cfg +++ b/tcl/target/stm32f7x.cfg @@ -51,9 +51,18 @@ set _FLASHNAME $_CHIPNAME.flash flash bank $_FLASHNAME stm32f2x 0 0 0 0 $_TARGETNAME flash bank $_CHIPNAME.otp stm32f2x 0x1ff0f000 0 0 0 $_TARGETNAME -# Configuring the Flash via ITCM alias as virtual -set _FLASH_ITCM_VMA itcm-flash.alias -flash bank $_FLASH_ITCM_VMA virtual 0x00200000 0 0 0 $_TARGETNAME $_FLASHNAME +# On the STM32F7, the Flash is mapped at address 0x08000000 via the AXI and +# also address 0x00200000 via the ITCM. The former mapping is read-write in +# hardware, while the latter is read-only. By presenting an alias, we +# accomplish two things: +# (1) We allow writing at 0x00200000 (because the alias acts identically to the +# original bank), which allows code intended to run from that address to +# also be linked for loading at that address, simplifying linking. +# (2) We allow the proper memory map to be delivered to GDB, which will cause +# it to use hardware breakpoints at the 0x00200000 mapping (correctly +# identifying it as Flash), which it would otherwise not do. Configuring +# the Flash via ITCM alias as virtual +flash bank $_CHIPNAME.itcm-flash.alias virtual 0x00200000 0 0 0 $_TARGETNAME $_FLASHNAME # adapter speed should be <= F_CPU/6. F_CPU after reset is 16MHz, so use F_JTAG = 2MHz adapter_khz 2000 |