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flash/nor/stm32lx: use 0 base to autodetect second bank location 

Change-Id: I3c296b3e276fcd4d92e4180fc0d2133eebfcc240
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2503
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This commit is contained in:
Paul Fertser 2015-01-24 13:57:58 +03:00 committed by Spencer Oliver
parent 97c96ac13f
commit 873774992d
3 changed files with 8 additions and 6 deletions
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8
doc/openocd.texi
View File

@ -5551,16 +5551,18 @@ The @var{num} parameter is a value shown by @command{flash banks}.
@deffn {Flash Driver} stm32lx
All members of the STM32L microcontroller families from ST Microelectronics
include internal flash and use ARM Cortex-M3 cores.
include internal flash and use ARM Cortex-M3 and Cortex-M0+ cores.
The driver automatically recognizes a number of these chips using
the chip identification register, and autoconfigures itself.
Note that some devices have been found that have a flash size register that contains
an invalid value, to workaround this issue you can override the probed value used by
the flash driver.
the flash driver. If you use 0 as the bank base address, it tells the
driver to autodetect the bank location assuming you're configuring the
second bank.
@example
flash bank $_FLASHNAME stm32lx 0 0x20000 0 0 $_TARGETNAME
flash bank $_FLASHNAME stm32lx 0x08000000 0x20000 0 0 $_TARGETNAME
@end example
Some stm32lx-specific commands are defined:

4
src/flash/nor/stm32lx.c
View File

@ -715,12 +715,12 @@ static int stm32lx_probe(struct flash_bank *bank)
*/
second_bank_base = base_address +
stm32lx_info->part_info->first_bank_size_kb * 1024;
if (bank->base == second_bank_base) {
if (bank->base == second_bank_base || !bank->base) {
/* This is the second bank */
base_address = second_bank_base;
flash_size_in_kb = flash_size_in_kb -
stm32lx_info->part_info->first_bank_size_kb;
} else if (bank->base == 0 || bank->base == base_address) {
} else if (bank->base == base_address) {
/* This is the first bank */
flash_size_in_kb = stm32lx_info->part_info->first_bank_size_kb;
} else {

2
tcl/target/stm32l1x_dual_bank.cfg
View File

@ -5,4 +5,4 @@ source [find target/stm32l1.cfg]
# Add the second flash bank.
set _FLASHNAME $_CHIPNAME.flash1
flash bank $_FLASHNAME stm32lx 0x8030000 0 0 0 $_TARGETNAME
flash bank $_FLASHNAME stm32lx 0 0 0 0 $_TARGETNAME