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stm32l0|l1: don't corrupt RCC registers

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instead of overwriting Reset settings, let's
read-modify-write RCC registers.

Change-Id: I21b7e26e6007d3c3d73803c681c980c6947f5910
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Reviewed-on: http://openocd.zylin.com/3601
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This commit is contained in:
Felipe Balbi
2016-07-14 16:32:10 +03:00
committed by Andreas Fritiofson
parent f545044c2a
commit 3e7cfc6709
2 changed files with 7 additions and 4 deletions
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4
tcl/target/stm32l1.cfg
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@@ -73,10 +73,10 @@ proc stm32l_enable_HSI {} {
echo "STM32L: Enabling HSI"
# Set HSION in RCC_CR
mww 0x40023800 0x00000101
mmw 0x40023800 0x00000101 0
# Set HSI as SYSCLK
mww 0x40023808 0x00000001
mmw 0x40023808 0x00000001 0
# Increase JTAG speed
adapter_khz 2000