arch: unify stm32 hardware definition names#19114
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BREAKING CHANGE: STM32F7 non-standard hardware definition macros (IRQ, peripheral-count, SRAM and related) were renamed to the common STM32_* prefix. Out-of-tree code must update the affected references. Signed-off-by: raiden00pl <raiden00@railab.me>
BREAKING CHANGE: STM32H5 non-standard hardware definition macros (IRQ, peripheral-count, SRAM and related) were renamed to the common STM32_* prefix. Out-of-tree code must update the affected references. Signed-off-by: raiden00pl <raiden00@railab.me>
BREAKING CHANGE: STM32H7 non-standard hardware definition macros (IRQ, peripheral-count, SRAM and related) were renamed to the common STM32_* prefix. Out-of-tree code must update the affected references. Signed-off-by: raiden00pl <raiden00@railab.me>
BREAKING CHANGE: STM32L4 non-standard hardware definition macros (IRQ, peripheral-count, SRAM and related) were renamed to the common STM32_* prefix. Out-of-tree code must update the affected references. Signed-off-by: raiden00pl <raiden00@railab.me>
BREAKING CHANGE: STM32L5 non-standard hardware definition macros (IRQ, peripheral-count, SRAM and related) were renamed to the common STM32_* prefix. Out-of-tree code must update the affected references. Signed-off-by: raiden00pl <raiden00@railab.me>
BREAKING CHANGE: STM32U5 non-standard hardware definition macros (IRQ, peripheral-count, SRAM and related) were renamed to the common STM32_* prefix. Out-of-tree code must update the affected references. Signed-off-by: raiden00pl <raiden00@railab.me>
BREAKING CHANGE: STM32WB non-standard hardware definition macros (IRQ, peripheral-count, SRAM and related) were renamed to the common STM32_* prefix. Out-of-tree code must update the affected references. Signed-off-by: raiden00pl <raiden00@railab.me>
BREAKING CHANGE: STM32WL5 non-standard hardware definition macros (IRQ, peripheral-count, SRAM and related) were renamed to the common STM32_* prefix. Out-of-tree code must update the affected references. Signed-off-by: raiden00pl <raiden00@railab.me>
BREAKING CHANGE: STM32N6 non-standard hardware definition macros (IRQ, peripheral-count, SRAM and related) were renamed to the common STM32_* prefix. Out-of-tree code must update the affected references. Signed-off-by: raiden00pl <raiden00@railab.me>
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Jun 10, 2026
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Summary
Unify stm32 hardware definition names
Until now, some STM32 definitions had a family prefix (
STM32H7_*, etc.), while others did not. It wasn't even the same within one family. This leads to confusion about whether to use the family name or not. Furthermore, code generalization and driver comparisons with different prefixes are impossible. From now on, all families simply useSTM32_*and this rule will be included in the STM32 porting guideBREAKING CHANGE: STM32 L4, L5, F7, H5, H7, U5, WB, WL5, N6
non-standard hardware definition macros (IRQ, peripheral-count, SRAM
and related) were renamed to the common, standardized
STM32_*prefix.Impact
Out-of-tree code that use hardware definitions for affected families must update used definitions:
STM32L4_ -> STM32_
STM32L5_ -> STM32_
STM32F7_ -> STM32_
STM32H5_ -> STM32_
STM32H7_ -> STM32_
STM32U5_ -> STM32_
STM32WB_ -> STM32_
STM32WL5_ -> STM32_
STM32N6_ -> STM32_
After migrating Kconfig options to the standardized
CONFIG_STM32_*names you will be able to use a simple replace with your favorite tools (sed, IDE and friends)Testing
CI