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bootloaders/riotboot: don't change CPU/pin state #21097

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bootloaders/riotboot: don't change CPU/pin state #21097

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4ceb3a2
bootloaders/riotboot: don't change CPU/pin state
benpicco Dec 19, 2024
e7205d3
cpu/cortexm_common: add option to skip hardware init
benpicco Dec 19, 2024
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4 changes: 4 additions & 0 deletions bootloaders/riotboot/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -4,4 +4,8 @@ APPLICATION = riotboot
# Include riotboot flash partition functionality
USEMODULE += riotboot_slot

# We don't want to re-configure any hardware
CFLAGS += -DDISABLE_BOARD_INIT
CFLAGS += -DDISABLE_CPU_INIT

include ../riotboot_common.mk
7 changes: 5 additions & 2 deletions cpu/cortexm_common/vectors_cortexm.c
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Expand Up @@ -78,7 +78,7 @@
/**
* @brief Allocation of the interrupt stack
*/
__attribute__((used,section(".isr_stack"))) uint8_t isr_stack[ISR_STACKSIZE];

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comma should be followed by whitespace

/**
* @brief Pre-start routine for CPU-specific settings
Expand Down Expand Up @@ -197,12 +197,15 @@
dbgpin_init();
#endif

#ifndef DISABLE_CPU_INIT
/* initialize the CPU */
extern void cpu_init(void);
cpu_init();

/* initialize the board (which also initiates CPU initialization) */
#endif
#ifndef DISABLE_BOARD_INIT
/* initialize the board */
board_init();
#endif

#if MODULE_NEWLIB || MODULE_PICOLIBC
/* initialize std-c library (this must be done after board_init) */
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