Call enable_interrupts when initialising IRQs (#2491)

will-v-pi · kilograham · web-flow · commit 6860f0d88212 · 2025-05-30T08:33:04.000-05:00
* Call enable_interrupts when initialising IRQs Fixes raspberrypi/pico-examples#584, supercedes raspberrypi/pico-examples#588 * move enable_interrupts to the end though it doesn't make much difference * guard enable_interrupts by !RP2040 as it isn't needed there --------- Co-authored-by: Graham Sanderson <graham.sanderson@raspberrypi.com>
diff --git a/src/rp2_common/hardware_irq/irq.c b/src/rp2_common/hardware_irq/irq.c
@@ -680,6 +680,10 @@ __weak void runtime_init_per_core_irq_priorities(void) {
     }
 #endif
 #endif
+#if !PICO_RP2040
+    // enable interrupts that might be disabled by a previous bootloader stage (guarded for RP2040 as there is no bootrom chain_image call there)
+    enable_interrupts();
+#endif
 }
 
 static uint get_user_irq_claim_index(uint irq_num) {

Original file line number	Diff line number	Diff line change
`@@ -680,6 +680,10 @@ __weak void runtime_init_per_core_irq_priorities(void) {`
`680`	`680`	`}`
`681`	`681`	`#endif`
`682`	`682`	`#endif`
	`683`	`+#if !PICO_RP2040`
	`684`	`+ // enable interrupts that might be disabled by a previous bootloader stage (guarded for RP2040 as there is no bootrom chain_image call there)`
	`685`	`+ enable_interrupts();`
	`686`	`+#endif`
`683`	`687`	`}`
`684`	`688`
`685`	`689`	`static uint get_user_irq_claim_index(uint irq_num) {`