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Patricio Whittingslow
37f35f8c91
machine/rp2350: add support * add linker scripts for rp2350 * add bootloader * begin melding rp2040 and rp2350 APIs * add UART * add rp2350 boot patching * Fix RP2350 memory layout (#4626) * Remove rp2040-style second stage bootloader. * Add 'minimum viable' IMAGE_DEF embedded block * Create a pico2 specific target * Implement rp2350 init, clock, and uart support * Merge rp2 reset code back together * Separate chip-specific clock definitions * Clear pad isolation bit on rp2350 * Init UART in rp2350 runtime * Correct usb/serial initialization order * Implement jump-to-bootloader * test: add pico2 to smoketests --------- Signed-off-by: deadprogram <ron@hybridgroup.com> Co-authored-by: Matthew Mets <matt.mets@cibomahto.com> Co-authored-by: Matt Mets <matt@blinkinlabs.com> Co-authored-by: deadprogram <ron@hybridgroup.com>
40 lines
1.2 KiB
Go
40 lines
1.2 KiB
Go
//go:build rp2040 || rp2350
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package machine
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// machine_rp2040_sync.go contains interrupt and
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// lock primitives similar to those found in Pico SDK's
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// irq.c
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// Clears interrupt flag on a pin
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func (p Pin) acknowledgeInterrupt(change PinChange) {
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ioBank0.intR[p>>3].Set(p.ioIntBit(change))
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}
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// Basic interrupt setting via ioBANK0 for GPIO interrupts.
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func (p Pin) setInterrupt(change PinChange, enabled bool) {
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// Separate mask/force/status per-core, so check which core called, and
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// set the relevant IRQ controls.
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switch CurrentCore() {
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case 0:
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p.ctrlSetInterrupt(change, enabled, &ioBank0.proc0IRQctrl)
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case 1:
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p.ctrlSetInterrupt(change, enabled, &ioBank0.proc1IRQctrl)
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}
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}
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// ctrlSetInterrupt acknowledges any pending interrupt and enables or disables
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// the interrupt for a given IRQ control bank (IOBANK, DormantIRQ, QSPI).
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//
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// pico-sdk calls this the _gpio_set_irq_enabled, not to be confused with
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// gpio_set_irq_enabled (no leading underscore).
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func (p Pin) ctrlSetInterrupt(change PinChange, enabled bool, base *irqCtrl) {
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p.acknowledgeInterrupt(change)
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enReg := &base.intE[p>>3]
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if enabled {
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enReg.SetBits(p.ioIntBit(change))
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} else {
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enReg.ClearBits(p.ioIntBit(change))
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}
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}
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