Add RP2350 support (#4459)

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 <[email protected]>
Co-authored-by: Matthew Mets <[email protected]>
Co-authored-by: Matt Mets <[email protected]>
Co-authored-by: deadprogram <[email protected]>

1 files changed, 0 insertions, 21 deletions

diff --git a/src/machine/machine_rp2040_i2c.go b/src/machine/machine_rp2040_i2c.go
index b7dc63d2b..f34aa259f 100644
--- a/src/machine/machine_rp2040_i2c.go
+++ b/src/machine/machine_rp2040_i2c.go
@@ -631,24 +631,3 @@ func (b i2cAbortError) Reasons() (reasons []string) {
 	}
 	return reasons
 }
-
-//go:inline
-func boolToBit(a bool) uint32 {
-	if a {
-		return 1
-	}
-	return 0
-}
-
-//go:inline
-func u32max(a, b uint32) uint32 {
-	if a > b {
-		return a
-	}
-	return b
-}
-
-//go:inline
-func isReservedI2CAddr(addr uint8) bool {
-	return (addr&0x78) == 0 || (addr&0x78) == 0x78
-}