ricardgb opened a new pull request, #19249:
URL: https://github.com/apache/nuttx/pull/19249
> ⚠️ **Disclosure:** this board port and the RP2350 PIO-gSPI CYW43439 driver
were developed with **Claude Code** (an AI coding agent) and validated on real
Pico 2 W hardware. Please review accordingly.
## Summary
Adds a board port for the **Raspberry Pi Pico 2 W** (RP2350 + Infineon
CYW43439), the Wi-Fi variant of the Pico 2. It reuses the existing
`raspberrypi-pico-2` port and adds support for the onboard CYW43439 Wi-Fi
device.
The CYW43439 is driven through a new **RP2350 PIO-based gSPI transport**
(`arch/arm/src/rp23xx/rp23xx_cyw43439.c`) that plugs into NuttX's existing
`bcm43xxx`/`bcmf` FullMAC driver — the same driver the RP2040
`raspberrypi-pico-w` uses. The WL pins (WL_REG_ON=GPIO23, WL_DATA=GPIO24,
WL_CS=GPIO25, WL_CLK=GPIO29) match the official pico-sdk `pico2_w.h`.
A `telnet` defconfig associates to an AP over WPA2 (`NETINIT_WAPI`), obtains
a DHCP lease, and exposes an NSH shell over TCP/telnet.
The CYW43439 firmware blob is **not** included — it is proprietary and
fetched from pico-sdk / the cyw43-driver exactly as the RP2040 Pico W port
does; `CONFIG_CYW43439_FIRMWARE_BIN_PATH` points at it and it is embedded at
build time.
## Impact
- New: `boards/arm/rp23xx/raspberrypi-pico-2-w/` and
`arch/arm/src/rp23xx/rp23xx_cyw43439.{c,h}`.
- No existing board/arch behaviour changes: the
`arch/arm/src/rp23xx/{Make.defs,CMakeLists.txt}` additions compile the new
driver only under `CONFIG_IEEE80211_INFINEON_CYW43439`; `boards/Kconfig` gains
the new board registration.
## Testing
- **Build:** `./tools/configure.sh raspberrypi-pico-2-w:telnet && make`
(arm-none-eabi-gcc) links to `nuttx.uf2`; `nxstyle` clean on all new files.
- **Hardware:** flashed to a real Pico 2 W. The CYW43439 came up over
PIO-gSPI (no clock tuning needed), associated to a WPA2 AP, obtained a DHCP
lease, and served an NSH shell over telnet:
```
NuttX ... arm raspberrypi-pico-2-w
wlan0 Link encap:Ethernet HWaddr 88:a2:9e:.. RUNNING
inet addr:192.168.0.43 Mask:255.255.255.0
```
🤖 Generated with [Claude Code](https://claude.com/claude-code)
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