acassis commented on code in PR #18499:
URL: https://github.com/apache/nuttx/pull/18499#discussion_r2891822623
##########
boards/arm64/bcm2711/raspberrypi-4b/Kconfig:
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@@ -60,4 +60,151 @@ config RPI4B_FRAMEBUFFER
---help---
Registers a frame buffer character driver for graphical output.
+menu "Raspberry Pi 4B Pin Configuration"
+ config RPI4B_GPIO0
+ int "GPIO 0 (0:SDA0, 1:SA5, 2:PCLK, 3:SPI3_CE0_N, 4:TXD2, 5:SDA6, 6:IN,
7:OUT)"
+ range 0 7
+ default 0
+ ---help---
+ Reserved for I2C to Raspberry Pi HAT EEPROM. Disable EEPROM
forced read and FAN I/O to use it otherwise.
+
+ config RPI4B_GPIO1
+ int "GPIO 1 (0:SCL0, 1:SA4, 2:DE, 3:SPI3_MISO, 4:RXD2, 5:SCL6, 6:IN,
7:OUT)"
+ range 0 7
+ default 0
+ ---help---
+ Reserved for I2C to Raspberry Pi HAT EEPROM. Disable EEPROM
forced read and FAN I/O to use it otherwise.
+
+ config RPI4B_GPIO2
Review Comment:
@resyfer I think it is not a good idea to defined all GPIOs in the Kconfig,
because it will be difficult to track all ALT mode and usages. I think it is
better to use GPIO pins definition in the board source code, like in those
STM32 boards
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