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Wire the shared Ameba GPIO driver into the RTL8721F (amebagreen2) build and
add the EVB board glue:
- arch/arm/src/rtl8721f: build ameba_gpio.c (CMake/Make.defs), source the
common Ameba Kconfig, and add ameba_gpio_chip.h describing the chip's
three GPIO ports (A/B/C), their IRQs and the APBPeriph clock bit.
- arch/arm/src/common/ameba: teach the driver that amebagreen2's ROM
GPIO_Init does not call PAD_PullCtrl or GPIO_INTMode, so call both
explicitly after GPIO_Init; on RTL8721Dx (ram_common) these are harmless
redundant writes. Add the AMEBA_PORT_C / AMEBA_PC() helpers.
- boards/arm/rtl8721f/rtl8721f_evb: register output/input/interrupt demo
pins, add the bringup hook, and provide a minimal 'gpio' NSH defconfig.
- Documentation: add a GPIO section for the RTL8721F EVB and fix a
rising/falling typo in the PKE8721DAF page.
Hardware-verified on the RTL8721F EVB: output, input, and all interrupt
trigger/polarity combinations (rising/falling edge, level high/low).
Signed-off-by: dechao_gong <dechao_gong@realsil.com.cn>
Assisted-by: Claude <noreply@anthropic.com>
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| CMakeLists.txt | ||
| Kconfig | ||