arch/risc-v/espressif: Add DFS feature by eren-terzioglu · Pull Request #18741 · apache/nuttx

eren-terzioglu · 2026-04-15T08:15:34Z

Summary

boards/risc-v/espressif: Add DFS board support

Add DFS board support for risc-v based Espressif devices

arch/risc-v/espressif: Add DFS feature

Add DFS feature for riscv based Espressif devices

arch/risc-vespressif: Fix i2c slave irq callback build error

Fix i2c slave irq callback build error for risc-v based Espressif devices

Impact

Impact on user: Yes, user can use dynamic frequency scaling features to decrease power consumption

Impact on build: No

Impact on hardware: Clock frequency can be vary instead of constant with DFS feature

Impact on documentation: No

Impact on security: No

Impact on compatibility: No

Testing

These configs used with these variables enabled:

esp32c6-devkitc:pm
esp32c3-devkit:pm
esp32h2-devkitc:pm
esp32p4-function-ev-board:pm

CONFIG_ESPRESSIF_DFS
CONFIG_ESPRESSIF_MIN_CPU_FREQ_40

Building

Here is the command to build:

make distclean && ./tools/configure.sh esp32c6-devkitc:pm && kconfig-tweak -e CONFIG_ESPRESSIF_DFS && kconfig-tweak -e CONFIG_ESPRESSIF_MIN_CPU_FREQ_40 && make olddefconfig && make -j && make download ESPTOOL_PORT=/dev/ttyUSB0 ESPTOOL_BAUD=921600 ESPTOOL_BINDIR=./

Running

Device connected to a USB power meter and tested

Results

Here are the results

esp32c6-devkitm:

	picocom connected	picocom disconnected
DFS on	24 mA	15.5 mA
DFS off	31.85 mA	22.5 mA

esp32c3-devkit:

	picocom connected	picocom disconnected
DFS on	20.9 mA	12.2 mA
DFS off	28.5 mA	19.9 mA

Also peripherals tested

eren-terzioglu · 2026-04-15T08:43:20Z

Seems errors are independent from this PR

simbit18 · 2026-04-15T09:57:32Z

Hi @eren-terzioglu, please rebase

Fix i2c slave irq callback build error for risc-v based Espressif devices Signed-off-by: Eren Terzioglu <eren.terzioglu@espressif.com>

simbit18 · 2026-04-15T12:18:06Z

Hi @eren-terzioglu I think there is some problem with Kconfig

./tools/configure.sh -l esp32c6-devkitc:nsh

warning: the choice symbol ESPRESSIF_CPU_FREQ_40 (defined at arch/risc-v/src/common/espressif/Kconfig:68, arch/risc-v/src/common/espressif/Kconfig:68, arch/risc-v/src/common/espressif/Kconfig:68, arch/risc-v/src/common/espressif/Kconfig:68) is selected by the following symbols, but select/imply has no effect on choice symbols
 - ESPRESSIF_MAX_CPU_FREQ_40 (defined at arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183)
 - ESPRESSIF_MAX_CPU_FREQ_40 (defined at arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183)
 - ESPRESSIF_MAX_CPU_FREQ_40 (defined at arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183)
 - ESPRESSIF_MAX_CPU_FREQ_40 (defined at arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183)
warning: the choice symbol ESPRESSIF_CPU_FREQ_48 (defined at arch/risc-v/src/common/espressif/Kconfig:74, arch/risc-v/src/common/espressif/Kconfig:74, arch/risc-v/src/common/espressif/Kconfig:74, arch/risc-v/src/common/espressif/Kconfig:74) is selected by the following symbols, but select/imply has no effect on choice symbols
 - ESPRESSIF_MAX_CPU_FREQ_48 (defined at arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190)
 - ESPRESSIF_MAX_CPU_FREQ_48 (defined at arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190)
 - ESPRESSIF_MAX_CPU_FREQ_48 (defined at arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190)
 - ESPRESSIF_MAX_CPU_FREQ_48 (defined at arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190)
warning: the choice symbol ESPRESSIF_CPU_FREQ_64 (defined at arch/risc-v/src/common/espressif/Kconfig:80, arch/risc-v/src/common/espressif/Kconfig:80, arch/risc-v/src/common/espressif/Kconfig:80, arch/risc-v/src/common/espressif/Kconfig:80) is selected by the following symbols, but select/imply has no effect on choice symbols
 - ESPRESSIF_MAX_CPU_FREQ_64 (defined at arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197)
 - ESPRESSIF_MAX_CPU_FREQ_64 (defined at arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197)
 - ESPRESSIF_MAX_CPU_FREQ_64 (defined at arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197)
 - ESPRESSIF_MAX_CPU_FREQ_64 (defined at arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197)
warning: the choice symbol ESPRESSIF_CPU_FREQ_80 (defined at arch/risc-v/src/common/espressif/Kconfig:86, arch/risc-v/src/common/espressif/Kconfig:86, arch/risc-v/src/common/espressif/Kconfig:86, arch/risc-v/src/common/espressif/Kconfig:86) is selected by the following symbols, but select/imply has no effect on choice symbols
 - ESPRESSIF_MAX_CPU_FREQ_80 (defined at arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204)
 - ESPRESSIF_MAX_CPU_FREQ_80 (defined at arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204)
 - ESPRESSIF_MAX_CPU_FREQ_80 (defined at arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204)
 - ESPRESSIF_MAX_CPU_FREQ_80 (defined at arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204)
warning: the choice symbol ESPRESSIF_CPU_FREQ_96 (defined at arch/risc-v/src/common/espressif/Kconfig:92, arch/risc-v/src/common/espressif/Kconfig:92, arch/risc-v/src/common/espressif/Kconfig:92, arch/risc-v/src/common/espressif/Kconfig:92) is selected by the following symbols, but select/imply has no effect on choice symbols
 - ESPRESSIF_MAX_CPU_FREQ_96 (defined at arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211)
 - ESPRESSIF_MAX_CPU_FREQ_96 (defined at arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211)
 - ESPRESSIF_MAX_CPU_FREQ_96 (defined at arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211)
 - ESPRESSIF_MAX_CPU_FREQ_96 (defined at arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211)
warning: the choice symbol ESPRESSIF_CPU_FREQ_160 (defined at arch/risc-v/src/common/espressif/Kconfig:98, arch/risc-v/src/common/espressif/Kconfig:98, arch/risc-v/src/common/espressif/Kconfig:98, arch/risc-v/src/common/espressif/Kconfig:98) is selected by the following symbols, but select/imply has no effect on choice symbols
 - ESPRESSIF_MAX_CPU_FREQ_160 (defined at arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218)
 - ESPRESSIF_MAX_CPU_FREQ_160 (defined at arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218)
 - ESPRESSIF_MAX_CPU_FREQ_160 (defined at arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218)
 - ESPRESSIF_MAX_CPU_FREQ_160 (defined at arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218)
warning: the choice symbol ESPRESSIF_CPU_FREQ_360 (defined at arch/risc-v/src/common/espressif/Kconfig:104, arch/risc-v/src/common/espressif/Kconfig:104, arch/risc-v/src/common/espressif/Kconfig:104, arch/risc-v/src/common/espressif/Kconfig:104) is selected by the following symbols, but select/imply has no effect on choice symbols
 - ESPRESSIF_MAX_CPU_FREQ_360 (defined at arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225)
 - ESPRESSIF_MAX_CPU_FREQ_360 (defined at arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225)
 - ESPRESSIF_MAX_CPU_FREQ_360 (defined at arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225)
 - ESPRESSIF_MAX_CPU_FREQ_360 (defined at arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225)
warning: the choice symbol ESPRESSIF_CPU_FREQ_400 (defined at arch/risc-v/src/common/espressif/Kconfig:110, arch/risc-v/src/common/espressif/Kconfig:110, arch/risc-v/src/common/espressif/Kconfig:110, arch/risc-v/src/common/espressif/Kconfig:110) is selected by the following symbols, but select/imply has no effect on choice symbols
.....

eren-terzioglu · 2026-04-15T13:30:18Z

./tools/configure.sh -l esp32c6-devkitc:nsh

Hi @eren-terzioglu I think there is some problem with Kconfig

./tools/configure.sh -l esp32c6-devkitc:nsh

warning: the choice symbol ESPRESSIF_CPU_FREQ_40 (defined at arch/risc-v/src/common/espressif/Kconfig:68, arch/risc-v/src/common/espressif/Kconfig:68, arch/risc-v/src/common/espressif/Kconfig:68, arch/risc-v/src/common/espressif/Kconfig:68) is selected by the following symbols, but select/imply has no effect on choice symbols
 - ESPRESSIF_MAX_CPU_FREQ_40 (defined at arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183)
 - ESPRESSIF_MAX_CPU_FREQ_40 (defined at arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183)
 - ESPRESSIF_MAX_CPU_FREQ_40 (defined at arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183)
 - ESPRESSIF_MAX_CPU_FREQ_40 (defined at arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183, arch/risc-v/src/common/espressif/Kconfig:183)
warning: the choice symbol ESPRESSIF_CPU_FREQ_48 (defined at arch/risc-v/src/common/espressif/Kconfig:74, arch/risc-v/src/common/espressif/Kconfig:74, arch/risc-v/src/common/espressif/Kconfig:74, arch/risc-v/src/common/espressif/Kconfig:74) is selected by the following symbols, but select/imply has no effect on choice symbols
 - ESPRESSIF_MAX_CPU_FREQ_48 (defined at arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190)
 - ESPRESSIF_MAX_CPU_FREQ_48 (defined at arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190)
 - ESPRESSIF_MAX_CPU_FREQ_48 (defined at arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190)
 - ESPRESSIF_MAX_CPU_FREQ_48 (defined at arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190, arch/risc-v/src/common/espressif/Kconfig:190)
warning: the choice symbol ESPRESSIF_CPU_FREQ_64 (defined at arch/risc-v/src/common/espressif/Kconfig:80, arch/risc-v/src/common/espressif/Kconfig:80, arch/risc-v/src/common/espressif/Kconfig:80, arch/risc-v/src/common/espressif/Kconfig:80) is selected by the following symbols, but select/imply has no effect on choice symbols
 - ESPRESSIF_MAX_CPU_FREQ_64 (defined at arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197)
 - ESPRESSIF_MAX_CPU_FREQ_64 (defined at arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197)
 - ESPRESSIF_MAX_CPU_FREQ_64 (defined at arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197)
 - ESPRESSIF_MAX_CPU_FREQ_64 (defined at arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197, arch/risc-v/src/common/espressif/Kconfig:197)
warning: the choice symbol ESPRESSIF_CPU_FREQ_80 (defined at arch/risc-v/src/common/espressif/Kconfig:86, arch/risc-v/src/common/espressif/Kconfig:86, arch/risc-v/src/common/espressif/Kconfig:86, arch/risc-v/src/common/espressif/Kconfig:86) is selected by the following symbols, but select/imply has no effect on choice symbols
 - ESPRESSIF_MAX_CPU_FREQ_80 (defined at arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204)
 - ESPRESSIF_MAX_CPU_FREQ_80 (defined at arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204)
 - ESPRESSIF_MAX_CPU_FREQ_80 (defined at arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204)
 - ESPRESSIF_MAX_CPU_FREQ_80 (defined at arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204, arch/risc-v/src/common/espressif/Kconfig:204)
warning: the choice symbol ESPRESSIF_CPU_FREQ_96 (defined at arch/risc-v/src/common/espressif/Kconfig:92, arch/risc-v/src/common/espressif/Kconfig:92, arch/risc-v/src/common/espressif/Kconfig:92, arch/risc-v/src/common/espressif/Kconfig:92) is selected by the following symbols, but select/imply has no effect on choice symbols
 - ESPRESSIF_MAX_CPU_FREQ_96 (defined at arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211)
 - ESPRESSIF_MAX_CPU_FREQ_96 (defined at arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211)
 - ESPRESSIF_MAX_CPU_FREQ_96 (defined at arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211)
 - ESPRESSIF_MAX_CPU_FREQ_96 (defined at arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211, arch/risc-v/src/common/espressif/Kconfig:211)
warning: the choice symbol ESPRESSIF_CPU_FREQ_160 (defined at arch/risc-v/src/common/espressif/Kconfig:98, arch/risc-v/src/common/espressif/Kconfig:98, arch/risc-v/src/common/espressif/Kconfig:98, arch/risc-v/src/common/espressif/Kconfig:98) is selected by the following symbols, but select/imply has no effect on choice symbols
 - ESPRESSIF_MAX_CPU_FREQ_160 (defined at arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218)
 - ESPRESSIF_MAX_CPU_FREQ_160 (defined at arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218)
 - ESPRESSIF_MAX_CPU_FREQ_160 (defined at arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218)
 - ESPRESSIF_MAX_CPU_FREQ_160 (defined at arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218, arch/risc-v/src/common/espressif/Kconfig:218)
warning: the choice symbol ESPRESSIF_CPU_FREQ_360 (defined at arch/risc-v/src/common/espressif/Kconfig:104, arch/risc-v/src/common/espressif/Kconfig:104, arch/risc-v/src/common/espressif/Kconfig:104, arch/risc-v/src/common/espressif/Kconfig:104) is selected by the following symbols, but select/imply has no effect on choice symbols
 - ESPRESSIF_MAX_CPU_FREQ_360 (defined at arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225)
 - ESPRESSIF_MAX_CPU_FREQ_360 (defined at arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225)
 - ESPRESSIF_MAX_CPU_FREQ_360 (defined at arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225)
 - ESPRESSIF_MAX_CPU_FREQ_360 (defined at arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225, arch/risc-v/src/common/espressif/Kconfig:225)
warning: the choice symbol ESPRESSIF_CPU_FREQ_400 (defined at arch/risc-v/src/common/espressif/Kconfig:110, arch/risc-v/src/common/espressif/Kconfig:110, arch/risc-v/src/common/espressif/Kconfig:110, arch/risc-v/src/common/espressif/Kconfig:110) is selected by the following symbols, but select/imply has no effect on choice symbols
.....

Hi @simbit18,
I tried to replicate with using ./tools/configure.sh -l esp32c6-devkitc:nsh command but did not happen on me. Did you rebase?

simbit18 · 2026-04-15T13:39:50Z

Hi @eren-terzioglu ,

Here's the log for Make and CMake with your repository ( both have the same problem)

Nuttx repository: eren-terzioglu/nuttx
    Nuttx branch: feature/esp_dfs
 Apps repository: apache/nuttx-apps
     Apps branch: master
          Config: esp32c6-devkitc:nsh
    Build system: all

https://github.com/simbit18/manual-nuttx-ci/actions/runs/24453591810

@eren-terzioglu you can try it yourself

#18568

Workflow -> Manually Compiling with Make or Cmake for test
#18568 (comment)

eren-terzioglu · 2026-04-15T13:41:25Z

Hi @eren-terzioglu ,

Here's the log for Make and CMake with your repository ( both have the same problem)
Nuttx repository: eren-terzioglu/nuttx
    Nuttx branch: feature/esp_dfs
 Apps repository: apache/nuttx-apps
     Apps branch: master
          Config: esp32c6-devkitc:nsh
    Build system: all
https://github.com/simbit18/manual-nuttx-ci/actions/runs/24453591810

@eren-terzioglu you can try it yourself

#18568

Workflow -> Manually Compiling with Make or Cmake for test #18568 (comment)

Let me check it, thanks

Add DFS feature for riscv based Espressif devices Signed-off-by: Eren Terzioglu <eren.terzioglu@espressif.com>

Add DFS board support for risc-v based Espressif devices Signed-off-by: Eren Terzioglu <eren.terzioglu@espressif.com>

Add DFS docs for risc-v based Espressif devices Signed-off-by: Eren Terzioglu <eren.terzioglu@espressif.com>

eren-terzioglu · 2026-04-15T14:12:33Z

@simbit18, seems it is fine

eren-terzioglu requested review from fdcavalcanti, jerpelea and tmedicci as code owners April 15, 2026 08:15

github-actions Bot added Area: Documentation Improvements or additions to documentation Arch: risc-v Issues related to the RISC-V (32-bit or 64-bit) architecture Size: L The size of the change in this PR is large Board: risc-v labels Apr 15, 2026

eren-terzioglu force-pushed the feature/esp_dfs branch from b6ddd65 to 600d74b Compare April 15, 2026 10:00

simbit18 requested review from acassis, linguini1 and xiaoxiang781216 April 15, 2026 10:00

arch/risc-vespressif: Fix i2c slave irq callback build error

1b35f2a

Fix i2c slave irq callback build error for risc-v based Espressif devices Signed-off-by: Eren Terzioglu <eren.terzioglu@espressif.com>

fdcavalcanti previously approved these changes Apr 15, 2026

View reviewed changes

eren-terzioglu added 3 commits April 15, 2026 16:04

arch/risc-v/espressif: Add DFS feature

52a9bc6

Add DFS feature for riscv based Espressif devices Signed-off-by: Eren Terzioglu <eren.terzioglu@espressif.com>

boards/risc-v/espressif: Add DFS board support

379859d

Add DFS board support for risc-v based Espressif devices Signed-off-by: Eren Terzioglu <eren.terzioglu@espressif.com>

Docs/platforms/risc-v: Add DFS docs for esp32[-c3|-c6|-h2|-p4]

738a2ea

Add DFS docs for risc-v based Espressif devices Signed-off-by: Eren Terzioglu <eren.terzioglu@espressif.com>

eren-terzioglu dismissed fdcavalcanti’s stale review via 738a2ea April 15, 2026 14:05

eren-terzioglu force-pushed the feature/esp_dfs branch from 600d74b to 738a2ea Compare April 15, 2026 14:05

simbit18 approved these changes Apr 15, 2026

View reviewed changes

xiaoxiang781216 approved these changes Apr 15, 2026

View reviewed changes

simbit18 merged commit d887225 into apache:master Apr 15, 2026
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arch/risc-v/espressif: Add DFS feature#18741

arch/risc-v/espressif: Add DFS feature#18741
simbit18 merged 4 commits intoapache:masterfrom
eren-terzioglu:feature/esp_dfs

eren-terzioglu commented Apr 15, 2026

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