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Documentation: Document esp32p4-function-ev-board:psram_usrheap

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This commit adds an entry for the ESP32-P4-Function-EV-Board's
`psram_usrheap` defconfig on docs.

Signed-off-by: Tiago Medicci Serrano <tiago.medicci@espressif.com>
This commit is contained in:
Tiago Medicci Serrano
2026-04-16 09:57:30 -03:00
committed by Alan C. Assis
parent 92a0b18ca1
commit 08a1953193
2 changed files with 12 additions and 0 deletions
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Documentation/platforms/risc-v/esp32p4/boards/esp32p4-function-ev-board/index.rst
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@@ -295,6 +295,17 @@ To save power without using sleep modes, lowering the clock speed is another app
``CONFIG_ESPRESSIF_DFS`` option needs to enabled and minimum CPU frequency needs to set under ``CONFIG_ESPRESSIF_MIN_CPU_FREQ`` option. ``CONFIG_ESPRESSIF_DFS`` option needs to enabled and minimum CPU frequency needs to set under ``CONFIG_ESPRESSIF_MIN_CPU_FREQ`` option.
With these options, the device scales the CPU clock according to workload. With these options, the device scales the CPU clock according to workload.
psram_usrheap
-------------
This configuration enables allocating the userspace heap into SPIRAM and reserves the
internal RAM for kernel heap. For instance, for a 32MB PSRAM::
nsh> free
total used free maxused maxfree nused nfree name
602004 6492 595512 6872 595512 36 1 Kmem
33554428 4276 33550152 4656 33550152 8 1 Umem
pwm pwm
--- ---
Documentation/platforms/risc-v/esp32p4/index.rst
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@@ -348,6 +348,7 @@ Parallel IO No
LCD Interface No LCD Interface No
MIPI DSI No MIPI DSI No
Timers Yes Timers Yes
SPIRAM / PSRAM Yes
Watchdog Yes MWDT0/1 and RWDT Watchdog Yes MWDT0/1 and RWDT
Ethernet No Ethernet No
Brownout No Brownout No