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wifi: esp32: allow wifi symbols into flash

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When BT and WiFi coexists, IRAM usage increases a lot.
Add configuration that allow wifi symbols
to be placed in flash, freeing space in IRAM.

Signed-off-by: Sylvio Alves <sylvio.alves@espressif.com>
This commit is contained in:
Sylvio Alves 2021-04-23 13:27:25 -03:00 • committed by Carles Cufí
commit fe621f7071
2 changed files with 33 additions and 0 deletions
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16
drivers/wifi/esp32/Kconfig.esp32
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@ -225,4 +225,20 @@ config ESP32_WIFI_SW_COEXIST_ENABLE
help
Software controls WiFi/Bluetooth coexistence. Not supported yet.
config ESP32_WIFI_IRAM_OPT
bool "WiFi IRAM speed optimization"
default y
help
Select this option to place frequently called Wi-Fi library functions in IRAM.
When this option is disabled, more than 10Kbytes of IRAM memory will be saved
but Wi-Fi throughput will be reduced.
config ESP32_WIFI_RX_IRAM_OPT
bool "WiFi RX IRAM speed optimization"
default y
help
Select this option to place frequently called Wi-Fi library RX functions in IRAM.
When this option is disabled, more than 17Kbytes of IRAM memory will be saved
but Wi-Fi performance will be reduced.
endif # WIFI_ESP32