diff options
| -rw-r--r-- | ports/esp32/boards/sdkconfig.base | 9 | ||||
| -rw-r--r-- | ports/esp32/boards/sdkconfig.spiram | 6 | ||||
| -rw-r--r-- | ports/esp32/boards/sdkconfig.spiram_sx | 6 |
3 files changed, 19 insertions, 2 deletions
diff --git a/ports/esp32/boards/sdkconfig.base b/ports/esp32/boards/sdkconfig.base index bf6c3f45c..b98d5d067 100644 --- a/ports/esp32/boards/sdkconfig.base +++ b/ports/esp32/boards/sdkconfig.base @@ -49,6 +49,15 @@ CONFIG_LWIP_PPP_CHAP_SUPPORT=y # Use 4kiB output buffer instead of default 16kiB CONFIG_MBEDTLS_ASYMMETRIC_CONTENT_LEN=y +# Allow mbedTLS to allocate from PSRAM or internal memory +# +# (The ESP-IDF default is internal-only, partly for physical security to prevent +# possible information leakage from unencrypted PSRAM contents on the original +# ESP32 - no PSRAM encryption on that chip. MicroPython doesn't support flash +# encryption and is already storing the Python heap in PSRAM so this isn't a +# significant factor in overall physical security.) +CONFIG_MBEDTLS_DEFAULT_MEM_ALLOC=y + # ULP coprocessor support # Only on: ESP32, ESP32S2, ESP32S3 CONFIG_ULP_COPROC_ENABLED=y diff --git a/ports/esp32/boards/sdkconfig.spiram b/ports/esp32/boards/sdkconfig.spiram index 74d35f7b4..4dfc63624 100644 --- a/ports/esp32/boards/sdkconfig.spiram +++ b/ports/esp32/boards/sdkconfig.spiram @@ -3,7 +3,11 @@ CONFIG_SPIRAM=y CONFIG_SPIRAM_CACHE_WORKAROUND=y CONFIG_SPIRAM_IGNORE_NOTFOUND=y -CONFIG_SPIRAM_USE_CAPS_ALLOC=y +CONFIG_SPIRAM_USE_MALLOC=y + +# This is the threshold for preferring small allocations from internal memory +# first, before failing over to PSRAM. +CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL=8192 # SPIRAM increases the size of the firmware and overflows iram0_0_seg, due # to PSRAM bug workarounds. Apply some options to reduce the firmware size. diff --git a/ports/esp32/boards/sdkconfig.spiram_sx b/ports/esp32/boards/sdkconfig.spiram_sx index 329a50733..efe53ada4 100644 --- a/ports/esp32/boards/sdkconfig.spiram_sx +++ b/ports/esp32/boards/sdkconfig.spiram_sx @@ -7,4 +7,8 @@ CONFIG_SPIRAM_SPEED_80M=y CONFIG_SPIRAM=y CONFIG_SPIRAM_BOOT_INIT=y CONFIG_SPIRAM_IGNORE_NOTFOUND=y -CONFIG_SPIRAM_USE_CAPS_ALLOC=y +CONFIG_SPIRAM_USE_MALLOC=y + +# This is the threshold for preferring small allocations from internal memory +# first, before failing over to PSRAM. +CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL=8192 |