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[bk72xx] Apply CFG_SUPPORT_BLE=0 SDK option to BK7238 (#16181)

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This commit is contained in:
J. Nick Koston
2026-04-30 19:12:06 -05:00
committed by GitHub
parent e085cb50d9
commit 2f3e16b482
2 changed files with 13 additions and 8 deletions
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esphome/components/beken_spi_led_strip/light.py
+1
View File
@@ -62,6 +62,7 @@ CONF_IS_WRGB = "is_wrgb"
SUPPORTED_PINS = {
libretiny.const.FAMILY_BK7231N: [16],
libretiny.const.FAMILY_BK7231T: [16],
libretiny.const.FAMILY_BK7238: [16],
libretiny.const.FAMILY_BK7251: [16],
}
esphome/components/libretiny/__init__.py
+12 -8
View File
@@ -37,6 +37,7 @@ from .const import (
CONF_UART_PORT,
FAMILIES,
FAMILY_BK7231N,
FAMILY_BK7238,
FAMILY_COMPONENT,
FAMILY_FRIENDLY,
FAMILY_RTL8710B,
@@ -56,19 +57,22 @@ CODEOWNERS = ["@kuba2k2"]
AUTO_LOAD = ["preferences"]
IS_TARGET_PLATFORM = True
# BK7231N SDK options to disable unused features.
# BLE 5.x BK SDK options to disable unused features.
# Disabling BLE saves ~21KB RAM and ~200KB Flash because BLE init code is
# called unconditionally by the SDK. ESPHome doesn't use BLE on LibreTiny.
#
# This only works on BK7231N (BLE 5.x). Other BK72XX chips using BLE 4.2
# (BK7231T, BK7231Q, BK7251; BK7252 boards use the BK7251 family) have a bug
# where the BLE library still links and references undefined symbols when
# CFG_SUPPORT_BLE=0.
# This only works on BLE 5.x BK chips (BK7231N, BK7238). Other BK72XX chips
# using BLE 4.2 (BK7231T, BK7231Q, BK7251; BK7252 boards use the BK7251 family)
# have a bug where the BLE library still links and references undefined symbols
# when CFG_SUPPORT_BLE=0.
#
# On BK7238 the SDK also hangs at WiFi STA enable when BLE init runs, so
# disabling it is required for reliable boot, not just an optimization.
#
# Other options like CFG_TX_EVM_TEST, CFG_RX_SENSITIVITY_TEST, CFG_SUPPORT_BKREG,
# CFG_SUPPORT_OTA_HTTP, and CFG_USE_SPI_SLAVE were evaluated but provide no # NOLINT
# measurable benefit - the linker already strips unreferenced code via -gc-sections.
_BK7231N_SYS_CONFIG_OPTIONS = [
_BLE5_BK_SYS_CONFIG_OPTIONS = [
"CFG_SUPPORT_BLE=0",
]
@@ -549,9 +553,9 @@ async def component_to_code(config):
cg.add_platformio_option("custom_fw_version", __version__)
# Apply chip-specific SDK options to save RAM/Flash
if config[CONF_FAMILY] == FAMILY_BK7231N:
if config[CONF_FAMILY] in (FAMILY_BK7231N, FAMILY_BK7238):
cg.add_platformio_option(
"custom_options.sys_config#h", _BK7231N_SYS_CONFIG_OPTIONS
"custom_options.sys_config#h", _BLE5_BK_SYS_CONFIG_OPTIONS
)
# Tune lwIP for ESPHome's actual needs.