From 0153494eecb890f0e1ec97c19ab944b1ca7ae523 Mon Sep 17 00:00:00 2001
From: Tan Yan Quan <tanyanquan@espressif.com>
Date: Thu, 23 Oct 2025 11:56:34 +0800
Subject: [PATCH] feat(openthread): add kconfig option for timing optimization

---
 components/openthread/Kconfig                 |  8 ++++++++
 components/openthread/linker.lf               | 10 ++++++----
 examples/openthread/ot_rcp/sdkconfig.defaults |  2 ++
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/components/openthread/Kconfig b/components/openthread/Kconfig
index 99ed9fd364..b113cfd1f4 100644
--- a/components/openthread/Kconfig
+++ b/components/openthread/Kconfig
@@ -307,10 +307,17 @@ menu "OpenThread"
                     Set the DNS server IPv4 address.
         endmenu
 
+        config OPENTHREAD_TIMING_OPTIMIZATION
+            bool "Enable timing optimization"
+            default n
+            help
+                Select this option to enable timing optimization for link metrics / CSL features.
+
         config OPENTHREAD_LINK_METRICS
             bool "Enable link metrics feature"
             default n
             select IEEE802154_TIMING_OPTIMIZATION if IEEE802154_ENABLED
+            select OPENTHREAD_TIMING_OPTIMIZATION
             help
                 Select this option to enable link metrics feature
 
@@ -331,6 +338,7 @@ menu "OpenThread"
             bool "Enable CSL feature"
             default n
             select IEEE802154_TIMING_OPTIMIZATION if IEEE802154_ENABLED
+            select OPENTHREAD_TIMING_OPTIMIZATION
             help
                 Select this option to enable CSL feature
         menu "CSL Configurations"
diff --git a/components/openthread/linker.lf b/components/openthread/linker.lf
index ffadcdff91..58c830c8e7 100644
--- a/components/openthread/linker.lf
+++ b/components/openthread/linker.lf
@@ -1,15 +1,17 @@
 [mapping:openthread]
 archive: libopenthread.a
 entries:
-  if OPENTHREAD_CSL_ENABLE = y || OPENTHREAD_LINK_METRICS = y:
-    csl_tx_scheduler (noflash)
+  if OPENTHREAD_TIMING_OPTIMIZATION = y:
     link_metrics (noflash)
     link_quality (noflash)
-    mac (noflash)
     mac_frame (noflash)
-    mesh_forwarder (noflash)
     radio (noflash)
     sub_mac (noflash)
 
+  if OPENTHREAD_TIMING_OPTIMIZATION = y && OPENTHREAD_RADIO = n:
+    mesh_forwarder (noflash)
+    csl_tx_scheduler (noflash)
+    mac (noflash)
+
   if OPENTHREAD_RCP_SPI = y:
     ncp_spi (noflash)
diff --git a/examples/openthread/ot_rcp/sdkconfig.defaults b/examples/openthread/ot_rcp/sdkconfig.defaults
index 7a4583d972..0419e6a33c 100644
--- a/examples/openthread/ot_rcp/sdkconfig.defaults
+++ b/examples/openthread/ot_rcp/sdkconfig.defaults
@@ -50,3 +50,5 @@ CONFIG_LOG_DEFAULT_LEVEL_NONE=y
 CONFIG_LIBC_NEWLIB_NANO_FORMAT=y
 CONFIG_OPENTHREAD_LOG_LEVEL_DYNAMIC=n
 CONFIG_OPENTHREAD_LOG_LEVEL_NONE=y
+CONFIG_OPENTHREAD_TIMING_OPTIMIZATION=y
+CONFIG_FREERTOS_HZ=1000