soc: ti_simplelink: Add capacitor tuning

See TI application note SWRA640G section 6.4. "Tuning the HF Oscillator". Signed-off-by: Jason Kridner <jkridner@beagleboard.org>
zephyrproject-rtos · Jun 6, 2023 · f001232 · f001232
1 parent 1a526a6
commit f001232
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diff --git a/soc/arm/ti_simplelink/cc13x2x7_cc26x2x7/Kconfig.soc b/soc/arm/ti_simplelink/cc13x2x7_cc26x2x7/Kconfig.soc
@@ -65,4 +65,11 @@ config CC13X2_CC26X2_BOOTLOADER_BACKDOOR_LEVEL
 	help
 	  Set the active level of the pin selected for the bootloader backdoor.
 
+config CC13X2_CC26X2_XOSC_CAPARRAY_DELTA
+	hex "Cap array tuning delta"
+	range 0 0xFF
+	default 0xFF
+	help
+	  Enable a specific cap array tunning delta.
+
 endmenu
diff --git a/soc/arm/ti_simplelink/cc13x2x7_cc26x2x7/ccfg.c b/soc/arm/ti_simplelink/cc13x2x7_cc26x2x7/ccfg.c
@@ -22,5 +22,10 @@
 #define SET_CCFG_BL_CONFIG_BL_ENABLE 0x00
 #endif /* CONFIG_CC13X2_CC26X2_BOOTLOADER_BACKDOOR_ENABLE */
 
+#ifdef CONFIG_CC13X2_CC26X2_XOSC_CAPARRAY_DELTA
+#define SET_CCFG_MODE_CONF_XOSC_CAP_MOD 0x0
+#define SET_CCFG_MODE_CONF_XOSC_CAPARRAY_DELTA CONFIG_CC13X2_CC26X2_XOSC_CAPARRAY_DELTA
+#endif
+
 /* TI recommends setting CCFG values and then including the TI provided ccfg.c */
 #include <startup_files/ccfg.c>