hal: nuvoton: add NuMaker RTC controller driver

To add RTC controller into CMakeList for M46x and M2l31x. To update M46x rtc.c to fix unused variable warning. Signed-off-by: cyliang tw <cyliang@nuvoton.com>
zephyrproject-rtos · Apr 30, 2024 · ab342e6 · ab342e6
1 parent 34efb92
commit ab342e6
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Showing 4 changed files with 11 additions and 4 deletions.
diff --git a/m2l31x/Devices/M2L31/Include/system_M2L31.h b/m2l31x/Devices/M2L31/Include/system_M2L31.h
@@ -27,7 +27,7 @@ extern "C" {
 /*----------------------------------------------------------------------------
   Define clocks
  *----------------------------------------------------------------------------*/
-#define __HXT       (32000000UL)    //(12000000UL)    /*!< External Crystal Clock Frequency     */
+#define __HXT       (12000000UL)    /*!< External Crystal Clock Frequency     */
 #define __LIRC      (   32000UL)    /*!< Internal 32.0KHz RC Oscillator Frequency */
 #define __HIRC      (12000000UL)    /*!< Internal 48M RC Oscillator Frequency */
 #define __HIRC48    (48000000UL)    /*!< Internal 48M RC Oscillator Frequency */

diff --git a/m2l31x/StdDriver/CMakeLists.txt b/m2l31x/StdDriver/CMakeLists.txt
@@ -14,3 +14,4 @@ zephyr_library_sources_ifdef(CONFIG_HAS_NUMAKER_PWM src/epwm.c)
 zephyr_library_sources_ifdef(CONFIG_HAS_NUMAKER_USBD src/usbd.c)
 zephyr_library_sources_ifdef(CONFIG_HAS_NUMAKER_CANFD src/canfd.c)
 zephyr_library_sources_ifdef(CONFIG_HAS_NUMAKER_ADC src/eadc.c)
+zephyr_library_sources_ifdef(CONFIG_HAS_NUMAKER_RTC src/rtc.c)
diff --git a/m46x/StdDriver/CMakeLists.txt b/m46x/StdDriver/CMakeLists.txt
@@ -18,3 +18,4 @@ zephyr_library_sources_ifdef(CONFIG_HAS_NUMAKER_ETH drv_emac/synopGMAC_Dev.c)
 zephyr_library_sources_ifdef(CONFIG_HAS_NUMAKER_ETH drv_emac/synopGMAC_network_interface.c)
 zephyr_library_sources_ifdef(CONFIG_HAS_NUMAKER_CANFD src/canfd.c)
 zephyr_library_sources_ifdef(CONFIG_HAS_NUMAKER_ADC src/eadc.c)
+zephyr_library_sources_ifdef(CONFIG_HAS_NUMAKER_RTC src/rtc.c)
diff --git a/m46x/StdDriver/src/rtc.c b/m46x/StdDriver/src/rtc.c
@@ -1067,10 +1067,15 @@ uint32_t RTC_SetClockSource(uint32_t u32ClkSrc)
     }
     else
     {
-        /* Set the default RTC clock source is LIRC */
-        RTC->LXTCTL |= RTC_LXTCTL_RTCCKSEL_Msk;
+        /* Load LIRC32 trim setting */
+        RTC->LXTCTL = ((RTC->LXTCTL & ~(0x1FFul << 16)) | ((u32TrimDefault & 0x1FFul) << 16));
 
-        return RTC_CLOCK_SOURCE_LIRC;
+        /* RTC clock source is LIRC32K */
+        RTC->LXTCTL |= RTC_LXTCTL_LIRC32KEN_Msk;
+        RTC->LXTCTL &= ~RTC_LXTCTL_RTCCKSEL_Msk;
+        RTC->LXTCTL |= RTC_LXTCTL_C32KSEL_Msk;
+
+        return (RTC_CLOCK_SOURCE_LIRC + 1);
     }
 }