diff --git a/os/hal/ports/STM32/STM32G0xx/stm32_dmamux.h b/os/hal/ports/STM32/STM32G0xx/stm32_dmamux.h
index 38226919f..07dc71ab0 100644
--- a/os/hal/ports/STM32/STM32G0xx/stm32_dmamux.h
+++ b/os/hal/ports/STM32/STM32G0xx/stm32_dmamux.h
@@ -96,6 +96,24 @@
 #define STM32_DMAMUX1_UCPD1_TX      59
 #define STM32_DMAMUX1_UCPD2_RX      60
 #define STM32_DMAMUX1_UCPD2_TX      61
+#define STM32_DMAMUX1_I2C3_RX       62
+#define STM32_DMAMUX1_I2C3_TX       63
+#define STM32_DMAMUX1_LPUART2_RX    64
+#define STM32_DMAMUX1_LPUART2_TX    65
+#define STM32_DMAMUX1_SPI3_RX       66
+#define STM32_DMAMUX1_SPI3_TX       67
+#define STM32_DMAMUX1_TIM3_CH1      68
+#define STM32_DMAMUX1_TIM3_CH2      69
+#define STM32_DMAMUX1_TIM3_CH3      70
+#define STM32_DMAMUX1_TIM3_CH4      71
+#define STM32_DMAMUX1_TIM3_TRIG     72
+#define STM32_DMAMUX1_TIM3_UP       73
+#define STM32_DMAMUX1_USART5_RX     74
+#define STM32_DMAMUX1_USART5_TX     75
+#define STM32_DMAMUX1_UART5_RX      STM32_DMAMUX1_USART5_RX /* Legacy.      */
+#define STM32_DMAMUX1_UART5_TX      STM32_DMAMUX1_USART5_TX /* Legacy.      */
+#define STM32_DMAMUX1_USART6_RX     76
+#define STM32_DMAMUX1_USART6_TX     77
 /** @} */
 
 /*===========================================================================*/
diff --git a/os/hal/ports/STM32/STM32G0xx/stm32_registry.h b/os/hal/ports/STM32/STM32G0xx/stm32_registry.h
index 188d950a4..eca60e362 100644
--- a/os/hal/ports/STM32/STM32G0xx/stm32_registry.h
+++ b/os/hal/ports/STM32/STM32G0xx/stm32_registry.h
@@ -74,7 +74,7 @@
 #define STM32_TAMP_FLTCR_MASK               0x000000FF
 #define STM32_TAMP_IER_MASK                 0x003C0003
 
-#if defined(STM32G081xx) || defined(__DOXYGEN__)
+#if defined(STM32G081xx) || defined(STM32G0C1xx) || defined(__DOXYGEN__)
 #define STM32_HAS_RNG1                      TRUE
 #define STM32_HAS_HASH1                     FALSE
 #define STM32_HAS_CRYP1                     TRUE
@@ -251,6 +251,7 @@
 #define STM32_HAS_UART7                     FALSE
 #define STM32_HAS_UART8                     FALSE
 #define STM32_HAS_LPUART1                   TRUE
+#define STM32_HAS_LPUART2                   FALSE
 
 /* USB attributes.*/
 #define STM32_HAS_OTG1                      FALSE
@@ -429,10 +430,12 @@
 #define STM32_HAS_USART3                    TRUE
 #define STM32_HAS_UART4                     TRUE
 #define STM32_HAS_LPUART1                   TRUE
+
 #define STM32_HAS_UART5                     FALSE
 #define STM32_HAS_USART6                    FALSE
 #define STM32_HAS_UART7                     FALSE
 #define STM32_HAS_UART8                     FALSE
+#define STM32_HAS_LPUART2                   FALSE
 
 /* USB attributes.*/
 #define STM32_HAS_OTG1                      FALSE
@@ -615,10 +618,12 @@
 #define STM32_HAS_USART3                    TRUE
 #define STM32_HAS_UART4                     TRUE
 #define STM32_HAS_LPUART1                   TRUE
+
 #define STM32_HAS_UART5                     FALSE
 #define STM32_HAS_USART6                    FALSE
 #define STM32_HAS_UART7                     FALSE
 #define STM32_HAS_UART8                     FALSE
+#define STM32_HAS_LPUART2                   FALSE
 
 /* USB attributes.*/
 #define STM32_HAS_OTG1                      FALSE