diff --git a/core/drivers/clk/sam/at91_pmc.h b/core/drivers/clk/sam/at91_pmc.h
index 5b4a5547ad6..0eae3a0721a 100644
--- a/core/drivers/clk/sam/at91_pmc.h
+++ b/core/drivers/clk/sam/at91_pmc.h
@@ -59,7 +59,7 @@
 #define AT91_PMC_PLL_UPDT			0x1C
 #define	  AT91_PMC_PLL_UPDT_UPDATE		BIT(8)
 #define	  AT91_PMC_PLL_UPDT_ID			BIT(0)
-#define	  AT91_PMC_PLL_UPDT_ID_MSK		(0xf)
+#define	  AT91_PMC_PLL_UPDT_ID_MASK		GENMASK_32(3, 0)
 #define	  AT91_PMC_PLL_UPDT_STUPTIM		(0xff << 16)
 
 #define	AT91_CKGR_MOR				0x20
@@ -137,7 +137,36 @@
 #define     AT91_PMC_PLLADIV2_ON		BIT(12)
 #define	  AT91_PMC_H32MXDIV	BIT(24)
 
+/* definitions for the PMC register of SAMA7G5 */
+#define AT91_PMC_MCR_V2			0x30
+#define AT91_PMC_MCR_V2_ID_MASK		GENMASK_32(3, 0)
+#define AT91_PMC_MCR_V2_ID(_id)		((_id) & AT91_PMC_MCR_V2_ID_MASK)
+#define AT91_PMC_MCR_V2_CMD		BIT(7)
+#define AT91_PMC_MCR_V2_DIV_MASK	GENMASK_32(10, 8)
+#define AT91_PMC_MCR_V2_DIV1		SHIFT_U32(0, 8)
+#define AT91_PMC_MCR_V2_DIV2		SHIFT_U32(1, 8)
+#define AT91_PMC_MCR_V2_DIV4		SHIFT_U32(2, 8)
+#define AT91_PMC_MCR_V2_DIV8		SHIFT_U32(3, 8)
+#define AT91_PMC_MCR_V2_DIV16		SHIFT_U32(4, 8)
+#define AT91_PMC_MCR_V2_DIV32		SHIFT_U32(5, 8)
+#define AT91_PMC_MCR_V2_DIV64		SHIFT_U32(6, 8)
+#define AT91_PMC_MCR_V2_DIV3		SHIFT_U32(7, 8)
+#define AT91_PMC_MCR_V2_CSS_SHIFT	16
+#define AT91_PMC_MCR_V2_CSS_MASK	GENMASK_32(20, 16)
+#define AT91_PMC_MCR_V2_CSS_MD_SLCK	SHIFT_U32(0, 16)
+#define AT91_PMC_MCR_V2_CSS_TD_SLCK	SHIFT_U32(1, 16)
+#define AT91_PMC_MCR_V2_CSS_MAINCK	SHIFT_U32(2, 16)
+#define AT91_PMC_MCR_V2_CSS_MCK0	SHIFT_U32(3, 16)
+#define AT91_PMC_MCR_V2_CSS_SYSPLL	SHIFT_U32(5, 16)
+#define AT91_PMC_MCR_V2_CSS_DDRPLL	SHIFT_U32(6, 16)
+#define AT91_PMC_MCR_V2_CSS_IMGPLL	SHIFT_U32(7, 16)
+#define AT91_PMC_MCR_V2_CSS_BAUDPLL	SHIFT_U32(8, 16)
+#define AT91_PMC_MCR_V2_CSS_AUDIOPLL	SHIFT_U32(9, 16)
+#define AT91_PMC_MCR_V2_CSS_ETHPLL	SHIFT_U32(10, 16)
+#define AT91_PMC_MCR_V2_EN		BIT(28)
+
 #define AT91_PMC_XTALF				0x34
+#define AT91_PMC_XTALF_XTALF			7
 
 #define	AT91_PMC_USB				0x38
 #define	  AT91_PMC_USBS				(0x1 << 0)