add some definitions for audio

teensy4/imxrt.h

 #define CCM_CMEOR_MOD_EN_OV_PIT			((uint32_t)(1<<6))
 #define CCM_CMEOR_MOD_EN_OV_GPT			((uint32_t)(1<<5))
 
+#define CCM_CSCMR1_SAI1_CLK_SEL_MASK		(CCM_CSCMR1_SAI1_CLK_SEL(0x03))
+#define CCM_CS1CDR_SAI1_CLK_PRED_MASK		(CCM_CS1CDR_SAI1_CLK_PRED(0x07))
+#define CCM_CS1CDR_SAI1_CLK_PODF_MASK		(CCM_CS1CDR_SAI1_CLK_PODF(0x3f))
+#define CCM_CSCMR1_SAI2_CLK_SEL_MASK		(CCM_CSCMR1_SAI2_CLK_SEL(0x03))
+#define CCM_CS2CDR_SAI2_CLK_PRED_MASK		(CCM_CS2CDR_SAI2_CLK_PRED(0x07))
+#define CCM_CS2CDR_SAI2_CLK_PODF_MASK		(CCM_CS2CDR_SAI2_CLK_PODF(0x3f))
+#define CCM_CSCMR1_SAI3_CLK_SEL_MASK		(CCM_CSCMR1_SAI3_CLK_SEL(0x03))
+#define CCM_CS1CDR_SAI3_CLK_PRED_MASK		(CCM_CS1CDR_SAI3_CLK_PRED(0x07))
+#define CCM_CS1CDR_SAI3_CLK_PODF_MASK		(CCM_CS1CDR_SAI3_CLK_PODF(0x3f))
+#define CCM_CDCDR_SPDIF0_CLK_SEL_MASK		(CCM_CDCDR_SPDIF0_CLK_SEL(0x03))
+#define CCM_CDCDR_SPDIF0_CLK_PRED_MASK		(CCM_CDCDR_SPDIF0_CLK_PRED(0x07))
+#define CCM_CDCDR_SPDIF0_CLK_PODF_MASK		(CCM_CDCDR_SPDIF0_CLK_PODF(0x07))
+
 // 18.8: page 752
 #define IMXRT_CCM_ANALOG	(*(IMXRT_REGISTER32_t *)0x400D8000)
 #define CCM_ANALOG_PLL_ARM		(IMXRT_CCM_ANALOG.offset000)
 #define CCM_ANALOG_PLL_SYS_ENABLE		((uint32_t)(1<<13))
 #define CCM_ANALOG_PLL_SYS_POWERDOWN		((uint32_t)(1<<12))
 #define CCM_ANALOG_PLL_SYS_DIV_SELECT		((uint32_t)(1<<1))
+#define CCM_ANALOG_PLL_AUDIO_POST_DIV_SELECT(n)	((uint32_t)(((n) & 0x03) <<19)) 
+#define CCM_ANALOG_PLL_AUDIO_BYPASS		((uint32_t)(1<<16)) 
+#define CCM_ANALOG_PLL_AUDIO_BYPASS_CLK_SRC(n)	((uint32_t)(((n) & 0x03) <<14)) 
+#define CCM_ANALOG_PLL_AUDIO_ENABLE		((uint32_t)(1<<13)) 
+#define CCM_ANALOG_PLL_AUDIO_POWERDOWN		((uint32_t)(1<<12)) 
+#define CCM_ANALOG_PLL_AUDIO_DIV_SELECT(n)	((uint32_t)((n) & ((1<<6)-1)))
+
+#define CCM_ANALOG_MISC2_DIV_MSB		((uint32_t)(1<<23))
+#define CCM_ANALOG_MISC2_DIV_LSB		((uint32_t)(1<<15))
+
+#define CCM_ANALOG_PLL_AUDIO_NUM_MASK		(((1<<29)-1))
+#define CCM_ANALOG_PLL_AUDIO_DENOM_MASK		(((1<<29)-1))
 
 // 19.7: page 810
 #define IMXRT_CSI		(*(IMXRT_REGISTER32_t *)0x402BC000)
 	asm("dsb");
 	asm("isb");
 }
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