Mercury CDCEL949 Clock Parameters

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  • This configures Y4 as 24Mhz for USB, and Y5 as 12Mhz for audio
U-Boot > i2c mm 6c a0.1
000000a0: 00 ? 00
000000a1: 00 ? 00
000000a2: 00 ? 00
000000a3: 00 ? 00
000000a4: 6d ? 6d
000000a5: 02 ? 02
000000a6: 09 ? 09
000000a7: 12 ? 12
000000a8: ff ? ff
000000a9: 80 ? 80
000000aa: 02 ? 02
000000ab: 07 ? 07
000000ac: 00 ? 00
000000ad: 40 ? 40
000000ae: 02 ? 02
000000af: 08 ? 08
000000b0: 00 ? .
U-Boot > 
  • To write values to the CDCEL949 EEPROM
U-Boot > i2c mm 6c 86.1
00000086: 0e ? 1
00000087: 00 ? .
U-Boot > i2c mm 6c 86.1
00000086: 01 ? 0
00000087: 00 ? .
U-Boot >