Reading and setting LDOTUNE values

I am working on a driver for the DW1000/DWM1000 and want to sanity check that I am reading the LDO tune correctly.

When reading from OTP, I get [0x8, 0x88, 0x88, 0x88, 0x88], which is obviously not 0 but it seems an odd number.

However, because it is not 0 it should be programmed to the LDOTUNE register at 0x28:30, but the reset value of that register is also [0x8, 0x88, 0x88, 0x88, 0x88]

Is this all normal? I have also tried setting the AON_WCFG to automatically load the LDO tune on wake up and cycled sleep mode, then read 0x28:30 which is still [0x8, 0x88, 0x88, 0x88, 0x88]. But I am not sure if it is failing to copy or successfully copying because everything has the same value.

Also, is the correct procedure to write this value to 0x28:30, or to set LDO_KICK in the OTP_SF register?