i.MX6Q MMDCx_MDASP[CS0_END] for 4GB with 2CS

[m_c]

We found two different values by below three methods for CS0_END for 4GB with 2CS. Why difference value? Which is right?

1. Page 3840 of IMX6DQRM revision 2 is 0x3f

2. Page 3926 of IMX6DQRM revision 2 is 0x47.

2048M/32M+0x7=0x40+0x7=0x47

3. Mx6DQSDL DDR3 Script Aid V0.09.xlsx is 0x47

[Yuri · Accepted solution]

  The case MDASP[CS0_END] = 0x3F means :

CS0 is responsible for address range 0x1000_0000 - (0x8000_0000 - 1)

CS1 is responsible for address range 0x8000_0000 - (0xFFFF_FFFF)

  The case MDASP[CS0_END] = 0x47 means :

CS0 is responsible for address range 0x1000_0000 - (0x9000_0000 - 1)

CS1 is responsible for address range 0x9000_0000 - 0xFFFF_FFFF

Basically both may be used.

Have a great day,
Yuri

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