P4080DS NOR FLASH OS IMAGE LOAD

[yaseryurtcan]

Hi,

I have P4080DS board. When I want to boot p4080ds from nor flash bank 1, I need to set SW 7[0100XXXX] and load related OS image. Then change SW7 to [0000XXXX] boots the board. Is there a way that without change SW7 configuration load OS image correctly for all nor flash banks?

For example set SW7 to [0000XXXX]  then load os image to boot region 5.(To do that I need to know relative addressing for boot region 5 while SW7 [0000XXXX] ) After that set SW7 to [0101XXXX] then boots to board? Is this possible?

Best regards.

[ufedor]

> When I want to boot p4080ds from nor flash bank 1

Only 2 bank configurations are supported in the Linux SDK: current and alternate - refer to the SDK documentation:

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Note that it is not reliable to have more than two configurations because the NOR Flash size is 128MB and Linux distribution precompiled images consume about 37MB.

Example for 768kB U-Boot mapping with base address 0xeff40000:

SW7[2-4]	Start address	End Address
000	0xeff40000	0xefffffff	current
001	0xeef40000	0xeeffffff
010	0xedf40000	0xedffffff
011	0xecf40000	0xecffffff
100	0xebf40000	0xebffffff	alternate
101	0xeaf40000	0xeaffffff
110	0xe9f40000	0xe9ffffff
111	0xe8f40000	0xe8ffffff

SW7[2] -> 0x0400_0000

SW7[3] -> 0x0200_0000

SW7[4] -> 0x0100_0000