Hey all,
I have a MPC860T board which can have one or two FLASH chips on it. When one FLASH chip is on it it is used in 16bit mode, if two FLASH chips are present it is used in 32 bit mode ( 2 * 16bit FLASH chips in parallel ). The initial chip select is set by a hardware jumper with the reset-word.
U-Boot only allows on setup for BR0/OR0 and resets the bus width, so i hacked the chip select initialization part to not reset the bus width. The question is should u-boot not all ways leave the bus width of CS0 alone ?
An other thing that happens is that i didn't really find a generic way to do flash programming. All boards seem to have their own (copied from each other) flash routines. Would it be possible to have more generic FLASH routines, and for example have a config option to select which FLASH chips are possible (to maybe save space)?
- Erwin