>> local...@fa200100 {
>> compatible = "fsl,mpc885-localbus", "fsl,pq1-localbus",
>> "simple-bus";
>> #address-cells =<2>;
>> #size-cells =<1>;
>> reg =<0xfa200100 0x40>;
>>
>> ranges =<
>> 0 0 0xfe000000 0x01000000 // I'm not sure about
>> this?
>> >;
>> };
>
> Change 0xfe000000 to wherever u-boot maps your flash, and 0x01000000 to
> whatever the size of the flash localbus mapping is.
>
> Or more generally update this section to hold whatever is connected to the
> localbus on your board. The first cell is the chipselect.
The chipselect? Isn't it just the child-bus-addr? BTW, do we have to
define the #address-cells to 2? 1 is not enough?
SDRAM uses CS0/6, each 64MB. BDI2000 configuration is as follows.
; init memory controller
WM32 0xFA200104 0xfe000ff6 ;;OR0: Flash 32MB
WM32 0xFA200100 0xfc000001 ;;BR0: Flash at 0xFC000000,
32bit, R/W, no parity, use GPCM
WM32 0xFA20010C 0xfc000e00 ;;OR1: SDRAM 64MB, all accesses
WM32 0xFA200108 0x00000081 ;;BR1: SDRAM at 0x00000000,
32bit, R/W, no parity, use UPMA
WM32 0xFA200134 0xfc000e00 ;;OR6: SDRAM 64MB, all accesses
WM32 0xFA200130 0x04000081 ;;BR6: SDRAM at 0x04000000, 32bit, R/W,
no parity, use UPMA
When defining memory's reg property, can a single pair <0 0x08000000>
be enough? Or must it be <0 0x04000000 0x04000000 0x04000000>?
Thanks,
-Shawn.
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