[U-Boot] [PATCH v1 1/2] Revert "powerpc: mpc85xx: remove P2020DS board support"

[york sun]

On 02/01/2016 07:42 PM, Bin Meng wrote:

<snip>

Bin,

> We should add device tree to these platforms. The non-device tree
> (U_BOOT_DEVICES) was mainly for some SPL boards which does not have
> enough RAM before memory is initialized. I think you may refer to this
> patch: http://patchwork.ozlabs.org/patch/561853/

I looked into ls1021atwr earlier, ns16550 driver takes default value
CONFIG_SYS_NS16550_CLK when the device tree doesn't have the clock-frequency
node. It is a smart solution for device-tree enabled platforms.

Even I believe we want to go with device tree for new boards, I don't believe
driver model has to be used with device tree. We have many boards with
sd/spi/nand boot options, including the P2020DS I am trying to bring back.

York