[U-Boot] [PATCH 1/2] configs: am43xx_evm: Merge in usbhost defconfig

[Lokesh Vutla]

On Saturday 11 March 2017 03:32 AM, Andrew F. Davis wrote:
> I was once again going to try to sync the mode specific defconfigs
> with the main AM43xx defconfig when I decided it may make more
> sense to merge in USB host boot support in to the main defconfig.
> 
> The reason we had separate defconfigs before was that SPL needs
> to be placed in OCMC SRAM by the ROM when booting from USB as
> it uses DMA and ARM internal SRAM space is not externally
> accessible. All this means is we need to have our SPL load address
> be greater than 0x4030_0000 when USB booting. For other cases
> we use 0x402F_0000, this gives us an extra 64kB of space in addition
> to the 256kB of OCMC RAM, as our SPL is not even half this size
> currently this is not strictly needed.
> 
> Make all boot modes load to 0x4030_0000+, add SPL USB host
> boot support to the main am43xx defconfig, and then remove

This breaks all the supported peripheral boot modes. Have you tested
UART/ethernet boot with this patch?

I specifically wanted a separate defconfig for usb_host as it is a
special case and rest of the boot modes can be supported using a single
defconfig. If you don't like this approach, please create separate
defconfigs for peripheral and memory boot modes.

Thanks and regards,
Lokesh