[U-Boot] [RFC PATCH v2 1/5] spl: dfu: add dfu support in SPL

[Tom Rini <trini@konsulko.com>]

On Thu, Jul 28, 2016 at 04:09:10AM +0000, B, Ravi wrote:
> Tom
> 
> > On 27-Jul-2016, at 8:55 PM, Tom Rini <trini@konsulko.com> wrote:
> > 
> >> On Wed, Jul 27, 2016 at 02:04:24PM +0000, B, Ravi wrote:
[snip]
> >>>> diff --git a/common/command.c b/common/command.c index 
> >>>> e5d9b9c..d1c049c 100644
> >>>> --- a/common/command.c
> >>>> +++ b/common/command.c
> >>>> @@ -520,7 +520,7 @@ enum command_ret_t cmd_process(int flag, int argc, char * const argv[],
> >>>>    if (argc > cmdtp->maxargs)
> >>>>        rc = CMD_RET_USAGE;
> >>>> 
> >>>> -#if defined(CONFIG_CMD_BOOTD)
> >>>> +#if defined(CONFIG_CMD_BOOTD) && !defined(CONFIG_SPL_BUILD)
> >>>>    /* avoid "bootd" recursion */ Check whether they use DMA or PIO mode.
> >> 
> >>>>    else if (cmdtp->cmd == do_bootd) {
> >>>>        if (flag & CMD_FLAG_BOOTD) {
> >> 
> >>> Why do we need this?
> >> 
> >> Actually CONFIG_CMD_BOOTD is not required for SPL-DFU. 
> >> But cmd/Kconfg has defined CONFIG_CMD_BOOTD by default, which is causing compilation error for "do_bootd" not defined.
> >> Again do_bootd depends on CONFIG_CMD_BOOTM which is not defined for SPL.
> >> 
> >> What is best way? What do you suggest ?
> > 
> > First, what is the exact compile error you get?  And second, probably
> > disable CMD_BOOTD.
> 
> Since CMD_BOOTD is enabled, the function do_bood is undefined due to cmd/bootm.c compiled out for SPL.
> 
> As you said, better to disable CMD_BOOTD.

Ah, the problems of bringing in command parsing stuff to SPL.  Yeah, for
now lets turn off CMD_BOOTD but I think long term this is why we need to
not be relying on command parsing but instead use the API directly.

-- 
Tom
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