[U-Boot] [PATCH 01/10] dm: fdt: scan for devices under /firmware too

[Michal Simek]

On 15.8.2018 16:17, Tom Rini wrote:
> On Mon, Aug 13, 2018 at 05:53:38PM +0200, Jens Wiklander wrote:
> 
>> Just as /chosen may contain devices /firmware may contain devices, scan
>> for devices under /firmware too.
>>
>> Signed-off-by: Jens Wiklander <jens.wiklander at linaro.org>
>> ---
>>  drivers/core/root.c | 15 ++++++++++-----
>>  1 file changed, 10 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/core/root.c b/drivers/core/root.c
>> index 72bcc7d7f2a3..0dca507e1187 100644
>> --- a/drivers/core/root.c
>> +++ b/drivers/core/root.c
>> @@ -265,9 +265,15 @@ static int dm_scan_fdt_node(struct udevice *parent, const void *blob,
>>  	for (offset = fdt_first_subnode(blob, offset);
>>  	     offset > 0;
>>  	     offset = fdt_next_subnode(blob, offset)) {
>> -		/* "chosen" node isn't a device itself but may contain some: */
>> -		if (!strcmp(fdt_get_name(blob, offset, NULL), "chosen")) {
>> -			pr_debug("parsing subnodes of \"chosen\"\n");
>> +		const char *node_name = fdt_get_name(blob, offset, NULL);
>> +
>> +		/*
>> +		 * The "chosen" and "firmware" nodes aren't devices
>> +		 * themselves but may contain some:
>> +		 */
>> +		if (!strcmp(node_name, "chosen") ||
>> +		    !strcmp(node_name, "firmware")) {
>> +			pr_debug("parsing subnodes of \"%s\"\n", node_name);
>>  
>>  			err = dm_scan_fdt_node(parent, blob, offset,
>>  					       pre_reloc_only);
> 
> So, the /firmware node seems special.  Have you talked with the
> devicetree folks to get it listed in the spec?  That would seem rather
> valuable for something used by many parties.  Thanks!
> 

some days ago we have sent a patch for this too.
https://lists.denx.de/pipermail/u-boot/2018-August/338049.html

It is using different way but it should do the same thing.

Thanks,
Michal