On 17. 02. 20 21:35, Thirupathaiah Annapureddy wrote:
> Subnodes under "/firmware" node are scanned twice in
> dm_scan_fdt_node() and dm_extended_scan_fdt().
> This patch removes the scanning in dm_scan_fdt_node() to
> avoid double scanning.
> 
> This reverts commit 747558d014577526bf2e8d9fe9ca748fdbf75d8a.
> 
> Signed-off-by: Thirupathaiah Annapureddy <thir...@linux.microsoft.com>
> ---
>  drivers/core/root.c | 15 +++++----------
>  1 file changed, 5 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/core/root.c b/drivers/core/root.c
> index e85643819e..cb695e933a 100644
> --- a/drivers/core/root.c
> +++ b/drivers/core/root.c
> @@ -254,15 +254,9 @@ 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)) {
> -             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);
> +             /* "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");
>  
>                       err = dm_scan_fdt_node(parent, blob, offset,
>                                              pre_reloc_only);
> @@ -279,7 +273,8 @@ static int dm_scan_fdt_node(struct udevice *parent, const 
> void *blob,
>                                    pre_reloc_only);
>               if (err && !ret) {
>                       ret = err;
> -                     debug("%s: ret=%d\n", node_name, ret);
> +                     debug("%s: ret=%d\n", fdt_get_name(blob, offset, NULL),
> +                           ret);
>               }
>       }

This has come up several times. Please join this thread which is fixing
this issue.
https://lists.denx.de/pipermail/u-boot/2020-February/400165.html

Thanks,
Michal


-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs


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