All Linux firmware drivers are put under "/firmware" node and it has support to populate "/firmware" node by default.
u-boot and Linux can share same DTB. In this case, driver probe for devices under "/firmware" will not be invoked as "/firmware" does not have its own "compatible" property.
This patch scans "/firmware" node by default like "/clocks".
Signed-off-by: Rajan Vaja rajan.vaja@xilinx.com --- drivers/core/root.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/core/root.c b/drivers/core/root.c index 1ab4c38..47d10b8 100644 --- a/drivers/core/root.c +++ b/drivers/core/root.c @@ -357,8 +357,14 @@ int dm_extended_scan_fdt(const void *blob, bool pre_reloc_only) }
ret = dm_scan_fdt_ofnode_path("/clocks", pre_reloc_only); - if (ret) + if (ret) { debug("scan for /clocks failed: %d\n", ret); + return ret; + } + + ret = dm_scan_fdt_ofnode_path("/firmware", pre_reloc_only); + if (ret) + debug("scan for /firmware failed: %d\n", ret);
return ret; }