dany/u-boot-megous
1
0
Fork 0
mirror of https://xff.cz/git/u-boot/ synced 2025-09-01 08:42:12 +02:00
Code Issues Packages Projects Releases Wiki Activity

dm: core: Add functions to obtain node's address/size cells

Browse Source 
The of_n_addr_cells() and of_n_size_cells() functions are useful for
getting the size of addresses in a node, but in a few places U-Boot needs
to obtain the actual property value for a node without walking up the
stack. Add functions for this and just the existing code to use it.

Add a comment to the existing ofnode functions which do not do the right
thing with a flat tree.

This fixes a problem reading PCI addresses.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1
This commit is contained in:
Simon Glass
2017-06-12 06:21:31 -06:00
parent f7d6fcf7ae
commit 878d68c0c3
8 changed files with 128 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/core/ofnode.c
View File

@@ -552,7 +552,7 @@ int ofnode_read_addr_cells(ofnode node)
{
if (ofnode_is_np(node))
return of_n_addr_cells(ofnode_to_np(node));
else
else /* NOTE: this call should walk up the parent stack */
return fdt_address_cells(gd->fdt_blob, ofnode_to_offset(node));
}
@@ -560,6 +560,22 @@ int ofnode_read_size_cells(ofnode node)
{
if (ofnode_is_np(node))
return of_n_size_cells(ofnode_to_np(node));
else /* NOTE: this call should walk up the parent stack */
return fdt_size_cells(gd->fdt_blob, ofnode_to_offset(node));
}
int ofnode_read_simple_addr_cells(ofnode node)
{
if (ofnode_is_np(node))
return of_simple_addr_cells(ofnode_to_np(node));
else
return fdt_address_cells(gd->fdt_blob, ofnode_to_offset(node));
}
int ofnode_read_simple_size_cells(ofnode node)
{
if (ofnode_is_np(node))
return of_simple_size_cells(ofnode_to_np(node));
else
return fdt_size_cells(gd->fdt_blob, ofnode_to_offset(node));
}