From 878d68c0c357ff62120d5783d950f34ecd1065d9 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 12 Jun 2017 06:21:31 -0600 Subject: dm: core: Add functions to obtain node's address/size cells 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 Tested-by: Marcel Ziswiler Tested-on: Beaver, Jetson-TK1 --- drivers/core/ofnode.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'drivers/core/ofnode.c') diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c index 79c80df7f4a..da7c477c81d 100644 --- a/drivers/core/ofnode.c +++ b/drivers/core/ofnode.c @@ -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)); } -- cgit v1.2.3