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fdt_support: Add fdt_delete_disabled_nodes() and use in Turris MOX

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Move Turris MOX specific remove_disabled_nodes() to fdt_support with
name fdt_delete_disabled_nodes(), so that others can potentially use it.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Marek Behún 2021-11-26 14:57:15 +01:00 committed by Stefan Roese
parent 08370038df
commit 574506c327
3 changed files with 26 additions and 19 deletions
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20
board/CZ.NIC/turris_mox/turris_mox.c
View file

@ -749,24 +749,6 @@ static int setup_switch(void *blob, int id)
return 0;
}
static int remove_disabled_nodes(void *blob)
{
while (1) {
int res, offset;
offset = fdt_node_offset_by_prop_value(blob, -1, "status",
"disabled", 9);
if (offset < 0)
break;
res = fdt_del_node(blob, offset);
if (res < 0)
return res;
}
return 0;
}
int ft_board_setup(void *blob, struct bd_info *bd)
{
int res;
@ -872,7 +854,7 @@ int ft_board_setup(void *blob, struct bd_info *bd)
fdt_fixup_ethernet(blob);
/* Finally remove disabled nodes, as per Rob Herring's request. */
remove_disabled_nodes(blob);
fdt_delete_disabled_nodes(blob);
return 0;
}

23
common/fdt_support.c
View file

@ -695,6 +695,29 @@ int fdt_shrink_to_minimum(void *blob, uint extrasize)
return actualsize;
}
/**
* fdt_delete_disabled_nodes: Delete all nodes with status == "disabled"
*
* @blob: ptr to device tree
*/
int fdt_delete_disabled_nodes(void *blob)
{
while (1) {
int ret, offset;
offset = fdt_node_offset_by_prop_value(blob, -1, "status",
"disabled", 9);
if (offset < 0)
break;
ret = fdt_del_node(blob, offset);
if (ret < 0)
return ret;
}
return 0;
}
#ifdef CONFIG_PCI
#define CONFIG_SYS_PCI_NR_INBOUND_WIN 4

2
include/fdt_support.h
View file

@ -228,6 +228,8 @@ void set_working_fdt_addr(ulong addr);
int fdt_shrink_to_minimum(void *blob, uint extrasize);
int fdt_increase_size(void *fdt, int add_len);
int fdt_delete_disabled_nodes(void *blob);
int fdt_fixup_nor_flash_size(void *blob);
struct node_info;