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UPSTREAM: arm: Add support of updating dts before fix-up 

"ethernet" node fix-up for device tree happens before Linux boot.

There can be requirement of updating "ethernet" node even before
fix-up. So, add support of updating "ethernet" node.

Change-Id: I5fcde8776f7f0f5c7323b1340c69d346c9c01833
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
(cherry picked from commit 6bedf44714a145e09fddb8c5a03ada210b812ec9)
This commit is contained in:
Prabhakar Kushwaha 2017-11-23 16:51:41 +05:30 committed by Kever Yang
parent 1ae99f2494
commit ce17630593
2 changed files with 15 additions and 0 deletions
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12
arch/arm/lib/bootm-fdt.c
View File

@ -25,6 +25,13 @@
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_FMAN_ENET
__weak int fdt_update_ethernet_dt(void *blob)
{
return 0;
}
#endif
int arch_fixup_fdt(void *blob)
{
int ret = 0;
@ -64,5 +71,10 @@ int arch_fixup_fdt(void *blob)
#endif
#endif
#ifdef CONFIG_FMAN_ENET
ret = fdt_update_ethernet_dt(blob);
if (ret)
return ret;
#endif
return 0;
}

3
include/fdt_support.h
View File

@ -290,4 +290,7 @@ int fdt_overlay_apply_verbose(void *fdt, void *fdto);
int fdtdec_get_int(const void *blob, int node, const char *prop_name,
int default_val);
#endif
#ifdef CONFIG_FMAN_ENET
int fdt_update_ethernet_dt(void *blob);
#endif
#endif /* ifndef __FDT_SUPPORT_H */