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arm: mach-k3: Warn when node to disable is not found

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Not finding a node that we try to disable does not always need to be
fatal to boot but should at least print out a warning. Return error
from fdt_disable_node as it did fail to disable the node, but only
warn in the case of disabling the TRNG as this will not prevent boot.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
This commit is contained in:
Andrew F. Davis 2020-01-07 18:12:40 -05:00 • committed by Lokesh Vutla
parent 60c8e50452
commit 28b90a4656
2 changed files with 3 additions and 5 deletions
arch/arm/mach-k3
common.c
board/ti/am65x
evm.c

4
arch/arm/mach-k3/common.c
View file

@ -174,8 +174,8 @@ int fdt_disable_node(void *blob, char *node_path)
offs = fdt_path_offset(blob, node_path);
if (offs < 0) {
debug("Node %s not found.\n", node_path);
return 0;
printf("Node %s not found.\n", node_path);
return offs;
}
ret = fdt_setprop_string(blob, offs, "status", "disabled");
if (ret < 0) {

4
board/ti/am65x/evm.c
View file

@ -105,10 +105,8 @@ int ft_board_setup(void *blob, bd_t *bd)
#if defined(CONFIG_TI_SECURE_DEVICE)
/* Make HW RNG reserved for secure world use */
ret = fdt_disable_node(blob, "/interconnect@100000/trng@4e10000");
if (ret) {
if (ret)
printf("%s: disabling TRGN failed %d\n", __func__, ret);
return ret;
}
#endif
return 0;