This patch prevent u-boot from hanging on a UltraZed EG board (zynqmp).
Without the patch,
(drv = env_driver_lookup(ENVOP_INIT, prio))
evaluates to 0, causing prio = 0
Then, (!prio) is hit, returning -ENODEV causing a stall.
With the patch,
instead of returning -ENODEV and causing a stall, we
set gd->env_addr (is this really needed?)
and then
mark gd->env_valid = ENV_INVALID to use the default env.
---
env/env.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/env/env.c b/env/env.c
index e534008006..44a65ab216 100644
--- a/env/env.c
+++ b/env/env.c
@@ -335,17 +335,18 @@ int env_init(void)
debug("%s: Environment %s init done (ret=%d)\n", __func__,
drv->name, ret);
-
- if (gd->env_valid == ENV_INVALID)
- ret = -ENOENT;
}
- if (!prio)
- return -ENODEV;
+ if (!prio) {
+ gd->env_addr = (ulong)&default_environment[0];
+ gd->env_valid = ENV_INVALID;
+
+ return 0;
+ }
if (ret == -ENOENT) {
gd->env_addr = (ulong)&default_environment[0];
- gd->env_valid = ENV_VALID;
+ gd->env_valid = ENV_INVALID;
return 0;
}
--
2.17.1
