Sometimes enumeration fails (about 1 in 50 times on my custom board).
The underlying reason is probably electrical but Linux does not have
the problem.
Comparing the Linux / u-boot implementations shows that Linux
retries the error case whereas u-boot aborts early.
Removing the early abort in u-boot fixes the problem.
Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
---
drivers/w1/w1-uclass.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/w1/w1-uclass.c b/drivers/w1/w1-uclass.c
index 5544b19..ad86bf6 100644
--- a/drivers/w1/w1-uclass.c
+++ b/drivers/w1/w1-uclass.c
@@ -84,10 +84,6 @@ static int w1_enumerate(struct udevice *bus)
rn |= (tmp64 << i);
}
- /* last device or error, aborting here */
- if ((triplet_ret & 0x03) == 0x03)
- last_device = true;
-
if ((triplet_ret & 0x03) != 0x03) {
if (desc_bit == last_zero || last_zero < 0) {
last_device = 1;
--
1.9.1
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