32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
From 656ccd6ac62714b11b163b6eb62370a78c7bc808 Mon Sep 17 00:00:00 2001
|
|
From: pcm720 <pcm720@users.noreply.github.com>
|
|
Date: Mon, 20 Jul 2020 20:33:26 +0300
|
|
Subject: [PATCH] drivers: nvme: address NVMe instability for Pinebook Pro
|
|
|
|
Apparently, some NVMe SSDs on Pinebook Pro don't become ready before timeout specified in drive's CAP register expires.
|
|
The workaround is to increase timeout. Tested and confirmed to work on Intel 660p.
|
|
---
|
|
drivers/nvme/nvme.c | 6 ++++++
|
|
1 file changed, 6 insertions(+)
|
|
|
|
diff --git a/drivers/nvme/nvme.c b/drivers/nvme/nvme.c
|
|
index fc64d93ab8..138b9f8fbb 100644
|
|
--- a/drivers/nvme/nvme.c
|
|
+++ b/drivers/nvme/nvme.c
|
|
@@ -61,6 +61,12 @@ static int nvme_wait_ready(struct nvme_dev *dev, bool enabled)
|
|
|
|
/* Timeout field in the CAP register is in 500 millisecond units */
|
|
timeout = NVME_CAP_TIMEOUT(dev->cap) * 500;
|
|
+
|
|
+ #ifdef CONFIG_TARGET_PINEBOOK_PRO_RK3399
|
|
+ /* Some NVMe SSDs on Pinebook Pro don't become ready before timeout expires.
|
|
+ Workaround: increase timeout */
|
|
+ timeout *= 2;
|
|
+ #endif
|
|
|
|
start = get_timer(0);
|
|
while (get_timer(start) < timeout) {
|
|
--
|
|
2.27.0
|
|
|