[PATCH v2 1/2] nvme: Enable FUA

[Jon Lin]

Most NVME devcies maintain data in internal cache for an uncertain
times, and u-boot has no method to force NVME to flush cache.
So this patch adds FUA to avoid data loss caused by power off after data
programming.

Signed-off-by: Jon Lin <jon.lin at rock-chips.com>
Reviewed-by: Stefan Agner <stefan at agner.ch>
---

(no changes since v1)

 drivers/nvme/nvme.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/nvme/nvme.c b/drivers/nvme/nvme.c
index f6465ea7f4..5d05cb6e9e 100644
--- a/drivers/nvme/nvme.c
+++ b/drivers/nvme/nvme.c
@@ -761,6 +761,9 @@ static ulong nvme_blk_rw(struct udevice *udev, lbaint_t blknr,
 	c.rw.appmask = 0;
 	c.rw.metadata = 0;
 
+	/* Always enable FUA for data integrity */
+	c.rw.control |= NVME_RW_FUA;
+
 	while (total_lbas) {
 		if (total_lbas < lbas) {
 			lbas = (u16)total_lbas;
-- 
2.17.1