nxpfrankli
commented
2 months ago we recent meet similar problem at small me mory devices.
try patch linux kernel driver
Changed the page alignment check within the prepare_td_for_sg() function
since the first buffer could not be page size aligned, so the check is
only performed for the following buffers.
Signed-off-by: Han Xu <[han.xu@nxp.com](mailto:han.xu@nxp.com)>
---
drivers/usb/chipidea/udc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 0b7bd3c643c3..13cbf2e2aeae 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -517,7 +517,8 @@ static int prepare_td_for_sg(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
}
while (i++ < req->num_mapped_sgs) {
- if (sg_dma_address(s) % PAGE_SIZE) {
+ /* The first buffer could be not page size aligned. */
+ if ((sg_dma_address(s) % PAGE_SIZE) && (i > 1)) {
dev_err(hwep->ci->dev, "not page aligned sg buffer\n");
return -EINVAL;
}
swechencheng
Hi, I am trying uuu (1.5.181) on a custom board based on iMX6UL and flash rootfs on NAND. I build both core-image-minimal and core-image-full-cmdline with Yocto. I am based on the example nand script:
Flashing core-image-minimal is fine, however,
FBK: ucmd umount /mnt/mtdis very slow.But when flashing core-image-full-cmdline, it fails:
From the target serial log:
This is a very steady failure which fails exactly at the same 55%. Thanks in advance if anyone could help to look at this.