Clear the USB_READY flag in the storage driver only in case there is an error, otherwise usb_stor_BBB_transport() waits 5 mS before doing anything every single time.
This is because the USB_READY flag is only ever set in usb_test_unit_ready(), which is called only upon storage device probe, not between each and every request. However, the device cannot move out of USB_READY state once it was initialized. Signed-off-by: Marek Vasut <marek.vasut+rene...@gmail.com> Cc: Bin Meng <bmeng...@gmail.com> Cc: Simon Glass <s...@chromium.org> --- common/usb_storage.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/common/usb_storage.c b/common/usb_storage.c index dfcd0f6afb..7307d7743f 100644 --- a/common/usb_storage.c +++ b/common/usb_storage.c @@ -1180,6 +1180,7 @@ retry_it: srb->pdata = (unsigned char *)buf_addr; if (usb_read_10(srb, ss, start, smallblks)) { debug("Read ERROR\n"); + ss->flags &= ~USB_READY; usb_request_sense(srb, ss); if (retry--) goto retry_it; @@ -1190,7 +1191,6 @@ retry_it: blks -= smallblks; buf_addr += srb->datalen; } while (blks != 0); - ss->flags &= ~USB_READY; debug("usb_read: end startblk " LBAF ", blccnt %x buffer %lx\n", start, smallblks, buf_addr); @@ -1265,6 +1265,7 @@ retry_it: srb->pdata = (unsigned char *)buf_addr; if (usb_write_10(srb, ss, start, smallblks)) { debug("Write ERROR\n"); + ss->flags &= ~USB_READY; usb_request_sense(srb, ss); if (retry--) goto retry_it; @@ -1275,7 +1276,6 @@ retry_it: blks -= smallblks; buf_addr += srb->datalen; } while (blks != 0); - ss->flags &= ~USB_READY; debug("usb_write: end startblk " LBAF ", blccnt %x buffer %lx\n", start, smallblks, buf_addr); @@ -1470,10 +1470,10 @@ int usb_stor_get_info(struct usb_device *dev, struct us_data *ss, memset(pccb->pdata, 0, 8); if (usb_read_capacity(pccb, ss) != 0) { printf("READ_CAP ERROR\n"); + ss->flags &= ~USB_READY; cap[0] = 2880; cap[1] = 0x200; } - ss->flags &= ~USB_READY; debug("Read Capacity returns: 0x%08x, 0x%08x\n", cap[0], cap[1]); #if 0 if (cap[0] > (0x200000 * 10)) /* greater than 10 GByte */ -- 2.23.0 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot