usb_stor_BBB_transport: Do not delay when not required
There is a 5-ms delay in usb_stor_BBB_transport, which occurs every 10 kiB of
data for fragmented fatload usb, i.e. roughly 500 ms of delay per MiB. This adds
up to quite a bit of delay if you're loading a large ramdisk.
The purpose of this delay should be to debounce the 5-V/100-mA USB power up.
This patch skips the delay if the device has already been queried as ready.
Signed-off-by: Jim Shimer <mgi2475@motorola.com>
Rework following the review:
- Rebase against the latest u-boot-usb master.
- Replace typedef with #define.
- Use the existing flags struct field instead of adding a new field.
- Remove the setter function.
- Remove the typecasts.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Ilya Yanok <ilya.yanok@cogentembedded.com>
Cc: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>
Cc: Jim Shimer <mgi2475@motorola.com>
1 file changed