[U-Boot] [PATCH v1 0/2] usb: dfu: am335x: allow dfu in fullspeed mode only
Lukasz Majewski
l.majewski at samsung.com
Tue Sep 9 15:43:09 CEST 2014
Hi Heiko,
> This patchserie adds the new config option CONFIG_DFU_FULLSPEED.
Is there any special reason to support Full Speed (12 Mbit/sec - USB
1.1) and not rely solely on the High Speed (USB 2.0) as we do now?
> If this is enabled DFU uses fullspeed only. This is used on the
> siemens boards.
Is there any DFU problem with the mentioned Siemens board, that we must
use USB 1.1?
I'd also appreciate more verbose rationale for this patch series - why
this change is needed? What is the expected improvement?
Thanks in advance.
>
> Cc: Tom Rini <trini at ti.com>
> Cc: Lukasz Majewski <l.majewski at samsung.com>
> Cc: Marek Vasut <marex at denx.de>
> Cc: Liu Bin <b-liu at ti.com>
> Cc: Lukas Stockmann <lukas.stockmann at siemens.com>
>
> Heiko Schocher (2):
> usb: dfu: add config option to use in dfu mode fullspeed only
> arm: am335x: siemens board use in DFU mode fullspeed only
>
> README | 3 +++
> drivers/usb/gadget/f_dfu.c | 3 +++
> drivers/usb/gadget/g_dnl.c | 3 +++
> include/configs/siemens-am33x-common.h | 3 ++-
> 4 files changed, 11 insertions(+), 1 deletion(-)
>
--
Best regards,
Lukasz Majewski
Samsung R&D Institute Poland (SRPOL) | Linux Platform Group
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