[U-Boot] [PATCH 0/7] Improve rockusb support in U-Boot

[Lukasz Majewski <lukma@denx.de>]

Hi Alberto,

> Dear Kever,
> 
> On Thu, Jul 5, 2018 at 3:15 AM, Kever Yang
> <kever.yang@rock-chips.com> wrote:
> >
> > Hi Alberto,
> >
> >     Thanks for your patches, and I'm so glad for people using
> > rockusb and try to improve it.
> >
> >     You can reference to rockchip source code here:
> > https://github.com/rockchip-linux/u-boot/blob/release/drivers/usb/gadget/f_rockusb.c
> >
> >     We use msc as base framework instead of dfu because of the big
> > performance improvement, and the cmd handling part will be the
> > same.  
> 
> 
> Don't know if injecting rockusb protocol in f_mass_storage.c will be
> acceptable in terms of coexistence and maintainability of resulting
> f_mass_storage.c 

I would like to have the rockchip part separate to be included by
enabling Kconfig option in u-boot.

> Do you plan to upstream your tree?
> 
> I saw patches in your tree and resulting f_rockusb.c is more clear
> yes. But we pay the price in f_mass_storage.c.

It would be nice to see the code posted on u-boot ML.

> 
> Best Regards,
> Alberto Panizzo
> 
> --
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> 
> >
> >
> > PS: Yes, rockusb is available for all Rockchip's SoCs.
> >
> > Thanks,
> > - Kever
> > On 07/04/2018 03:02 AM, Alberto Panizzo wrote:  
> > > rockusb protocol has been introduced by Eddie Cai in U-Boot
> > > mainline allowing to write internal eMMC of RK3288 based boards
> > > (and potentially all other Rockchip's CPUs).
> > >
> > > On workstation side the open source project rkdeveloptool do
> > > implement the rockusb protocol. You can find it on GitHub here:
> > > https://github.com/rockchip-linux/rkdeveloptool
> > >
> > > This patchset increase the supported functionalities on target
> > > side allowing developers to:
> > > - Read flash: rl command of rkdeveloptool
> > > - Read chip version: rci command of rkdeveloptool
> > > - Complete the write cycle implementing block erase
> > > - Improve read/write speed
> > >
> > > Alberto Panizzo (7):
> > >   usb: rockchip: fix command failed on host side due to missing
> > > data usb: rockchip: implement skeleton for K_FW_GET_CHIP_VER
> > > command rockchip: rk3288: implement reading chip version from
> > > bootrom code usb: rockchip: implement K_FW_LBA_READ_10 command
> > >   usb: rockchip: implement K_FW_LBA_ERASE_10 command
> > >   usb: rockchip: be quiet on serial port while transferring data
> > >   usb: rockchip: boost up write speed from 4MB/s to 15MB/s
> > >
> > >  arch/arm/include/asm/arch-rockchip/f_rockusb.h |   6 +-
> > >  arch/arm/mach-rockchip/rk3288/Makefile         |   1 +
> > >  arch/arm/mach-rockchip/rk3288/rockusb_rk3288.c |  30 ++++
> > >  drivers/usb/gadget/f_rockusb.c                 | 225
> > > ++++++++++++++++++++++++- 4 files changed, 253 insertions(+), 9
> > > deletions(-) create mode 100644
> > > arch/arm/mach-rockchip/rk3288/rockusb_rk3288.c 
> >
> >  




Best regards,

Lukasz Majewski

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