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 rockusband 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_r...
We use msc as base framework instead of dfu because of the bigperformance 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 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.
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