[U-Boot] [RFC 0/6] Odroid U3 usb initialization

[Anand Moon <linux.amoon@gmail.com>]

Odroid u3 had the issue like ethernet would not get initialize
from the u-boot with "usb start" command.

These changes are based on following work done by Tobias Jakobi

[0] https://github.com/tobiasjakobi/u-boot/commit/77a1142eb0aac08464398ef053d66dbf42b42486

These changes tried to address the issue of initialization
of usb devices.

Below is the command I have used for testing.

Tested on Odroid U3+ 
Other board need to tested as I dnot have them.

----------------------------------------------
U-Boot 2019.04-rc4-00089-ga5515f5f60 (Apr 01 2019 - 11:11:59 +0000)

CPU:   Exynos4412 @ 1 GHz
Model: Odroid based on Exynos4412
Type:  u3
DRAM:  2 GiB
LDO20 at VDDQ_EMMC_1.8V: set 1800000 uV; enabling
LDO22 at VDDQ_EMMC_2.8V: set 2800000 uV; enabling
LDO21 at TFLASH_2.8V: set 2800000 uV; enabling
MMC:   SAMSUNG SDHCI: 1, EXYNOS DWMMC: 0
Loading Environment from MMC... Card did not respond to voltage select!
*** Warning - No block device, using default environment

Net:   No ethernet found.
Hit any key to stop autoboot:  0
Odroid #
Odroid # usb start
starting USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... 4 USB Device(s) found
       scanning usb for storage devices... 1 Storage Device(s) found
       scanning usb for ethernet devices... 1 Ethernet Device(s) found
Odroid # usb  reset
resetting USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... 4 USB Device(s) found
       scanning usb for storage devices... 1 Storage Device(s) found
       scanning usb for ethernet devices... 1 Ethernet Device(s) found
Odroid # usb info
1: Hub,  USB Revision 2.0
 - u-boot EHCI Host Controller
 - Class: Hub
 - PacketSize: 64  Configurations: 1
 - Vendor: 0x0000  Product 0x0000 Version 1.0
   Configuration: 1
   - Interfaces: 1 Self Powered 0mA
     Interface: 0
     - Alternate Setting 0, Endpoints: 1
     - Class Hub
     - Endpoint 1 In Interrupt MaxPacket 8 Interval 255ms

2: Vendor specific,  USB Revision 2.0
 - Class: Vendor specific
 - PacketSize: 64  Configurations: 1
 - Vendor: 0x0424  Product 0x9730 Version 1.0
   Configuration: 1
   - Interfaces: 1 Bus Powered 500mA
     Interface: 0
     - Alternate Setting 0, Endpoints: 3
     - Class Vendor specific
     - Endpoint 1 In Bulk MaxPacket 512
     - Endpoint 2 Out Bulk MaxPacket 512
     - Endpoint 3 In Interrupt MaxPacket 16 Interval 4ms

3: Hub,  USB Revision 2.0
 - Class: Hub
 - PacketSize: 64  Configurations: 1
 - Vendor: 0x0424  Product 0x3503 Version 161.160
   Configuration: 1
   - Interfaces: 1 Self Powered Remote Wakeup 2mA
     Interface: 0
     - Alternate Setting 0, Endpoints: 1
     - Class Hub
     - Endpoint 1 In Interrupt MaxPacket 1 Interval 12ms
     - Endpoint 1 In Interrupt MaxPacket 1 Interval 12ms

4: Mass Storage,  USB Revision 2.10
 - JMicron JMS567 DB12345678A3
 - Class: (from Interface) Mass Storage
 - PacketSize: 64  Configurations: 1
 - Vendor: 0x152d  Product 0x0578 Version 99.1
   Configuration: 1
   - Interfaces: 1 Self Powered 30mA
     Interface: 0
     - Alternate Setting 0, Endpoints: 2
     - Class Mass Storage, Transp. SCSI, Bulk only
     - Endpoint 1 In Bulk MaxPacket 512
     - Endpoint 2 Out Bulk MaxPacket 512
     - Endpoint 1 Out Bulk MaxPacket 512
     - Endpoint 2 In Bulk MaxPacket 512
     - Endpoint 3 In Bulk MaxPacket 512
     - Endpoint 4 Out Bulk MaxPacket 512

Odroid # reset
resetting ...


U-Boot 2019.04-rc4-00089-ga5515f5f60 (Apr 01 2019 - 11:11:59 +0000)

----------------------

Anand Moon (6):
  odroid: exynos: USB initialization on the U3/X2
  odroid: exynos: usb clean up for U3/X2
  usb: exynos: add init_after_reset for usb reset
  configs: exynos: Add new CONFIG_SYS_ODROID_USB config option
  arm: exynos: odroid: fix the confict scripaddr extra env setting
  arm: exynos: add usbnet_devaddr setting to env

 board/samsung/common/board.c   |  4 ++--
 board/samsung/odroid/Kconfig   |  3 +++
 board/samsung/odroid/odroid.c  | 19 ++++++++++++++-----
 drivers/usb/host/ehci-exynos.c | 33 ++++++++++++++++++++++++++++++++-
 include/configs/odroid.h       |  6 +++++-
 5 files changed, 56 insertions(+), 9 deletions(-)

-- 
2.21.0