Update U-Boot Image via USB on AMC1

1 usb start

usb start

Initialize the USB controler and enumerate all USB devices

AMC1> usb start
starting USB...
USB0:   Register 2000440 NbrPorts 2
Starting the controller
USB XHCI 1.00
scanning bus 0 for devices... 2 USB Device(s) found
AMC1>

usb info

Print detailed information of enumerated devices

AMC1> usb info
1: Hub,  USB Revision 3.0
 - U-Boot XHCI Host Controller
 - Class: Hub
 - PacketSize: 9  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: Mass Storage,  USB Revision 2.0
 - USBest Technology USB Mass Storage Devie 1009135102477e
 - Class: (from Interface) Mass Storage
 - PacketSize: 64  Configurations: 1
 - Vendor: 0x1307  Product 0x0165 Version 1.0
   Configuration: 1
   - Interfaces: 1 Bus Powered 98mA
     Interface: 0
     - Alternate Setting 0, Endpoints: 3
     - Class Mass Storage, Transp. SCSI, Bulk only
     - Endpoint 1 Out Bulk MaxPacket 512
     - Endpoint 2 In Bulk MaxPacket 512
     - Endpoint 3 In Interrupt MaxPacket 64 Interval 8ms

AMC1>

2 fatload

fatload usb 0 ${loadaddr} u-boot.bin

Load U-Boot image from USB mass storage device into RAM

AMC1> fatload usb 0 ${loadaddr} u-boot.bin
reading u-boot.bin
379008 bytes read in 228 ms (1.6 MiB/s)
AMC1>

3 write to QSPI FLASH

sf probe
sf erase 0x0 0x70000
sf write ${loadaddr} 0x0 ${filesize}

Detect serial QSPI FLASH, erase boot sector and write new image

AMC1> sf probe
SF: Detected w25q64cv with page size 256 Bytes, erase size 4 KiB, total 8 MiB, m
apped at 30000000
AMC1> sf erase 0x0 0x70000
SF: 458752 bytes @ 0x0 Erased: OK
AMC1> sf write ${loadaddr} 0x0 ${filesize}
device 0 offset 0x0, size 0x5c880
SF: 379008 bytes @ 0x0 Written: OK
AMC1>

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4 Additional Tags

Serial FLASH mapping on AMC1
Serial FLASH programming via U-Boot on AMC1