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When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
Keymile kmeter1 Board
-----------------------------------------
1. Alternative Boot EEPROM
Upon the kmeter1 startup the I2C_1 controller is used to fetch the boot
configuration from a serial EEPROM. During the development and debugging
phase it might be helpful to apply an alternative boot configuration in
a simple way. Therefore it is an alternative boot eeprom on the PIGGY,
which can be activated by setting the "ST" jumper on the PIGGY board.
2. Memory Map
BaseAddr PortSz Size Device
----------- ------ ----- ------
0x0000_0000 64 bit 256MB DDR
0x8000_0000 8 bit 256KB GPIO/PIGGY on CS1
0xa000_0000 8 bit 256MB PAXE on CS3
0xe000_0000 2MB Int Mem Reg Space
0xf000_0000 16 bit 256MB FLASH on CS0
DDR-SDRAM:
The current realization is made with four 16-bits memory devices.
Mounting options have been foreseen for device architectures from
4Mx16 to 512Mx16. The kmeter1 is equipped with four 32Mx16 devices
thus resulting in a total capacity of 256MBytes.
3. Compilation
Assuming you're using BASH shell:
export CROSS_COMPILE=your-cross-compile-prefix
cd u-boot
make distclean
make kmeter1_config
make
4. Downloading and Flashing Images
4.0 Download over serial line using Kermit:
loadb
[Drop to kermit:
^\c
send <u-boot-bin-image>
c
]
Or via tftp:
tftp 10000 u-boot.bin
=> run load
Using UEC0 device
TFTP from server 192.168.1.1; our IP address is 192.168.205.4
Filename '/tftpboot/kmeter1/u-boot.bin'.
Load address: 0x200000
Loading: ##############
done
Bytes transferred = 204204 (31dac hex)
=>
4.1 Reflash U-Boot Image using U-Boot
=> run update
..... done
Un-Protected 5 sectors
..... done
Erased 5 sectors
Copy to Flash... done
..... done
Protected 5 sectors
Total of 204204 bytes were the same
Saving Environment to Flash...
. done
Un-Protected 1 sectors
. done
Un-Protected 1 sectors
Erasing Flash...
. done
Erased 1 sectors
Writing to Flash... done
. done
Protected 1 sectors
. done
Protected 1 sectors
=>
5. Notes
1) The console baudrate for kmeter1 is 115200bps.