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+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.