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diff --git a/doc/README.kmeter1 b/doc/README.kmeter1 new file mode 100644 index 0000000..44ebb7a --- /dev/null +++ b/doc/README.kmeter1 @@ -0,0 +1,91 @@ +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 FSL 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. |