| Heiko Schocher | 3f8dcb5 | 2008-11-20 09:57:47 +0100 | [diff] [blame] | 1 | Keymile kmeter1 Board |
| 2 | ----------------------------------------- |
| 3 | 1. Alternative Boot EEPROM |
| 4 | |
| 5 | Upon the kmeter1 startup the I2C_1 controller is used to fetch the boot |
| 6 | configuration from a serial EEPROM. During the development and debugging |
| 7 | phase it might be helpful to apply an alternative boot configuration in |
| 8 | a simple way. Therefore it is an alternative boot eeprom on the PIGGY, |
| 9 | which can be activated by setting the "ST" jumper on the PIGGY board. |
| 10 | |
| 11 | 2. Memory Map |
| 12 | |
| 13 | BaseAddr PortSz Size Device |
| 14 | ----------- ------ ----- ------ |
| 15 | 0x0000_0000 64 bit 256MB DDR |
| 16 | 0x8000_0000 8 bit 256KB GPIO/PIGGY on CS1 |
| 17 | 0xa000_0000 8 bit 256MB PAXE on CS3 |
| 18 | 0xe000_0000 2MB Int Mem Reg Space |
| 19 | 0xf000_0000 16 bit 256MB FLASH on CS0 |
| 20 | |
| 21 | |
| 22 | DDR-SDRAM: |
| 23 | The current realization is made with four 16-bits memory devices. |
| 24 | Mounting options have been foreseen for device architectures from |
| 25 | 4Mx16 to 512Mx16. The kmeter1 is equipped with four 32Mx16 devices |
| 26 | thus resulting in a total capacity of 256MBytes. |
| 27 | |
| 28 | 3. Compilation |
| 29 | |
| 30 | Assuming you're using BASH shell: |
| 31 | |
| 32 | export CROSS_COMPILE=your-cross-compile-prefix |
| 33 | cd u-boot |
| 34 | make distclean |
| 35 | make kmeter1_config |
| 36 | make |
| 37 | |
| 38 | 4. Downloading and Flashing Images |
| 39 | |
| 40 | 4.0 Download over serial line using Kermit: |
| 41 | |
| 42 | loadb |
| 43 | [Drop to kermit: |
| 44 | ^\c |
| 45 | send <u-boot-bin-image> |
| 46 | c |
| 47 | ] |
| 48 | |
| 49 | |
| 50 | Or via tftp: |
| 51 | |
| 52 | tftp 10000 u-boot.bin |
| 53 | => run load |
| Kim Phillips | b42cf5f | 2010-07-26 18:34:57 -0500 | [diff] [blame^] | 54 | Using UEC0 device |
| Heiko Schocher | 3f8dcb5 | 2008-11-20 09:57:47 +0100 | [diff] [blame] | 55 | TFTP from server 192.168.1.1; our IP address is 192.168.205.4 |
| 56 | Filename '/tftpboot/kmeter1/u-boot.bin'. |
| 57 | Load address: 0x200000 |
| 58 | Loading: ############## |
| 59 | done |
| 60 | Bytes transferred = 204204 (31dac hex) |
| 61 | => |
| 62 | |
| 63 | 4.1 Reflash U-boot Image using U-boot |
| 64 | |
| 65 | => run update |
| 66 | ..... done |
| 67 | Un-Protected 5 sectors |
| 68 | |
| 69 | ..... done |
| 70 | Erased 5 sectors |
| 71 | Copy to Flash... done |
| 72 | ..... done |
| 73 | Protected 5 sectors |
| 74 | Total of 204204 bytes were the same |
| 75 | Saving Environment to Flash... |
| 76 | . done |
| 77 | Un-Protected 1 sectors |
| 78 | . done |
| 79 | Un-Protected 1 sectors |
| 80 | Erasing Flash... |
| 81 | . done |
| 82 | Erased 1 sectors |
| 83 | Writing to Flash... done |
| 84 | . done |
| 85 | Protected 1 sectors |
| 86 | . done |
| 87 | Protected 1 sectors |
| 88 | => |
| 89 | |
| 90 | 5. Notes |
| 91 | 1) The console baudrate for kmeter1 is 115200bps. |