projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 5bb907a4 RM |
1 | Sheldon Instruments SIMPC8313 Board |
| 2 | ----------------------------------------- | |
| 3 | ||
| 4 | 1. Board Switches and Jumpers | |
| 5 | ||
| 6 | S2 is used to set CFG_RESET_SOURCE. | |
| 7 | ||
| 8 | To boot the image in Large page NAND flash, use these DIP | |
| 9 | switch settings for S2: | |
| 10 | ||
| 11 | +----------+ ON | |
| 12 | | * * **** | | |
| 13 | | * * | | |
| 14 | +----------+ | |
| 15 | 12345678 | |
| 16 | ||
| 17 | To boot the image in Small page NAND flash, use these DIP | |
| 18 | switch settings for S2: | |
| 19 | ||
| 20 | +----------+ ON | |
| 21 | | *** **** | | |
| 22 | | * | | |
| 23 | +----------+ | |
| 24 | 12345678 | |
| 25 | (where the '*' indicates the position of the tab of the switch.) | |
| 26 | ||
| 27 | 2. Memory Map | |
| 28 | The memory map looks like this: | |
| 29 | ||
| 30 | 0x0000_0000 0x1fff_ffff DDR 512M | |
| 31 | 0x8000_0000 0x8fff_ffff PCI MEM 256M | |
| 32 | 0x9000_0000 0x9fff_ffff PCI_MMIO 256M | |
| 33 | 0xe000_0000 0xe00f_ffff IMMR 1M | |
| 34 | 0xe200_0000 0xe20f_ffff PCI IO 16M | |
| 35 | 0xe280_0000 0xe280_7fff NAND FLASH (CS0) 32K | |
| 36 | or | |
| 37 | 0xe280_0000 0xe281_ffff NAND FLASH (CS0) 128K | |
| 38 | 0xff00_0000 0xff00_7fff FPGA (CS1) 1M | |
| 39 | ||
| 40 | 3. Compilation | |
| 41 | ||
| 42 | Assuming you're using BASH (or similar) as your shell: | |
| 43 | ||
| 44 | export CROSS_COMPILE=your-cross-compiler-prefix- | |
| 45 | make distclean | |
| 46 | make SIMPC8313_LP_config | |
| 47 | (or make SIMPC8313_SP_config, depending on the page size | |
| 48 | of your NAND flash) | |
| 49 | make | |
| 50 | ||
| 51 | 4. Downloading and Flashing Images | |
| 52 | ||
| 53 | 4.1 Reflash U-boot Image using U-boot | |
| 54 | ||
| 55 | =>run update_uboot | |
| 56 | ||
| 57 | You may want to try | |
| 58 | =>tftp $loadaddr $uboot | |
| 59 | first, to make sure that the TFTP load will succeed before it | |
| 60 | goes ahead and wipes out your current firmware. And of course, | |
| 61 | if the new u-boot doesn't boot, you can plug the board into | |
| 62 | your PCI slot and with the supplied driver and sample app | |
| 63 | you can reburn a working u-boot. | |
| 64 | ||
| 65 | 4.2 Downloading and Booting Linux Kernel | |
| 66 | ||
| 67 | Ensure that all networking-related environment variables are set | |
| 68 | properly (including ipaddr, serverip, gatewayip (if needed), | |
| 69 | netmask, ethaddr, eth1addr, fdtfile, and bootfile). | |
| 70 | ||
| 71 | =>tftp $loadaddr uImage | |
| 72 | =>nand write $loadaddr kernel $filesize | |
| 73 | =>tftp $loadaddr $fdtfile | |
| 74 | =>nand write $loadaddr 7e0000 1800 | |
| 75 | ||
| 76 | =>boot | |
| 77 | ||
| 78 | 5 Notes | |
| 79 | ||
| 80 | The console baudrate for SIMPC8313 is 115200bps. |