mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-15 17:28:15 +00:00
81 lines
2 KiB
Text
81 lines
2 KiB
Text
|
Sheldon Instruments SIMPC8313 Board
|
||
|
|
-----------------------------------------
|
||
|
|
|
||
|
|
1. Board Switches and Jumpers
|
||
|
|
|
||
|
|
S2 is used to set CFG_RESET_SOURCE.
|
||
|
|
|
||
|
|
To boot the image in Large page NAND flash, use these DIP
|
||
|
|
switch settings for S2:
|
||
|
|
|
||
|
|
+----------+ ON
|
||
|
|
| * * **** |
|
||
|
|
| * * |
|
||
|
|
+----------+
|
||
|
|
12345678
|
||
|
|
|
||
|
|
To boot the image in Small page NAND flash, use these DIP
|
||
|
|
switch settings for S2:
|
||
|
|
|
||
|
|
+----------+ ON
|
||
|
|
| *** **** |
|
||
|
|
| * |
|
||
|
|
+----------+
|
||
|
|
12345678
|
||
|
|
(where the '*' indicates the position of the tab of the switch.)
|
||
|
|
|
||
|
|
2. Memory Map
|
||
|
|
The memory map looks like this:
|
||
|
|
|
||
|
|
0x0000_0000 0x1fff_ffff DDR 512M
|
||
|
|
0x8000_0000 0x8fff_ffff PCI MEM 256M
|
||
|
|
0x9000_0000 0x9fff_ffff PCI_MMIO 256M
|
||
|
|
0xe000_0000 0xe00f_ffff IMMR 1M
|
||
|
|
0xe200_0000 0xe20f_ffff PCI IO 16M
|
||
|
|
0xe280_0000 0xe280_7fff NAND FLASH (CS0) 32K
|
||
|
|
or
|
||
|
|
0xe280_0000 0xe281_ffff NAND FLASH (CS0) 128K
|
||
|
|
0xff00_0000 0xff00_7fff FPGA (CS1) 1M
|
||
|
|
|
||
|
|
3. Compilation
|
||
|
|
|
||
|
|
Assuming you're using BASH (or similar) as your shell:
|
||
|
|
|
||
|
|
export CROSS_COMPILE=your-cross-compiler-prefix-
|
||
|
|
make distclean
|
||
|
|
make SIMPC8313_LP_config
|
||
|
|
(or make SIMPC8313_SP_config, depending on the page size
|
||
|
|
of your NAND flash)
|
||
|
|
make
|
||
|
|
|
||
|
|
4. Downloading and Flashing Images
|
||
|
|
|
||
|
|
4.1 Reflash U-boot Image using U-boot
|
||
|
|
|
||
|
|
=>run update_uboot
|
||
|
|
|
||
|
|
You may want to try
|
||
|
|
=>tftp $loadaddr $uboot
|
||
|
|
first, to make sure that the TFTP load will succeed before it
|
||
|
|
goes ahead and wipes out your current firmware. And of course,
|
||
|
|
if the new u-boot doesn't boot, you can plug the board into
|
||
|
|
your PCI slot and with the supplied driver and sample app
|
||
|
|
you can reburn a working u-boot.
|
||
|
|
|
||
|
|
4.2 Downloading and Booting Linux Kernel
|
||
|
|
|
||
|
|
Ensure that all networking-related environment variables are set
|
||
|
|
properly (including ipaddr, serverip, gatewayip (if needed),
|
||
|
|
netmask, ethaddr, eth1addr, fdtfile, and bootfile).
|
||
|
|
|
||
|
|
=>tftp $loadaddr uImage
|
||
|
|
=>nand write $loadaddr kernel $filesize
|
||
|
|
=>tftp $loadaddr $fdtfile
|
||
|
|
=>nand write $loadaddr 7e0000 1800
|
||
|
|
|
||
|
|
=>boot
|
||
|
|
|
||
|
|
5 Notes
|
||
|
|
|
||
|
|
The console baudrate for SIMPC8313 is 115200bps.
|