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Ron Madrid5bb907a2009-01-22 15:05:24 -08001Sheldon Instruments SIMPC8313 Board
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3
41. 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
272. 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
403. 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
514. Downloading and Flashing Images
52
534.1 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
654.2 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
785 Notes
79
80 The console baudrate for SIMPC8313 is 115200bps.