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1 | Freescale MPC8315ERDB Board |
2 | ----------------------------------------- | |
3 | ||
4 | 1. Board Switches and Jumpers | |
5 | ||
6d0f6bcf | 6 | S3 is used to set CONFIG_SYS_RESET_SOURCE. |
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7 | |
8 | To boot the image at 0xFE000000 in NOR flash, use these DIP | |
be5a7190 | 9 | switch settings for S3 S4: |
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10 | |
11 | +------+ +------+ | |
12 | | | | **** | | |
13 | | **** | | | | |
14 | +------+ ON +------+ ON | |
15 | 4321 4321 | |
16 | (where the '*' indicates the position of the tab of the switch.) | |
17 | ||
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18 | To boot the image at the beginning of NAND flash, use these |
19 | DIP switch settings for S3 S4: | |
20 | ||
21 | +------+ +------+ | |
22 | | * | | *** | | |
23 | | *** | | * | | |
24 | +------+ ON +------+ ON | |
25 | 4321 4321 | |
26 | (where the '*' indicates the position of the tab of the switch.) | |
27 | ||
28 | When booting from NAND, use u-boot-nand.bin, not u-boot.bin. | |
29 | ||
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30 | 2. Memory Map |
31 | The memory map looks like this: | |
32 | ||
33 | 0x0000_0000 0x07ff_ffff DDR 128M | |
34 | 0x8000_0000 0x8fff_ffff PCI MEM 256M | |
35 | 0x9000_0000 0x9fff_ffff PCI_MMIO 256M | |
36 | 0xe000_0000 0xe00f_ffff IMMR 1M | |
37 | 0xe030_0000 0xe03f_ffff PCI IO 1M | |
38 | 0xe060_0000 0xe060_7fff NAND FLASH (CS1) 32K | |
39 | 0xfe00_0000 0xfe7f_ffff NOR FLASH (CS0) 8M | |
40 | ||
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41 | When booting from NAND, NAND flash is CS0 and NOR flash |
42 | is CS1. | |
43 | ||
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44 | 3. Definitions |
45 | ||
46 | 3.1 Explanation of NEW definitions in: | |
47 | ||
48 | include/configs/MPC8315ERDB.h | |
49 | ||
50 | CONFIG_MPC83xx MPC83xx family | |
51 | CONFIG_MPC831x MPC831x specific | |
52 | CONFIG_MPC8315 MPC8315 specific | |
53 | CONFIG_MPC8315ERDB MPC8315ERDB board specific | |
54 | ||
55 | 4. Compilation | |
56 | ||
57 | Assuming you're using BASH (or similar) as your shell: | |
58 | ||
59 | export CROSS_COMPILE=your-cross-compiler-prefix- | |
60 | make distclean | |
2e95004d | 61 | make MPC8315ERDB_config (or MPC8315ERDB_NAND_config for u-boot-nand.bin) |
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62 | make all |
63 | ||
64 | 5. Downloading and Flashing Images | |
65 | ||
66 | 5.1 Reflash U-boot Image using U-boot | |
67 | ||
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68 | NOR flash: |
69 | ||
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70 | tftp 40000 u-boot.bin |
71 | protect off all | |
72 | erase fe000000 fe1fffff | |
73 | ||
74 | cp.b 40000 fe000000 xxxx | |
75 | protect on all | |
76 | ||
77 | You have to supply the correct byte count with 'xxxx' | |
78 | from the TFTP result log. | |
79 | ||
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80 | NAND flash: |
81 | ||
82 | =>tftpboot $loadaddr <filename> | |
83 | =>nand erase 0 0x80000 | |
84 | =>nand write $loadaddr 0 0x80000 | |
85 | ||
86 | ...where 0x80000 is the filesize rounded up to | |
87 | the next 0x20000 increment. | |
88 | ||
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89 | 5.2 Downloading and Booting Linux Kernel |
90 | ||
91 | Ensure that all networking-related environment variables are set | |
92 | properly (including ipaddr, serverip, gatewayip (if needed), | |
93 | netmask, ethaddr, eth1addr, rootpath (if using NFS root), | |
94 | fdtfile, and bootfile). | |
95 | ||
96 | Then, do one of the following, depending on whether you | |
97 | want an NFS root or a ramdisk root: | |
98 | ||
99 | =>run nfsboot | |
100 | or | |
101 | =>run ramboot | |
102 | ||
103 | 6 Notes | |
104 | ||
8bd522ce | 105 | The console baudrate for MPC8315ERDB is 115200bps. |