diff options
Diffstat (limited to 'Documentation/arm/SA1100/Brutus')
-rw-r--r-- | Documentation/arm/SA1100/Brutus | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/Documentation/arm/SA1100/Brutus b/Documentation/arm/SA1100/Brutus new file mode 100644 index 000000000000..2254c8f0b326 --- /dev/null +++ b/Documentation/arm/SA1100/Brutus | |||
@@ -0,0 +1,66 @@ | |||
1 | Brutus is an evaluation platform for the SA1100 manufactured by Intel. | ||
2 | For more details, see: | ||
3 | |||
4 | http://developer.intel.com/design/strong/applnots/sa1100lx/getstart.htm | ||
5 | |||
6 | To compile for Brutus, you must issue the following commands: | ||
7 | |||
8 | make brutus_config | ||
9 | make config | ||
10 | [accept all the defaults] | ||
11 | make zImage | ||
12 | |||
13 | The resulting kernel will end up in linux/arch/arm/boot/zImage. This file | ||
14 | must be loaded at 0xc0008000 in Brutus's memory and execution started at | ||
15 | 0xc0008000 as well with the value of registers r0 = 0 and r1 = 16 upon | ||
16 | entry. | ||
17 | |||
18 | But prior to execute the kernel, a ramdisk image must also be loaded in | ||
19 | memory. Use memory address 0xd8000000 for this. Note that the file | ||
20 | containing the (compressed) ramdisk image must not exceed 4 MB. | ||
21 | |||
22 | Typically, you'll need angelboot to load the kernel. | ||
23 | The following angelboot.opt file should be used: | ||
24 | |||
25 | ----- begin angelboot.opt ----- | ||
26 | base 0xc0008000 | ||
27 | entry 0xc0008000 | ||
28 | r0 0x00000000 | ||
29 | r1 0x00000010 | ||
30 | device /dev/ttyS0 | ||
31 | options "9600 8N1" | ||
32 | baud 115200 | ||
33 | otherfile ramdisk_img.gz | ||
34 | otherbase 0xd8000000 | ||
35 | ----- end angelboot.opt ----- | ||
36 | |||
37 | Then load the kernel and ramdisk with: | ||
38 | |||
39 | angelboot -f angelboot.opt zImage | ||
40 | |||
41 | The first Brutus serial port (assumed to be linked to /dev/ttyS0 on your | ||
42 | host PC) is used by angel to load the kernel and ramdisk image. The serial | ||
43 | console is provided through the second Brutus serial port. To access it, | ||
44 | you may use minicom configured with /dev/ttyS1, 9600 baud, 8N1, no flow | ||
45 | control. | ||
46 | |||
47 | Currently supported: | ||
48 | - RS232 serial ports | ||
49 | - audio output | ||
50 | - LCD screen | ||
51 | - keyboard | ||
52 | |||
53 | The actual Brutus support may not be complete without extra patches. | ||
54 | If such patches exist, they should be found from | ||
55 | ftp.netwinder.org/users/n/nico. | ||
56 | |||
57 | A full PCMCIA support is still missing, although it's possible to hack | ||
58 | some drivers in order to drive already inserted cards at boot time with | ||
59 | little modifications. | ||
60 | |||
61 | Any contribution is welcome. | ||
62 | |||
63 | Please send patches to nico@cam.org | ||
64 | |||
65 | Have Fun ! | ||
66 | |||