diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm/arch-ebsa285/system.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-arm/arch-ebsa285/system.h')
-rw-r--r-- | include/asm-arm/arch-ebsa285/system.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ebsa285/system.h b/include/asm-arm/arch-ebsa285/system.h new file mode 100644 index 000000000000..bf91c695c4b5 --- /dev/null +++ b/include/asm-arm/arch-ebsa285/system.h | |||
@@ -0,0 +1,69 @@ | |||
1 | /* | ||
2 | * linux/include/asm-arm/arch-ebsa285/system.h | ||
3 | * | ||
4 | * Copyright (C) 1996-1999 Russell King. | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 as | ||
8 | * published by the Free Software Foundation. | ||
9 | */ | ||
10 | #include <asm/hardware/dec21285.h> | ||
11 | #include <asm/io.h> | ||
12 | #include <asm/hardware.h> | ||
13 | #include <asm/leds.h> | ||
14 | #include <asm/mach-types.h> | ||
15 | |||
16 | static inline void arch_idle(void) | ||
17 | { | ||
18 | cpu_do_idle(); | ||
19 | } | ||
20 | |||
21 | static inline void arch_reset(char mode) | ||
22 | { | ||
23 | if (mode == 's') { | ||
24 | /* | ||
25 | * Jump into the ROM | ||
26 | */ | ||
27 | cpu_reset(0x41000000); | ||
28 | } else { | ||
29 | if (machine_is_netwinder()) { | ||
30 | /* open up the SuperIO chip | ||
31 | */ | ||
32 | outb(0x87, 0x370); | ||
33 | outb(0x87, 0x370); | ||
34 | |||
35 | /* aux function group 1 (logical device 7) | ||
36 | */ | ||
37 | outb(0x07, 0x370); | ||
38 | outb(0x07, 0x371); | ||
39 | |||
40 | /* set GP16 for WD-TIMER output | ||
41 | */ | ||
42 | outb(0xe6, 0x370); | ||
43 | outb(0x00, 0x371); | ||
44 | |||
45 | /* set a RED LED and toggle WD_TIMER for rebooting | ||
46 | */ | ||
47 | outb(0xc4, 0x338); | ||
48 | } else { | ||
49 | /* | ||
50 | * Force the watchdog to do a CPU reset. | ||
51 | * | ||
52 | * After making sure that the watchdog is disabled | ||
53 | * (so we can change the timer registers) we first | ||
54 | * enable the timer to autoreload itself. Next, the | ||
55 | * timer interval is set really short and any | ||
56 | * current interrupt request is cleared (so we can | ||
57 | * see an edge transition). Finally, TIMER4 is | ||
58 | * enabled as the watchdog. | ||
59 | */ | ||
60 | *CSR_SA110_CNTL &= ~(1 << 13); | ||
61 | *CSR_TIMER4_CNTL = TIMER_CNTL_ENABLE | | ||
62 | TIMER_CNTL_AUTORELOAD | | ||
63 | TIMER_CNTL_DIV16; | ||
64 | *CSR_TIMER4_LOAD = 0x2; | ||
65 | *CSR_TIMER4_CLR = 0; | ||
66 | *CSR_SA110_CNTL |= (1 << 13); | ||
67 | } | ||
68 | } | ||
69 | } | ||