diff options
Diffstat (limited to 'arch/sh/boards/mpc1211/led.c')
-rw-r--r-- | arch/sh/boards/mpc1211/led.c | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/arch/sh/boards/mpc1211/led.c b/arch/sh/boards/mpc1211/led.c deleted file mode 100644 index 8df1591823d6..000000000000 --- a/arch/sh/boards/mpc1211/led.c +++ /dev/null | |||
@@ -1,63 +0,0 @@ | |||
1 | /* | ||
2 | * linux/arch/sh/boards/mpc1211/led.c | ||
3 | * | ||
4 | * Copyright (C) 2001 Saito.K & Jeanne | ||
5 | * | ||
6 | * This file contains Interface MPC-1211 specific LED code. | ||
7 | */ | ||
8 | |||
9 | |||
10 | static void mach_led(int position, int value) | ||
11 | { | ||
12 | volatile unsigned char* p = (volatile unsigned char*)0xa2000000; | ||
13 | |||
14 | if (value) { | ||
15 | *p |= 1; | ||
16 | } else { | ||
17 | *p &= ~1; | ||
18 | } | ||
19 | } | ||
20 | |||
21 | #ifdef CONFIG_HEARTBEAT | ||
22 | |||
23 | #include <linux/sched.h> | ||
24 | |||
25 | /* Cycle the LED's in the clasic Knightrider/Sun pattern */ | ||
26 | void heartbeat_mpc1211(void) | ||
27 | { | ||
28 | static unsigned int cnt = 0, period = 0; | ||
29 | volatile unsigned char* p = (volatile unsigned char*)0xa2000000; | ||
30 | static unsigned bit = 0, up = 1; | ||
31 | |||
32 | cnt += 1; | ||
33 | if (cnt < period) { | ||
34 | return; | ||
35 | } | ||
36 | |||
37 | cnt = 0; | ||
38 | |||
39 | /* Go through the points (roughly!): | ||
40 | * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110 | ||
41 | */ | ||
42 | period = 110 - ( (300<<FSHIFT)/ | ||
43 | ((avenrun[0]/5) + (3<<FSHIFT)) ); | ||
44 | |||
45 | if (up) { | ||
46 | if (bit == 7) { | ||
47 | bit--; | ||
48 | up=0; | ||
49 | } else { | ||
50 | bit ++; | ||
51 | } | ||
52 | } else { | ||
53 | if (bit == 0) { | ||
54 | bit++; | ||
55 | up=1; | ||
56 | } else { | ||
57 | bit--; | ||
58 | } | ||
59 | } | ||
60 | *p = 1<<bit; | ||
61 | |||
62 | } | ||
63 | #endif /* CONFIG_HEARTBEAT */ | ||