1 =======================================
2 Kernel driver for Mellanox systems LEDs
3 =======================================
4
5 Provide system LED support for the nex Mellano
6 "msx6710", "msx6720", "msb7700", "msn2700", "m
7 "msn2410", "msb7800", "msn2740", "msn2100".
8
9 Description
10 -----------
11 Driver provides the following LEDs for the sys
12 "msb7700", "msn2700", "msx1410", "msn2410", "m
13
14 - mlxcpld:fan1:green
15 - mlxcpld:fan1:red
16 - mlxcpld:fan2:green
17 - mlxcpld:fan2:red
18 - mlxcpld:fan3:green
19 - mlxcpld:fan3:red
20 - mlxcpld:fan4:green
21 - mlxcpld:fan4:red
22 - mlxcpld:psu:green
23 - mlxcpld:psu:red
24 - mlxcpld:status:green
25 - mlxcpld:status:red
26
27 "status"
28 - CPLD reg offset: 0x20
29 - Bits [3:0]
30
31 "psu"
32 - CPLD reg offset: 0x20
33 - Bits [7:4]
34
35 "fan1"
36 - CPLD reg offset: 0x21
37 - Bits [3:0]
38
39 "fan2"
40 - CPLD reg offset: 0x21
41 - Bits [7:4]
42
43 "fan3"
44 - CPLD reg offset: 0x22
45 - Bits [3:0]
46
47 "fan4"
48 - CPLD reg offset: 0x22
49 - Bits [7:4]
50
51 Color mask for all the above LEDs:
52
53 [bit3,bit2,bit1,bit0] or
54 [bit7,bit6,bit5,bit4]:
55
56 - [0,0,0,0] = LED OFF
57 - [0,1,0,1] = Red static ON
58 - [1,1,0,1] = Green static ON
59 - [0,1,1,0] = Red blink 3Hz
60 - [1,1,1,0] = Green blink 3Hz
61 - [0,1,1,1] = Red blink 6Hz
62 - [1,1,1,1] = Green blink 6Hz
63
64 Driver provides the following LEDs for the sys
65
66 - mlxcpld:fan:green
67 - mlxcpld:fan:red
68 - mlxcpld:psu1:green
69 - mlxcpld:psu1:red
70 - mlxcpld:psu2:green
71 - mlxcpld:psu2:red
72 - mlxcpld:status:green
73 - mlxcpld:status:red
74 - mlxcpld:uid:blue
75
76 "status"
77 - CPLD reg offset: 0x20
78 - Bits [3:0]
79
80 "fan"
81 - CPLD reg offset: 0x21
82 - Bits [3:0]
83
84 "psu1"
85 - CPLD reg offset: 0x23
86 - Bits [3:0]
87
88 "psu2"
89 - CPLD reg offset: 0x23
90 - Bits [7:4]
91
92 "uid"
93 - CPLD reg offset: 0x24
94 - Bits [3:0]
95
96 Color mask for all the above LEDs, excepted u
97
98 [bit3,bit2,bit1,bit0] or
99 [bit7,bit6,bit5,bit4]:
100
101 - [0,0,0,0] = LED OFF
102 - [0,1,0,1] = Red static ON
103 - [1,1,0,1] = Green static ON
104 - [0,1,1,0] = Red blink 3Hz
105 - [1,1,1,0] = Green blink 3Hz
106 - [0,1,1,1] = Red blink 6Hz
107 - [1,1,1,1] = Green blink 6Hz
108
109 Color mask for uid LED:
110 [bit3,bit2,bit1,bit0]:
111
112 - [0,0,0,0] = LED OFF
113 - [1,1,0,1] = Blue static ON
114 - [1,1,1,0] = Blue blink 3Hz
115 - [1,1,1,1] = Blue blink 6Hz
116
117 Driver supports HW blinking at 3Hz and 6Hz fre
118 For 3Hz duty cycle is about 167 msec, for 6Hz
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