blob: b06dbe43f14a3db054c707f7486795606afebe82 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*
* Copyright (C) 2015 Robert Nelson <robertcnelson@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/dts-v1/;
/plugin/;
#include <dt-bindings/board/am335x-bbw-bbb-base.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/am33xx.h>
/ {
/*
* Helper to show loaded overlays under: /proc/device-tree/chosen/overlays/
*/
fragment@0 {
target-path="/";
__overlay__ {
chosen {
overlays {
BB-RTC-01-00A0 = __TIMESTAMP__;
};
};
};
};
/*
* Free up the pins used by the cape from the pinmux helpers.
*/
fragment@1 {
target = <&ocp>;
__overlay__ {
P8_26_pinmux { status = "disabled"; }; /* P8_26: gpmc_csn0.gpio1_29 */
P9_18_pinmux { status = "disabled"; }; /* P9_18: spi0_d1.i2c1_sda */
P9_17_pinmux { status = "disabled"; }; /* P9_17: spi0_cs0.i2c1_scl */
};
};
fragment@2 {
target-path="/";
__overlay__ {
aliases {
rtc0 = &extrtc;
rtc1 = "/ocp/rtc@44e3e000";
};
};
};
fragment@3 {
target = <&am33xx_pinmux>;
__overlay__ {
bb_gpio1_29_pins: pinmux_bb_gpio1_29_pins {
pinctrl-single,pins = <
BONE_P8_26 (PIN_INPUT | MUX_MODE7) /* P8_26: gpmc_csn0.gpio1_29 */
>;
};
bb_i2c1_pins: pinmux_bb_i2c1_pins {
pinctrl-single,pins = <
BONE_P9_18 (SLEWCTRL_SLOW | PIN_INPUT_PULLUP | MUX_MODE2) /* P9_18: spi0_d1.i2c1_sda */
BONE_P9_17 (SLEWCTRL_SLOW | PIN_INPUT_PULLUP | MUX_MODE2) /* P9_17: spi0_cs0.i2c1_scl */
>;
};
};
};
fragment@4 {
target-path="/";
__overlay__ {
gpio_keys {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <&bb_gpio1_29_pins>;
rtc_mfp@1 {
label = "rtc_mfp";
gpios = <&gpio1 29 GPIO_ACTIVE_HIGH>;
linux,code = <143>; /* System Wake Up */
gpio-key,wakeup;
};
};
};
};
fragment@5 {
target = <&i2c1>;
__overlay__ {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&bb_i2c1_pins>;
clock-frequency = <100000>;
#address-cells = <1>;
#size-cells = <0>;
extrtc: mcp7940x@68 {
compatible = "microchip,mcp7940x";
reg = <0x68>;
};
};
};
};
|
