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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
From 747a71aefc4990f9db830f18c41e0a52b0d7b4e0 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Mon, 15 Jul 2019 10:39:05 +0100
Subject: [PATCH 703/773] overlays: Add PCF2129 RTC
Add support for the PCF2129 RTC to i2c-rtc and i2c-rtc-gpio overlays.
Also add rv3028 to i2c-rtc-gpio (it was missed previously), and don't
attempt to set an alternate address for the PCF2127.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
arch/arm/boot/dts/overlays/README | 11 ++++-
.../dts/overlays/i2c-rtc-gpio-overlay.dts | 41 +++++++++++++++++--
.../arm/boot/dts/overlays/i2c-rtc-overlay.dts | 19 ++++++++-
3 files changed, 64 insertions(+), 7 deletions(-)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -1022,6 +1022,8 @@ Params: abx80x Select o
pcf2127 Select the PCF2127 device
+ pcf2129 Select the PCF2129 device
+
pcf8523 Select the PCF8523 device
pcf8563 Select the PCF8563 device
@@ -1067,10 +1069,14 @@ Params: abx80x Select o
pcf2127 Select the PCF2127 device
+ pcf2129 Select the PCF2129 device
+
pcf8523 Select the PCF8523 device
pcf8563 Select the PCF8563 device
+ rv3028 Select the Micro Crystal RV3028 device
+
addr Sets the address for the RTC. Note that the
device must be configured to use the specified
address.
@@ -1079,11 +1085,14 @@ Params: abx80x Select o
"schottky" (ABx80x only)
trickle-resistor-ohms Resistor value for trickle charge (DS1339,
- ABx80x)
+ ABx80x, RV3028)
wakeup-source Specify that the RTC can be used as a wakeup
source
+ backup-switchover-mode Backup power supply switch mode. Must be 0 for
+ off or 1 for Vdd < VBackup (RV3028 only)
+
i2c_gpio_sda GPIO used for I2C data (default "23")
i2c_gpio_scl GPIO used for I2C clock (default "24")
--- a/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
+++ b/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
@@ -121,7 +121,7 @@
#size-cells = <0>;
status = "okay";
- pcf2127: pcf2127@51 {
+ pcf2127@51 {
compatible = "nxp,pcf2127";
reg = <0x51>;
status = "okay";
@@ -174,6 +174,36 @@
};
};
+ fragment@11 {
+ target = <&i2c_gpio>;
+ __dormant__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ rv3028: rv3028@52 {
+ compatible = "microcrystal,rv3028";
+ reg = <0x52>;
+ status = "okay";
+ };
+ };
+ };
+
+ fragment@12 {
+ target = <&i2c_gpio>;
+ __dormant__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ pcf2129@51 {
+ compatible = "nxp,pcf2129";
+ reg = <0x51>;
+ status = "okay";
+ };
+ };
+ };
+
__overrides__ {
abx80x = <0>,"+1";
ds1307 = <0>,"+2";
@@ -185,6 +215,8 @@
pcf8523 = <0>,"+8";
pcf8563 = <0>,"+9";
m41t62 = <0>,"+10";
+ rv3028 = <0>,"+11";
+ pcf2129 = <0>,"+12";
addr = <&abx80x>, "reg:0",
<&ds1307>, "reg:0",
@@ -192,18 +224,19 @@
<&ds3231>, "reg:0",
<&mcp7940x>, "reg:0",
<&mcp7941x>, "reg:0",
- <&pcf2127>, "reg:0",
<&pcf8523>, "reg:0",
<&pcf8563>, "reg:0",
<&m41t62>, "reg:0";
trickle-diode-type = <&abx80x>,"abracon,tc-diode";
trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
- <&abx80x>,"abracon,tc-resistor";
+ <&abx80x>,"abracon,tc-resistor",
+ <&rv3028>,"trickle-resistor-ohms:0";
+ backup-switchover-mode = <&rv3028>,"backup-switchover-mode:0";
wakeup-source = <&ds1339>,"wakeup-source?",
<&ds3231>,"wakeup-source?",
<&mcp7940x>,"wakeup-source?",
- <&mcp7941x>,"wakeup-source?";
+ <&mcp7941x>,"wakeup-source?";
i2c_gpio_sda = <&i2c_gpio>,"gpios:4";
i2c_gpio_scl = <&i2c_gpio>,"gpios:16";
i2c_gpio_delay_us = <&i2c_gpio>,"i2c-gpio,delay-us:0";
--- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
+++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
@@ -105,7 +105,7 @@
#size-cells = <0>;
status = "okay";
- pcf2127: pcf2127@51 {
+ pcf2127@51 {
compatible = "nxp,pcf2127";
reg = <0x51>;
status = "okay";
@@ -173,6 +173,21 @@
};
};
+ fragment@11 {
+ target = <&i2c_arm>;
+ __dormant__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ pcf2129@51 {
+ compatible = "nxp,pcf2129";
+ reg = <0x51>;
+ status = "okay";
+ };
+ };
+ };
+
__overrides__ {
abx80x = <0>,"+0";
ds1307 = <0>,"+1";
@@ -185,6 +200,7 @@
pcf8563 = <0>,"+8";
m41t62 = <0>,"+9";
rv3028 = <0>,"+10";
+ pcf2129 = <0>,"+11";
addr = <&abx80x>, "reg:0",
<&ds1307>, "reg:0",
@@ -192,7 +208,6 @@
<&ds3231>, "reg:0",
<&mcp7940x>, "reg:0",
<&mcp7941x>, "reg:0",
- <&pcf2127>, "reg:0",
<&pcf8523>, "reg:0",
<&pcf8563>, "reg:0",
<&m41t62>, "reg:0";
|
