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
|
From 7c23c772289fa31960b9e6969499aa93c92d842b Mon Sep 17 00:00:00 2001
From: Adrien RICCIARDI <RICCIARDI-Adrien@users.noreply.github.com>
Date: Fri, 22 Mar 2019 11:35:30 +0100
Subject: [PATCH] overlays: sdio: Added 4-bit support on GPIOs 34-39.
(#2903)
---
arch/arm/boot/dts/overlays/README | 3 +++
arch/arm/boot/dts/overlays/sdio-overlay.dts | 9 +++++++++
2 files changed, 12 insertions(+)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -1785,6 +1785,9 @@ Params: sdio_overclock SDIO Clo
gpios_34_37 Select GPIOs 34-37 for 1-bit mode. Must be used
with bus_width=1.
+ gpios_34_39 Select GPIOs 34-39 for 4-bit mode. Must be used
+ with bus_width=4 (the default).
+
Name: sdio-1bit
Info: This overlay is now deprecated. Use
--- a/arch/arm/boot/dts/overlays/sdio-overlay.dts
+++ b/arch/arm/boot/dts/overlays/sdio-overlay.dts
@@ -64,6 +64,14 @@
};
};
+ fragment@5 {
+ target = <&sdio_ovl_pins>;
+ __dormant__ {
+ brcm,pins = <34 35 36 37 38 39>;
+ brcm,pull = <0 2 2 2 2 2>;
+ };
+ };
+
fragment@6 {
target-path = "/aliases";
__overlay__ {
@@ -77,5 +85,6 @@
sdio_overclock = <&sdio_ovl>,"brcm,overclock-50:0";
gpios_22_25 = <0>,"=3";
gpios_34_37 = <0>,"=4";
+ gpios_34_39 = <0>,"=5";
};
};
|
