From: Stefan Wahren <stefan.wahren@i2se.com>
To: Eric Anholt <eric@anholt.net>, Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>
Cc: Stefan Wahren <stefan.wahren@i2se.com>,
devicetree@vger.kernel.org,
Florian Fainelli <f.fainelli@gmail.com>,
Scott Branden <sbranden@broadcom.com>,
linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
Gerd Hoffmann <kraxel@redhat.com>
Subject: [PATCH 1/3] ARM: bcm283x: Define UART pinmuxing on board level
Date: Thu, 20 Jul 2017 21:37:07 +0200 [thread overview]
Message-ID: <1500579429-9101-2-git-send-email-stefan.wahren@i2se.com> (raw)
In-Reply-To: <1500579429-9101-1-git-send-email-stefan.wahren@i2se.com>
Until RPI 3 and Zero W the pl011 (uart0) was always on pin 14/15. So in
order to take care of them and other boards in the future,
we need to define UART pinmuxing on board level.
This work based on Eric Anholt's patch "ARM: bcm2385: Don't force pl011
onto pins 14/15." and Fabian Vogt's patch "ARM64: dts: bcm2837: assign
uart0 to BT and uart1 to pin headers".
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
arch/arm/boot/dts/bcm2835-rpi-a-plus.dts | 6 ++++++
arch/arm/boot/dts/bcm2835-rpi-a.dts | 6 ++++++
arch/arm/boot/dts/bcm2835-rpi-b-plus.dts | 6 ++++++
arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts | 6 ++++++
arch/arm/boot/dts/bcm2835-rpi-b.dts | 6 ++++++
arch/arm/boot/dts/bcm2835-rpi-zero.dts | 6 ++++++
arch/arm/boot/dts/bcm2835-rpi.dtsi | 2 +-
arch/arm/boot/dts/bcm2836-rpi-2-b.dts | 6 ++++++
arch/arm/boot/dts/bcm2837-rpi-3-b.dts | 10 ++++++++++
9 files changed, 53 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
index d070454..9f86649 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
@@ -99,3 +99,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-a.dts b/arch/arm/boot/dts/bcm2835-rpi-a.dts
index 46d078e..4b1af06 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-a.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-a.dts
@@ -94,3 +94,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
index 432088e..a846f1e 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
@@ -101,3 +101,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
index 4133bc2..e860964 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
@@ -94,3 +94,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts
index 4d56fe3..5d77f3f 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts
@@ -89,3 +89,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero.dts b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
index 79a20d5..7036240 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-zero.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
@@ -103,3 +103,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index e55b362..e36c392 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -39,7 +39,7 @@
};
alt0: alt0 {
- brcm,pins = <4 5 7 8 9 10 11 14 15>;
+ brcm,pins = <4 5 7 8 9 10 11>;
brcm,function = <BCM2835_FSEL_ALT0>;
};
};
diff --git a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
index bf19e8c..e8de414 100644
--- a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
+++ b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
@@ -39,3 +39,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
index 972f14d..20725ca 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
@@ -19,7 +19,17 @@
};
};
+/* uart0 communicates with the BT module */
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
+ status = "okay";
+};
+
+/* uart1 is mapped to the pin header */
&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_gpio14>;
status = "okay";
};
--
2.7.4
next prev parent reply other threads:[~2017-07-20 19:37 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-20 19:37 [PATCH 0/3] ARM: bcm283x: Raspberry Pi Zero W support Stefan Wahren
2017-07-20 19:37 ` Stefan Wahren [this message]
[not found] ` <1500579429-9101-1-git-send-email-stefan.wahren-eS4NqCHxEME@public.gmane.org>
2017-07-20 19:37 ` [PATCH 2/3] dt-bindings: bcm: Add Raspberry Pi Zero W Stefan Wahren
[not found] ` <1500579429-9101-3-git-send-email-stefan.wahren-eS4NqCHxEME@public.gmane.org>
2017-07-24 20:18 ` Rob Herring
2017-07-20 19:37 ` [PATCH 3/3] ARM: dts: bcm2835: " Stefan Wahren
[not found] ` <1500579429-9101-4-git-send-email-stefan.wahren-eS4NqCHxEME@public.gmane.org>
2017-07-26 20:09 ` Eric Anholt
[not found] ` <87vamfx8nx.fsf-omZaPlIz5HhaEpDpdNBo/KxOck334EZe@public.gmane.org>
2017-07-27 11:35 ` Stefan Wahren
[not found] ` <1bc16f65-7872-d554-d29b-d9cd746c28bd-eS4NqCHxEME@public.gmane.org>
2017-07-27 18:41 ` Stefan Wahren
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