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kernel/bcm2837-move-dt.patch

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Linux v4.13.3
2017-09-06 18:11:28 +00:00
From 3bfe25fa9f8a56c5c877c7fd854d89238787c6d8 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Wed, 26 Jul 2017 13:01:56 -0700
Subject: ARM: dts: bcm283x: Move the BCM2837 DT contents from arm64 to arm.
BCM2837 is somewhat unusual in that we build its DT on both arm32 and
arm64. Most devices are being run in arm32 mode.
Having the body of the DT for 2837 separate from 2835/6 has been a
source of pain, as we often need to make changes that span both
directories simultaneously (for example, the thermal changes for 4.13,
or anything that changes the name of a node referenced by '&' from
board files). Other changes are made more complicated than they need
to be, such as the SDHOST enabling, because we have to split a single
logical change into a 283[56] half and a 2837 half.
To fix this, make the stub board include file live in arm64 instead of
arm32, and keep all of BCM283x's contents in arm32. From here on, our
changes to DT contents can be submitted through a single tree.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
arch/arm/boot/dts/bcm2837-rpi-3-b.dts | 42 ++++++++++-
arch/arm/boot/dts/bcm2837.dtsi | 86 ++++++++++++++++++++++
arch/arm64/boot/dts/broadcom/bcm2835-rpi.dtsi | 1 -
arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts | 42 +----------
arch/arm64/boot/dts/broadcom/bcm2837.dtsi | 86 ----------------------
.../boot/dts/broadcom/bcm283x-rpi-smsc9514.dtsi | 1 -
.../boot/dts/broadcom/bcm283x-rpi-usb-host.dtsi | 1 -
arch/arm64/boot/dts/broadcom/bcm283x.dtsi | 1 -
8 files changed, 128 insertions(+), 132 deletions(-)
create mode 100644 arch/arm/boot/dts/bcm2837.dtsi
delete mode 120000 arch/arm64/boot/dts/broadcom/bcm2835-rpi.dtsi
delete mode 100644 arch/arm64/boot/dts/broadcom/bcm2837.dtsi
delete mode 120000 arch/arm64/boot/dts/broadcom/bcm283x-rpi-smsc9514.dtsi
delete mode 120000 arch/arm64/boot/dts/broadcom/bcm283x-rpi-usb-host.dtsi
delete mode 120000 arch/arm64/boot/dts/broadcom/bcm283x.dtsi
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
index c72a27d..972f14d 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
@@ -1 +1,41 @@
-#include "arm64/broadcom/bcm2837-rpi-3-b.dts"
+/dts-v1/;
+#include "bcm2837.dtsi"
+#include "bcm2835-rpi.dtsi"
+#include "bcm283x-rpi-smsc9514.dtsi"
+#include "bcm283x-rpi-usb-host.dtsi"
+
+/ {
+ compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
+ model = "Raspberry Pi 3 Model B";
+
+ memory {
+ reg = <0 0x40000000>;
+ };
+
+ leds {
+ act {
+ gpios = <&gpio 47 0>;
+ };
+ };
+};
+
+&uart1 {
+ status = "okay";
+};
+
+/* SDHCI is used to control the SDIO for wireless */
+&sdhci {
+ pinctrl-names = "default";
+ pinctrl-0 = <&emmc_gpio34>;
+ status = "okay";
+ bus-width = <4>;
+ non-removable;
+};
+
+/* SDHOST is used to drive the SD card */
+&sdhost {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdhost_gpio48>;
+ status = "okay";
+ bus-width = <4>;
+};
diff --git a/arch/arm/boot/dts/bcm2837.dtsi b/arch/arm/boot/dts/bcm2837.dtsi
new file mode 100644
index 0000000..2d5de6f0
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2837.dtsi
@@ -0,0 +1,86 @@
+#include "bcm283x.dtsi"
+
+/ {
+ compatible = "brcm,bcm2837";
+
+ soc {
+ ranges = <0x7e000000 0x3f000000 0x1000000>,
+ <0x40000000 0x40000000 0x00001000>;
+ dma-ranges = <0xc0000000 0x00000000 0x3f000000>;
+
+ local_intc: local_intc {
+ compatible = "brcm,bcm2836-l1-intc";
+ reg = <0x40000000 0x100>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&local_intc>;
+ };
+ };
+
+ timer {
+ compatible = "arm,armv7-timer";
+ interrupt-parent = <&local_intc>;
+ interrupts = <0>, // PHYS_SECURE_PPI
+ <1>, // PHYS_NONSECURE_PPI
+ <3>, // VIRT_PPI
+ <2>; // HYP_PPI
+ always-on;
+ };
+
+ cpus: cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0x0 0x000000d8>;
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <1>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0x0 0x000000e0>;
+ };
+
+ cpu2: cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <2>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0x0 0x000000e8>;
+ };
+
+ cpu3: cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <3>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0x0 0x000000f0>;
+ };
+ };
+};
+
+/* Make the BCM2835-style global interrupt controller be a child of the
+ * CPU-local interrupt controller.
+ */
+&intc {
+ compatible = "brcm,bcm2836-armctrl-ic";
+ reg = <0x7e00b200 0x200>;
+ interrupt-parent = <&local_intc>;
+ interrupts = <8>;
+};
+
+&cpu_thermal {
+ coefficients = <(-538) 412000>;
+};
+
+/* enable thermal sensor with the correct compatible property set */
+&thermal {
+ compatible = "brcm,bcm2837-thermal";
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/broadcom/bcm2835-rpi.dtsi b/arch/arm64/boot/dts/broadcom/bcm2835-rpi.dtsi
deleted file mode 120000
index 3937b77..0000000
--- a/arch/arm64/boot/dts/broadcom/bcm2835-rpi.dtsi
+++ /dev/null
@@ -1 +0,0 @@
-../../../../arm/boot/dts/bcm2835-rpi.dtsi
\ No newline at end of file
diff --git a/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
index 972f14d..699d340 100644
--- a/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
+++ b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
@@ -1,41 +1 @@
-/dts-v1/;
-#include "bcm2837.dtsi"
-#include "bcm2835-rpi.dtsi"
-#include "bcm283x-rpi-smsc9514.dtsi"
-#include "bcm283x-rpi-usb-host.dtsi"
-
-/ {
- compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
- model = "Raspberry Pi 3 Model B";
-
- memory {
- reg = <0 0x40000000>;
- };
-
- leds {
- act {
- gpios = <&gpio 47 0>;
- };
- };
-};
-
-&uart1 {
- status = "okay";
-};
-
-/* SDHCI is used to control the SDIO for wireless */
-&sdhci {
- pinctrl-names = "default";
- pinctrl-0 = <&emmc_gpio34>;
- status = "okay";
- bus-width = <4>;
- non-removable;
-};
-
-/* SDHOST is used to drive the SD card */
-&sdhost {
- pinctrl-names = "default";
- pinctrl-0 = <&sdhost_gpio48>;
- status = "okay";
- bus-width = <4>;
-};
+#include "arm/bcm2837-rpi-3-b.dts"
diff --git a/arch/arm64/boot/dts/broadcom/bcm2837.dtsi b/arch/arm64/boot/dts/broadcom/bcm2837.dtsi
deleted file mode 100644
index 2d5de6f0..0000000
--- a/arch/arm64/boot/dts/broadcom/bcm2837.dtsi
+++ /dev/null
@@ -1,86 +0,0 @@
-#include "bcm283x.dtsi"
-
-/ {
- compatible = "brcm,bcm2837";
-
- soc {
- ranges = <0x7e000000 0x3f000000 0x1000000>,
- <0x40000000 0x40000000 0x00001000>;
- dma-ranges = <0xc0000000 0x00000000 0x3f000000>;
-
- local_intc: local_intc {
- compatible = "brcm,bcm2836-l1-intc";
- reg = <0x40000000 0x100>;
- interrupt-controller;
- #interrupt-cells = <1>;
- interrupt-parent = <&local_intc>;
- };
- };
-
- timer {
- compatible = "arm,armv7-timer";
- interrupt-parent = <&local_intc>;
- interrupts = <0>, // PHYS_SECURE_PPI
- <1>, // PHYS_NONSECURE_PPI
- <3>, // VIRT_PPI
- <2>; // HYP_PPI
- always-on;
- };
-
- cpus: cpus {
- #address-cells = <1>;
- #size-cells = <0>;
-
- cpu0: cpu@0 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <0>;
- enable-method = "spin-table";
- cpu-release-addr = <0x0 0x000000d8>;
- };
-
- cpu1: cpu@1 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <1>;
- enable-method = "spin-table";
- cpu-release-addr = <0x0 0x000000e0>;
- };
-
- cpu2: cpu@2 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <2>;
- enable-method = "spin-table";
- cpu-release-addr = <0x0 0x000000e8>;
- };
-
- cpu3: cpu@3 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <3>;
- enable-method = "spin-table";
- cpu-release-addr = <0x0 0x000000f0>;
- };
- };
-};
-
-/* Make the BCM2835-style global interrupt controller be a child of the
- * CPU-local interrupt controller.
- */
-&intc {
- compatible = "brcm,bcm2836-armctrl-ic";
- reg = <0x7e00b200 0x200>;
- interrupt-parent = <&local_intc>;
- interrupts = <8>;
-};
-
-&cpu_thermal {
- coefficients = <(-538) 412000>;
-};
-
-/* enable thermal sensor with the correct compatible property set */
-&thermal {
- compatible = "brcm,bcm2837-thermal";
- status = "okay";
-};
diff --git a/arch/arm64/boot/dts/broadcom/bcm283x-rpi-smsc9514.dtsi b/arch/arm64/boot/dts/broadcom/bcm283x-rpi-smsc9514.dtsi
deleted file mode 120000
index dca7c05..0000000
--- a/arch/arm64/boot/dts/broadcom/bcm283x-rpi-smsc9514.dtsi
+++ /dev/null
@@ -1 +0,0 @@
-../../../../arm/boot/dts/bcm283x-rpi-smsc9514.dtsi
\ No newline at end of file
diff --git a/arch/arm64/boot/dts/broadcom/bcm283x-rpi-usb-host.dtsi b/arch/arm64/boot/dts/broadcom/bcm283x-rpi-usb-host.dtsi
deleted file mode 120000
index cbeebe3..0000000
--- a/arch/arm64/boot/dts/broadcom/bcm283x-rpi-usb-host.dtsi
+++ /dev/null
@@ -1 +0,0 @@
-../../../../arm/boot/dts/bcm283x-rpi-usb-host.dtsi
\ No newline at end of file
diff --git a/arch/arm64/boot/dts/broadcom/bcm283x.dtsi b/arch/arm64/boot/dts/broadcom/bcm283x.dtsi
deleted file mode 120000
index 5f54e4c..0000000
--- a/arch/arm64/boot/dts/broadcom/bcm283x.dtsi
+++ /dev/null
@@ -1 +0,0 @@
-../../../../arm/boot/dts/bcm283x.dtsi
\ No newline at end of file
--
cgit v1.1
From 4188ea2aeb6dd8f99ab77662f463e41bc464a704 Mon Sep 17 00:00:00 2001
From: Stefan Wahren <stefan.wahren@i2se.com>
Date: Sun, 30 Jul 2017 19:10:32 +0200
Subject: ARM: bcm283x: Define UART pinmuxing on board level
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>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
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";
};
--
cgit v1.1
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