From: Andrei Gherzan <and...@gherzan.ro>

This follows a similar change in kernel[1]. The change moves
configuration that was not applicable for all bcm2835/6/7/8 out of
bcm283x.dtsi. The new file is bcm2835-common.dtsi and contains
conifguration that is common for bcm2835/6/7 (not bcm2838).

[1] 
https://github.com/raspberrypi/linux/commit/769a7330aa5bebcc98b1ff12ecb767db4e5c644d#diff-5979fba23a5bab2cf66dde09db872dfc

Signed-off-by: Andrei Gherzan <and...@gherzan.ro>
---
 arch/arm/dts/bcm2835-common.dtsi | 53 ++++++++++++++++++++++++++++++++
 arch/arm/dts/bcm2835.dtsi        |  1 +
 arch/arm/dts/bcm2836.dtsi        |  1 +
 arch/arm/dts/bcm2837.dtsi        |  1 +
 arch/arm/dts/bcm283x.dtsi        | 45 +--------------------------
 5 files changed, 57 insertions(+), 44 deletions(-)
 create mode 100644 arch/arm/dts/bcm2835-common.dtsi

diff --git a/arch/arm/dts/bcm2835-common.dtsi b/arch/arm/dts/bcm2835-common.dtsi
new file mode 100644
index 0000000000..17771730a3
--- /dev/null
+++ b/arch/arm/dts/bcm2835-common.dtsi
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* This include file covers the common peripherals and configuration between
+ * bcm2835, bcm2836 and bcm2837 implementations.
+ */
+
+/ {
+       soc {
+               timer@7e003000 {
+                       compatible = "brcm,bcm2835-system-timer";
+                       reg = <0x7e003000 0x1000>;
+                       interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
+                       /* This could be a reference to BCM2835_CLOCK_TIMER,
+                        * but we don't have the driver using the common clock
+                        * support yet.
+                        */
+                       clock-frequency = <1000000>;
+               };
+
+               intc: interrupt-controller@7e00b200 {
+                       compatible = "brcm,bcm2835-armctrl-ic";
+                       reg = <0x7e00b200 0x200>;
+                       interrupt-controller;
+                       #interrupt-cells = <2>;
+               };
+
+               thermal: thermal@7e212000 {
+                       compatible = "brcm,bcm2835-thermal";
+                       reg = <0x7e212000 0x8>;
+                       clocks = <&clocks BCM2835_CLOCK_TSENS>;
+                       #thermal-sensor-cells = <0>;
+                       status = "disabled";
+               };
+
+               v3d: v3d@7ec00000 {
+                       compatible = "brcm,bcm2835-v3d";
+                       reg = <0x7ec00000 0x1000>;
+                       interrupts = <1 10>;
+               };
+       };
+};
+
+&gpio {
+       i2c_slave_gpio18: i2c_slave_gpio18 {
+               brcm,pins = <18 19 20 21>;
+               brcm,function = <BCM2835_FSEL_ALT3>;
+       };
+
+       jtag_gpio4: jtag_gpio4 {
+               brcm,pins = <4 5 6 12 13>;
+               brcm,function = <BCM2835_FSEL_ALT5>;
+       };
+};
diff --git a/arch/arm/dts/bcm2835.dtsi b/arch/arm/dts/bcm2835.dtsi
index a5c3824c80..53bf4579cc 100644
--- a/arch/arm/dts/bcm2835.dtsi
+++ b/arch/arm/dts/bcm2835.dtsi
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "bcm283x.dtsi"
+#include "bcm2835-common.dtsi"
 
 / {
        compatible = "brcm,bcm2835";
diff --git a/arch/arm/dts/bcm2836.dtsi b/arch/arm/dts/bcm2836.dtsi
index c933e84138..82d6c4662a 100644
--- a/arch/arm/dts/bcm2836.dtsi
+++ b/arch/arm/dts/bcm2836.dtsi
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "bcm283x.dtsi"
+#include "bcm2835-common.dtsi"
 
 / {
        compatible = "brcm,bcm2836";
diff --git a/arch/arm/dts/bcm2837.dtsi b/arch/arm/dts/bcm2837.dtsi
index beb6c502da..9e95fee78e 100644
--- a/arch/arm/dts/bcm2837.dtsi
+++ b/arch/arm/dts/bcm2837.dtsi
@@ -1,4 +1,5 @@
 #include "bcm283x.dtsi"
+#include "bcm2835-common.dtsi"
 
 / {
        compatible = "brcm,bcm2837";
diff --git a/arch/arm/dts/bcm283x.dtsi b/arch/arm/dts/bcm283x.dtsi
index 9777644c6c..a024727e4d 100644
--- a/arch/arm/dts/bcm283x.dtsi
+++ b/arch/arm/dts/bcm283x.dtsi
@@ -56,17 +56,6 @@
                #address-cells = <1>;
                #size-cells = <1>;
 
-               timer@7e003000 {
-                       compatible = "brcm,bcm2835-system-timer";
-                       reg = <0x7e003000 0x1000>;
-                       interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
-                       /* This could be a reference to BCM2835_CLOCK_TIMER,
-                        * but we don't have the driver using the common clock
-                        * support yet.
-                        */
-                       clock-frequency = <1000000>;
-               };
-
                txp@7e004000 {
                        compatible = "brcm,bcm2835-txp";
                        reg = <0x7e004000 0x20>;
@@ -114,13 +103,6 @@
                        brcm,dma-channel-mask = <0x7f35>;
                };
 
-               intc: interrupt-controller@7e00b200 {
-                       compatible = "brcm,bcm2835-armctrl-ic";
-                       reg = <0x7e00b200 0x200>;
-                       interrupt-controller;
-                       #interrupt-cells = <2>;
-               };
-
                pm: watchdog@7e100000 {
                        compatible = "brcm,bcm2835-pm", "brcm,bcm2835-pm-wdt";
                        #power-domain-cells = <1>;
@@ -184,8 +166,7 @@
                        interrupt-controller;
                        #interrupt-cells = <2>;
 
-                       /* Defines pin muxing groups according to
-                        * BCM2835-ARM-Peripherals.pdf page 102.
+                       /* Defines common pin muxing groups
                         *
                         * While each pin can have its mux selected
                         * for various functions individually, some
@@ -263,15 +244,6 @@
                                brcm,pins = <44 45>;
                                brcm,function = <BCM2835_FSEL_ALT2>;
                        };
-                       i2c_slave_gpio18: i2c_slave_gpio18 {
-                               brcm,pins = <18 19 20 21>;
-                               brcm,function = <BCM2835_FSEL_ALT3>;
-                       };
-
-                       jtag_gpio4: jtag_gpio4 {
-                               brcm,pins = <4 5 6 12 13>;
-                               brcm,function = <BCM2835_FSEL_ALT5>;
-                       };
                        jtag_gpio22: jtag_gpio22 {
                                brcm,pins = <22 23 24 25 26 27>;
                                brcm,function = <BCM2835_FSEL_ALT4>;
@@ -488,14 +460,6 @@
 
                };
 
-               thermal: thermal@7e212000 {
-                       compatible = "brcm,bcm2835-thermal";
-                       reg = <0x7e212000 0x8>;
-                       clocks = <&clocks BCM2835_CLOCK_TSENS>;
-                       #thermal-sensor-cells = <0>;
-                       status = "disabled";
-               };
-
                aux: aux@7e215000 {
                        compatible = "brcm,bcm2835-aux";
                        #clock-cells = <1>;
@@ -635,13 +599,6 @@
                        phy-names = "usb2-phy";
                };
 
-               v3d: v3d@7ec00000 {
-                       compatible = "brcm,bcm2835-v3d";
-                       reg = <0x7ec00000 0x1000>;
-                       interrupts = <1 10>;
-                       power-domains = <&pm BCM2835_POWER_DOMAIN_GRAFX_V3D>;
-               };
-
                vc4: gpu {
                        compatible = "brcm,bcm2835-vc4";
                };
-- 
2.22.0

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