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

Signed-off-by: Andrei Gherzan <and...@gherzan.ro>
---
 arch/arm/dts/Makefile            |   4 +-
 arch/arm/dts/bcm2838-rpi-4-b.dts |  56 ++++++++
 arch/arm/dts/bcm2838.dtsi        | 237 +++++++++++++++++++++++++++++++
 3 files changed, 296 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/dts/bcm2838-rpi-4-b.dts
 create mode 100644 arch/arm/dts/bcm2838.dtsi

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 20dbc2ff84..16790af1e1 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -749,7 +749,9 @@ dtb-$(CONFIG_ARCH_BCM283X) += \
        bcm2837-rpi-3-a-plus.dtb \
        bcm2837-rpi-3-b.dtb \
        bcm2837-rpi-3-b-plus.dtb \
-       bcm2837-rpi-cm3-io3.dtb
+       bcm2837-rpi-cm3-io3.dtb \
+       bcm2837-rpi-3-b.dtb \
+       bcm2838-rpi-4-b.dtb
 
 dtb-$(CONFIG_ARCH_BCM63158) += \
        bcm963158.dtb
diff --git a/arch/arm/dts/bcm2838-rpi-4-b.dts b/arch/arm/dts/bcm2838-rpi-4-b.dts
new file mode 100644
index 0000000000..07e9a78e8d
--- /dev/null
+++ b/arch/arm/dts/bcm2838-rpi-4-b.dts
@@ -0,0 +1,56 @@
+/dts-v1/;
+#include "bcm2838.dtsi"
+
+/ {
+       compatible = "raspberrypi,4-model-b","brcm,bcm2838","brcm,bcm2837";
+       model = "Raspberry Pi 4 Model B";
+
+       memory {
+               reg = <0 0 0x40000000>;
+       };
+
+       leds {
+               act {
+                       gpios = <&gpio 47 0>;
+               };
+       };
+};
+
+/* 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_pins>;
+       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>;
+};
+
+&gpio {
+       uart1_pins: uart1_pins {                                                
                                                                                
                                                  
+               brcm,pins;                                                      
                                                                                
                                                  
+               brcm,function;                                                  
                                                                                
                                                  
+               brcm,pull;                                                      
                                                                                
                                                  
+       };
+};
diff --git a/arch/arm/dts/bcm2838.dtsi b/arch/arm/dts/bcm2838.dtsi
new file mode 100644
index 0000000000..19b2d7b905
--- /dev/null
+++ b/arch/arm/dts/bcm2838.dtsi
@@ -0,0 +1,237 @@
+#include "bcm283x.dtsi"
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/power/raspberrypi-power.h>
+
+/ {
+       compatible = "brcm,bcm2838";
+
+       #address-cells = <2>;
+       #size-cells = <1>;
+
+       interrupt-parent = <&gic>;
+
+       soc {
+               ranges = <0x7e000000  0x0 0xfe000000  0x01800000>,
+                        <0x7c000000  0x0 0xfc000000  0x02000000>,
+                        <0x40000000  0x0 0xff800000  0x00800000>;
+               dma-ranges = <0xc0000000  0x0 0x00000000  0x3c000000>;
+
+               gic: gic400@40041000 {
+                       interrupt-controller;
+                       #interrupt-cells = <3>;
+                       compatible = "arm,gic-400";
+                       reg =   <0x40041000 0x1000>,
+                               <0x40042000 0x2000>,
+                               <0x40044000 0x2000>,
+                               <0x40046000 0x2000>;
+               };
+
+               thermal: thermal@7d5d2200 {
+                       compatible = "brcm,avs-tmon-bcm2838";
+                       reg = <0x7d5d2200 0x2c>;
+                       interrupts = <GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>;
+                       interrupt-names = "tmon";
+                       clocks = <&clocks BCM2835_CLOCK_TSENS>;
+                       #thermal-sensor-cells = <0>;
+                       status = "okay";
+               };
+
+               spi@7e204000 {                               
+                        reg = <0x7e204000 0x0200>;                             
         
+                        interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
+                };
+
+                pixelvalve@7e206000 {                          
+                        interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
+                };                                                 
+                                                                   
+                pixelvalve@7e207000 {                              
+                        interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
+                };                                                 
+                                                                   
+                hvs@7e400000 {          
+                        interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
+                };                                                
+               
+               emmc2: emmc2@7e340000 {
+                        compatible = "brcm,bcm2711-emmc2";
+                        status = "okay";
+                        interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>;
+                        clocks = <&clocks BCM2838_CLOCK_EMMC2>;
+                        reg = <0x7e340000 0x100>;
+                };
+                                                       
+                pixelvalve@7e807000 {                                  
+                        interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+                };     
+                       
+       };
+
+        arm-pmu {
+                /*
+                 * N.B. the A72 PMU support only exists in arch/arm64, hence
+                 * the fallback to the A53 version.
+                 */
+                compatible = "arm,cortex-a72-pmu", "arm,cortex-a53-pmu";
+                interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
+                        <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>,
+                        <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
+                        <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+        };
+
+       timer {
+               compatible = "arm,armv7-timer";
+               interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) |
+                                       IRQ_TYPE_LEVEL_LOW)>,
+                            <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) |
+                                       IRQ_TYPE_LEVEL_LOW)>,
+                            <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | 
+                                       IRQ_TYPE_LEVEL_LOW)>,
+                            <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | 
+                                       IRQ_TYPE_LEVEL_LOW)>;
+               arm,cpu-registers-not-fw-configured; 
+               always-on;
+       };
+
+       cpus: cpus {
+               #address-cells = <1>;
+               #size-cells = <0>;
+               enable-method = "brcm,bcm2836-smp"; // for ARM 32-bit
+
+               cpu0: cpu@0 {
+                       device_type = "cpu";
+                       compatible = "arm,cortex-a72";
+                       reg = <0>;
+                       enable-method = "spin-table";
+                       cpu-release-addr = <0x0 0x000000d8>;
+               };
+
+               cpu1: cpu@1 {
+                       device_type = "cpu";
+                       compatible = "arm,cortex-a72";
+                       reg = <1>;
+                       enable-method = "spin-table";
+                       cpu-release-addr = <0x0 0x000000e0>;
+               };
+
+               cpu2: cpu@2 {
+                       device_type = "cpu";
+                       compatible = "arm,cortex-a72";
+                       reg = <2>;
+                       enable-method = "spin-table";
+                       cpu-release-addr = <0x0 0x000000e8>;
+               };
+
+               cpu3: cpu@3 {
+                       device_type = "cpu";
+                       compatible = "arm,cortex-a72";
+                       reg = <3>;
+                       enable-method = "spin-table";
+                       cpu-release-addr = <0x0 0x000000f0>;
+               };
+       };
+};
+
+&clk_osc {
+       clock-frequency = <54000000>;
+};
+
+&clocks {
+       compatible = "brcm,bcm2838-cprman";
+};
+
+&cpu_thermal {
+       coefficients = <(-487)  410040>;
+};
+
+&dsi0 {                                                                     
+        interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;                
+};                                                                           
+                                                                        
+&dsi1 {                                                                      
+        interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;                   
+};
+
+&gpio {
+       compatible = "brcm,bcm2838-gpio", "brcm,bcm2835-gpio";
+       interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>,
+                    <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>,
+                    <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,
+                    <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&vec {
+        interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&usb {
+        interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&hdmi {
+        interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&uart1 {
+       interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&spi1 {
+        interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&spi2 {
+        interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&i2c0 {                                             
+        interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+}; 
+
+&i2c1 {
+        interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&i2c2 {
+        interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&mailbox {                                                   
+        interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&sdhost {
+        interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&uart0 {
+        interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
+};
+
+&dma {
+        reg = <0x7e007000 0xb00>;
+        interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>,
+                <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>,
+                <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>,
+                <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>,
+                <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>,
+                <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>,
+                <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>,
+                <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>, /* dmalite  7 */
+                <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>, /* dmalite  8 */
+                <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>, /* dmalite  9 */
+                <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>; /* dmalite 10 */
+        interrupt-names = "dma0",
+                          "dma1",
+                          "dma2",
+                          "dma3",
+                          "dma4",
+                          "dma5",
+                          "dma6",
+                          "dma7",
+                          "dma8",
+                          "dma9",
+                          "dma10";
+        brcm,dma-channel-mask = <0x07f5>;
+};
-- 
2.22.0

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