arm: add Cubieboard7 board support

The Cubieboard is a single board computer containing a
Actions S700 SoC(with 4 ARMv8 Cortex-A53 cores).

This patch adds respective defconfig alongwith .dts(copied
from Linux v5.5-rc6 with hash "b3a987b0264d").

Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>

diff --git a/arch/arm/dts/s700-cubieboard7.dts b/arch/arm/dts/s700-cubieboard7.dts
new file mode 100644 (file)
index 0000000..63e375c
--- /dev/null
+++ b/arch/arm/dts/s700-cubieboard7.dts
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2017 Andreas Färber
+ */
+
+/dts-v1/;
+
+#include "s700.dtsi"
+
+/ {
+       compatible = "cubietech,cubieboard7", "actions,s700";
+       model = "CubieBoard7";
+
+       aliases {
+               serial3 = &uart3;
+       };
+
+       chosen {
+               stdout-path = "serial3:115200n8";
+       };
+
+       memory@0 {
+               device_type = "memory";
+               reg = <0x0 0x0 0x0 0x80000000>;
+       };
+
+       memory@1,e0000000 {
+               device_type = "memory";
+               reg = <0x1 0xe0000000 0x0 0x0>;
+       };
+};
+
+&i2c0 {
+       status = "okay";
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c0_default>;
+};
+
+&i2c1 {
+       status = "okay";
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c1_default>;
+};
+
+&i2c2 {
+       status = "disabled";
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c2_default>;
+};
+
+&pinctrl {
+       i2c0_default: i2c0_default {
+               pinmux {
+                       groups = "i2c0_mfp";
+                       function = "i2c0";
+               };
+               pinconf {
+                       pins = "i2c0_sclk", "i2c0_sdata";
+                       bias-pull-up;
+               };
+       };
+
+       i2c1_default: i2c1_default {
+               pinmux {
+                       groups = "i2c1_dummy";
+                       function = "i2c1";
+               };
+               pinconf {
+                       pins = "i2c1_sclk", "i2c1_sdata";
+                       bias-pull-up;
+               };
+       };
+
+       i2c2_default: i2c2_default {
+               pinmux {
+                       groups = "i2c2_dummy";
+                       function = "i2c2";
+               };
+               pinconf {
+                       pins = "i2c2_sclk", "i2c2_sdata";
+                       bias-pull-up;
+               };
+       };
+};
+
+&timer {
+       clocks = <&hosc>;
+};
+
+&uart3 {
+       status = "okay";
+};

diff --git a/configs/cubieboard7_defconfig b/configs/cubieboard7_defconfig
new file mode 100644 (file)
index 0000000..637dc9e
--- /dev/null
+++ b/configs/cubieboard7_defconfig
@@ -0,0 +1,12 @@
+CONFIG_ARM=y
+CONFIG_ARCH_OWL=y
+CONFIG_MACH_S700=y
+CONFIG_IDENT_STRING="\ncubieboard7"
+CONFIG_DISTRO_DEFAULTS=y
+CONFIG_BOOTDELAY=5
+CONFIG_USE_BOOTARGS=y
+CONFIG_BOOTARGS="console=ttyOWL3,115200n8"
+# CONFIG_DISPLAY_CPUINFO is not set
+# CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_SYS_PROMPT="U-Boot => "
+CONFIG_DEFAULT_DEVICE_TREE="s700-cubieboard7"