arm: bcmbca: add bcm6856 SoC support under CONFIG_ARCH_BCMBCA
BCM6856 is a Broadcom B53 based PON Gateway SoC. It is part of the BCA
(Broadband Carrier Access origin) chipset family. Like other Broadband
SoC, this patch adds it under CONFIG_BCM6856 chip config and
CONFIG_ARCH_BCMBCA platform config.
This initial support includes a bare-bone implementation and dts with
CPU subsystem, memory and Broadcom uart. This SoC is supported in the
linux-next git repository so the dts and dtsi files are copied from
linux.
The u-boot image can be loaded from flash or network to the entry point
address in the memory and boot from there to the console.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>
diff --git a/arch/arm/dts/bcm96856.dts b/arch/arm/dts/bcm96856.dts
new file mode 100644
index 0000000..032aeb7
--- /dev/null
+++ b/arch/arm/dts/bcm96856.dts
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2022 Broadcom Ltd.
+ */
+
+/dts-v1/;
+
+#include "bcm6856.dtsi"
+
+/ {
+ model = "Broadcom BCM96856 Reference Board";
+ compatible = "brcm,bcm96856", "brcm,bcm6856", "brcm,bcmbca";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x0 0x0 0x08000000>;
+ };
+};
+
+&uart0 {
+ status = "okay";
+};