arm: bcmbca: introduce the bcmbca architecture and 47622 SOC

This is the initial support for Broadcom's ARM-based 47622 SOC.

In this change, our first SOC is an armv7 platform called 47622. The
initial support includes a bare-bone implementation and dts with ARM
PL011 uart.

The SOC-specific code resides in arch/arm/mach-bcmbca/<soc> and board
related code is in board/broadcom/bcmba.

The u-boot image can be loaded from flash or network to the entry
point address in the memory and boot from there.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Signed-off-by: Kursad Oney <kursad.oney@broadcom.com>
Signed-off-by: Anand Gore <anand.gore@broadcom.com>
Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>

3 files changed, 57 insertions, 0 deletions

diff --git a/board/broadcom/bcmbca/Kconfig b/board/broadcom/bcmbca/Kconfig
new file mode 100644
index 0000000000..63d4252da6
--- /dev/null
+++ b/board/broadcom/bcmbca/Kconfig
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2022 Broadcom Ltd
+#
+
+config SYS_BOARD
+	default "bcmbca"
+
+config SYS_VENDOR
+	default "broadcom"
+
+if TARGET_BCM947622
+
+config SYS_CONFIG_NAME
+	default "bcm947622"
+
+endif
diff --git a/board/broadcom/bcmbca/Makefile b/board/broadcom/bcmbca/Makefile
new file mode 100644
index 0000000000..8f06c3111b
--- /dev/null
+++ b/board/broadcom/bcmbca/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2022 Broadcom Ltd
+
+obj-y	+= board.o
diff --git a/board/broadcom/bcmbca/board.c b/board/broadcom/bcmbca/board.c
new file mode 100644
index 0000000000..4aa1d659d5
--- /dev/null
+++ b/board/broadcom/bcmbca/board.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2022 Broadcom Ltd.
+ */
+
+#include <common.h>
+#include <fdtdec.h>
+
+int board_init(void)
+{
+	return 0;
+}
+
+int dram_init(void)
+{
+	if (fdtdec_setup_mem_size_base() != 0)
+		puts("fdtdec_setup_mem_size_base() has failed\n");
+
+	return 0;
+}
+
+int dram_init_banksize(void)
+{
+	fdtdec_setup_memory_banksize();
+	return 0;
+}
+
+int print_cpuinfo(void)
+{
+	return 0;
+}
+
+void reset_cpu(ulong addr)
+{
+}