bcm96753ref: add initial support

This add the initial support of the broadcom reference
board bcm96753ref with a bcm6753 SoC.

This board has 1 GB of RAM, 256 MB of flash (nand),
2 USB port, 1 UART, and 4 ethernet ports.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>

4 files changed, 65 insertions, 0 deletions

diff --git a/board/broadcom/bcm96753ref/Kconfig b/board/broadcom/bcm96753ref/Kconfig
new file mode 100644
index 0000000000..479e790578
--- /dev/null
+++ b/board/broadcom/bcm96753ref/Kconfig
@@ -0,0 +1,16 @@
+if TARGET_BCM96753REF
+
+config SYS_VENDOR
+	default "broadcom"
+
+config SYS_BOARD
+	default "bcm96753ref"
+
+config SYS_CONFIG_NAME
+	default "broadcom_bcm96753ref"
+
+endif
+
+config TARGET_BCM96753REF
+	bool "Support Broadcom bcm96753ref"
+	depends on ARCH_BCM6753
diff --git a/board/broadcom/bcm96753ref/MAINTAINERS b/board/broadcom/bcm96753ref/MAINTAINERS
new file mode 100644
index 0000000000..be060f5a70
--- /dev/null
+++ b/board/broadcom/bcm96753ref/MAINTAINERS
@@ -0,0 +1,6 @@
+BROADCOM BCM96753REF
+M:	Philippe Reynes <philippe.reynes@softathome.com>
+S:	Maintained
+F:	board/broadcom/bcm96753ref
+F:	include/configs/broadcom_bcm96753ref.h
+F:	configs/bcm96753ref_ram_defconfig
diff --git a/board/broadcom/bcm96753ref/Makefile b/board/broadcom/bcm96753ref/Makefile
new file mode 100644
index 0000000000..a1fa2bff86
--- /dev/null
+++ b/board/broadcom/bcm96753ref/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-y	+= bcm96753ref.o
diff --git a/board/broadcom/bcm96753ref/bcm96753ref.c b/board/broadcom/bcm96753ref/bcm96753ref.c
new file mode 100644
index 0000000000..bf78d843aa
--- /dev/null
+++ b/board/broadcom/bcm96753ref/bcm96753ref.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2022 Philippe Reynes <philippe.reynes@softathome.com>
+ */
+
+#include <common.h>
+#include <fdtdec.h>
+#include <linux/io.h>
+#include <cpu_func.h>
+
+int board_init(void)
+{
+	return 0;
+}
+
+int dram_init(void)
+{
+	if (fdtdec_setup_mem_size_base() != 0)
+		printf("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 enable_caches(void)
+{
+	icache_enable();
+	dcache_enable();
+}