bcm963158: add initial support

This add the initial support of the broadcom reference
board bcm963158 with a bcm63158 SoC.

This board has 1 GB of ram, 512 MB of flash (nand),
2 usb port, 1 uart, 4 ethernet ports (LAN), 1 ethernet port (WAN).

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
diff --git a/board/broadcom/bcm963158/bcm963158.c b/board/broadcom/bcm963158/bcm963158.c
new file mode 100644
index 0000000..db82cd5
--- /dev/null
+++ b/board/broadcom/bcm963158/bcm963158.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Philippe Reynes <philippe.reynes@softathome.com>
+ */
+
+#include <common.h>
+#include <fdtdec.h>
+#include <linux/io.h>
+
+#ifdef CONFIG_ARM64
+#include <asm/armv8/mmu.h>
+
+static struct mm_region broadcom_bcm963158_mem_map[] = {
+	{
+		/* RAM */
+		.virt = 0x00000000UL,
+		.phys = 0x00000000UL,
+		.size = 8UL * SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+			 PTE_BLOCK_INNER_SHARE
+	}, {
+		/* SoC */
+		.virt = 0x80000000UL,
+		.phys = 0x80000000UL,
+		.size = 0xff80000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* List terminator */
+		0,
+	}
+};
+
+struct mm_region *mem_map = broadcom_bcm963158_mem_map;
+#endif
+
+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;
+}