ARM: UniPhier: detect the number of flash banks at run-time

Some UniPhier boards are equipped with an expansion slot that
some optional SRAM/NOR-flash cards can be attached to.  So, run-time
detection of the number of flash banks would be more user-friendly.

Until this commit, UniPhier boards have achieved this by (ab)using
board_flash_wp_on() because the boot failed if flash_size got zero.
Fortunately, this problem was solved by commit 70879a92561a (flash:
do not fail even if flash_size is zero).

Now it is possible to throw away such a tricky workaround.  This
commit also enables CONFIG_SYS_MAX_FLASH_BANKS_DETECT for further
refactoring.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/arch/arm/cpu/armv7/uniphier/board_early_init_r.c b/arch/arm/cpu/armv7/uniphier/board_early_init_r.c
new file mode 100644
index 0000000..cb7e04f
--- /dev/null
+++ b/arch/arm/cpu/armv7/uniphier/board_early_init_r.c
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2014 Panasonic Corporation
+ *   Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/board.h>
+
+int board_early_init_r(void)
+{
+	uniphier_board_late_init();
+	return 0;
+}