[U-Boot] [PATCH] mtd: zynq: nand: Move board_nand_init() function to board.c

[Wilson Lee]

Putting board_nand_init() function inside NAND driver was not appropriate
due to it doesn't allow board vendor to customise their NAND
initialization code such as adding NAND lock/unlock code.

This commit was to move the board_nand_init() function from NAND driver
to board.c file. This allow customization of board_nand_init() function.

Signed-off-by: Wilson Lee <wilson.lee at ni.com>
Cc: Joe Hershberger <joe.hershberger at ni.com>
Cc: Keng Soon Cheah <keng.soon.cheah at ni.com>
Cc: Chen Yee Chew <chen.yee.chew at ni.com>
Cc: Albert Aribaud <albert.u.boot at aribaud.net>
Cc: Michal Simek <michal.simek at xilinx.com>
Cc: Siva Durga Prasad Paladugu <siva.durga.paladugu at xilinx.com>
Cc: Scott Wood <oss at buserror.net>
---
 arch/arm/mach-zynq/include/mach/nand.h |  9 +++++++++
 board/xilinx/zynq/board.c              | 10 ++++++++++
 drivers/mtd/nand/zynq_nand.c           | 12 +-----------
 3 files changed, 20 insertions(+), 11 deletions(-)
 create mode 100644 arch/arm/mach-zynq/include/mach/nand.h

diff --git a/arch/arm/mach-zynq/include/mach/nand.h b/arch/arm/mach-zynq/include/mach/nand.h
new file mode 100644
index 0000000..61ef45f
--- /dev/null
+++ b/arch/arm/mach-zynq/include/mach/nand.h
@@ -0,0 +1,9 @@
+/*
+ * Copyright (C) 2017 National Instruments Corp.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <nand.h>
+
+void zynq_nand_init(void);
diff --git a/board/xilinx/zynq/board.c b/board/xilinx/zynq/board.c
index 90ef542..8bcb830 100644
--- a/board/xilinx/zynq/board.c
+++ b/board/xilinx/zynq/board.c
@@ -9,6 +9,7 @@
 #include <fpga.h>
 #include <mmc.h>
 #include <zynqpl.h>
+#include <asm/arch/nand.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/sys_proto.h>
 
@@ -156,3 +157,12 @@ int dram_init(void)
 	return 0;
 }
 #endif
+
+static struct nand_chip nand_chip[CONFIG_SYS_MAX_NAND_DEVICE];
+void board_nand_init(void)
+{
+	struct nand_chip *nand = &nand_chip[0];
+
+	if (zynq_nand_init(nand, 0))
+		puts("ZYNQ NAND init failed\n");
+}
diff --git a/drivers/mtd/nand/zynq_nand.c b/drivers/mtd/nand/zynq_nand.c
index dec2c41..9be6856 100644
--- a/drivers/mtd/nand/zynq_nand.c
+++ b/drivers/mtd/nand/zynq_nand.c
@@ -1006,7 +1006,7 @@ static int zynq_nand_device_ready(struct mtd_info *mtd)
 	return 0;
 }
 
-static int zynq_nand_init(struct nand_chip *nand_chip, int devnum)
+int zynq_nand_init(struct nand_chip *nand_chip, int devnum)
 {
 	struct zynq_nand_info *xnand;
 	struct mtd_info *mtd;
@@ -1191,13 +1191,3 @@ fail:
 	free(xnand);
 	return err;
 }
-
-static struct nand_chip nand_chip[CONFIG_SYS_MAX_NAND_DEVICE];
-
-void board_nand_init(void)
-{
-	struct nand_chip *nand = &nand_chip[0];
-
-	if (zynq_nand_init(nand, 0))
-		puts("ZYNQ NAND init failed\n");
-}
-- 
2.7.4