mtd: OneNAND: allow board init function fail

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>

board/micronas/vct/ebi_onenand.c

@@ -169,7 +169,7 @@ static int ebi_write_bufferram(struct mtd_info *mtd, loff_t addr, int area,
 	return 0;
 }
 
-void onenand_board_init(struct mtd_info *mtd)
+int onenand_board_init(struct mtd_info *mtd)
 {
 	struct onenand_chip *chip = mtd->priv;
 
@@ -181,4 +181,6 @@ void onenand_board_init(struct mtd_info *mtd)
 
 	chip->read_bufferram = ebi_read_bufferram;
 	chip->write_bufferram = ebi_write_bufferram;
+
+	return 0;
 }

board/samsung/goni/onenand.c

@@ -11,11 +11,13 @@
 #include <linux/mtd/samsung_onenand.h>
 #include <onenand_uboot.h>
 
-void onenand_board_init(struct mtd_info *mtd)
+int onenand_board_init(struct mtd_info *mtd)
 {
 	struct onenand_chip *this = mtd->priv;
 
 	this->base = (void *)CONFIG_SYS_ONENAND_BASE;
 	this->options |= ONENAND_RUNTIME_BADBLOCK_CHECK;
 	this->chip_probe = s5pc110_chip_probe;
+
+	return 0;
 }

board/samsung/smdkc100/onenand.c

@@ -16,7 +16,7 @@
 #include <asm/io.h>
 #include <asm/arch/clock.h>
 
-void onenand_board_init(struct mtd_info *mtd)
+int onenand_board_init(struct mtd_info *mtd)
 {
 	struct onenand_chip *this = mtd->priv;
 	struct s5pc100_clock *clk =
@@ -65,4 +65,6 @@ void onenand_board_init(struct mtd_info *mtd)
 	writel(value, &onenand->int_err_mask);
 
 	s3c_onenand_init(mtd);
+
+	return 0;
 }

board/samsung/universal_c210/onenand.c

@@ -10,11 +10,13 @@
 #include <linux/mtd/onenand.h>
 #include <linux/mtd/samsung_onenand.h>
 
-void onenand_board_init(struct mtd_info *mtd)
+int onenand_board_init(struct mtd_info *mtd)
 {
 	struct onenand_chip *this = mtd->priv;
 
 	this->base = (void *)CONFIG_SYS_ONENAND_BASE;
 	this->options |= ONENAND_RUNTIME_BADBLOCK_CHECK;
 	this->chip_probe = s5pc210_chip_probe;
+
+	return 0;
 }

drivers/mtd/onenand/onenand_uboot.c

@@ -24,33 +24,33 @@ static __attribute__((unused)) char dev_name[] = "onenand0";
 
 void onenand_init(void)
 {
+	int err = 0;
 	memset(&onenand_mtd, 0, sizeof(struct mtd_info));
 	memset(&onenand_chip, 0, sizeof(struct onenand_chip));
 
 	onenand_mtd.priv = &onenand_chip;
 
 #ifdef CONFIG_USE_ONENAND_BOARD_INIT
-	/*
-	 * It's used for some board init required
-	 */
-	onenand_board_init(&onenand_mtd);
+	/* It's used for some board init required */
+	err = onenand_board_init(&onenand_mtd);
 #else
 	onenand_chip.base = (void *) CONFIG_SYS_ONENAND_BASE;
 #endif
 
-	onenand_scan(&onenand_mtd, 1);
+	if (!err && !(onenand_scan(&onenand_mtd, 1))) {
 
-	if (onenand_chip.device_id & DEVICE_IS_FLEXONENAND)
-		puts("Flex-");
-	puts("OneNAND: ");
-	print_size(onenand_chip.chipsize, "\n");
+		if (onenand_chip.device_id & DEVICE_IS_FLEXONENAND)
+			puts("Flex-");
+		puts("OneNAND: ");
 
 #ifdef CONFIG_MTD_DEVICE
-	/*
-	 * Add MTD device so that we can reference it later
-	 * via the mtdcore infrastructure (e.g. ubi).
-	 */
-	onenand_mtd.name = dev_name;
-	add_mtd_device(&onenand_mtd);
+		/*
+		 * Add MTD device so that we can reference it later
+		 * via the mtdcore infrastructure (e.g. ubi).
+		 */
+		onenand_mtd.name = dev_name;
+		add_mtd_device(&onenand_mtd);
 #endif
+	}
+	print_size(onenand_chip.chipsize, "\n");
 }

include/onenand_uboot.h

@@ -26,7 +26,7 @@ extern struct mtd_info onenand_mtd;
 extern struct onenand_chip onenand_chip;
 
 /* board */
-extern void onenand_board_init(struct mtd_info *);
+extern int onenand_board_init(struct mtd_info *);
 
 /* Functions */
 extern void onenand_init(void);