Merge git://git.denx.de/u-boot-arc

arch/arc/cpu/u-boot.lds

@@ -13,6 +13,7 @@ SECTIONS
 	.text :	{
 		*(.__text_start)
 		*(.__image_copy_start)
+		arch/arc/lib/start.o (.text*)
 		*(.text*)
 	}
 

arch/arc/lib/Makefile

@@ -4,6 +4,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
+extra-y	= start.o
+head-y := start.o
 obj-y += cache.o
 obj-y += cpu.o
 obj-y += interrupts.o
@@ -18,7 +20,6 @@ obj-y += memcpy-700.o
 obj-y += memset.o
 obj-y += reset.o
 obj-y += timer.o
-obj-y += start.o
 obj-y += ints_low.o
 obj-y += init_helpers.o
 

board/synopsys/axs101/axs101.c

@@ -9,6 +9,7 @@
 #include <malloc.h>
 #include <netdev.h>
 #include <phy.h>
+#include "axs10x.h"
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -42,3 +43,16 @@ int board_eth_init(bd_t *bis)
 
 	return 0;
 }
+
+
+#define AXS_MB_CREG	0xE0011000
+
+int board_early_init_f(void)
+{
+	if (readl((void __iomem *)AXS_MB_CREG + 0x234) & (1 << 28))
+		gd->board_type = AXS_MB_V3;
+	else
+		gd->board_type = AXS_MB_V2;
+
+	return 0;
+}

board/synopsys/axs101/axs10x.h

+/*
+ * Copyright (C) 2015 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _BOARD_SYNOPSYS_AXS10X_H
+#define _BOARD_SYNOPSYS_AXS10X_H
+
+enum {
+	AXS_MB_V2,
+	AXS_MB_V3
+};
+
+#endif /* _BOARD_SYNOPSYS_AXS10X_H */
+

board/synopsys/axs101/nand.c

@@ -9,6 +9,9 @@
 #include <malloc.h>
 #include <nand.h>
 #include <asm/io.h>
+#include "axs10x.h"
+
+DECLARE_GLOBAL_DATA_PTR;
 
 #define BUS_WIDTH	8		/* AXI data bus width in bytes	*/
 
@@ -232,5 +235,9 @@ int board_nand_init(struct nand_chip *nand)
 	nand->write_buf = axs101_nand_write_buf;
 	nand->read_buf = axs101_nand_read_buf;
 
+	/* MBv3 has NAND IC with 16-bit data bus */
+	if (gd->board_type == AXS_MB_V3)
+		nand->options |= NAND_BUSWIDTH_16;
+
 	return 0;
 }

include/configs/axs101.h

@@ -33,6 +33,12 @@
 #define CONFIG_SYS_BOOTM_LEN		0x2000000	/* 32 MB */
 #define CONFIG_SYS_LOAD_ADDR		0x82000000
 
+/*
+ * This board might be of different versions so handle it
+ */
+#define CONFIG_BOARD_TYPES
+#define CONFIG_BOARD_EARLY_INIT_F
+
 /*
  * NAND Flash configuration
  */