From patchwork Thu Sep  8 13:03:02 2011
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Subject: ti816x: add support for nand on ti8168 evm
Date: Thu, 08 Sep 2011 03:03:02 -0000
From: "Saxena, Parth" <parth.saxena@ti.com>
X-Patchwork-Id: 113901
Message-Id: <1315486982-30109-1-git-send-email-parth.saxena@ti.com>
To: <linux-mtd@lists.infradead.org>
Cc: "Basheer, Mansoor Ahamed" <mansoor.ahamed@ti.com>, "Saxena,
 Parth" <parth.saxena@ti.com>, linux-omap@vger.kernel.org

Add partition table for NAND device on TI8168 EVM
and initialise the NAND module.

Signed-off-by: Saxena, Parth <parth.saxena@ti.com>
Signed-off-by: Basheer, Mansoor Ahamed <mansoor.ahamed@ti.com>

---
This patch is tested on top of linux-omap/master and
Hemant's patches submitted recently.

http://www.mail-archive.com/linux-omap@vger.kernel.org/msg53457.html
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg54296.html

 arch/arm/mach-omap2/board-ti8168evm.c |   39 +++++++++++++++++++++++++++++++++
 1 files changed, 39 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-omap2/board-ti8168evm.c b/arch/arm/mach-omap2/board-ti8168evm.c
index e516a04..87953bb 100644
--- a/arch/arm/mach-omap2/board-ti8168evm.c
+++ b/arch/arm/mach-omap2/board-ti8168evm.c
@@ -14,6 +14,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/mtd/nand.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -23,6 +24,42 @@
 #include <plat/irqs.h>
 #include <plat/board.h>
 #include <plat/common.h>
+#include <plat/gpmc.h>
+#include <plat/nand.h>
+
+#include "board-flash.h"
+
+#define NAND_BLOCK_SIZE		SZ_128K
+
+static struct mtd_partition ti816x_nand_partitions[] = {
+/* All the partition sizes are listed in terms of NAND block size */
+	{
+		.name		= "U-Boot",
+		.offset		= 0,			/* Offset = 0x0 */
+		.size		= 18 * NAND_BLOCK_SIZE,
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	{
+		.name		= "U-Boot Env",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x240000 */
+		.size		= 2 * NAND_BLOCK_SIZE,
+	},
+	{
+		.name		= "Kernel",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x280000 */
+		.size		= 34 * NAND_BLOCK_SIZE,
+	},
+	{
+		.name		= "File System",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x6C0000 */
+		.size		= 1601 * NAND_BLOCK_SIZE,
+	},
+	{
+		.name		= "Reserved",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0xCEE0000 */
+		.size		= MTDPART_SIZ_FULL,
+	},
+};
 
 static struct omap_board_config_kernel ti8168_evm_config[] __initdata = {
 };
@@ -35,6 +72,8 @@ static void __init ti8168_init_early(void)
 
 static void __init ti8168_evm_init(void)
 {
+	board_nand_init(ti816x_nand_partitions,
+		ARRAY_SIZE(ti816x_nand_partitions), 0, NAND_BUSWIDTH_16);
 	omap_serial_init();
 	omap_board_config = ti8168_evm_config;
 	omap_board_config_size = ARRAY_SIZE(ti8168_evm_config);