linux-kernel - [PATCH 1/3] omap: craneboard: support NAND device

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Message-ID: <A874F61F95741C4A9BA573A70FE3998F6418F138@DQHE02.ent.ti.com>
Date:	Thu, 29 Nov 2012 06:41:37 +0000
From:	"Kim, Milo" <Milo.Kim@...com>
To:	"tony@...mide.com" <tony@...mide.com>
CC:	"paul@...an.com" <paul@...an.com>,
	"Hiremath, Vaibhav" <hvaibhav@...com>,
	"srinath@...tralsolutions.com" <srinath@...tralsolutions.com>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/3] omap: craneboard: support NAND device

 This patch enables the NAND device on the AM3517 Craneboard.

 MTD partitions are created as below.
 0x000000000000-0x000000080000 : "X-Loader"
 0x000000080000-0x000000240000 : "U-Boot"
 0x000000240000-0x000000280000 : "U-Boot Env"
 0x000000280000-0x000000780000 : "Kernel"
 0x000000780000-0x000010000000 : "File System"

Signed-off-by: Milo(Woogyom) Kim <milo.kim@...com>
---
 arch/arm/mach-omap2/board-am3517crane.c |   38 +++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/arch/arm/mach-omap2/board-am3517crane.c b/arch/arm/mach-omap2/board-am3517crane.c
index 51b96a1..37646e5 100644
--- a/arch/arm/mach-omap2/board-am3517crane.c
+++ b/arch/arm/mach-omap2/board-am3517crane.c
@@ -20,12 +20,17 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/gpio.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
 #include "common.h"
+#include "common-board-devices.h"
+#include "board-flash.h"
 
 #include "am35xx-emac.h"
 #include "mux.h"
@@ -51,6 +56,36 @@ static struct usbhs_omap_board_data usbhs_bdata __initdata = {
 	.reset_gpio_port[2]  = -EINVAL
 };
 
+static struct mtd_partition crane_nand_partitions[] = {
+	{
+		.name		= "X-Loader",
+		.offset		= 0,
+		.size		= 4 * NAND_BLOCK_SIZE,
+		.mask_flags	= MTD_WRITEABLE,
+	},
+	{
+		.name		= "U-Boot",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= 14 * NAND_BLOCK_SIZE,
+		.mask_flags	= MTD_WRITEABLE,
+	},
+	{
+		.name		= "U-Boot Env",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= 2 * NAND_BLOCK_SIZE,
+	},
+	{
+		.name		= "Kernel",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= 40 * NAND_BLOCK_SIZE,
+	},
+	{
+		.name		= "File System",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= MTDPART_SIZ_FULL,
+	},
+};
+
 static void __init am3517_crane_init(void)
 {
 	int ret;
@@ -58,6 +93,9 @@ static void __init am3517_crane_init(void)
 	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 	omap_serial_init();
 	omap_sdrc_init(NULL, NULL);
+	board_nand_init(crane_nand_partitions,
+			ARRAY_SIZE(crane_nand_partitions), 0,
+			NAND_BUSWIDTH_16, NULL);
 
 	/* Configure GPIO for EHCI port */
 	if (omap_mux_init_gpio(GPIO_USB_NRESET, OMAP_PIN_OUTPUT)) {
-- 
1.7.9.5


Best Regards,
Milo


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