Patchwork [PATCH-v6,2/4] OMAP3: Add support for NAND on ZOOM/LDP boards

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Submitter vimal singh
Date Nov. 19, 2009, 2:16 p.m.
Message ID <ce9ab5790911190616r6808feacr78d581dd958e6362@mail.gmail.com>
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Permalink /patch/38836/
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vimal singh - Nov. 19, 2009, 2:16 p.m.
From 43df1ee9e29d454100e59ee4902db157072b81b6 Mon Sep 17 00:00:00 2001
From: Vimal Singh <vimalsingh@ti.com>
Date: Thu, 19 Nov 2009 14:37:44 +0530
Subject: [PATCH] OMAP3: Add support for NAND on ZOOM/LDP boards

Adding NAND support for ZOOM2/3 and LDP board.
I have tested it for ZOOM2 boards. Someone can verify it for LDP
and ZOOM3 boards, hopefully it should not have any problem.

The size of the U-Boot environment partition was increased to 1.25MB.

Vikram: Changed ldp name to zoom.
      Future boards will be called Zoom2/3/4 etc.
      LDP is a Zoom1. Somhow the LDP name got stuck to that.

Signed-off-by: Vimal Singh <vimalsingh@ti.com>
Cc: Vikram Pandita <vikram.pandita@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Makefile                 |    3 +
 arch/arm/mach-omap2/board-ldp.c              |    2 +
 arch/arm/mach-omap2/board-zoom-flash.c       |   92 ++++++++++++++++++++++++++
 arch/arm/mach-omap2/board-zoom-peripherals.c |    2 +
 arch/arm/plat-omap/include/plat/board-zoom.h |   36 ++++++++++
 5 files changed, 135 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-omap2/board-zoom-flash.c
 create mode 100644 arch/arm/plat-omap/include/plat/board-zoom.h
Nishanth Menon - Nov. 19, 2009, 2:20 p.m.
Vimal Singh had written, on 11/19/2009 08:16 AM, the following:
> From 43df1ee9e29d454100e59ee4902db157072b81b6 Mon Sep 17 00:00:00 2001
> From: Vimal Singh <vimalsingh@ti.com>
> Date: Thu, 19 Nov 2009 14:37:44 +0530
> Subject: [PATCH] OMAP3: Add support for NAND on ZOOM/LDP boards
> 
> Adding NAND support for ZOOM2/3 and LDP board.
> I have tested it for ZOOM2 boards. Someone can verify it for LDP
> and ZOOM3 boards, hopefully it should not have any problem.
> 
> The size of the U-Boot environment partition was increased to 1.25MB.
> 
> Vikram: Changed ldp name to zoom.
>       Future boards will be called Zoom2/3/4 etc.
>       LDP is a Zoom1. Somhow the LDP name got stuck to that.
> 
> Signed-off-by: Vimal Singh <vimalsingh@ti.com>
> Cc: Vikram Pandita <vikram.pandita@ti.com>
> Cc: Tony Lindgren <tony@atomide.com>
> ---
>  arch/arm/mach-omap2/Makefile                 |    3 +
>  arch/arm/mach-omap2/board-ldp.c              |    2 +
>  arch/arm/mach-omap2/board-zoom-flash.c       |   92 ++++++++++++++++++++++++++
>  arch/arm/mach-omap2/board-zoom-peripherals.c |    2 +
>  arch/arm/plat-omap/include/plat/board-zoom.h |   36 ++++++++++
>  5 files changed, 135 insertions(+), 0 deletions(-)
>  create mode 100644 arch/arm/mach-omap2/board-zoom-flash.c
>  create mode 100644 arch/arm/plat-omap/include/plat/board-zoom.h
> 
> diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
> index b0e5b46..c2ca76e 100644
> --- a/arch/arm/mach-omap2/Makefile
> +++ b/arch/arm/mach-omap2/Makefile
> @@ -62,6 +62,7 @@ obj-$(CONFIG_MACH_OMAP_APOLLON)		+= board-apollon.o
>  obj-$(CONFIG_MACH_OMAP3_BEAGLE)		+= board-omap3beagle.o \
>  					   mmc-twl4030.o
>  obj-$(CONFIG_MACH_OMAP_LDP)		+= board-ldp.o \
> +					   board-zoom-flash.o \
>  					   mmc-twl4030.o
>  obj-$(CONFIG_MACH_OVERO)		+= board-overo.o \
>  					   mmc-twl4030.o
> @@ -78,10 +79,12 @@ obj-$(CONFIG_MACH_NOKIA_RX51)		+= board-rx51.o \
>  					   board-rx51-peripherals.o \
>  					   mmc-twl4030.o
>  obj-$(CONFIG_MACH_OMAP_ZOOM2)		+= board-zoom2.o \
> + 					   board-zoom-flash.o \
>  					   board-zoom-peripherals.o \
>  					   mmc-twl4030.o \
>  					   board-zoom-debugboard.o
>  obj-$(CONFIG_MACH_OMAP_ZOOM3)		+= board-zoom3.o \
> + 					   board-zoom-flash.o \
>  					   board-zoom-peripherals.o \
>  					   mmc-twl4030.o \
>  					   board-zoom-debugboard.o
> diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
> index c062238..8aebdf9 100644
> --- a/arch/arm/mach-omap2/board-ldp.c
> +++ b/arch/arm/mach-omap2/board-ldp.c
> @@ -42,6 +42,7 @@
>  #include <asm/delay.h>
>  #include <plat/control.h>
>  #include <plat/usb.h>
> +#include <plat/board-zoom.h>
> 
>  #include "mmc-twl4030.h"
> 
> @@ -385,6 +386,7 @@ static void __init omap_ldp_init(void)
>  	ads7846_dev_init();
>  	omap_serial_init();
>  	usb_musb_init();
> +	zoom_flash_init();
> 
>  	twl4030_mmc_init(mmc);
>  	/* link regulators to MMC adapters */
> diff --git a/arch/arm/mach-omap2/board-zoom-flash.c
> b/arch/arm/mach-omap2/board-zoom-flash.c
> new file mode 100644
> index 0000000..1867d6a
> --- /dev/null
> +++ b/arch/arm/mach-omap2/board-zoom-flash.c
> @@ -0,0 +1,92 @@
> +/*
> + * board-zoom-flash.c
> + *
> + * Copyright (C) 2008-09 Texas Instruments Inc.
> + *
> + * Modified from mach-omap2/board-2430sdp-flash.c
> + * Author(s): Vimal Singh <vimalsingh@ti.com>
> + *            Rohit Choraria <rohitkc@ti.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/delay.h>
> +#include <linux/platform_device.h>
> +#include <linux/mtd/mtd.h>
> +#include <linux/mtd/partitions.h>
> +#include <linux/mtd/nand.h>
> +#include <linux/types.h>
> +#include <linux/io.h>
> +
> +#include <asm/mach/flash.h>
> +#include <plat/board.h>
> +#include <plat/gpmc.h>
> +#include <plat/nand.h>
> +
> +#include <plat/board-zoom.h>
> +
> +static struct mtd_partition zoom_nand_partitions[] = {
> +	/* All the partition sizes are listed in terms of NAND block size */
> +	{
> +		.name		= "X-Loader-NAND",
> +		.offset		= 0,
> +		.size		= 4 * (64 * 2048),	/* 512KB, 0x80000 */
> +		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
> +	},
> +	{
> +		.name		= "U-Boot-NAND",
> +		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
> +		.size		= 10 * (64 * 2048),	/* 1.25MB, 0x140000 */
> +		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
> +	},
> +	{
> +		.name		= "Boot Env-NAND",
> +		.offset		= MTDPART_OFS_APPEND,   /* Offset = 0x1c0000 */
> +		.size		= 2 * (64 * 2048),	/* 256KB, 0x40000 */
> +	},
> +	{
> +		.name		= "Kernel-NAND",
> +		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x0200000*/
> +		.size		= 240 * (64 * 2048),	/* 30M, 0x1E00000 */
> +	},
> +	{
> +		.name		= "File System - NAND",
> +		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x2000000 */
> +		.size		= MTDPART_SIZ_FULL,
> +	},
> +};
> +
> +/* NAND chip access: 16 bit */
> +static struct omap_nand_platform_data zoom_nand_data = {
> +	.parts		= zoom_nand_partitions,
> +	.nr_parts	= ARRAY_SIZE(zoom_nand_partitions),
> +	.nand_setup	= NULL,
> +	.dma_channel	= -1,	/* disable DMA in OMAP NAND driver */
> +	.dev_ready	= NULL,
> +	.devsize	= 1,	/* '0' for 8-bit, '1' for 16-bit device */
> +};
> +
> +/**
> + * zoom_flash_init - Identify devices connected to GPMC and register.
> + *
> + * @return - void.
> + */
> +void __init zoom_flash_init(void)

Should take CS number as a parameter -> this will break SDP3630 otherwise.

> +{
> +	u8 nandcs = GPMC_CS_NUM + 1;
> +	u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
> +
> +	/* pop nand part */
> +	nandcs = LDP3430_NAND_CS;
> +
> +	zoom_nand_data.cs = nandcs;
> +	zoom_nand_data.gpmc_cs_baseaddr = (void *)(gpmc_base_add +
> +					GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
> +	zoom_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
> +
> +	gpmc_nand_init(&zoom_nand_data);
> +}
> +
> diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c
> b/arch/arm/mach-omap2/board-zoom-peripherals.c
> index f14baa3..fcc2836 100755
> --- a/arch/arm/mach-omap2/board-zoom-peripherals.c
> +++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
> @@ -21,6 +21,7 @@
>  #include <asm/mach/arch.h>
>  #include <asm/mach/map.h>
> 
> +#include <plat/board-zoom.h>
>  #include <plat/common.h>
>  #include <plat/usb.h>
> 
> @@ -264,4 +265,5 @@ void __init zoom_peripherals_init(void)
>  	omap_i2c_init();
>  	omap_serial_init();
>  	usb_musb_init();
> +	zoom_flash_init();
probably should be called by board files independently. zoom-peripherals 
get used by sdp3630,zoom2, zoom3.

>  }
> diff --git a/arch/arm/plat-omap/include/plat/board-zoom.h
> b/arch/arm/plat-omap/include/plat/board-zoom.h
> new file mode 100644
> index 0000000..8d63f7e
> --- /dev/null
> +++ b/arch/arm/plat-omap/include/plat/board-zoom.h
> @@ -0,0 +1,36 @@
> +/*
> + * board-zoom.h
> + *
> + * Hardware definitions for TI OMAP3 LDP/ZOOM2.
> + *
> + * Copyright (C) 2008-09 Texas Instruments Inc.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + *
> + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
> + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
> + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
> + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
> + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
> + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
> + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
> + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> + *
> + * You should have received a copy of the GNU General Public License along
> + * with this program; if not, write to the Free Software Foundation, Inc.,
> + * 675 Mass Ave, Cambridge, MA 02139, USA.
> + */
> +
> +#ifndef __ASM_ARCH_OMAP_LDP_H
> +#define __ASM_ARCH_OMAP_LDP_H
> +
> +extern void zoom_flash_init(void);
> +
> +#define LDP3430_NAND_CS               0
> +
> +#endif /* __ASM_ARCH_OMAP_LDP_H */
vimal singh - Nov. 19, 2009, 2:34 p.m.
On Thu, Nov 19, 2009 at 7:50 PM, Nishanth Menon <nm@ti.com> wrote:
> Vimal Singh had written, on 11/19/2009 08:16 AM, the following:
>>
>> From 43df1ee9e29d454100e59ee4902db157072b81b6 Mon Sep 17 00:00:00 2001
>> From: Vimal Singh <vimalsingh@ti.com>
>> Date: Thu, 19 Nov 2009 14:37:44 +0530
>> Subject: [PATCH] OMAP3: Add support for NAND on ZOOM/LDP boards
>>
>> Adding NAND support for ZOOM2/3 and LDP board.
>> I have tested it for ZOOM2 boards. Someone can verify it for LDP
>> and ZOOM3 boards, hopefully it should not have any problem.
>>
>> The size of the U-Boot environment partition was increased to 1.25MB.
>>
>> Vikram: Changed ldp name to zoom.
>>      Future boards will be called Zoom2/3/4 etc.
>>      LDP is a Zoom1. Somhow the LDP name got stuck to that.
>>
>> Signed-off-by: Vimal Singh <vimalsingh@ti.com>
>> Cc: Vikram Pandita <vikram.pandita@ti.com>
>> Cc: Tony Lindgren <tony@atomide.com>
>> ---
>>  arch/arm/mach-omap2/Makefile                 |    3 +
>>  arch/arm/mach-omap2/board-ldp.c              |    2 +
>>  arch/arm/mach-omap2/board-zoom-flash.c       |   92
>> ++++++++++++++++++++++++++
>>  arch/arm/mach-omap2/board-zoom-peripherals.c |    2 +
>>  arch/arm/plat-omap/include/plat/board-zoom.h |   36 ++++++++++
>>  5 files changed, 135 insertions(+), 0 deletions(-)
>>  create mode 100644 arch/arm/mach-omap2/board-zoom-flash.c
>>  create mode 100644 arch/arm/plat-omap/include/plat/board-zoom.h
>>
>> diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
>> index b0e5b46..c2ca76e 100644
>> --- a/arch/arm/mach-omap2/Makefile
>> +++ b/arch/arm/mach-omap2/Makefile
>> @@ -62,6 +62,7 @@ obj-$(CONFIG_MACH_OMAP_APOLLON)               +=
>> board-apollon.o
>>  obj-$(CONFIG_MACH_OMAP3_BEAGLE)                += board-omap3beagle.o \
>>                                           mmc-twl4030.o
>>  obj-$(CONFIG_MACH_OMAP_LDP)            += board-ldp.o \
>> +                                          board-zoom-flash.o \
>>                                           mmc-twl4030.o
>>  obj-$(CONFIG_MACH_OVERO)               += board-overo.o \
>>                                           mmc-twl4030.o
>> @@ -78,10 +79,12 @@ obj-$(CONFIG_MACH_NOKIA_RX51)               +=
>> board-rx51.o \
>>                                           board-rx51-peripherals.o \
>>                                           mmc-twl4030.o
>>  obj-$(CONFIG_MACH_OMAP_ZOOM2)          += board-zoom2.o \
>> +                                          board-zoom-flash.o \
>>                                           board-zoom-peripherals.o \
>>                                           mmc-twl4030.o \
>>                                           board-zoom-debugboard.o
>>  obj-$(CONFIG_MACH_OMAP_ZOOM3)          += board-zoom3.o \
>> +                                          board-zoom-flash.o \
>>                                           board-zoom-peripherals.o \
>>                                           mmc-twl4030.o \
>>                                           board-zoom-debugboard.o
>> diff --git a/arch/arm/mach-omap2/board-ldp.c
>> b/arch/arm/mach-omap2/board-ldp.c
>> index c062238..8aebdf9 100644
>> --- a/arch/arm/mach-omap2/board-ldp.c
>> +++ b/arch/arm/mach-omap2/board-ldp.c
>> @@ -42,6 +42,7 @@
>>  #include <asm/delay.h>
>>  #include <plat/control.h>
>>  #include <plat/usb.h>
>> +#include <plat/board-zoom.h>
>>
>>  #include "mmc-twl4030.h"
>>
>> @@ -385,6 +386,7 @@ static void __init omap_ldp_init(void)
>>        ads7846_dev_init();
>>        omap_serial_init();
>>        usb_musb_init();
>> +       zoom_flash_init();
>>
>>        twl4030_mmc_init(mmc);
>>        /* link regulators to MMC adapters */
>> diff --git a/arch/arm/mach-omap2/board-zoom-flash.c
>> b/arch/arm/mach-omap2/board-zoom-flash.c
>> new file mode 100644
>> index 0000000..1867d6a
>> --- /dev/null
>> +++ b/arch/arm/mach-omap2/board-zoom-flash.c
>> @@ -0,0 +1,92 @@
>> +/*
>> + * board-zoom-flash.c
>> + *
>> + * Copyright (C) 2008-09 Texas Instruments Inc.
>> + *
>> + * Modified from mach-omap2/board-2430sdp-flash.c
>> + * Author(s): Vimal Singh <vimalsingh@ti.com>
>> + *            Rohit Choraria <rohitkc@ti.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> + */
>> +
>> +#include <linux/kernel.h>
>> +#include <linux/delay.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/mtd/mtd.h>
>> +#include <linux/mtd/partitions.h>
>> +#include <linux/mtd/nand.h>
>> +#include <linux/types.h>
>> +#include <linux/io.h>
>> +
>> +#include <asm/mach/flash.h>
>> +#include <plat/board.h>
>> +#include <plat/gpmc.h>
>> +#include <plat/nand.h>
>> +
>> +#include <plat/board-zoom.h>
>> +
>> +static struct mtd_partition zoom_nand_partitions[] = {
>> +       /* All the partition sizes are listed in terms of NAND block size
>> */
>> +       {
>> +               .name           = "X-Loader-NAND",
>> +               .offset         = 0,
>> +               .size           = 4 * (64 * 2048),      /* 512KB, 0x80000
>> */
>> +               .mask_flags     = MTD_WRITEABLE,        /* force read-only
>> */
>> +       },
>> +       {
>> +               .name           = "U-Boot-NAND",
>> +               .offset         = MTDPART_OFS_APPEND,   /* Offset =
>> 0x80000 */
>> +               .size           = 10 * (64 * 2048),     /* 1.25MB,
>> 0x140000 */
>> +               .mask_flags     = MTD_WRITEABLE,        /* force read-only
>> */
>> +       },
>> +       {
>> +               .name           = "Boot Env-NAND",
>> +               .offset         = MTDPART_OFS_APPEND,   /* Offset =
>> 0x1c0000 */
>> +               .size           = 2 * (64 * 2048),      /* 256KB, 0x40000
>> */
>> +       },
>> +       {
>> +               .name           = "Kernel-NAND",
>> +               .offset         = MTDPART_OFS_APPEND,   /* Offset =
>> 0x0200000*/
>> +               .size           = 240 * (64 * 2048),    /* 30M, 0x1E00000
>> */
>> +       },
>> +       {
>> +               .name           = "File System - NAND",
>> +               .offset         = MTDPART_OFS_APPEND,   /* Offset =
>> 0x2000000 */
>> +               .size           = MTDPART_SIZ_FULL,
>> +       },
>> +};
>> +
>> +/* NAND chip access: 16 bit */
>> +static struct omap_nand_platform_data zoom_nand_data = {
>> +       .parts          = zoom_nand_partitions,
>> +       .nr_parts       = ARRAY_SIZE(zoom_nand_partitions),
>> +       .nand_setup     = NULL,
>> +       .dma_channel    = -1,   /* disable DMA in OMAP NAND driver */
>> +       .dev_ready      = NULL,
>> +       .devsize        = 1,    /* '0' for 8-bit, '1' for 16-bit device */
>> +};
>> +
>> +/**
>> + * zoom_flash_init - Identify devices connected to GPMC and register.
>> + *
>> + * @return - void.
>> + */
>> +void __init zoom_flash_init(void)
>
> Should take CS number as a parameter -> this will break SDP3630 otherwise.
>
>> +{
>> +       u8 nandcs = GPMC_CS_NUM + 1;
>> +       u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
>> +
>> +       /* pop nand part */
>> +       nandcs = LDP3430_NAND_CS;
>> +
>> +       zoom_nand_data.cs = nandcs;
>> +       zoom_nand_data.gpmc_cs_baseaddr = (void *)(gpmc_base_add +
>> +                                       GPMC_CS0_BASE + nandcs *
>> GPMC_CS_SIZE);
>> +       zoom_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
>> +
>> +       gpmc_nand_init(&zoom_nand_data);
>> +}
>> +
>> diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c
>> b/arch/arm/mach-omap2/board-zoom-peripherals.c
>> index f14baa3..fcc2836 100755
>> --- a/arch/arm/mach-omap2/board-zoom-peripherals.c
>> +++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
>> @@ -21,6 +21,7 @@
>>  #include <asm/mach/arch.h>
>>  #include <asm/mach/map.h>
>>
>> +#include <plat/board-zoom.h>
>>  #include <plat/common.h>
>>  #include <plat/usb.h>
>>
>> @@ -264,4 +265,5 @@ void __init zoom_peripherals_init(void)
>>        omap_i2c_init();
>>        omap_serial_init();
>>        usb_musb_init();
>> +       zoom_flash_init();
>
> probably should be called by board files independently. zoom-peripherals get
> used by sdp3630,zoom2, zoom3.

I did not have idea about 3630sdp. Thanks for pointing this out. I'll
re-post this patch once I get some more info about 3630sdp.

>
>>  }
>> diff --git a/arch/arm/plat-omap/include/plat/board-zoom.h
>> b/arch/arm/plat-omap/include/plat/board-zoom.h
>> new file mode 100644
>> index 0000000..8d63f7e
>> --- /dev/null
>> +++ b/arch/arm/plat-omap/include/plat/board-zoom.h
>> @@ -0,0 +1,36 @@
>> +/*
>> + * board-zoom.h
>> + *
>> + * Hardware definitions for TI OMAP3 LDP/ZOOM2.
>> + *
>> + * Copyright (C) 2008-09 Texas Instruments Inc.
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> it
>> + * under the terms of the GNU General Public License as published by the
>> + * Free Software Foundation; either version 2 of the License, or (at your
>> + * option) any later version.
>> + *
>> + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
>> + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
>> + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
>> IN
>> + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
>> + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
>> BUT
>> + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
>> + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
>> + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
>> TORT
>> + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
>> OF
>> + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>> + *
>> + * You should have received a copy of the GNU General Public License
>> along
>> + * with this program; if not, write to the Free Software Foundation,
>> Inc.,
>> + * 675 Mass Ave, Cambridge, MA 02139, USA.
>> + */
>> +
>> +#ifndef __ASM_ARCH_OMAP_LDP_H
>> +#define __ASM_ARCH_OMAP_LDP_H
>> +
>> +extern void zoom_flash_init(void);
>> +
>> +#define LDP3430_NAND_CS               0
>> +
>> +#endif /* __ASM_ARCH_OMAP_LDP_H */
>
>
> --
> Regards,
> Nishanth Menon
> --
> To unsubscribe from this list: send the line "unsubscribe linux-omap" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

Patch

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index b0e5b46..c2ca76e 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -62,6 +62,7 @@  obj-$(CONFIG_MACH_OMAP_APOLLON)		+= board-apollon.o
 obj-$(CONFIG_MACH_OMAP3_BEAGLE)		+= board-omap3beagle.o \
 					   mmc-twl4030.o
 obj-$(CONFIG_MACH_OMAP_LDP)		+= board-ldp.o \
+					   board-zoom-flash.o \
 					   mmc-twl4030.o
 obj-$(CONFIG_MACH_OVERO)		+= board-overo.o \
 					   mmc-twl4030.o
@@ -78,10 +79,12 @@  obj-$(CONFIG_MACH_NOKIA_RX51)		+= board-rx51.o \
 					   board-rx51-peripherals.o \
 					   mmc-twl4030.o
 obj-$(CONFIG_MACH_OMAP_ZOOM2)		+= board-zoom2.o \
+ 					   board-zoom-flash.o \
 					   board-zoom-peripherals.o \
 					   mmc-twl4030.o \
 					   board-zoom-debugboard.o
 obj-$(CONFIG_MACH_OMAP_ZOOM3)		+= board-zoom3.o \
+ 					   board-zoom-flash.o \
 					   board-zoom-peripherals.o \
 					   mmc-twl4030.o \
 					   board-zoom-debugboard.o
diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index c062238..8aebdf9 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -42,6 +42,7 @@ 
 #include <asm/delay.h>
 #include <plat/control.h>
 #include <plat/usb.h>
+#include <plat/board-zoom.h>

 #include "mmc-twl4030.h"

@@ -385,6 +386,7 @@  static void __init omap_ldp_init(void)
 	ads7846_dev_init();
 	omap_serial_init();
 	usb_musb_init();
+	zoom_flash_init();

 	twl4030_mmc_init(mmc);
 	/* link regulators to MMC adapters */
diff --git a/arch/arm/mach-omap2/board-zoom-flash.c
b/arch/arm/mach-omap2/board-zoom-flash.c
new file mode 100644
index 0000000..1867d6a
--- /dev/null
+++ b/arch/arm/mach-omap2/board-zoom-flash.c
@@ -0,0 +1,92 @@ 
+/*
+ * board-zoom-flash.c
+ *
+ * Copyright (C) 2008-09 Texas Instruments Inc.
+ *
+ * Modified from mach-omap2/board-2430sdp-flash.c
+ * Author(s): Vimal Singh <vimalsingh@ti.com>
+ *            Rohit Choraria <rohitkc@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand.h>
+#include <linux/types.h>
+#include <linux/io.h>
+
+#include <asm/mach/flash.h>
+#include <plat/board.h>
+#include <plat/gpmc.h>
+#include <plat/nand.h>
+
+#include <plat/board-zoom.h>
+
+static struct mtd_partition zoom_nand_partitions[] = {
+	/* All the partition sizes are listed in terms of NAND block size */
+	{
+		.name		= "X-Loader-NAND",
+		.offset		= 0,
+		.size		= 4 * (64 * 2048),	/* 512KB, 0x80000 */
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	{
+		.name		= "U-Boot-NAND",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
+		.size		= 10 * (64 * 2048),	/* 1.25MB, 0x140000 */
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	{
+		.name		= "Boot Env-NAND",
+		.offset		= MTDPART_OFS_APPEND,   /* Offset = 0x1c0000 */
+		.size		= 2 * (64 * 2048),	/* 256KB, 0x40000 */
+	},
+	{
+		.name		= "Kernel-NAND",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x0200000*/
+		.size		= 240 * (64 * 2048),	/* 30M, 0x1E00000 */
+	},
+	{
+		.name		= "File System - NAND",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x2000000 */
+		.size		= MTDPART_SIZ_FULL,
+	},
+};
+
+/* NAND chip access: 16 bit */
+static struct omap_nand_platform_data zoom_nand_data = {
+	.parts		= zoom_nand_partitions,
+	.nr_parts	= ARRAY_SIZE(zoom_nand_partitions),
+	.nand_setup	= NULL,
+	.dma_channel	= -1,	/* disable DMA in OMAP NAND driver */
+	.dev_ready	= NULL,
+	.devsize	= 1,	/* '0' for 8-bit, '1' for 16-bit device */
+};
+
+/**
+ * zoom_flash_init - Identify devices connected to GPMC and register.
+ *
+ * @return - void.
+ */
+void __init zoom_flash_init(void)
+{
+	u8 nandcs = GPMC_CS_NUM + 1;
+	u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
+
+	/* pop nand part */
+	nandcs = LDP3430_NAND_CS;
+
+	zoom_nand_data.cs = nandcs;
+	zoom_nand_data.gpmc_cs_baseaddr = (void *)(gpmc_base_add +
+					GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
+	zoom_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
+
+	gpmc_nand_init(&zoom_nand_data);
+}
+
diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c
b/arch/arm/mach-omap2/board-zoom-peripherals.c
index f14baa3..fcc2836 100755
--- a/arch/arm/mach-omap2/board-zoom-peripherals.c
+++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
@@ -21,6 +21,7 @@ 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>

+#include <plat/board-zoom.h>
 #include <plat/common.h>
 #include <plat/usb.h>

@@ -264,4 +265,5 @@  void __init zoom_peripherals_init(void)
 	omap_i2c_init();
 	omap_serial_init();
 	usb_musb_init();
+	zoom_flash_init();
 }
diff --git a/arch/arm/plat-omap/include/plat/board-zoom.h
b/arch/arm/plat-omap/include/plat/board-zoom.h
new file mode 100644
index 0000000..8d63f7e
--- /dev/null
+++ b/arch/arm/plat-omap/include/plat/board-zoom.h
@@ -0,0 +1,36 @@ 
+/*
+ * board-zoom.h
+ *
+ * Hardware definitions for TI OMAP3 LDP/ZOOM2.
+ *
+ * Copyright (C) 2008-09 Texas Instruments Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __ASM_ARCH_OMAP_LDP_H
+#define __ASM_ARCH_OMAP_LDP_H
+
+extern void zoom_flash_init(void);
+
+#define LDP3430_NAND_CS               0
+
+#endif /* __ASM_ARCH_OMAP_LDP_H */