linux-kernel - Re: [PATCH] OMAP3: NAND: Adding NAND support and specifying NAND partitions.

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Date:	Tue, 26 Jul 2011 12:38:46 +0300
From:	Grazvydas Ignotas <notasas@...il.com>
To:	Hrishikesh Bhandiwad <hrishikesh.b@...com>
Cc:	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
	Vaibhav Hiremath <hvaibhav@...com>,
	Sanjeev Premi <premi@...com>
Subject: Re: [PATCH] OMAP3: NAND: Adding NAND support and specifying NAND partitions.

On Mon, Jul 25, 2011 at 4:40 PM, Hrishikesh Bhandiwad
<hrishikesh.b@...com> wrote:
> This patch adds the NAND support on OMAP3EVM board and also allocates
> five partitions  on NAND.
> Referred to file: arch/arm/mach-omap2/board-omap3beagle.c
>
> Signed-off-by: Vaibhav Hiremath <hvaibhav@...com>
> Signed-off-by: Sanjeev Premi <premi@...com>
> Signed-off-by: Hrishikesh Bhandiwad <hrishikesh.b@...com>
> ---
>  arch/arm/mach-omap2/board-omap3evm.c |   40 ++++++++++++++++++++++++++++++++++
>  1 files changed, 40 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
> index b4d4346..be45b63 100644
> --- a/arch/arm/mach-omap2/board-omap3evm.c
> +++ b/arch/arm/mach-omap2/board-omap3evm.c
> @@ -30,6 +30,10 @@
>  #include <linux/usb/otg.h>
>  #include <linux/smsc911x.h>
>
> +#include <linux/mtd/mtd.h>

You don't need this include.

> +#include <linux/mtd/partitions.h>
> +#include <linux/mtd/nand.h>
> +
>  #include <linux/wl12xx.h>
>  #include <linux/regulator/fixed.h>
>  #include <linux/regulator/machine.h>
> @@ -46,6 +50,8 @@
>  #include <plat/mcspi.h>
>  #include <video/omapdss.h>
>  #include <video/omap-panel-generic-dpi.h>
> +#include <plat/gpmc.h>
> +#include <plat/nand.h>

These 2 too.

>
>  #include "mux.h"
>  #include "sdram-micron-mt46h32m32lf-6.h"
> @@ -101,6 +107,37 @@ static void __init omap3_evm_get_revision(void)
>        }
>  }
>
> +static struct mtd_partition omap3evm_nand_partitions[] = {
> +       /* All the partition sizes are listed in terms of NAND block size */
> +       {
> +               .name           = "X-Loader",
> +               .offset         = 0,
> +               .size           = 4 * NAND_BLOCK_SIZE,
> +               .mask_flags     = MTD_WRITEABLE,        /* force read-only */
> +       },
> +       {
> +               .name           = "U-Boot",
> +               .offset         = 0x80000

Missing comma. Have you at least tried compiling this?

> +               .size           = 15 * NAND_BLOCK_SIZE,
> +               .mask_flags     = MTD_WRITEABLE,        /* force read-only */
> +       },
> +       {
> +               .name           = "U-Boot Env",
> +               .offset         = 0x260000
> +               .size           = 1 * NAND_BLOCK_SIZE,
> +       },
> +       {
> +               .name           = "Kernel",
> +               .offset         = 0x280000
> +               .size           = 32 * NAND_BLOCK_SIZE,
> +       },
> +       {
> +               .name           = "File System",
> +               .offset         = 0x680000
> +               .size           = MTDPART_SIZ_FULL,
> +       },
> +};
> +
>  #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
>  #include <plat/gpmc-smsc911x.h>
>
> @@ -696,6 +733,9 @@ static void __init omap3_evm_init(void)
>
>        omap_serial_init();
>
> +       omap_nand_flash_init(NAND_BUSWIDTH_16, omap3evm_nand_partitions,
> +                       ARRAY_SIZE(omap3evm_nand_partitions));
> +
>        /* OMAP3EVM uses ISP1504 phy and so register nop transceiver */
>        usb_nop_xceiv_register();
>
> --
> 1.6.2.4
>
> --
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>

-- 
Gražvydas
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