From mboxrd@z Thu Jan  1 00:00:00 1970
From: Troy Kisky <troy.kisky@boundarydevices.com>
Date: Mon, 13 Aug 2012 14:04:28 -0700
Subject: [U-Boot] [PATCH 13/13] mxc nand: Add support for i.MX5
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On 8/13/2012 1:51 PM, Beno?t Th?baudeau wrote:
> Signed-off-by: Beno?t Th?baudeau <benoit.thebaudeau@advansee.com>
> Cc: Scott Wood <scottwood@freescale.com>
> Cc: Stefano Babic <sbabic@denx.de>
> ---
>   .../arch/arm/include/asm/arch-mx5/imx-regs.h       |    9 +
>   .../drivers/mtd/nand/mxc_nand.c                    |  217 +++++++++++++++-----
>   .../include/fsl_nfc.h                              |  149 +++++++++-----
>   .../nand_spl/nand_boot_fsl_nfc.c                   |  114 +++++++---
>   4 files changed, 363 insertions(+), 126 deletions(-)
>
> diff --git u-boot-4d3c95f.orig/arch/arm/include/asm/arch-mx5/imx-regs.h u-boot-4d3c95f/arch/arm/include/asm/arch-mx5/imx-regs.h
> index 7f66b61..55e9660 100644
> --- u-boot-4d3c95f.orig/arch/arm/include/asm/arch-mx5/imx-regs.h
> +++ u-boot-4d3c95f/arch/arm/include/asm/arch-mx5/imx-regs.h
> @@ -232,6 +232,15 @@
>   #define CS0_32M_CS1_32M_CS2_32M_CS3_32M		3
>   
>   /*
> + * SRC register definitions
> + */
> +#if defined(CONFIG_MX51)
> +#define SRC_SBMR_NF16B		(1 << 2)
> +#elif defined(CONFIG_MX53)
> +#define SRC_SBMR_NF16B		(1 << 13)
> +#endif
> +
>
You could give an error if a multi-platform  kernel has both defined, if 
a run-time check is too difficult.