[U-Boot] [PATCH v5 05/11] arm, davinci: add support for new spl framework

[Scott Wood <scottwood@freescale.com>]

On 10/30/2011 11:53 PM, Heiko Schocher wrote:
> diff --git a/arch/arm/cpu/arm926ejs/davinci/spl_nand.c b/arch/arm/cpu/arm926ejs/davinci/spl_nand.c
> new file mode 100644
> index 0000000..efc0521
> --- /dev/null
> +++ b/arch/arm/cpu/arm926ejs/davinci/spl_nand.c
> @@ -0,0 +1,57 @@
> +/*
> + * Copyright (C) 2011
> + * Heiko Schocher, DENX Software Engineering, hs at denx.de.
> + *
> + * 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 program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * 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., 59 Temple Place, Suite 330, Boston,
> + * MA 02111-1307 USA
> + */
> +
> +#include <common.h>
> +#include <nand.h>
> +#include <asm/io.h>

Does this file use anything from asm/io.h?

> +/*
> + * The main entry for NAND booting. It's necessary that SDRAM is already
> + * configured and available since this code loads the main U-Boot image
> + * from NAND into SDRAM and starts it from there.
> + */
> +void nand_boot(void)
> +{
> +	int ret;
> +	__attribute__((noreturn)) void (*uboot)(void);
> +
> +	/*
> +	 * Load U-Boot image from NAND into RAM
> +	 */
> +	ret =  nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
> +			CONFIG_SYS_NAND_U_BOOT_SIZE,
> +		(void *)CONFIG_SYS_NAND_U_BOOT_DST);
> +
> +#ifdef CONFIG_NAND_ENV_DST
> +	ret =  nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
> +		(void *)CONFIG_NAND_ENV_DST);
> +
> +#ifdef CONFIG_ENV_OFFSET_REDUND
> +	ret =  nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, CONFIG_ENV_SIZE,
> +		(void *)CONFIG_NAND_ENV_DST + CONFIG_ENV_SIZE);
> +#endif
> +#endif
> +
> +	/*
> +	 * Jump to U-Boot image
> +	 */
> +	uboot = (void *)CONFIG_SYS_NAND_U_BOOT_START;
> +	(*uboot)();
> +}

This is common to most NAND SPLs.  It would be nice to stick this in a
common place (at least the loading part, maybe not the jump).  Not
nand_spl_simple.c, as it's utility is not limited to the simple driver.
 Maybe drivers/mtd/nand/nand_spl_load.c?

-Scott