[PATCH u-boot v2016.07-aspeed-openbmc] Add MTD support to Aspeed Flash driver

[Andrew Jeffery]

On Mon, 2017-08-07 at 16:20 -0500, Adriana Kobylak wrote:
> Add support to the aspeed flash driver to enable the common mtd layer
> through CONFIG_FLASH_CFI_MTD.
> 
> This enables the flash to be used by u-boot mtd drivers including
> the mtdparts and ubi commands.
> 
> > Signed-off-by: Adriana Kobylak <anoo at linux.vnet.ibm.com>
> Acked-by: Milton Miller <miltonm at us.ibm.com>

Hmm, the flash situation looks pretty messy. I guess the duplication is
warranted for the moment.

Applied with Milton's ack.

Thanks,

Andrew

> ---
>  arch/arm/mach-aspeed/flash.c | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/arch/arm/mach-aspeed/flash.c b/arch/arm/mach-aspeed/flash.c
> index 9c5ead6..e1e3cf8 100644
> --- a/arch/arm/mach-aspeed/flash.c
> +++ b/arch/arm/mach-aspeed/flash.c
> > @@ -124,6 +124,22 @@ flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];		/* FLASH chips info */
>  /* specificspi */
> >  #define SpecificSPI_N25Q512	0x00000001
>  
> +#ifdef CONFIG_FLASH_CFI_MTD
> +static uint flash_verbose=1;
> +void flash_set_verbose(uint v)
> +{
> > +	flash_verbose = v;
> +}
> +
> +unsigned long flash_sector_size(flash_info_t *info, flash_sect_t sect)
> +{
> > +	if (sect != (info->sector_count - 1))
> > +		return info->start[sect + 1] - info->start[sect];
> > +	else
> > +		return info->start[0] + info->size - info->start[sect];
> +}
> +#endif
> +
>  /*-----------------------------------------------------------------------*/
>  static u32 ast_spi_calculate_divisor(u32 max_speed_hz)
>  {
> @@ -1372,6 +1388,10 @@ unsigned long flash_init (void)
> >  		       flash_get_info(CONFIG_ENV_ADDR_REDUND));
>  #endif
>  
> +#ifdef CONFIG_FLASH_CFI_MTD
> > +	cfi_mtd_init();
> +#endif
> +
> >  	return (size);
>  }
>  
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