[PATCH linux dev-4.10 2/3] mtd: spi-nor: aspeed: fix physical base address of chip

[Joel Stanley]

On Thu, Mar 23, 2017 at 7:12 PM, Cédric Le Goater <clg at kaod.org> wrote:
> The phys_base address is used to trigger DMAs on a chip and to address
> the correct CS, it should take into account the offset of the chip in
> the AHB bus window.
>
> Signed-off-by: Cédric Le Goater <clg at kaod.org>

Reviewed-by: Joel Stanley <joel at jms.id.au>

> ---
>  drivers/mtd/spi-nor/aspeed-smc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/spi-nor/aspeed-smc.c b/drivers/mtd/spi-nor/aspeed-smc.c
> index d5d8b2d6e06b..b3c8cfe29765 100644
> --- a/drivers/mtd/spi-nor/aspeed-smc.c
> +++ b/drivers/mtd/spi-nor/aspeed-smc.c
> @@ -693,7 +693,7 @@ static int aspeed_smc_chip_setup_init(struct aspeed_smc_chip *chip,
>                 return -EINVAL;
>         }
>
> -       chip->phys_base = res->start;
> +       chip->phys_base = res->start + (chip->ahb_base - controller->ahb_base);
>
>         /*
>          * Get value of the inherited control register. U-Boot usually
> --
> 2.7.4
>