Subject: [PATCH] mmc: meson-gx: set max block count to 256

From: [email-masked] (Kevin Hilman)
Date: Fri, 27 Jan 2017 10:28:22 -0800

Heiner Kallweit <[email-masked]> writes:

> So far max_blk_count isn't set what results in a default of value 8
> to be used (PAGE_SIZE / block size).
>
> Set max_blk_count to 256 as used in the uboot driver.
>
> Signed-off-by: Heiner Kallweit <[email-masked]>

Thanks for the patch. A minor comment below:

> ---
>  drivers/mmc/host/meson-gx-mmc.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
> index 3308b5b6..030425be 100644
> --- a/drivers/mmc/host/meson-gx-mmc.c
> +++ b/drivers/mmc/host/meson-gx-mmc.c
> @@ -799,6 +799,7 @@ static int meson_mmc_probe(struct platform_device *pdev)
>  		goto free_host;
>  	}
>  
> +	mmc->max_blk_count = 256;

A step in the right direction, but the # blocks is actually a 9-bit
field (c.f. length field of cmd_cfg part of descriptor (bits 8:0).

So this should be more like:

	/* blk count is 'length' field of cmd_cfg part of descriptor */
	mmc->max_blk_count = CMD_CFG_LENGTH_MASK + 1;

I tested that change locally, so after changing that, please resend and
feel free to add:

Reviewed-by: Kevin Hilman <[email-masked]>
Tested-by: Kevin Hilman <[email-masked]>

Kevin