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Re: [RFC PATCH 13/15] sd: emmc: Subtract bootarea size from blk


From: Alistair Francis
Subject: Re: [RFC PATCH 13/15] sd: emmc: Subtract bootarea size from blk
Date: Fri, 12 Feb 2021 14:11:39 -0800

On Thu, Feb 11, 2021 at 12:25 AM Sai Pavan Boddu
<sai.pavan.boddu@xilinx.com> wrote:
>
> From: Joel Stanley <joel@jms.id.au>
>
> The userdata size is derived from the file the user passes on the
> command line, but we must take into account the boot areas.
>
> Signed-off-by: Joel Stanley <joel@jms.id.au>
> Signed-off-by: C├ędric Le Goater <clg@kaod.org>

Acked-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  hw/sd/sd.c | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/hw/sd/sd.c b/hw/sd/sd.c
> index 55c1104..a2f39c9 100644
> --- a/hw/sd/sd.c
> +++ b/hw/sd/sd.c
> @@ -658,6 +658,11 @@ static void sd_reset(DeviceState *dev)
>      }
>      size = sect << 9;
>
> +    if (sd->emmc) {
> +        unsigned int boot_capacity = sd->ext_csd[EXT_CSD_BOOT_MULT] << 17;
> +        size -= boot_capacity * 2;
> +    }
> +
>      sect = sd_addr_to_wpnum(size) + 1;
>
>      sd->state = sd_idle_state;
> --
> 2.7.4
>
>



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