Re: [Qemu-devel] [PATCH v3 10/18] sdcard: handle CMD54 (SDIO)

[Alistair Francis]

On Mon, Jan 22, 2018 at 7:30 PM, Philippe Mathieu-Daudé <address@hidden> wrote:
> Linux uses it to poll the bus before polling for a card.
>
> Signed-off-by: Philippe Mathieu-Daudé <address@hidden>

Reviewed-by: Alistair Francis <address@hidden>

Alistair

> ---
>  hw/sd/sd.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/hw/sd/sd.c b/hw/sd/sd.c
> index 07424aa56e..bbf9496e8a 100644
> --- a/hw/sd/sd.c
> +++ b/hw/sd/sd.c
> @@ -1378,9 +1378,8 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, 
> SDRequest req)
>          }
>          break;
>
> -    case 52:
> -    case 53:
> -        /* CMD52, CMD53: reserved for SDIO cards
> +    case 52 ... 54:
> +        /* CMD52, CMD53, CMD54: reserved for SDIO cards
>           * (see the SDIO Simplified Specification V2.0)
>           * Handle as illegal command but do not complain
>           * on stderr, as some OSes may use these in their
> --
> 2.15.1
>
>