Re: [Qemu-devel] [PATCH 13/14] sdhci: add sdhci_init_capareg() to initialize the CAPAB register

[Alistair Francis <alistair.francis@xilinx.com>]

On Wed, Dec 13, 2017 at 11:58 AM, Philippe Mathieu-Daudé
<f4bug@amsat.org> wrote:
> following patches modifying CAPAB will be easier to review.
>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---
>  hw/sd/sdhci.c | 12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c
> index dadc4787b2..78bb8e8e89 100644
> --- a/hw/sd/sdhci.c
> +++ b/hw/sd/sdhci.c
> @@ -100,6 +100,13 @@
>
>  #define MASKED_WRITE(reg, mask, val)  (reg = (reg & (mask)) | (val))
>
> +static void sdhci_init_capareg(SDHCIState *s, Error **errp)
> +{
> +    if (s->capareg == UINT32_MAX) {
> +        s->capareg = SDHC_CAPAB_REG_DEFAULT;
> +    }
> +}
> +
>  static uint8_t sdhci_slotint(SDHCIState *s)
>  {
>      return (s->norintsts & s->norintsigen) || (s->errintsts & s->errintsigen) ||
> @@ -1158,6 +1165,8 @@ static void sdhci_initfn(SDHCIState *s)
>
>  static void sdhci_realizefn(SDHCIState *s, Error **errp)
>  {
> +    sdhci_init_capareg(s, errp);
> +
>      s->buf_maxsz = sdhci_get_fifolen(s);
>      s->fifo_buffer = g_malloc0(s->buf_maxsz);
>
> @@ -1244,8 +1253,7 @@ const VMStateDescription sdhci_vmstate = {
>  /* Capabilities registers provide information on supported features of this
>   * specific host controller implementation */
>  static Property sdhci_properties[] = {
> -    DEFINE_PROP_UINT32("capareg", SDHCIState, capareg,
> -            SDHC_CAPAB_REG_DEFAULT),
> +    DEFINE_PROP_UINT32("capareg", SDHCIState, capareg, UINT32_MAX),

This looks like a step in the wrong direction.

If this is required to do something smarter latter it should probably
be in that series.

Alistair

>      DEFINE_PROP_UINT32("maxcurr", SDHCIState, maxcurr, 0),
>      DEFINE_PROP_BOOL("pending-insert-quirk", SDHCIState, pending_insert_quirk,
>                       false),
> --
> 2.15.1
>
>