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mmc: core: Introduce MMC_CAP2_NO_SDIO cap

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This patch introduce a new MMC_CAP2_NO_SDIO cap used to tell the mmc
core to not send SDIO specific commands.

Signed-off-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Carlo Caione
2015-11-25 15:39:51 +01:00
committed by Ulf Hansson
parent 17da678368
commit 100a606d54
2 changed files with 9 additions and 3 deletions
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11
drivers/mmc/core/core.c
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@@ -2476,15 +2476,20 @@ static int mmc_rescan_try_freq(struct mmc_host *host, unsigned freq)
* sdio_reset sends CMD52 to reset card. Since we do not know
* if the card is being re-initialized, just send it. CMD52
* should be ignored by SD/eMMC cards.
* Skip it if we already know that we do not support SDIO commands
*/
sdio_reset(host);
if (!(host->caps2 & MMC_CAP2_NO_SDIO))
sdio_reset(host);
mmc_go_idle(host);
mmc_send_if_cond(host, host->ocr_avail);
/* Order's important: probe SDIO, then SD, then MMC */
if (!mmc_attach_sdio(host))
return 0;
if (!(host->caps2 & MMC_CAP2_NO_SDIO))
if (!mmc_attach_sdio(host))
return 0;
if (!mmc_attach_sd(host))
return 0;
if (!mmc_attach_mmc(host))