From mboxrd@z Thu Jan 1 00:00:00 1970 From: alex lemberg Subject: [PATCH 2/3] mmc: Adding AUTO_BKOPS_EN bit set for Auto BKOPS support Date: Thu, 1 Sep 2016 17:24:49 +0300 Message-ID: <1472739890-3384-3-git-send-email-alex.lemberg@sandisk.com> References: <1472739890-3384-1-git-send-email-alex.lemberg@sandisk.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from mail-by2nam01on0052.outbound.protection.outlook.com ([104.47.34.52]:5504 "EHLO NAM01-BY2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932583AbcIAOnx (ORCPT ); Thu, 1 Sep 2016 10:43:53 -0400 In-Reply-To: <1472739890-3384-1-git-send-email-alex.lemberg@sandisk.com> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: ulf.hansson@linaro.org, linux-mmc@vger.kernel.org Cc: avi.shchislowski@sandisk.com, alex lemberg Signed-off-by: alex lemberg --- drivers/mmc/core/mmc.c | 6 ++++++ include/linux/mmc/card.h | 1 + include/linux/mmc/mmc.h | 1 + 3 files changed, 8 insertions(+) diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index f2d185c..e2e987f 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -531,6 +531,12 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd) if (!card->ext_csd.man_bkops_en) pr_debug("%s: MAN_BKOPS_EN bit is not set\n", mmc_hostname(card->host)); + card->ext_csd.auto_bkops_en = + (ext_csd[EXT_CSD_BKOPS_EN] & + EXT_CSD_AUTO_BKOPS_MASK); + if (!card->ext_csd.auto_bkops_en) + pr_debug("%s: AUTO_BKOPS_EN bit is not set\n", + mmc_hostname(card->host)); } /* check whether the eMMC card supports HPI */ diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 73fad83..aaedb68 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -84,6 +84,7 @@ struct mmc_ext_csd { unsigned int hpi_cmd; /* cmd used as HPI */ bool bkops; /* background support bit */ bool man_bkops_en; /* manual bkops enable bit */ + bool auto_bkops_en; /* auto bkops enable bit */ unsigned int data_sector_size; /* 512 bytes or 4KB */ unsigned int data_tag_unit_size; /* DATA TAG UNIT size */ unsigned int boot_ro_lock; /* ro lock support */ diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index c376209..0fe3908 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -436,6 +436,7 @@ struct _mmc_csd { * BKOPS modes */ #define EXT_CSD_MANUAL_BKOPS_MASK 0x01 +#define EXT_CSD_AUTO_BKOPS_MASK 0x02 /* * MMC_SWITCH access modes -- 1.9.1