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From: Christoph Fritz <chf.fritz@googlemail.com>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Shawn Lin <shawn.lin@rock-chips.com>,
	linux-mmc <linux-mmc@vger.kernel.org>
Subject: [PATCH v3] mmc: core: apply NO_CMD23 quirk to some specific cards
Date: Sat, 09 Dec 2017 23:47:55 +0100	[thread overview]
Message-ID: <1512859675.7186.8.camel@googlemail.com> (raw)
In-Reply-To: <1512859465.7186.4.camel@googlemail.com>

To get an usdhc Apacer and some ATP SD cards work reliable, CMD23 needs
to be disabled.  This has been tested on i.MX6 (sdhci-esdhc) and rk3288
(dw_mmc-rockchip).

Without this patch on i.MX6 (sdhci-esdhc):

 $ dd if=/dev/urandom of=/mnt/test bs=1M count=10 conv=fsync

    | <mmc0: starting CMD23 arg 00000400 flags 00000015>
    | mmc0: starting CMD25 arg 00a71f00 flags 000000b5
    | mmc0:     blksz 512 blocks 1024 flags 00000100 tsac 3000 ms nsac 0
    | mmc0:     CMD12 arg 00000000 flags 0000049d
    | sdhci [sdhci_irq()]: *** mmc0 got interrupt: 0x00000001
    | mmc0: Timeout waiting for hardware interrupt.

Without this patch on rk3288 (dw_mmc-rockchip):

    | mmc1: Card stuck in programming state! mmcblk1 card_busy_detect
    | dwmmc_rockchip ff0c0000.dwmmc: Busy; trying anyway
    | mmc_host mmc1: Bus speed (slot 0) = 400000Hz (slot req 400000Hz,
    | actual 400000HZ div = 0)
    | mmc1: card never left busy state
    | mmc1: tried to reset card, got error -110
    | blk_update_request: I/O error, dev mmcblk1, sector 139778
    | Buffer I/O error on dev mmcblk1p1, logical block 131586, lost async
    | page write

Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
---
Changes since v1:
 - s/CMD32/CMD23
Changes since v2:
 - add an Apacer card
 - adapt comment

 drivers/mmc/core/card.h   | 2 ++
 drivers/mmc/core/quirks.h | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/mmc/core/card.h b/drivers/mmc/core/card.h
index f06cd91..79a5b98 100644
--- a/drivers/mmc/core/card.h
+++ b/drivers/mmc/core/card.h
@@ -75,9 +75,11 @@ struct mmc_fixup {
 #define EXT_CSD_REV_ANY (-1u)
 
 #define CID_MANFID_SANDISK      0x2
+#define CID_MANFID_ATP          0x9
 #define CID_MANFID_TOSHIBA      0x11
 #define CID_MANFID_MICRON       0x13
 #define CID_MANFID_SAMSUNG      0x15
+#define CID_MANFID_APACER       0x27
 #define CID_MANFID_KINGSTON     0x70
 #define CID_MANFID_HYNIX	0x90
 
diff --git a/drivers/mmc/core/quirks.h b/drivers/mmc/core/quirks.h
index 9107f0b..d4ff9d8 100644
--- a/drivers/mmc/core/quirks.h
+++ b/drivers/mmc/core/quirks.h
@@ -53,6 +53,14 @@ static const struct mmc_fixup mmc_blk_fixups[] = {
 		  MMC_QUIRK_BLK_NO_CMD23),
 
 	/*
+	 * Some SD cards lockup while using CMD23 multiblock transfers.
+	 */
+	MMC_FIXUP("AF SD", CID_MANFID_ATP, CID_OEMID_ANY, add_quirk_sd,
+		  MMC_QUIRK_BLK_NO_CMD23),
+	MMC_FIXUP("APUSD", CID_MANFID_APACER, 0x5048, add_quirk_sd,
+		  MMC_QUIRK_BLK_NO_CMD23),
+
+	/*
 	 * Some MMC cards need longer data read timeout than indicated in CSD.
 	 */
 	MMC_FIXUP(CID_NAME_ANY, CID_MANFID_MICRON, 0x200, add_quirk_mmc,
-- 
2.1.4


  reply	other threads:[~2017-12-09 22:47 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-09 23:12 [PATCH] mmc: block: apply NO_CMD32 quirk to an ATP card Christoph Fritz
2017-09-09 23:44 ` [PATCH v2] mmc: core: apply NO_CMD23 " Christoph Fritz
2017-09-22  8:42   ` Ulf Hansson
2017-09-22  9:26     ` Shawn Lin
2017-09-23 19:51       ` Christoph Fritz
2017-09-25  3:33         ` Shawn Lin
2017-09-25 11:23           ` Christoph Fritz
2017-09-26  0:56             ` Shawn Lin
2017-12-04 13:38               ` Christoph Fritz
2017-12-09 22:44                 ` Christoph Fritz
2017-12-09 22:47                   ` Christoph Fritz [this message]
2017-12-11 13:00                     ` [PATCH v3] mmc: core: apply NO_CMD23 quirk to some specific cards Ulf Hansson
2017-12-11 20:19                       ` Christoph Fritz

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