[PATCH 4.14 021/178] mmc: core: apply NO_CMD23 quirk to some specific cards

From: Greg Kroah-Hartman
Date: Mon Dec 18 2017 - 11:11:21 EST


4.14-stable review patch. If anyone has any objections, please let me know.

------------------

From: Christoph Fritz <chf.fritz@xxxxxxxxxxxxxx>

commit 91516a2a4734614d62ee3ed921f8f88acc67c000 upstream.

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@xxxxxxxxxxxxxx>
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

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

--- 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

--- a/drivers/mmc/core/quirks.h
+++ b/drivers/mmc/core/quirks.h
@@ -53,6 +53,14 @@ static const struct mmc_fixup mmc_blk_fi
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,