GIGASTONE Gaming Plus microSD cards manufactured on 02/2022 report that
they support poweroff notification and cache, but they are not working
correctly.
Flush Cache bit never gets cleared in sd_flush_cache() and Poweroff
Notification Ready bit also never gets set to 1 within 1 second from the
end of busy of CMD49 in sd_poweroff_notify().
This leads to I/O error and runtime PM error state.
I observed that the same card manufactured on 01/2024 works as expected.
This problem seems similar to the Kingston cards fixed with
commit c467c8f08185 ("mmc: Add MMC_QUIRK_BROKEN_SD_CACHE for Kingston
Canvas Go Plus from 11/2019") and should be handled using quirks.
CID for the problematic card is here.
12345641535443002000000145016200
Manufacturer ID is 0x12 and defined as CID_MANFID_GIGASTONE as of now,
but would like comments on what naming is appropriate because MID list
is not public and not sure it's right.
Signed-off-by: Keita Aihara <keita.aihara@xxxxxxxx>
---
drivers/mmc/core/card.h | 7 +++++++
drivers/mmc/core/quirks.h | 9 +++++++++
drivers/mmc/core/sd.c | 2 +-
include/linux/mmc/card.h | 1 +
4 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/core/card.h b/drivers/mmc/core/card.h
index b7754a1b8d97..8476754b1b17 100644
--- a/drivers/mmc/core/card.h
+++ b/drivers/mmc/core/card.h
@@ -82,6 +82,7 @@ struct mmc_fixup {
#define CID_MANFID_SANDISK_SD 0x3
#define CID_MANFID_ATP 0x9
#define CID_MANFID_TOSHIBA 0x11
+#define CID_MANFID_GIGASTONE 0x12
#define CID_MANFID_MICRON 0x13
#define CID_MANFID_SAMSUNG 0x15
#define CID_MANFID_APACER 0x27
@@ -284,4 +285,10 @@ static inline int mmc_card_broken_cache_flush(const struct mmc_card *c)
{
return c->quirks & MMC_QUIRK_BROKEN_CACHE_FLUSH;
}
+
+static inline int mmc_card_broken_sd_poweroff_notify(const struct mmc_card *c)
+{
+ return c->quirks & MMC_QUIRK_BROKEN_SD_POWEROFF_NOTIFY;
+}
+
#endif
diff --git a/drivers/mmc/core/quirks.h b/drivers/mmc/core/quirks.h
index 92905fc46436..89b512905be1 100644
--- a/drivers/mmc/core/quirks.h
+++ b/drivers/mmc/core/quirks.h
@@ -25,6 +25,15 @@ static const struct mmc_fixup __maybe_unused mmc_sd_fixups[] = {
0, -1ull, SDIO_ANY_ID, SDIO_ANY_ID, add_quirk_sd,
MMC_QUIRK_BROKEN_SD_CACHE, EXT_CSD_REV_ANY),
+ /*
+ * GIGASTONE Gaming Plus microSD cards manufactured on 02/2022 never
+ * clear Flush Cache bit and set Poweroff Notification Ready bit.
+ */
+ _FIXUP_EXT("ASTC", CID_MANFID_GIGASTONE, 0x3456, 2022, 2,
+ 0, -1ull, SDIO_ANY_ID, SDIO_ANY_ID, add_quirk_sd,
+ MMC_QUIRK_BROKEN_SD_CACHE | MMC_QUIRK_BROKEN_SD_POWEROFF_NOTIFY,
+ EXT_CSD_REV_ANY),
+
END_FIXUP
};
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index ee37ad14e79e..0ec550ad5651 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -1118,7 +1118,7 @@ static int sd_parse_ext_reg_power(struct mmc_card *card, u8 fno, u8 page,
card->ext_power.rev = reg_buf[0] & 0xf;
/* Power Off Notification support at bit 4. */
- if (reg_buf[1] & BIT(4))
+ if ((reg_buf[1] & BIT(4)) && !mmc_card_broken_sd_poweroff_notify(card))
card->ext_power.feature_support |= SD_EXT_POWER_OFF_NOTIFY;
/* Power Sustenance support at bit 5. */
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index f34407cc2788..543446392776 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -294,6 +294,7 @@ struct mmc_card {
#define MMC_QUIRK_BROKEN_SD_DISCARD (1<<14) /* Disable broken SD discard support */
#define MMC_QUIRK_BROKEN_SD_CACHE (1<<15) /* Disable broken SD cache support */
#define MMC_QUIRK_BROKEN_CACHE_FLUSH (1<<16) /* Don't flush cache until the write has occurred */
+#define MMC_QUIRK_BROKEN_SD_POWEROFF_NOTIFY (1<<17) /* Disable broken SD poweroff notify support */
bool written_flag; /* Indicates eMMC has been written since power on */
bool reenable_cmdq; /* Re-enable Command Queue */
--
2.46.0
