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mmc: set MMC_QUIRK_KNOWN_WORKING_SD_CQ on Raspberry Pi class A2 cards

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These cards have a known-good CQ implementation and are based on a
Longsys product. Add the MANFID for Longsys SD, and the particular CID
details for the Pi card.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
This commit is contained in:
Jonathan Bell
2025-01-08 15:18:33 +00:00
committed by Dom Cobley
parent dabcd0bcbe
commit 580ec8b22b
2 changed files with 7 additions and 0 deletions
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1
drivers/mmc/core/card.h
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@@ -94,6 +94,7 @@ struct mmc_fixup {
#define CID_MANFID_KINGSTON 0x70
#define CID_MANFID_HYNIX 0x90
#define CID_MANFID_KINGSTON_SD 0x9F
#define CID_MANFID_LONGSYS_SD 0xAD
#define CID_MANFID_NUMONYX 0xFE
#define END_FIXUP { NULL }

6
drivers/mmc/core/quirks.h
View File

@@ -82,6 +82,12 @@ 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),
/* SD A2 allow-list - only trust CQ on these cards */
/* Raspberry Pi A2 cards */
_FIXUP_EXT(CID_NAME_ANY, CID_MANFID_LONGSYS_SD, 0x4c53, CID_YEAR_ANY, CID_MONTH_ANY,
cid_rev(1, 0, 0, 0), -1ull, SDIO_ANY_ID, SDIO_ANY_ID, add_quirk_sd,
MMC_QUIRK_WORKING_SD_CQ, EXT_CSD_REV_ANY),
END_FIXUP
};