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mmc: sd: SDUC Support Recognition

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[ Upstream commit fce2ce78af ]

Ultra Capacity SD cards (SDUC) was already introduced in SD7.0.  Those
cards support capacity larger than 2TB and up to including 128TB.

ACMD41 was extended to support the host-card handshake during
initialization.  The card expects that the HCS & HO2T bits to be set in
the command argument, and sets the applicable bits in the R3 returned
response.  On the contrary, if a SDUC card is inserted to a
non-supporting host, it will never respond to this ACMD41 until
eventually, the host will timed out and give up.

Also, add SD CSD version 3.0 - designated for SDUC, and properly parse
the csd register as the c_size field got expanded to 28 bits.

Do not enable SDUC for now - leave it to the last patch in the series.

Tested-by: Ricky WU <ricky_wu@realtek.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20241006051148.160278-2-avri.altman@wdc.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Stable-dep-of: 869d374757 ("mmc: core: Use GFP_NOIO in ACMD22")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Avri Altman 2024-10-06 08:11:39 +03:00 • committed by Greg Kroah-Hartman
commit c00372e41b
7 changed files with 27 additions and 15 deletions
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