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| author | Avri Altman <[email protected]> | 2023-09-27 07:15:00 +0000 |
|---|---|---|
| committer | Ulf Hansson <[email protected]> | 2023-09-27 10:17:04 +0000 |
| commit | 84ee19bffc9306128cd0f1c650e89767079efeff (patch) | |
| tree | 6b68a64bb4afa8b01b9f505ec55c4751d8c66a68 /tools/testing/selftests/bpf/prog_tests/queue_stack_map.c | |
| parent | mmc: mtk-sd: Use readl_poll_timeout_atomic in msdc_reset_hw (diff) | |
| download | kernel-84ee19bffc9306128cd0f1c650e89767079efeff.tar.gz kernel-84ee19bffc9306128cd0f1c650e89767079efeff.zip | |
mmc: core: Capture correct oemid-bits for eMMC cards
The OEMID is an 8-bit binary number rather than 16-bit as the current code
parses for. The OEMID occupies bits [111:104] in the CID register, see the
eMMC spec JESD84-B51 paragraph 7.2.3. It seems that the 16-bit comes from
the legacy MMC specs (v3.31 and before).
Let's fix the parsing by simply move to use 8-bit instead of 16-bit. This
means we ignore the impact on some of those old MMC cards that may be out
there, but on the other hand this shouldn't be a problem as the OEMID seems
not be an important feature for these cards.
Signed-off-by: Avri Altman <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ulf Hansson <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/queue_stack_map.c')
0 files changed, 0 insertions, 0 deletions