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| author | Haijun Zhang <haijun.zhang@freescale.com> | 2013-03-19 09:53:28 (GMT) |
|---|---|---|
| committer | Fleming Andrew-AFLEMING <AFLEMING@freescale.com> | 2013-03-27 23:30:11 (GMT) |
| commit | a11daefdf9408f331cff193a98400b36dad56ba0 (patch) | |
| tree | 09b7df2ca98c8b507f5f82daddf0b27cf90c0e14 /Documentation | |
| parent | 5ec0b35b09e7e5748d473fbba6169ab5bc92e61d (diff) | |
| download | linux-fsl-qoriq-a11daefdf9408f331cff193a98400b36dad56ba0.tar.xz | |
mmc:core: Add restrictions for data transfer and card erase
If max_discard_to was not designed, for mmc card preferred erase
size should be used, for sd card just return UINT_MAX. Also add
limit for data transfer, Use max_discard_to as data timeout value
to avoid timeout error in case data timeout was larger than
max_discard_to.
This patch can fix I/O error due to large timeout value for
erase(CMD38) and write(CMD25) for some crappy cards.
Signed-off-by: Haijun Zhang <haijun.zhang@freescale.com>
Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
Change-Id: Ib34a7bdb10714b9ab8be0c2b9c2e21bd396edd0f
Reviewed-on: http://git.am.freescale.net:8181/405
Reviewed-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Tested-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions