mmc: sdhci: SDMA may use Auto-CMD23 in v4 mode

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When Host Version 4 Enable is set to 1, SDMA uses ADMA System Address
register (05Fh-058h) instead of using register (000h-004h) to indicate
its system address of data location. The register (000h-004h) is
re-assigned to 32-bit Block Count and Auto CMD23 argument, so then SDMA
may use Auto CMD23.

Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

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Chunyan Zhang 2018-08-30 16:21:43 +08:00 • committed by Ulf Hansson

parent 427b6514d0

commit 7ed71a9df4

1 changed files with 5 additions and 2 deletions

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drivers/mmc/host/sdhci.c

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