This series of patches implements central card-detection within the MMC
framework. Before this patch series, many boards actually did implement
the board_mmc_getcd() function, but it wasn't used except by one driver
(fsl_esdhc). Unfortunately, implementations interpreted the meaning of
the cd parameter differently, some taking it to signal card absence and
others using it to detect card presence. Furthermore, the signature of
the board_mmc_getcd() function was not at all consistent with other MMC
related functions.
The first patch in this series therefore changes the board_mmc_getcd()
function signature and consolidates all current implementations. The
second patch adds a central card-detection implementation within the
MMC framework by using the new board_mmc_getcd() function and adds a
hook that can be provided by drivers to serve as a default card-detect
mechanism if no board-specific implementation is provided. The third
and fourth patches implement this driver hook for the fsl_esdhc and the
tegra2 MMC drivers.
For reference, the following email thread contains the discussion that
led to this patch series:
http://lists.denx.de/pipermail/u-boot/2011-November/110180.html
Changes in v4:
- rebase onto latest MMC tree as requested by Andy Fleming
Changes in v3:
- reword subject line of patch 1 to be less confusing
- address coding style issues raised by Marek Vasut
Changes in v2:
- add a better rationale for the series and a reference to the email
thread that started it
- add an explanation to patch 3 why the call to board_mmc_getcd() is
removed from the fsl_esdhc driver
- add a cover letter which explains the series' goal
Thierry Reding (4):
mmc: Change board_mmc_getcd() function prototype.
mmc: Implement card detection.
mmc: fsl_esdhc: Implement card-detect hook.
mmc: tegra2: Implement card-detect hook.
board/efikamx/efikamx.c | 9 +++++----
board/emk/top9000/top9000.c | 12 ++----------
board/freescale/mx51evk/mx51evk.c | 9 +++++----
board/freescale/mx53ard/mx53ard.c | 9 +++++----
board/freescale/mx53evk/mx53evk.c | 9 +++++----
board/freescale/mx53loco/mx53loco.c | 9 +++++----
board/freescale/mx53smd/mx53smd.c | 6 ++----
doc/README.atmel_mci | 12 ++----------
drivers/mmc/arm_pl180_mmci.c | 1 +
drivers/mmc/bfin_sdh.c | 1 +
drivers/mmc/davinci_mmc.c | 1 +
drivers/mmc/fsl_esdhc.c | 27 ++++++++++++---------------
drivers/mmc/ftsdc010_esdhc.c | 1 +
drivers/mmc/gen_atmel_mci.c | 1 +
drivers/mmc/mmc.c | 22 ++++++++++++++++++++--
drivers/mmc/mmc_spi.c | 1 +
drivers/mmc/mxcmmc.c | 1 +
drivers/mmc/mxsmmc.c | 1 +
drivers/mmc/omap_hsmmc.c | 1 +
drivers/mmc/pxa_mmc_gen.c | 1 +
drivers/mmc/s5p_mmc.c | 1 +
drivers/mmc/sdhci.c | 1 +
drivers/mmc/sh_mmcif.c | 1 +
drivers/mmc/tegra2_mmc.c | 32 +++++++++++++-------------------
include/mmc.h | 4 +++-
25 files changed, 92 insertions(+), 81 deletions(-)
--
1.7.8.1
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