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| author | Simon Horman | 2011-06-21 01:00:09 +0200 |
|---|---|---|
| committer | Chris Ball | 2011-07-20 23:20:56 +0200 |
| commit | a11862d3389d4304211eed0758f510d5e573f93c (patch) | |
| tree | a50e43af3245844bd65d6d17f04167054364ac7e /drivers/mmc/host/tmio_mmc.h | |
| parent | mmc: tmio: name 0xd8 as CTL_DMA_ENABLE (diff) | |
| download | kernel-qcow2-linux-a11862d3389d4304211eed0758f510d5e573f93c.tar.gz kernel-qcow2-linux-a11862d3389d4304211eed0758f510d5e573f93c.tar.xz kernel-qcow2-linux-a11862d3389d4304211eed0758f510d5e573f93c.zip | |
mmc: tmio: Share register access functions
Move register access functions into a shared header.
Use sd_ctrl_write16 in tmio_mmc_dma.c:tmio_mmc_enable_dma().
Other than avoiding (trivial) open-coding, the motivation for
this is to allow platform-hooks in access functions to
be applied across all applicable accesses.
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/tmio_mmc.h')
| -rw-r--r-- | drivers/mmc/host/tmio_mmc.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h index 8260bc2c34e3..0c22df0f954d 100644 --- a/drivers/mmc/host/tmio_mmc.h +++ b/drivers/mmc/host/tmio_mmc.h @@ -134,4 +134,39 @@ int tmio_mmc_host_resume(struct device *dev); int tmio_mmc_host_runtime_suspend(struct device *dev); int tmio_mmc_host_runtime_resume(struct device *dev); +static inline u16 sd_ctrl_read16(struct tmio_mmc_host *host, int addr) +{ + return readw(host->ctl + (addr << host->bus_shift)); +} + +static inline void sd_ctrl_read16_rep(struct tmio_mmc_host *host, int addr, + u16 *buf, int count) +{ + readsw(host->ctl + (addr << host->bus_shift), buf, count); +} + +static inline u32 sd_ctrl_read32(struct tmio_mmc_host *host, int addr) +{ + return readw(host->ctl + (addr << host->bus_shift)) | + readw(host->ctl + ((addr + 2) << host->bus_shift)) << 16; +} + +static inline void sd_ctrl_write16(struct tmio_mmc_host *host, int addr, u16 val) +{ + writew(val, host->ctl + (addr << host->bus_shift)); +} + +static inline void sd_ctrl_write16_rep(struct tmio_mmc_host *host, int addr, + u16 *buf, int count) +{ + writesw(host->ctl + (addr << host->bus_shift), buf, count); +} + +static inline void sd_ctrl_write32(struct tmio_mmc_host *host, int addr, u32 val) +{ + writew(val, host->ctl + (addr << host->bus_shift)); + writew(val >> 16, host->ctl + ((addr + 2) << host->bus_shift)); +} + + #endif |