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| author | Ai Kyuse <ai.kyuse.uw@renesas.com> | 2016-11-03 15:16:03 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-11-29 09:00:57 +0100 |
| commit | 4f11997773b6b452b5a0d620c5ac5050e75c227e (patch) | |
| tree | c56c9d8763617bf291e5bf7d358e7d0f52c09a48 /drivers/mmc/host/tmio_mmc.h | |
| parent | mmc: tmio: Add hw reset support (diff) | |
| download | linux-4f11997773b6b452b5a0d620c5ac5050e75c227e.tar.xz linux-4f11997773b6b452b5a0d620c5ac5050e75c227e.zip | |
mmc: tmio: Add tuning support
Add tuning support for use with SDR104 mode
Signed-off-by: Ai Kyuse <ai.kyuse.uw@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/tmio_mmc.h')
| -rw-r--r-- | drivers/mmc/host/tmio_mmc.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h index b8469f2de42b..9e20bcf3aa8d 100644 --- a/drivers/mmc/host/tmio_mmc.h +++ b/drivers/mmc/host/tmio_mmc.h @@ -153,6 +153,7 @@ struct tmio_mmc_host { struct mutex ios_lock; /* protect set_ios() context */ bool native_hotplug; bool sdio_irq_enabled; + u32 scc_tappos; /* Mandatory callback */ int (*clk_enable)(struct tmio_mmc_host *host); @@ -168,6 +169,19 @@ struct tmio_mmc_host { struct mmc_ios *ios); int (*write16_hook)(struct tmio_mmc_host *host, int addr); void (*hw_reset)(struct tmio_mmc_host *host); + void (*prepare_tuning)(struct tmio_mmc_host *host, unsigned long tap); + bool (*check_scc_error)(struct tmio_mmc_host *host); + + /* + * Mandatory callback for tuning to occur which is optional for SDR50 + * and mandatory for SDR104. + */ + unsigned int (*init_tuning)(struct tmio_mmc_host *host); + int (*select_tuning)(struct tmio_mmc_host *host); + + /* Tuning values: 1 for success, 0 for failure */ + DECLARE_BITMAP(taps, BITS_PER_BYTE * sizeof(long)); + unsigned int tap_num; }; struct tmio_mmc_host *tmio_mmc_host_alloc(struct platform_device *pdev); |