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| /rk3399_rockchip-uboot/drivers/mmc/ |
| H A D | rockchip_dw_mmc.c | 4a6b865662c5895170c5aabaa7e2f2728fad536e Wed Jul 25 02:56:33 UTC 2018 Jason Zhu <jason.zhu@rock-chips.com> mmc: dw_mmc: change the strategy of tuning
The valid window of mmc sample phase is 0-360. It is separated to four options for tuning to improve tuning efficiency. If init_retry counter exceeds four, set init_retry to zero.
If the default_phase is set, we use it. If fail, try strategy of tuning above.
Change-Id: I4938717937d37ef156c278277d188f1b25d6ebbc Signed-off-by: Jason Zhu <jason.zhu@rock-chips.com>
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