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| /rk3399_rockchip-uboot/include/ |
| H A D | fsl_esdhc.h | 32a9179f3adf6b36d85601ff6eba251dc6d207f9 Mon Jun 12 09:50:53 UTC 2017 Peng Fan <peng.fan@nxp.com> mmc: fsl_esdhc: introduce vs18_enable for 1.8V fix I/O
When using eMMC with 1.8V I/O, the VSELECT bit need to be set in
the USDHC controller when init.
This patch adds a parameter "vs18_enable" in fsl_esdhc_cfg
structure and priv data, so each controller can have different
settings.
We could not use CONFIG_SYS_FSL_ESDHC_FORCE_VSELECT, it has problem
that it will apply to all USDHC controllers and it only set the 1.8V
at init phase. So if user does not select to the eMMC device,
the voltage on the I/O pins are not correct.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: York Sun <york.sun@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
|
| /rk3399_rockchip-uboot/drivers/mmc/ |
| H A D | fsl_esdhc.c | 32a9179f3adf6b36d85601ff6eba251dc6d207f9 Mon Jun 12 09:50:53 UTC 2017 Peng Fan <peng.fan@nxp.com> mmc: fsl_esdhc: introduce vs18_enable for 1.8V fix I/O
When using eMMC with 1.8V I/O, the VSELECT bit need to be set in
the USDHC controller when init.
This patch adds a parameter "vs18_enable" in fsl_esdhc_cfg
structure and priv data, so each controller can have different
settings.
We could not use CONFIG_SYS_FSL_ESDHC_FORCE_VSELECT, it has problem
that it will apply to all USDHC controllers and it only set the 1.8V
at init phase. So if user does not select to the eMMC device,
the voltage on the I/O pins are not correct.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: York Sun <york.sun@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
|