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| /rk3399_ARM-atf/drivers/imx/usdhc/ |
| H A D | imx_usdhc.c | 2e90f3e68f9e3aec8666fd6d07ef9b4577e4f4fa Fri Mar 28 06:37:33 UTC 2025 Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com> fix(nxp-mmc): fix the clock rate calculation
Based on the reference manual's description of SYS_CTRL.SDCLKFS and
SYS_CTRL.DVS, the clock rate can be adjusted using a two-stage divider.
The value of SYS_CTRL.DVS should be set considering the value of
SYS_CTRL.SDCLKFS (pre_div). Consequently, the resulting clock rate is
calculated as input_rate / (SYS_CTRL.SDCLKFS * SYS_CTRL.DVS).
Change-Id: I65a5372b8baf9def97e612ee29f99202c0fdc579
Signed-off-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com>
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