[PATCH 8/9] mmc: exynos_dw_mmc: add support for SD UHS mode

[Peng Fan]

On Fri, Oct 17, 2025 at 08:54:13PM +0530, Kaustabh Chakraborty wrote:
>SD UHS mode is already supported by the Exynos DW-MMC driver in mainline
>Linux. Using that as reference, add support in the U-Boot driver.
>
>The maximum frequency was capped to 200000000, increase it to 208000000,
>which is the required frequency for UHS_SDR104, which has the highest
>frequency of all UHS modes. Moreover, add UHS_CAPS to host capailities.
>These changes allow both host and card to recognize support for all UHS
>modes.
>
>SDR104, SDR50, and DDR50 have their own CLKSEL timing values, which
>requires the CIU div value to be set in bits 18:16. Move the function
>exynos_dwmci_clksel() below exynos_dwmmc_get_ciu_div() so that the
>latter is accessible from the former, and add cases for said timing
>modes.
>
>Signed-off-by: Kaustabh Chakraborty <kauschluss at disroot.org>

Reviewed-by: Peng Fan <peng.fan at nxp.com>