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    ARM: dts: ventana: add UHS-I support for Ventana boards · 3ee12d80
    Tim Harvey 提交于
    UHS-I support is available on Ventana boards with micro-SD sockets depending
    on the board revision. To support this pinctl states for 100Mhz and 200MHz
    must be added as well as pinmux of the VSELECT signal. In order to support
    UHS-I the I/O rail of the 4-bit data bus must be switchable between 1.8V
    and 3.3V.
    
    By adding the no-1-8-v property, which disables UHS-I support, we allow the
    bootloader to be in charge of selecting which boards have this capability
    by removing that property if the board model/revision implement the support.
    
    Additionally we will remove NANDF_CS1 here from the nand pinmux group as the
    second chip-select is not used on any ventana boards and this is the pad
    that is used for SD3_VELECT.
    Signed-off-by: NTim Harvey <tharvey@gateworks.com>
    Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
    3ee12d80
imx6qdl-gw552x.dtsi 5.2 KB