Messages in this thread Patch in this message | | | From | Chris Ruehl <> | Subject | [PATCH 2/2] devicetree: phy: rockchip-emmc add output-tapdelay-select | Date | Wed, 2 Dec 2020 16:25:07 +0800 |
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Update the rockchip-emmc-phy.txt and add the u32 property 'output-tapdelay-select'. This allow to set the otapdlysec register.
Tested with our customized rk3399 board to tune eMMC.
Signed-off-by: Chris Ruehl <chris.ruehl@gtsys.com.hk> --- Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt b/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt index 3e4d2d79a65d..00aa2d349e55 100644 --- a/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt +++ b/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt @@ -18,6 +18,9 @@ Optional properties: If not set, the default value of 50 will be applied. - enable-strobe-pulldown: Enable internal pull-down for the strobe line. If not set, pull-down is not used. + - output-tapdelay-select: Specifies the phyctrl_otapdlysec register. + If not set, the register defaults to 0x4. + Maximum value 0xf. Example: -- 2.20.1
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