According to latest AM65x Data Manual[1], a different output tap delay value is recommended for all speed modes. Therefore, replace the ti,otap-del-sel binding with one ti,otap-del-sel- for each MMC/SD speed mode. [1] http://www.ti.com/lit/gpn/am6526 Signed-off-by: Faiz Abbas <faiz_abbas@xxxxxx> --- .../devicetree/bindings/mmc/sdhci-am654.txt | 21 +++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/mmc/sdhci-am654.txt b/Documentation/devicetree/bindings/mmc/sdhci-am654.txt index 50e87df47971..c6ccecb9ae5a 100644 --- a/Documentation/devicetree/bindings/mmc/sdhci-am654.txt +++ b/Documentation/devicetree/bindings/mmc/sdhci-am654.txt @@ -18,7 +18,20 @@ Required Properties: - clocks: Handles to the clock inputs. - clock-names: Tuple including "clk_xin" and "clk_ahb" - interrupts: Interrupt specifiers - - ti,otap-del-sel: Output Tap Delay select + Output tap delay for each speed mode: + - ti,otap-del-sel-legacy + - ti,otap-del-sel-mmc-hs + - ti,otap-del-sel-sd-hs + - ti,otap-del-sel-sdr12 + - ti,otap-del-sel-sdr25 + - ti,otap-del-sel-sdr50 + - ti,otap-del-sel-sdr104 + - ti,otap-del-sel-ddr50 + - ti,otap-del-sel-ddr52 + - ti,otap-del-sel-hs200 + - ti,otap-del-sel-hs400 + These bindings must be provided otherwise the driver will disable the + corresponding speed mode (i.e. all nodes must provide at least -legacy) Optional Properties (Required for ti,am654-sdhci-5.1 and ti,j721e-sdhci-8bit): - ti,trm-icp: DLL trim select @@ -38,6 +51,10 @@ Example: interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>; sdhci-caps-mask = <0x80000007 0x0>; mmc-ddr-1_8v; - ti,otap-del-sel = <0x2>; + ti,otap-del-sel-legacy = <0x0>; + ti,otap-del-sel-mmc-hs = <0x0>; + ti,otap-del-sel-ddr52 = <0x5>; + ti,otap-del-sel-hs200 = <0x5>; + ti,otap-del-sel-hs400 = <0x0>; ti,trm-icp = <0x8>; }; -- 2.19.2
