@@ -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>;
};
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@ti.com> --- .../devicetree/bindings/mmc/sdhci-am654.txt | 21 +++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-)