The DM_SERIAL implicitly requires CONFIG_PL01X_SERIAL, which allows support for both serial IP block versions (i.e. PL011 and PL010).
The decision about used IP block is based on the compatible string, when DM is used.
In the XEA, the OF_PLATDATA is used to allow usage of serial driver in the SPL (as the size of SPL is crucial). In this case one cannot extract the type of IP block from .data field (corresponding to compatible) and it must be explicitly read at probe from dtoc generated, u-boot specific property.
Signed-off-by: Lukasz Majewski lukma@denx.de ---
arch/arm/dts/imx28-xea-u-boot.dtsi | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm/dts/imx28-xea-u-boot.dtsi b/arch/arm/dts/imx28-xea-u-boot.dtsi index e40a6d240c..50289cf6d7 100644 --- a/arch/arm/dts/imx28-xea-u-boot.dtsi +++ b/arch/arm/dts/imx28-xea-u-boot.dtsi @@ -36,6 +36,7 @@
&duart { bootph-pre-ram; + type = <1>; /* TYPE_PL011 */ };
&gpio0 {