dm: ls1021a: dts: Update DSPI node to support DM SPI

Update DSPI controller node in ls1021a.dtsi.
Update flash device node in ls1021a-qds.dts.
Ls1021a-twr board doesn't support DSPI, so remove DSPI node
in ls1021a-twr.dts.
Signed-off-by: NHaikun Wang <Haikun.Wang@freescale.com>
Acked-by: NSimon Glass <sjg@chromium.org>

arch/arm/dts/ls1021a-qds.dts

@@ -18,6 +18,7 @@
 		enet2_rgmii_phy = &rgmii_phy3;
 		enet0_sgmii_phy = &sgmii_phy1c;
 		enet1_sgmii_phy = &sgmii_phy1d;
+		spi1 = &dspi0;
 	};
 };
 
@@ -28,7 +29,7 @@
 	dspiflash: at45db021d@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "atmel,at45db021d", "atmel,at45", "atmel,dataflash";
+		compatible = "spi-flash";
 		spi-max-frequency = <16000000>;
 		spi-cpol;
 		spi-cpha;

arch/arm/dts/ls1021a-twr.dts

@@ -19,21 +19,6 @@
 	};
 };
 
-&dspi1 {
-	bus-num = <0>;
-	status = "okay";
-
-	dspiflash: s25fl064k@0 {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		compatible = "spansion,s25fl064k";
-		spi-max-frequency = <16000000>;
-		spi-cpol;
-		spi-cpha;
-		reg = <0>;
-	};
-};
-
 &i2c0 {
 	status = "okay";
 };

arch/arm/dts/ls1021a.dtsi

@@ -152,7 +152,7 @@
 			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
 			clock-names = "dspi";
 			clocks = <&platform_clk 1>;
-			spi-num-chipselects = <5>;
+			num-cs = <6>;
 			big-endian;
 			status = "disabled";
 		};
@@ -165,7 +165,7 @@
 			interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
 			clock-names = "dspi";
 			clocks = <&platform_clk 1>;
-			spi-num-chipselects = <5>;
+			num-cs = <6>;
 			big-endian;
 			status = "disabled";
 		};