[devicetree,2/2] arm64: dts: ls1028a-rdb: Add a spidev node for the mikroBUS
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Message ID 20200320161346.14155-3-olteanv@gmail.com
State New
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Series
  • Remainder for "[PATCH v5 00/12] NXP DSPI bugfixes and support for LS1028A"
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Commit Message

Vladimir Oltean March 20, 2020, 4:13 p.m. UTC
From: Vladimir Oltean <vladimir.oltean@nxp.com>

For debugging, it is useful to have access to the DSPI controller
signals. On the reference design board, these are exported to either the
mikroBUS1 or mikroBUS2 connector (according to the CPLD register
BRDCFG3[SPI3]).

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
---
 arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

Patch
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diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
index 6d05b76c2c7a..0d27b5667b8c 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
@@ -83,6 +83,20 @@ 
 	};
 };
 
+&dspi2 {
+	bus-num = <2>;
+	status = "okay";
+
+	/* mikroBUS1 */
+	spidev@0 {
+		compatible = "rohm,dh2228fv";
+		spi-max-frequency = <20000000>;
+		fsl,spi-cs-sck-delay = <100>;
+		fsl,spi-sck-cs-delay = <100>;
+		reg = <0>;
+	};
+};
+
 &esdhc {
 	sd-uhs-sdr104;
 	sd-uhs-sdr50;