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Diffstat (limited to 'arch/arm/boot/dts/tegra124-apalis-eval.dts')
-rw-r--r--arch/arm/boot/dts/tegra124-apalis-eval.dts26
1 files changed, 22 insertions, 4 deletions
diff --git a/arch/arm/boot/dts/tegra124-apalis-eval.dts b/arch/arm/boot/dts/tegra124-apalis-eval.dts
index 231d0913e92e..c5ecf9301229 100644
--- a/arch/arm/boot/dts/tegra124-apalis-eval.dts
+++ b/arch/arm/boot/dts/tegra124-apalis-eval.dts
@@ -136,16 +136,34 @@
status = "okay";
spi-max-frequency = <25000000>;
- spidev1: spidev@1 {
- compatible = "spidev";
+ k20mcu: apalis-tk1-k20@1 {
+ compatible = "toradex,apalis-tk1-k20";
reg = <1>;
- spi-max-frequency = <12000000>;
+ spi-max-frequency = <10000000>;
+ interrupt-parent =<&gpio>;
+ interrupts = <TEGRA_GPIO(K, 2) IRQ_TYPE_EDGE_FALLING>;
+ rst-gpio = <&gpio TEGRA_GPIO(BB, 6) GPIO_ACTIVE_HIGH>;
+
+ /* GPIO based CS used to enter K20 EzPort mode */
+ ezport-cs-gpio = <&gpio TEGRA_GPIO(W, 2) GPIO_ACTIVE_HIGH>;
+ /* SPI CS under GPIO controll due to K20 quirks */
+ spi-cs-gpio = <&gpio TEGRA_GPIO(X, 6) GPIO_ACTIVE_HIGH>;
+ /* extra INT lines between K20 and TK1 */
+ int2-gpio = <&gpio TEGRA_GPIO(J, 2) GPIO_ACTIVE_HIGH>;
+ int3-gpio = <&gpio TEGRA_GPIO(I, 5) GPIO_ACTIVE_HIGH>;
+ int4-gpio = <&gpio TEGRA_GPIO(J, 0) GPIO_ACTIVE_HIGH>;
+
+ toradex,apalis-tk1-k20-uses-gpio;
+ toradex,apalis-tk1-k20-uses-adc;
+ toradex,apalis-tk1-k20-uses-tsc;
};
+ /* spidev on K20 bus, can be used with custom firmware for userspace
+ * K20 applications */
spidev2: spidev@2 {
compatible = "spidev";
reg = <2>;
- spi-max-frequency = <2000000>;
+ spi-max-frequency = <3500000>;
};
};