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Diffstat (limited to 'arch/arm/boot/dts/tegra30.dtsi')
-rw-r--r--arch/arm/boot/dts/tegra30.dtsi31
1 files changed, 26 insertions, 5 deletions
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index 7159bd353f8c..e55c99173704 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -4,6 +4,14 @@
compatible = "nvidia,tegra30";
interrupt-parent = <&intc>;
+ aliases {
+ serial0 = &uarta;
+ serial1 = &uartb;
+ serial2 = &uartc;
+ serial3 = &uartd;
+ serial4 = &uarte;
+ };
+
host1x {
compatible = "nvidia,tegra30-host1x", "simple-bus";
reg = <0x50000000 0x00024000>;
@@ -213,47 +221,60 @@
0x70003000 0x3e4>; /* Mux registers */
};
- serial@70006000 {
+ /*
+ * There are two serial driver i.e. 8250 based simple serial
+ * driver and APB DMA based serial driver for higher baudrate
+ * and performace. To enable the 8250 based driver, the compatible
+ * is "nvidia,tegra30-uart", "nvidia,tegra20-uart" and to enable
+ * the APB DMA based serial driver, the comptible is
+ * "nvidia,tegra30-hsuart", "nvidia,tegra20-hsuart".
+ */
+ uarta: serial@70006000 {
compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart";
reg = <0x70006000 0x40>;
reg-shift = <2>;
interrupts = <0 36 0x04>;
+ nvidia,dma-request-selector = <&apbdma 8>;
clocks = <&tegra_car 6>;
status = "disabled";
};
- serial@70006040 {
+ uartb: serial@70006040 {
compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart";
reg = <0x70006040 0x40>;
reg-shift = <2>;
interrupts = <0 37 0x04>;
+ nvidia,dma-request-selector = <&apbdma 9>;
clocks = <&tegra_car 160>;
status = "disabled";
};
- serial@70006200 {
+ uartc: serial@70006200 {
compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart";
reg = <0x70006200 0x100>;
reg-shift = <2>;
interrupts = <0 46 0x04>;
+ nvidia,dma-request-selector = <&apbdma 10>;
clocks = <&tegra_car 55>;
status = "disabled";
};
- serial@70006300 {
+ uartd: serial@70006300 {
compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart";
reg = <0x70006300 0x100>;
reg-shift = <2>;
interrupts = <0 90 0x04>;
+ nvidia,dma-request-selector = <&apbdma 19>;
clocks = <&tegra_car 65>;
status = "disabled";
};
- serial@70006400 {
+ uarte: serial@70006400 {
compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart";
reg = <0x70006400 0x100>;
reg-shift = <2>;
interrupts = <0 91 0x04>;
+ nvidia,dma-request-selector = <&apbdma 20>;
clocks = <&tegra_car 66>;
status = "disabled";
};