UARTC is used for the interfacing with bluetooth device.
Register this UART channel as high speed serial channel
so that it can use the APB DMA for data transfer.
Signed-off-by: Laxman Dewangan <ldewangan@xxxxxxxxxx>
---
The driver file got applied in Greg KH's tty tree.
Tested in linux-next 20121229 with some more changes as
linux-next-20130116 is crashing in pincontrol.
arch/arm/boot/dts/tegra30-cardhu.dtsi | 15 +++++++++++++++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi
index bdb2a66..ff6b68f 100644
--- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
+++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
@@ -106,6 +106,15 @@
nvidia,slew-rate-rising = <1>;
nvidia,slew-rate-falling = <1>;
};
+ uart3_txd_pw6 {
+ nvidia,pins = "uart3_txd_pw6",
+ "uart3_cts_n_pa1",
+ "uart3_rts_n_pc0",
+ "uart3_rxd_pw7";
+ nvidia,function = "uartc";
+ nvidia,pull = <0>;
+ nvidia,tristate = <0>;
+ };
};
};
@@ -114,6 +123,12 @@
clock-frequency = <408000000>;
};
+ serial@70006200 {
+ compatible = "nvidia,tegra30-hsuart";
+ status = "okay";
+ clock-frequency = <408000000>;
+ };
+
i2c@7000c000 {
status = "okay";
clock-frequency = <100000>;
--
1.7.1.1
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