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* MSM Serial UART for GENI based cores.
The MSM serial UART driver supports low speed and high speed use-cases.
This is meant only for QUPv3 GENI based cores and isn't backwards compatible.
There is support for console usecases and for higher speed usecases that need
DMA.
Required properties:
- compatible: should contain "qcom,msm-geni-uart, qcom,msm-geni-console"
for UART console usecases, "qcom,msm-geni-uart, qcom,msm-geni-serial-hs"
for High Speed (HS) usecases.
- reg: Should contain UART register location and length.
- interrupts: Should contain UART core interrupts.
- clocks: clocks needed for UART, includes the core and AHB clock.
- pinctrl-names/pinctrl-0/1: The GPIOs assigned to this core. The names
Should be "active" and "sleep" for the pin confuguration when core is active
or when entering sleep state.
Optional properties:
- qcom,bus-mas: contains the bus master id needed to put in bus bandwidth votes
for inter-connect buses.
- qcom,wakeup-byte: Byte to be injected in the tty layer during wakeup isr.
Example:
qupv3_uart11: qcom,qup_uart@0xa88000 {
compatible = "qcom,msm-geni-uart";
reg = <0xa88000 0x7000>;
reg-names = "se_phys";
clock-names = "se-clk", "m-ahb", "s-ahb";
clocks = <&clock_gcc GCC_QUPV3_WRAP0_S0_CLK>,
<&clock_gcc GCC_QUPV3_WRAP_0_M_AHB_CLK>,
<&clock_gcc GCC_QUPV3_WRAP_0_S_AHB_CLK>;
pinctrl-names = "default", "sleep";
pinctrl-0 = <&qup_1_uart_3_active>;
pinctrl-1 = <&qup_1_uart_3_sleep>;
interrupts = <0 355 0>;
qcom,bus-mas = <MASTER_BLSP_2>;
qcom,wakeup-byte = <0xFF>;
};