* [PATCH 1/2] arm64: dts: qcom: 8x16: Add UART1 configuration nodes
@ 2015-09-12 13:03 Ivan T. Ivanov
2015-09-12 13:03 ` [PATCH 2/2] arm64: dts: qcom: 8x16: UART2 use DMA for RX and TX Ivan T. Ivanov
0 siblings, 1 reply; 2+ messages in thread
From: Ivan T. Ivanov @ 2015-09-12 13:03 UTC (permalink / raw)
To: Andy Gross
Cc: Srinivas Kandagatla, Stanimir Varbanov, Rob Herring, Pawel Moll,
Mark Rutland, Ian Campbell, devicetree, linux-kernel,
linux-arm-msm
Add devicetree bindings for UART1 pins and device
controller with DMA channel specifiers.
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
---
arch/arm64/boot/dts/qcom/msm8916-pins.dtsi | 29 +++++++++++++++++++++++++++++
arch/arm64/boot/dts/qcom/msm8916.dtsi | 12 ++++++++++++
2 files changed, 41 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi b/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi
index 568956859088..1330a7a6bcf1 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916-pins.dtsi
@@ -13,6 +13,35 @@
&msmgpio {
+ blsp1_uart1_default: blsp1_uart1_default {
+ pinmux {
+ function = "blsp_uart1";
+ // TX, RX, CTS_N, RTS_N
+ pins = "gpio0", "gpio1",
+ "gpio2", "gpio3";
+ };
+ pinconf {
+ pins = "gpio0", "gpio1",
+ "gpio2", "gpio3";
+ drive-strength = <16>;
+ bias-disable;
+ };
+ };
+
+ blsp1_uart1_sleep: blsp1_uart1_sleep {
+ pinmux {
+ function = "blsp_uart1";
+ pins = "gpio0", "gpio1",
+ "gpio2", "gpio3";
+ };
+ pinconf {
+ pins = "gpio0", "gpio1",
+ "gpio2", "gpio3";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+ };
+
blsp1_uart2_default: blsp1_uart2_default {
pinmux {
function = "blsp_uart2";
diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index 5911de008dd5..f10ff7a2d0e3 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -102,6 +102,18 @@
reg = <0x1800000 0x80000>;
};
+ blsp1_uart1: serial@78af000 {
+ compatible = "qcom,msm-uartdm-v1.4", "qcom,msm-uartdm";
+ reg = <0x78af000 0x200>;
+ interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&gcc GCC_BLSP1_UART1_APPS_CLK>,
+ <&gcc GCC_BLSP1_AHB_CLK>;
+ clock-names = "core", "iface";
+ dmas = <&blsp_dma 1>, <&blsp_dma 0>;
+ dma-names = "rx", "tx";
+ status = "disabled";
+ };
+
blsp1_uart2: serial@78b0000 {
compatible = "qcom,msm-uartdm-v1.4", "qcom,msm-uartdm";
reg = <0x78b0000 0x200>;
--
1.9.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH 2/2] arm64: dts: qcom: 8x16: UART2 use DMA for RX and TX
2015-09-12 13:03 [PATCH 1/2] arm64: dts: qcom: 8x16: Add UART1 configuration nodes Ivan T. Ivanov
@ 2015-09-12 13:03 ` Ivan T. Ivanov
0 siblings, 0 replies; 2+ messages in thread
From: Ivan T. Ivanov @ 2015-09-12 13:03 UTC (permalink / raw)
To: Andy Gross
Cc: Srinivas Kandagatla, Stanimir Varbanov, Rob Herring, Pawel Moll,
Mark Rutland, Ian Campbell, devicetree, linux-kernel,
linux-arm-msm
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
---
arch/arm64/boot/dts/qcom/msm8916.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index f10ff7a2d0e3..6874221ec355 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -120,6 +120,8 @@
interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&gcc GCC_BLSP1_UART2_APPS_CLK>, <&gcc GCC_BLSP1_AHB_CLK>;
clock-names = "core", "iface";
+ dmas = <&blsp_dma 3>, <&blsp_dma 2>;
+ dma-names = "rx", "tx";
status = "disabled";
};
--
1.9.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
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