msm8953之串口dts配置

msm8953支持4路串口，编号uart2、uart4、uart5、uart6

基地址：

中断号：

dts配置如下;

xxx .dtsi

&blsp1_uart0 {//uart2status = "ok";pinctrl-names = "default";pinctrl-0 = <&uart_console_active>;};&blsp1_uart4 {//uart4status = "ok";pinctrl-names = "default";pinctrl-0 = <&uart4_console_active>;};&blsp2_uart5 {//uart5status = "ok";pinctrl-names = "default";pinctrl-0 = <&uart5_console_active>;};&blsp2_uart6 {//uart6status = "ok";pinctrl-names = "default";pinctrl-0 = <&uart6_console_active>;};

xxx-msm8953.dtsi

blsp1_uart0: serial@78af000 {//uart2compatible = "qcom,msm-lsuart-v14";reg = <0x78af000 0x200>;interrupts = <0 107 0>;status = "disabled";clocks = <&clock_gcc clk_gcc_blsp1_uart1_apps_clk>,<&clock_gcc clk_gcc_blsp1_ahb_clk>;clock-names = "core_clk", "iface_clk";};blsp1_uart4:serial@78b0000 {//uart4compatible = "qcom,msm-lsuart-v14";reg = <0x78b0000 0x200>;interrupts = <0 108 0>;status = "disabled";clocks = <&clock_gcc clk_gcc_blsp1_uart2_apps_clk>,<&clock_gcc clk_gcc_blsp1_ahb_clk>;clock-names = "core_clk", "iface_clk";};blsp2_uart5:serial@7aef000 {//uart5compatible = "qcom,msm-lsuart-v14";reg = <0x7aef000 0x200>;interrupts = <0 306 0>;status = "disabled";clocks = <&clock_gcc clk_gcc_blsp2_uart1_apps_clk>,   <&clock_gcc clk_gcc_blsp2_ahb_clk>;clock-names = "core_clk","iface_clk";};blsp2_uart6:serial@7af0000 {//uart6compatible = "qcom,msm-lsuart-v14";reg = <0x7af0000 0x200>;interrupts = <0 307 0>;status = "disabled";clocks = <&clock_gcc clk_gcc_blsp2_uart2_apps_clk>,   <&clock_gcc clk_gcc_blsp2_ahb_clk>;clock-names = "core_clk","iface_clk";};

xxx-msm8953-pinctrl.dtsi

pmx-uartconsole {//uart2uart_console_active: uart_console_active {mux {pins = "gpio4", "gpio5";function = "blsp_uart2";};config {pins = "gpio4", "gpio5";drive-strength = <2>;bias-disable;};};uart_console_sleep: uart_console_sleep {mux {pins = "gpio4", "gpio5";function = "blsp_uart2";};config {pins = "gpio4", "gpio5";drive-strength = <2>;bias-pull-down;};};};pmx-uart4console {//uart4uart4_console_active: uart4_console_active {mux {pins = "gpio12","gpio13";function = "blsp_uart4";};config {pins = "gpio12","gpio13";drive-strength = <2>;bias-disable;};};uart4_console_sleep: uart4_console_sleep {mux {pins = "gpio12","gpio13";function = "blsp_uart4";};config {pins = "gpio12","gpio13";drive-strength = <2>;bias-pull-down;};};};pmx-uart5console {//uart5uart5_console_active: uart_console_active {mux {pins = "gpio16","gpio17";function = "blsp_uart5";};config {pins = "gpio16","gpio17";drive-strength = <2>;bias-disable;};};uart5_console_sleep: uart5_console_sleep {mux {pins = "gpio16","gpio17";function = "blsp_uart5";};config {   pins = "gpio16","gpio17";drive-strength = <2>;bias-disable;};};};pmx-uart6console {//uart6uart6_console_active: uart_console_active {mux {pins = "gpio20","gpio21";function = "blsp_uart6";};config {pins = "gpio20","gpio21";drive-strength = <2>;bias-disable;};};uart6_console_sleep: uart6_console_sleep {mux {pins = "gpio20","gpio21";function = "blsp_uart6";};config {pins = "gpio20","gpio21";drive-strength = <2>;bias-disable;};};};