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+Nuvoton NPCM7xx JTAG MASTER interface
+
+Nuvoton BMC NPCM7xx JTAG Master is used for debugging host CPU or programming
+CPLD device. The driver is implemented as an SPI device driver that enabling
+the option to transfer JTAG data with the assistance of SPI HW.
+
+Required properties for jtag_master node
+- compatible : "nuvoton,npcm750-jtag-master" for Poleg NPCM7XX.
+- spi-max-frequency : specify the max spi bus frequency.
+- reg : always 0
+- pinctrl-names : contain 2 pinctrl states "pspi" and "gpio", which indicates
+ the TCK/TDI/TDO pin state in HW mode(using PSPI hw) and
+ SW mode (using GPIO bitbang) respectively.
+- tck-gpios : specify the GPIO number of TCK pin
+- tdi-gpios : specify the GPIO number of TDI pin
+- tdo-gpios : specify the GPIO number of TDO pin
+- tms-gpios : specify the GPIO number of TMS pin
+
+Example:
+spi1: spi@201000 {
+ ...
+ jtag_master {
+ compatible = "nuvoton,npcm750-jtag-master";
+ spi-max-frequency = <25000000>;
+ reg = <0>;
+
+ pinctrl-names = "pspi", "gpio";
+ pinctrl-0 = <&pspi2_pins>;
+ pinctrl-1 = <&gpio17_pins &gpio18o_pins
+ &gpio19ol_pins>;
+
+ tck-gpios = <&gpio0 19 GPIO_ACTIVE_HIGH>;
+ tdi-gpios = <&gpio0 18 GPIO_ACTIVE_HIGH>;
+ tdo-gpios = <&gpio0 17 GPIO_ACTIVE_HIGH>;
+ tms-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
+ status = "okay";
+ };
+};