Commit 7836149e authored by Chanho Park's avatar Chanho Park Committed by Krzysztof Kozlowski
Browse files

arm64: dts: exynos: convert serial_0 to USI on ExynosAutov9 

According to USI v2 driver change[1], serial_0 node should be converted to
use the USI node hierarchy. syscon_peric0 will be used as a syscon node
to control the USI00_USI_SW_CONF register.
This also changes the serial node name from uart@ to serial@.

[1]: https://lore.kernel.org/linux-samsung-soc/20211204195757.8600-2-semen.protsenko@linaro.org/



Cc: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: default avatarChanho Park <chanho61.park@samsung.com>
Reviewed-by: default avatarSam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20211208091853.8557-1-chanho61.park@samsung.com


Signed-off-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
parent e522ae91

arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts

+4 −0
Original line number Diff line number Diff line
@@ -54,3 +54,7 @@ &ufs_0 { 
	vcc-supply = <&ufs_0_fixed_vcc_reg>;

	vcc-fixed-regulator;

};



&usi_0 {

	status = "okay";

};

arch/arm64/boot/dts/exynos/exynosautov9.dtsi

+28 −8
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ 
 */



#include <dt-bindings/interrupt-controller/arm-gic.h>

#include <dt-bindings/soc/samsung,exynos-usi.h>



/ {

	compatible = "samsung,exynosautov9";
@@ -256,10 +257,28 @@ syscon_fsys2: syscon@17c20000 { 
			reg = <0x17c20000 0x1000>;

		};



		syscon_peric0: syscon@10220000 {

			compatible = "samsung,exynosautov9-sysreg", "syscon";

			reg = <0x10220000 0x2000>;

		};



		usi_0: usi@103000c0 {

			compatible = "samsung,exynos850-usi";

			reg = <0x103000c0 0x20>;

			samsung,sysreg = <&syscon_peric0 0x1000>;

			samsung,mode = <USI_V2_UART>;

			samsung,clkreq-on; /* needed for UART mode */

			#address-cells = <1>;

			#size-cells = <1>;

			ranges;

			clocks = <&uart_clock>, <&uart_clock>;

			clock-names = "pclk", "ipclk";

			status = "disabled";



			/* USI: UART */

		serial_0: uart@10300000 {

			serial_0: serial@10300000 {

				compatible = "samsung,exynos850-uart";

			reg = <0x10300000 0x100>;

				reg = <0x10300000 0xc0>;

				interrupts = <GIC_SPI 345 IRQ_TYPE_LEVEL_HIGH>;

				pinctrl-names = "default";

				pinctrl-0 = <&uart0_bus_dual>;
@@ -267,6 +286,7 @@ serial_0: uart@10300000 { 
				clock-names = "uart", "clk_uart_baud0";

				status = "disabled";

			};

		};



		ufs_0_phy: ufs0-phy@17e04000 {

			compatible = "samsung,exynosautov9-ufs-phy";