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

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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: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20211208091853.8557-1-chanho61.park@samsung.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
This commit is contained in:
Chanho Park 2021-12-08 18:18:53 +09:00 committed by Krzysztof Kozlowski
parent e522ae91b8
commit 7836149e15
2 changed files with 32 additions and 8 deletions
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4
arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
View File

@ -54,3 +54,7 @@
vcc-supply = <&ufs_0_fixed_vcc_reg>;
vcc-fixed-regulator;
};
&usi_0 {
status = "okay";
};

36
arch/arm64/boot/dts/exynos/exynosautov9.dtsi
View File

@ -7,6 +7,7 @@
*/
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/soc/samsung,exynos-usi.h>
/ {
compatible = "samsung,exynosautov9";
@ -256,16 +257,35 @@
reg = <0x17c20000 0x1000>;
};
/* USI: UART */
serial_0: uart@10300000 {
compatible = "samsung,exynos850-uart";
reg = <0x10300000 0x100>;
interrupts = <GIC_SPI 345 IRQ_TYPE_LEVEL_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&uart0_bus_dual>;
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 = "uart", "clk_uart_baud0";
clock-names = "pclk", "ipclk";
status = "disabled";
/* USI: UART */
serial_0: serial@10300000 {
compatible = "samsung,exynos850-uart";
reg = <0x10300000 0xc0>;
interrupts = <GIC_SPI 345 IRQ_TYPE_LEVEL_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&uart0_bus_dual>;
clocks = <&uart_clock>, <&uart_clock>;
clock-names = "uart", "clk_uart_baud0";
status = "disabled";
};
};
ufs_0_phy: ufs0-phy@17e04000 {