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| author | Chanho Park <chanho61.park@samsung.com> | 2021-12-08 10:18:53 +0100 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> | 2021-12-13 12:06:28 +0100 |
| commit | 7836149e155bd3c554571f135619f95932c841fc (patch) | |
| tree | c725566d7f199c365ee142b7512f8463b2497e16 /arch/arm64/boot/dts/exynos | |
| parent | dt-bindings: soc: samsung: Add Exynos USI bindings (diff) | |
| download | linux-7836149e155bd3c554571f135619f95932c841fc.tar.xz linux-7836149e155bd3c554571f135619f95932c841fc.zip | |
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: 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>
Diffstat (limited to 'arch/arm64/boot/dts/exynos')
| -rw-r--r-- | arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts | 4 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/exynos/exynosautov9.dtsi | 36 |
2 files changed, 32 insertions, 8 deletions
diff --git a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts index ef46d7aa6e28..57518cb5e8c4 100644 --- a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts +++ b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts @@ -54,3 +54,7 @@ vcc-supply = <&ufs_0_fixed_vcc_reg>; vcc-fixed-regulator; }; + +&usi_0 { + status = "okay"; +}; diff --git a/arch/arm64/boot/dts/exynos/exynosautov9.dtsi b/arch/arm64/boot/dts/exynos/exynosautov9.dtsi index 3e4727344b4a..0fab0aa4db3f 100644 --- a/arch/arm64/boot/dts/exynos/exynosautov9.dtsi +++ b/arch/arm64/boot/dts/exynos/exynosautov9.dtsi @@ -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 { |