| Message ID | 20240705021110.2495344-4-sunyeal.hong@samsung.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | initial clock support for exynosauto v920 SoC | expand |
Hi Sunyeal, On 7/5/24 11:11, Sunyeal Hong wrote: > Add cmu_top, cmu_peric0 clock nodes and > switch USI clocks instead of dummy fixed-rate-clock. > > Signed-off-by: Sunyeal Hong <sunyeal.hong@samsung.com> > --- > .../arm64/boot/dts/exynos/exynosautov920.dtsi | 40 +++++++++++++------ > 1 file changed, 27 insertions(+), 13 deletions(-) > > diff --git a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi > index c1c8566d74f5..1659c0a375c9 100644 > --- a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi > +++ b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi > @@ -6,6 +6,7 @@ > * > */ > > +#include <dt-bindings/clock/samsung,exynosautov920.h> > #include <dt-bindings/interrupt-controller/arm-gic.h> > #include <dt-bindings/soc/samsung,exynos-usi.h> > > @@ -38,17 +39,6 @@ xtcxo: clock { > clock-output-names = "oscclk"; > }; > > - /* > - * FIXME: Keep the stub clock for serial driver, until proper clock > - * driver is implemented. > - */ > - clock_usi: clock-usi { > - compatible = "fixed-clock"; > - #clock-cells = <0>; > - clock-frequency = <200000000>; > - clock-output-names = "usi"; > - }; > - > cpus: cpus { > #address-cells = <2>; > #size-cells = <0>; > @@ -182,6 +172,28 @@ chipid@10000000 { > reg = <0x10000000 0x24>; > }; > > + cmu_peric0: clock-controller@10800000 { > + compatible = "samsung,exynosautov920-cmu-peric0"; > + reg = <0x10800000 0x8000>; > + #clock-cells = <1>; > + > + clocks = <&xtcxo>, > + <&cmu_top DOUT_CLKCMU_PERIC0_NOC>, > + <&cmu_top DOUT_CLKCMU_PERIC0_IP>; > + clock-names = "oscclk", > + "dout_clkcmu_peric0_noc", > + "dout_clkcmu_peric0_ip"; > + }; > + > + cmu_top: clock-controller@11000000 { > + compatible = "samsung,exynosautov920-cmu-top"; > + reg = <0x11000000 0x8000>; > + #clock-cells = <1>; > + > + clocks = <&xtcxo>; > + clock-names = "oscclk"; > + }; > + > gic: interrupt-controller@10400000 { > compatible = "arm,gic-v3"; > #interrupt-cells = <3>; > @@ -213,7 +225,8 @@ usi_0: usi@108800c0 { > #address-cells = <1>; > #size-cells = <1>; > ranges; > - clocks = <&clock_usi>, <&clock_usi>; > + clocks = <&cmu_peric0 CLK_DOUT_PERIC0_USI00_USI>, > + <&cmu_peric0 CLK_MOUT_PERIC0_NOC_USER>; it seems that the clocks have been switched. CLK_DOUT_PERIC0_USI00_USI is ipclk and CLK_MOUT_PERIC0_NOC_USER is pclk of USI. > clock-names = "pclk", "ipclk"; > status = "disabled"; > > @@ -224,7 +237,8 @@ serial_0: serial@10880000 { > interrupts = <GIC_SPI 764 IRQ_TYPE_LEVEL_HIGH>; > pinctrl-names = "default"; > pinctrl-0 = <&uart0_bus>; > - clocks = <&clock_usi>, <&clock_usi>; > + clocks = <&cmu_peric0 CLK_MOUT_PERIC0_NOC_USER>, > + <&cmu_peric0 CLK_DOUT_PERIC0_USI00_USI>; > clock-names = "uart", "clk_uart_baud0"; > samsung,uart-fifosize = <256>; > status = "disabled"; Thanks Jaewon Kim
Hello Jaewon, > -----Original Message----- > From: Jaewon Kim <jaewon02.kim@samsung.com> > Sent: Friday, July 5, 2024 1:42 PM > To: Sunyeal Hong <sunyeal.hong@samsung.com>; Krzysztof Kozlowski > <krzk@kernel.org>; Sylwester Nawrocki <s.nawrocki@samsung.com>; Chanwoo > Choi <cw00.choi@samsung.com>; Alim Akhtar <alim.akhtar@samsung.com>; > Michael Turquette <mturquette@baylibre.com>; Stephen Boyd > <sboyd@kernel.org> > Cc: linux-samsung-soc@vger.kernel.org; linux-clk@vger.kernel.org; linux- > kernel@vger.kernel.org > Subject: Re: [PATCH 3/5] arm64: dts: exynos: add initial CMU clock nodes > in Exynos Auto v920 > > Hi Sunyeal, > > > On 7/5/24 11:11, Sunyeal Hong wrote: > > Add cmu_top, cmu_peric0 clock nodes and switch USI clocks instead of > > dummy fixed-rate-clock. > > > > Signed-off-by: Sunyeal Hong <sunyeal.hong@samsung.com> > > --- > > .../arm64/boot/dts/exynos/exynosautov920.dtsi | 40 +++++++++++++------ > > 1 file changed, 27 insertions(+), 13 deletions(-) > > > > diff --git a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi > > b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi > > index c1c8566d74f5..1659c0a375c9 100644 > > --- a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi > > +++ b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi > > @@ -6,6 +6,7 @@ > > * > > */ > > > > +#include <dt-bindings/clock/samsung,exynosautov920.h> > > #include <dt-bindings/interrupt-controller/arm-gic.h> > > #include <dt-bindings/soc/samsung,exynos-usi.h> > > > > @@ -38,17 +39,6 @@ xtcxo: clock { > > clock-output-names = "oscclk"; > > }; > > > > - /* > > - * FIXME: Keep the stub clock for serial driver, until proper clock > > - * driver is implemented. > > - */ > > - clock_usi: clock-usi { > > - compatible = "fixed-clock"; > > - #clock-cells = <0>; > > - clock-frequency = <200000000>; > > - clock-output-names = "usi"; > > - }; > > - > > cpus: cpus { > > #address-cells = <2>; > > #size-cells = <0>; > > @@ -182,6 +172,28 @@ chipid@10000000 { > > reg = <0x10000000 0x24>; > > }; > > > > + cmu_peric0: clock-controller@10800000 { > > + compatible = "samsung,exynosautov920-cmu-peric0"; > > + reg = <0x10800000 0x8000>; > > + #clock-cells = <1>; > > + > > + clocks = <&xtcxo>, > > + <&cmu_top DOUT_CLKCMU_PERIC0_NOC>, > > + <&cmu_top DOUT_CLKCMU_PERIC0_IP>; > > + clock-names = "oscclk", > > + "dout_clkcmu_peric0_noc", > > + "dout_clkcmu_peric0_ip"; > > + }; > > + > > + cmu_top: clock-controller@11000000 { > > + compatible = "samsung,exynosautov920-cmu-top"; > > + reg = <0x11000000 0x8000>; > > + #clock-cells = <1>; > > + > > + clocks = <&xtcxo>; > > + clock-names = "oscclk"; > > + }; > > + > > gic: interrupt-controller@10400000 { > > compatible = "arm,gic-v3"; > > #interrupt-cells = <3>; > > @@ -213,7 +225,8 @@ usi_0: usi@108800c0 { > > #address-cells = <1>; > > #size-cells = <1>; > > ranges; > > - clocks = <&clock_usi>, <&clock_usi>; > > + clocks = <&cmu_peric0 CLK_DOUT_PERIC0_USI00_USI>, > > + <&cmu_peric0 CLK_MOUT_PERIC0_NOC_USER>; > > it seems that the clocks have been switched. > CLK_DOUT_PERIC0_USI00_USI is ipclk and CLK_MOUT_PERIC0_NOC_USER is pclk of > USI. > > > > > clock-names = "pclk", "ipclk"; > > status = "disabled"; > > > > @@ -224,7 +237,8 @@ serial_0: serial@10880000 { > > interrupts = <GIC_SPI 764 IRQ_TYPE_LEVEL_HIGH>; > > pinctrl-names = "default"; > > pinctrl-0 = <&uart0_bus>; > > - clocks = <&clock_usi>, <&clock_usi>; > > + clocks = <&cmu_peric0 CLK_MOUT_PERIC0_NOC_USER>, > > + <&cmu_peric0 CLK_DOUT_PERIC0_USI00_USI>; > > clock-names = "uart", "clk_uart_baud0"; > > samsung,uart-fifosize = <256>; > > status = "disabled"; > > Thanks > Jaewon Kim > I will change ipclk and pclk clock node as you requested. Thanks, Sunyeal Hong
diff --git a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi index c1c8566d74f5..1659c0a375c9 100644 --- a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi +++ b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi @@ -6,6 +6,7 @@ * */ +#include <dt-bindings/clock/samsung,exynosautov920.h> #include <dt-bindings/interrupt-controller/arm-gic.h> #include <dt-bindings/soc/samsung,exynos-usi.h> @@ -38,17 +39,6 @@ xtcxo: clock { clock-output-names = "oscclk"; }; - /* - * FIXME: Keep the stub clock for serial driver, until proper clock - * driver is implemented. - */ - clock_usi: clock-usi { - compatible = "fixed-clock"; - #clock-cells = <0>; - clock-frequency = <200000000>; - clock-output-names = "usi"; - }; - cpus: cpus { #address-cells = <2>; #size-cells = <0>; @@ -182,6 +172,28 @@ chipid@10000000 { reg = <0x10000000 0x24>; }; + cmu_peric0: clock-controller@10800000 { + compatible = "samsung,exynosautov920-cmu-peric0"; + reg = <0x10800000 0x8000>; + #clock-cells = <1>; + + clocks = <&xtcxo>, + <&cmu_top DOUT_CLKCMU_PERIC0_NOC>, + <&cmu_top DOUT_CLKCMU_PERIC0_IP>; + clock-names = "oscclk", + "dout_clkcmu_peric0_noc", + "dout_clkcmu_peric0_ip"; + }; + + cmu_top: clock-controller@11000000 { + compatible = "samsung,exynosautov920-cmu-top"; + reg = <0x11000000 0x8000>; + #clock-cells = <1>; + + clocks = <&xtcxo>; + clock-names = "oscclk"; + }; + gic: interrupt-controller@10400000 { compatible = "arm,gic-v3"; #interrupt-cells = <3>; @@ -213,7 +225,8 @@ usi_0: usi@108800c0 { #address-cells = <1>; #size-cells = <1>; ranges; - clocks = <&clock_usi>, <&clock_usi>; + clocks = <&cmu_peric0 CLK_DOUT_PERIC0_USI00_USI>, + <&cmu_peric0 CLK_MOUT_PERIC0_NOC_USER>; clock-names = "pclk", "ipclk"; status = "disabled"; @@ -224,7 +237,8 @@ serial_0: serial@10880000 { interrupts = <GIC_SPI 764 IRQ_TYPE_LEVEL_HIGH>; pinctrl-names = "default"; pinctrl-0 = <&uart0_bus>; - clocks = <&clock_usi>, <&clock_usi>; + clocks = <&cmu_peric0 CLK_MOUT_PERIC0_NOC_USER>, + <&cmu_peric0 CLK_DOUT_PERIC0_USI00_USI>; clock-names = "uart", "clk_uart_baud0"; samsung,uart-fifosize = <256>; status = "disabled";
Add cmu_top, cmu_peric0 clock nodes and switch USI clocks instead of dummy fixed-rate-clock. Signed-off-by: Sunyeal Hong <sunyeal.hong@samsung.com> --- .../arm64/boot/dts/exynos/exynosautov920.dtsi | 40 +++++++++++++------ 1 file changed, 27 insertions(+), 13 deletions(-)