| Message ID | 20211004012739.39053-5-samuel@sholland.org (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | DRAM devfreq support for Allwinner A64/H5 | expand |
On 10/4/21 10:27 AM, Samuel Holland wrote: > In order to support memory dynamic frequency scaling (MDFS), the MBUS > binding now requires enumerating more resources. Provide them in the > device tree. > > Since the H3 and H5 have different clock divider limits, they need > separate compatibles. > > Signed-off-by: Samuel Holland <samuel@sholland.org> > --- > arch/arm/boot/dts/sun8i-h3.dtsi | 4 ++++ > arch/arm/boot/dts/sunxi-h3-h5.dtsi | 11 ++++++++--- > arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi | 4 ++++ > 3 files changed, 16 insertions(+), 3 deletions(-) > > diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi > index 4e89701df91f..43acb98cf390 100644 > --- a/arch/arm/boot/dts/sun8i-h3.dtsi > +++ b/arch/arm/boot/dts/sun8i-h3.dtsi > @@ -282,6 +282,10 @@ &display_clocks { > compatible = "allwinner,sun8i-h3-de2-clk"; > }; > > +&mbus { > + compatible = "allwinner,sun8i-h3-mbus"; > +}; > + > &mmc0 { > compatible = "allwinner,sun7i-a20-mmc"; > clocks = <&ccu CLK_BUS_MMC0>, > diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi > index c7428df9469e..3a683e190dab 100644 > --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi > +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi > @@ -568,9 +568,14 @@ external_mdio: mdio@2 { > }; > > mbus: dram-controller@1c62000 { > - compatible = "allwinner,sun8i-h3-mbus"; > - reg = <0x01c62000 0x1000>; > - clocks = <&ccu CLK_MBUS>; > + /* compatible is in per SoC .dtsi file */ > + reg = <0x01c62000 0x1000>, > + <0x01c63000 0x1000>; > + reg-names = "mbus", "dram"; > + clocks = <&ccu CLK_MBUS>, > + <&ccu CLK_DRAM>, > + <&ccu CLK_BUS_DRAM>; > + clock-names = "mbus", "dram", "bus"; > #address-cells = <1>; > #size-cells = <1>; > dma-ranges = <0x00000000 0x40000000 0xc0000000>; > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi > index 578a63dedf46..35d5d238e313 100644 > --- a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi > +++ b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi > @@ -233,6 +233,10 @@ &display_clocks { > compatible = "allwinner,sun50i-h5-de2-clk"; > }; > > +&mbus { > + compatible = "allwinner,sun50i-h5-mbus"; > +}; > + > &mmc0 { > compatible = "allwinner,sun50i-h5-mmc", > "allwinner,sun50i-a64-mmc"; > Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi index 4e89701df91f..43acb98cf390 100644 --- a/arch/arm/boot/dts/sun8i-h3.dtsi +++ b/arch/arm/boot/dts/sun8i-h3.dtsi @@ -282,6 +282,10 @@ &display_clocks { compatible = "allwinner,sun8i-h3-de2-clk"; }; +&mbus { + compatible = "allwinner,sun8i-h3-mbus"; +}; + &mmc0 { compatible = "allwinner,sun7i-a20-mmc"; clocks = <&ccu CLK_BUS_MMC0>, diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi index c7428df9469e..3a683e190dab 100644 --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi @@ -568,9 +568,14 @@ external_mdio: mdio@2 { }; mbus: dram-controller@1c62000 { - compatible = "allwinner,sun8i-h3-mbus"; - reg = <0x01c62000 0x1000>; - clocks = <&ccu CLK_MBUS>; + /* compatible is in per SoC .dtsi file */ + reg = <0x01c62000 0x1000>, + <0x01c63000 0x1000>; + reg-names = "mbus", "dram"; + clocks = <&ccu CLK_MBUS>, + <&ccu CLK_DRAM>, + <&ccu CLK_BUS_DRAM>; + clock-names = "mbus", "dram", "bus"; #address-cells = <1>; #size-cells = <1>; dma-ranges = <0x00000000 0x40000000 0xc0000000>; diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi index 578a63dedf46..35d5d238e313 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi @@ -233,6 +233,10 @@ &display_clocks { compatible = "allwinner,sun50i-h5-de2-clk"; }; +&mbus { + compatible = "allwinner,sun50i-h5-mbus"; +}; + &mmc0 { compatible = "allwinner,sun50i-h5-mmc", "allwinner,sun50i-a64-mmc";
In order to support memory dynamic frequency scaling (MDFS), the MBUS binding now requires enumerating more resources. Provide them in the device tree. Since the H3 and H5 have different clock divider limits, they need separate compatibles. Signed-off-by: Samuel Holland <samuel@sholland.org> --- arch/arm/boot/dts/sun8i-h3.dtsi | 4 ++++ arch/arm/boot/dts/sunxi-h3-h5.dtsi | 11 ++++++++--- arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi | 4 ++++ 3 files changed, 16 insertions(+), 3 deletions(-)