| Message ID | 20170124023230.3990-7-wens@csie.org |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
Hi, On Tue, Jan 24, 2017 at 10:32:25AM +0800, Chen-Yu Tsai wrote: > Add support for the USB clock controls found on the A80. > > Signed-off-by: Chen-Yu Tsai <wens@csie.org> > --- > .../devicetree/bindings/clock/sun9i-usb.txt | 24 ++++ > drivers/clk/sunxi-ng/Makefile | 1 + > drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c | 144 +++++++++++++++++++++ > drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.h | 25 ++++ > include/dt-bindings/clock/sun9i-a80-usb.h | 59 +++++++++ > include/dt-bindings/reset/sun9i-a80-usb.h | 56 ++++++++ > 6 files changed, 309 insertions(+) > create mode 100644 Documentation/devicetree/bindings/clock/sun9i-usb.txt > create mode 100644 drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c > create mode 100644 drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.h > create mode 100644 include/dt-bindings/clock/sun9i-a80-usb.h > create mode 100644 include/dt-bindings/reset/sun9i-a80-usb.h > > diff --git a/Documentation/devicetree/bindings/clock/sun9i-usb.txt b/Documentation/devicetree/bindings/clock/sun9i-usb.txt > new file mode 100644 > index 000000000000..c2d38626eaaa > --- /dev/null > +++ b/Documentation/devicetree/bindings/clock/sun9i-usb.txt > @@ -0,0 +1,24 @@ > +Allwinner A80 USB Clock Control Binding > +------------------------------------ > + > +Required properties : > +- compatible: must contain one of the following compatibles: > + - "allwinner,sun9i-a80-usb-clocks" > + > +- reg: Must contain the registers base address and length > +- clocks: phandle to the clocks feeding the USB subsystem. Two are needed: > + - "bus": the bus clock for the whole USB subsystem > + - "hosc": the high frequency oscillator (usually at 24MHz) > +- clock-names: Must contain the clock names described just above > +- #clock-cells : must contain 1 > +- #reset-cells : must contain 1 > + > +Example: > +usb_clocks: clock@00a08000 { > + compatible = "allwinner,sun9i-a80-usb-clks"; > + reg = <0x00a08000 0x8>; > + clocks = <&ccu CLK_BUS_USB>, <&osc24M>; > + clock-names = "bus", "hosc"; > + #clock-cells = <1>; > + #reset-cells = <1>; > +}; > diff --git a/drivers/clk/sunxi-ng/Makefile b/drivers/clk/sunxi-ng/Makefile > index 126bb7c1c3f7..8f37ef7fb67d 100644 > --- a/drivers/clk/sunxi-ng/Makefile > +++ b/drivers/clk/sunxi-ng/Makefile > @@ -26,3 +26,4 @@ obj-$(CONFIG_SUN8I_A33_CCU) += ccu-sun8i-a33.o > obj-$(CONFIG_SUN8I_H3_CCU) += ccu-sun8i-h3.o > obj-$(CONFIG_SUN8I_V3S_CCU) += ccu-sun8i-v3s.o > obj-$(CONFIG_SUN9I_A80_CCU) += ccu-sun9i-a80.o > +obj-$(CONFIG_SUN9I_A80_CCU) += ccu-sun9i-a80-usb.o > diff --git a/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c b/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c > new file mode 100644 > index 000000000000..1d76f24f7df3 > --- /dev/null > +++ b/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c > @@ -0,0 +1,144 @@ > +/* > + * Copyright (c) 2016 Chen-Yu Tsai. All rights reserved. > + * > + * This software is licensed under the terms of the GNU General Public > + * License version 2, as published by the Free Software Foundation, and > + * may be copied, distributed, and modified under those terms. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#include <linux/clk.h> > +#include <linux/clk-provider.h> > +#include <linux/of_address.h> > +#include <linux/platform_device.h> > + > +#include "ccu_common.h" > +#include "ccu_gate.h" > +#include "ccu_reset.h" > + > +#include "ccu-sun9i-a80-usb.h" > + > +static SUNXI_CCU_GATE(bus_hci0_clk, "bus-hci0", "bus-usb", 0x0, BIT(1), 0); > +static SUNXI_CCU_GATE(usb_ohci0_clk, "usb-ohci0", "osc24M", 0x0, BIT(2), 0); > +static SUNXI_CCU_GATE(bus_hci1_clk, "bus-hci1", "bus-usb", 0x0, BIT(3), 0); > +static SUNXI_CCU_GATE(bus_hci2_clk, "bus-hci2", "bus-usb", 0x0, BIT(5), 0); > +static SUNXI_CCU_GATE(usb_ohci2_clk, "usb-ohci2", "osc24M", 0x0, BIT(6), 0); In the current !sunxi-ng driver, there's a clock at offset 4, did you forget it? Thanks, Maxime
On Thu, Jan 26, 2017 at 6:14 PM, Maxime Ripard <maxime.ripard@free-electrons.com> wrote: > Hi, > > On Tue, Jan 24, 2017 at 10:32:25AM +0800, Chen-Yu Tsai wrote: >> Add support for the USB clock controls found on the A80. >> >> Signed-off-by: Chen-Yu Tsai <wens@csie.org> >> --- >> .../devicetree/bindings/clock/sun9i-usb.txt | 24 ++++ >> drivers/clk/sunxi-ng/Makefile | 1 + >> drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c | 144 +++++++++++++++++++++ >> drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.h | 25 ++++ >> include/dt-bindings/clock/sun9i-a80-usb.h | 59 +++++++++ >> include/dt-bindings/reset/sun9i-a80-usb.h | 56 ++++++++ >> 6 files changed, 309 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/clock/sun9i-usb.txt >> create mode 100644 drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c >> create mode 100644 drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.h >> create mode 100644 include/dt-bindings/clock/sun9i-a80-usb.h >> create mode 100644 include/dt-bindings/reset/sun9i-a80-usb.h >> >> diff --git a/Documentation/devicetree/bindings/clock/sun9i-usb.txt b/Documentation/devicetree/bindings/clock/sun9i-usb.txt >> new file mode 100644 >> index 000000000000..c2d38626eaaa >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/clock/sun9i-usb.txt >> @@ -0,0 +1,24 @@ >> +Allwinner A80 USB Clock Control Binding >> +------------------------------------ >> + >> +Required properties : >> +- compatible: must contain one of the following compatibles: >> + - "allwinner,sun9i-a80-usb-clocks" >> + >> +- reg: Must contain the registers base address and length >> +- clocks: phandle to the clocks feeding the USB subsystem. Two are needed: >> + - "bus": the bus clock for the whole USB subsystem >> + - "hosc": the high frequency oscillator (usually at 24MHz) >> +- clock-names: Must contain the clock names described just above >> +- #clock-cells : must contain 1 >> +- #reset-cells : must contain 1 >> + >> +Example: >> +usb_clocks: clock@00a08000 { >> + compatible = "allwinner,sun9i-a80-usb-clks"; >> + reg = <0x00a08000 0x8>; >> + clocks = <&ccu CLK_BUS_USB>, <&osc24M>; >> + clock-names = "bus", "hosc"; >> + #clock-cells = <1>; >> + #reset-cells = <1>; >> +}; >> diff --git a/drivers/clk/sunxi-ng/Makefile b/drivers/clk/sunxi-ng/Makefile >> index 126bb7c1c3f7..8f37ef7fb67d 100644 >> --- a/drivers/clk/sunxi-ng/Makefile >> +++ b/drivers/clk/sunxi-ng/Makefile >> @@ -26,3 +26,4 @@ obj-$(CONFIG_SUN8I_A33_CCU) += ccu-sun8i-a33.o >> obj-$(CONFIG_SUN8I_H3_CCU) += ccu-sun8i-h3.o >> obj-$(CONFIG_SUN8I_V3S_CCU) += ccu-sun8i-v3s.o >> obj-$(CONFIG_SUN9I_A80_CCU) += ccu-sun9i-a80.o >> +obj-$(CONFIG_SUN9I_A80_CCU) += ccu-sun9i-a80-usb.o >> diff --git a/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c b/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c >> new file mode 100644 >> index 000000000000..1d76f24f7df3 >> --- /dev/null >> +++ b/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c >> @@ -0,0 +1,144 @@ >> +/* >> + * Copyright (c) 2016 Chen-Yu Tsai. All rights reserved. >> + * >> + * This software is licensed under the terms of the GNU General Public >> + * License version 2, as published by the Free Software Foundation, and >> + * may be copied, distributed, and modified under those terms. >> + * >> + * This program is distributed in the hope that it will be useful, >> + * but WITHOUT ANY WARRANTY; without even the implied warranty of >> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >> + * GNU General Public License for more details. >> + */ >> + >> +#include <linux/clk.h> >> +#include <linux/clk-provider.h> >> +#include <linux/of_address.h> >> +#include <linux/platform_device.h> >> + >> +#include "ccu_common.h" >> +#include "ccu_gate.h" >> +#include "ccu_reset.h" >> + >> +#include "ccu-sun9i-a80-usb.h" >> + >> +static SUNXI_CCU_GATE(bus_hci0_clk, "bus-hci0", "bus-usb", 0x0, BIT(1), 0); >> +static SUNXI_CCU_GATE(usb_ohci0_clk, "usb-ohci0", "osc24M", 0x0, BIT(2), 0); >> +static SUNXI_CCU_GATE(bus_hci1_clk, "bus-hci1", "bus-usb", 0x0, BIT(3), 0); >> +static SUNXI_CCU_GATE(bus_hci2_clk, "bus-hci2", "bus-usb", 0x0, BIT(5), 0); >> +static SUNXI_CCU_GATE(usb_ohci2_clk, "usb-ohci2", "osc24M", 0x0, BIT(6), 0); > > In the current !sunxi-ng driver, there's a clock at offset 4, did you > forget it? It supposedly is for ohci1, but since the second USB host is HSIC only, and Allwinner does not even list ohci1 in its documents, it probably isn't there. IIRC the gate itself can be toggled. But there probably isn't anything connected. The old driver having a gate for it would be my mistake. ChenYu -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Thu, Jan 26, 2017 at 07:12:44PM +0800, Chen-Yu Tsai wrote: > On Thu, Jan 26, 2017 at 6:14 PM, Maxime Ripard > <maxime.ripard@free-electrons.com> wrote: > > Hi, > > > > On Tue, Jan 24, 2017 at 10:32:25AM +0800, Chen-Yu Tsai wrote: > >> Add support for the USB clock controls found on the A80. > >> > >> Signed-off-by: Chen-Yu Tsai <wens@csie.org> > >> --- > >> .../devicetree/bindings/clock/sun9i-usb.txt | 24 ++++ > >> drivers/clk/sunxi-ng/Makefile | 1 + > >> drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c | 144 +++++++++++++++++++++ > >> drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.h | 25 ++++ > >> include/dt-bindings/clock/sun9i-a80-usb.h | 59 +++++++++ > >> include/dt-bindings/reset/sun9i-a80-usb.h | 56 ++++++++ > >> 6 files changed, 309 insertions(+) > >> create mode 100644 Documentation/devicetree/bindings/clock/sun9i-usb.txt > >> create mode 100644 drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c > >> create mode 100644 drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.h > >> create mode 100644 include/dt-bindings/clock/sun9i-a80-usb.h > >> create mode 100644 include/dt-bindings/reset/sun9i-a80-usb.h > >> > >> diff --git a/Documentation/devicetree/bindings/clock/sun9i-usb.txt b/Documentation/devicetree/bindings/clock/sun9i-usb.txt > >> new file mode 100644 > >> index 000000000000..c2d38626eaaa > >> --- /dev/null > >> +++ b/Documentation/devicetree/bindings/clock/sun9i-usb.txt > >> @@ -0,0 +1,24 @@ > >> +Allwinner A80 USB Clock Control Binding > >> +------------------------------------ > >> + > >> +Required properties : > >> +- compatible: must contain one of the following compatibles: > >> + - "allwinner,sun9i-a80-usb-clocks" > >> + > >> +- reg: Must contain the registers base address and length > >> +- clocks: phandle to the clocks feeding the USB subsystem. Two are needed: > >> + - "bus": the bus clock for the whole USB subsystem > >> + - "hosc": the high frequency oscillator (usually at 24MHz) > >> +- clock-names: Must contain the clock names described just above > >> +- #clock-cells : must contain 1 > >> +- #reset-cells : must contain 1 > >> + > >> +Example: > >> +usb_clocks: clock@00a08000 { > >> + compatible = "allwinner,sun9i-a80-usb-clks"; > >> + reg = <0x00a08000 0x8>; > >> + clocks = <&ccu CLK_BUS_USB>, <&osc24M>; > >> + clock-names = "bus", "hosc"; > >> + #clock-cells = <1>; > >> + #reset-cells = <1>; > >> +}; > >> diff --git a/drivers/clk/sunxi-ng/Makefile b/drivers/clk/sunxi-ng/Makefile > >> index 126bb7c1c3f7..8f37ef7fb67d 100644 > >> --- a/drivers/clk/sunxi-ng/Makefile > >> +++ b/drivers/clk/sunxi-ng/Makefile > >> @@ -26,3 +26,4 @@ obj-$(CONFIG_SUN8I_A33_CCU) += ccu-sun8i-a33.o > >> obj-$(CONFIG_SUN8I_H3_CCU) += ccu-sun8i-h3.o > >> obj-$(CONFIG_SUN8I_V3S_CCU) += ccu-sun8i-v3s.o > >> obj-$(CONFIG_SUN9I_A80_CCU) += ccu-sun9i-a80.o > >> +obj-$(CONFIG_SUN9I_A80_CCU) += ccu-sun9i-a80-usb.o > >> diff --git a/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c b/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c > >> new file mode 100644 > >> index 000000000000..1d76f24f7df3 > >> --- /dev/null > >> +++ b/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c > >> @@ -0,0 +1,144 @@ > >> +/* > >> + * Copyright (c) 2016 Chen-Yu Tsai. All rights reserved. > >> + * > >> + * This software is licensed under the terms of the GNU General Public > >> + * License version 2, as published by the Free Software Foundation, and > >> + * may be copied, distributed, and modified under those terms. > >> + * > >> + * This program is distributed in the hope that it will be useful, > >> + * but WITHOUT ANY WARRANTY; without even the implied warranty of > >> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > >> + * GNU General Public License for more details. > >> + */ > >> + > >> +#include <linux/clk.h> > >> +#include <linux/clk-provider.h> > >> +#include <linux/of_address.h> > >> +#include <linux/platform_device.h> > >> + > >> +#include "ccu_common.h" > >> +#include "ccu_gate.h" > >> +#include "ccu_reset.h" > >> + > >> +#include "ccu-sun9i-a80-usb.h" > >> + > >> +static SUNXI_CCU_GATE(bus_hci0_clk, "bus-hci0", "bus-usb", 0x0, BIT(1), 0); > >> +static SUNXI_CCU_GATE(usb_ohci0_clk, "usb-ohci0", "osc24M", 0x0, BIT(2), 0); > >> +static SUNXI_CCU_GATE(bus_hci1_clk, "bus-hci1", "bus-usb", 0x0, BIT(3), 0); > >> +static SUNXI_CCU_GATE(bus_hci2_clk, "bus-hci2", "bus-usb", 0x0, BIT(5), 0); > >> +static SUNXI_CCU_GATE(usb_ohci2_clk, "usb-ohci2", "osc24M", 0x0, BIT(6), 0); > > > > In the current !sunxi-ng driver, there's a clock at offset 4, did you > > forget it? > > It supposedly is for ohci1, but since the second USB host is HSIC > only, and Allwinner does not even list ohci1 in its documents, it > probably isn't there. IIRC the gate itself can be toggled. But > there probably isn't anything connected. The old driver having > a gate for it would be my mistake. Ok :) Maxime
On Tue, Jan 24, 2017 at 10:32:25AM +0800, Chen-Yu Tsai wrote: > Add support for the USB clock controls found on the A80. > > Signed-off-by: Chen-Yu Tsai <wens@csie.org> > --- > .../devicetree/bindings/clock/sun9i-usb.txt | 24 ++++ > drivers/clk/sunxi-ng/Makefile | 1 + > drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c | 144 +++++++++++++++++++++ > drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.h | 25 ++++ > include/dt-bindings/clock/sun9i-a80-usb.h | 59 +++++++++ > include/dt-bindings/reset/sun9i-a80-usb.h | 56 ++++++++ > 6 files changed, 309 insertions(+) > create mode 100644 Documentation/devicetree/bindings/clock/sun9i-usb.txt > create mode 100644 drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c > create mode 100644 drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.h > create mode 100644 include/dt-bindings/clock/sun9i-a80-usb.h > create mode 100644 include/dt-bindings/reset/sun9i-a80-usb.h > > diff --git a/Documentation/devicetree/bindings/clock/sun9i-usb.txt b/Documentation/devicetree/bindings/clock/sun9i-usb.txt > new file mode 100644 > index 000000000000..c2d38626eaaa > --- /dev/null > +++ b/Documentation/devicetree/bindings/clock/sun9i-usb.txt > @@ -0,0 +1,24 @@ > +Allwinner A80 USB Clock Control Binding > +------------------------------------ > + > +Required properties : > +- compatible: must contain one of the following compatibles: > + - "allwinner,sun9i-a80-usb-clocks" > + > +- reg: Must contain the registers base address and length > +- clocks: phandle to the clocks feeding the USB subsystem. Two are needed: > + - "bus": the bus clock for the whole USB subsystem > + - "hosc": the high frequency oscillator (usually at 24MHz) > +- clock-names: Must contain the clock names described just above > +- #clock-cells : must contain 1 > +- #reset-cells : must contain 1 > + > +Example: > +usb_clocks: clock@00a08000 { Drop leading 0s. With that, for the binding: Acked-by: Rob Herring <robh@kernel.org> > + compatible = "allwinner,sun9i-a80-usb-clks"; > + reg = <0x00a08000 0x8>; > + clocks = <&ccu CLK_BUS_USB>, <&osc24M>; > + clock-names = "bus", "hosc"; > + #clock-cells = <1>; > + #reset-cells = <1>; > +}; -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/clock/sun9i-usb.txt b/Documentation/devicetree/bindings/clock/sun9i-usb.txt new file mode 100644 index 000000000000..c2d38626eaaa --- /dev/null +++ b/Documentation/devicetree/bindings/clock/sun9i-usb.txt @@ -0,0 +1,24 @@ +Allwinner A80 USB Clock Control Binding +------------------------------------ + +Required properties : +- compatible: must contain one of the following compatibles: + - "allwinner,sun9i-a80-usb-clocks" + +- reg: Must contain the registers base address and length +- clocks: phandle to the clocks feeding the USB subsystem. Two are needed: + - "bus": the bus clock for the whole USB subsystem + - "hosc": the high frequency oscillator (usually at 24MHz) +- clock-names: Must contain the clock names described just above +- #clock-cells : must contain 1 +- #reset-cells : must contain 1 + +Example: +usb_clocks: clock@00a08000 { + compatible = "allwinner,sun9i-a80-usb-clks"; + reg = <0x00a08000 0x8>; + clocks = <&ccu CLK_BUS_USB>, <&osc24M>; + clock-names = "bus", "hosc"; + #clock-cells = <1>; + #reset-cells = <1>; +}; diff --git a/drivers/clk/sunxi-ng/Makefile b/drivers/clk/sunxi-ng/Makefile index 126bb7c1c3f7..8f37ef7fb67d 100644 --- a/drivers/clk/sunxi-ng/Makefile +++ b/drivers/clk/sunxi-ng/Makefile @@ -26,3 +26,4 @@ obj-$(CONFIG_SUN8I_A33_CCU) += ccu-sun8i-a33.o obj-$(CONFIG_SUN8I_H3_CCU) += ccu-sun8i-h3.o obj-$(CONFIG_SUN8I_V3S_CCU) += ccu-sun8i-v3s.o obj-$(CONFIG_SUN9I_A80_CCU) += ccu-sun9i-a80.o +obj-$(CONFIG_SUN9I_A80_CCU) += ccu-sun9i-a80-usb.o diff --git a/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c b/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c new file mode 100644 index 000000000000..1d76f24f7df3 --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c @@ -0,0 +1,144 @@ +/* + * Copyright (c) 2016 Chen-Yu Tsai. All rights reserved. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/of_address.h> +#include <linux/platform_device.h> + +#include "ccu_common.h" +#include "ccu_gate.h" +#include "ccu_reset.h" + +#include "ccu-sun9i-a80-usb.h" + +static SUNXI_CCU_GATE(bus_hci0_clk, "bus-hci0", "bus-usb", 0x0, BIT(1), 0); +static SUNXI_CCU_GATE(usb_ohci0_clk, "usb-ohci0", "osc24M", 0x0, BIT(2), 0); +static SUNXI_CCU_GATE(bus_hci1_clk, "bus-hci1", "bus-usb", 0x0, BIT(3), 0); +static SUNXI_CCU_GATE(bus_hci2_clk, "bus-hci2", "bus-usb", 0x0, BIT(5), 0); +static SUNXI_CCU_GATE(usb_ohci2_clk, "usb-ohci2", "osc24M", 0x0, BIT(6), 0); + +static SUNXI_CCU_GATE(usb0_phy_clk, "usb0-phy", "osc24M", 0x4, BIT(1), 0); +static SUNXI_CCU_GATE(usb1_hsic_clk, "usb1-hsic", "osc24M", 0x4, BIT(2), 0); +static SUNXI_CCU_GATE(usb1_phy_clk, "usb1-phy", "osc24M", 0x4, BIT(3), 0); +static SUNXI_CCU_GATE(usb2_hsic_clk, "usb2-hsic", "osc24M", 0x4, BIT(4), 0); +static SUNXI_CCU_GATE(usb2_phy_clk, "usb2-phy", "osc24M", 0x4, BIT(5), 0); +static SUNXI_CCU_GATE(usb_hsic_clk, "usb-hsic", "osc24M", 0x4, BIT(10), 0); + +static struct ccu_common *sun9i_a80_usb_clks[] = { + &bus_hci0_clk.common, + &usb_ohci0_clk.common, + &bus_hci1_clk.common, + &bus_hci2_clk.common, + &usb_ohci2_clk.common, + + &usb0_phy_clk.common, + &usb1_hsic_clk.common, + &usb1_phy_clk.common, + &usb2_hsic_clk.common, + &usb2_phy_clk.common, + &usb_hsic_clk.common, +}; + +static struct clk_hw_onecell_data sun9i_a80_usb_hw_clks = { + .hws = { + [CLK_BUS_HCI0] = &bus_hci0_clk.common.hw, + [CLK_USB_OHCI0] = &usb_ohci0_clk.common.hw, + [CLK_BUS_HCI1] = &bus_hci1_clk.common.hw, + [CLK_BUS_HCI2] = &bus_hci2_clk.common.hw, + [CLK_USB_OHCI2] = &usb_ohci2_clk.common.hw, + + [CLK_USB0_PHY] = &usb0_phy_clk.common.hw, + [CLK_USB1_HSIC] = &usb1_hsic_clk.common.hw, + [CLK_USB1_PHY] = &usb1_phy_clk.common.hw, + [CLK_USB2_HSIC] = &usb2_hsic_clk.common.hw, + [CLK_USB2_PHY] = &usb2_phy_clk.common.hw, + [CLK_USB_HSIC] = &usb_hsic_clk.common.hw, + }, + .num = CLK_NUMBER, +}; + +static struct ccu_reset_map sun9i_a80_usb_resets[] = { + [RST_USB0_HCI] = { 0x0, BIT(17) }, + [RST_USB1_HCI] = { 0x0, BIT(18) }, + [RST_USB2_HCI] = { 0x0, BIT(19) }, + + [RST_USB0_PHY] = { 0x4, BIT(17) }, + [RST_USB1_HSIC] = { 0x4, BIT(18) }, + [RST_USB1_PHY] = { 0x4, BIT(19) }, + [RST_USB2_HSIC] = { 0x4, BIT(20) }, + [RST_USB2_PHY] = { 0x4, BIT(21) }, +}; + +static const struct sunxi_ccu_desc sun9i_a80_usb_clk_desc = { + .ccu_clks = sun9i_a80_usb_clks, + .num_ccu_clks = ARRAY_SIZE(sun9i_a80_usb_clks), + + .hw_clks = &sun9i_a80_usb_hw_clks, + + .resets = sun9i_a80_usb_resets, + .num_resets = ARRAY_SIZE(sun9i_a80_usb_resets), +}; + +static int sun9i_a80_usb_clk_probe(struct platform_device *pdev) +{ + struct resource *res; + struct clk *bus_clk; + void __iomem *reg; + int ret; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + reg = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(reg)) + return PTR_ERR(reg); + + bus_clk = devm_clk_get(&pdev->dev, "bus"); + if (IS_ERR(bus_clk)) { + ret = PTR_ERR(bus_clk); + if (ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "Couldn't get bus clk: %d\n", ret); + return ret; + } + + /* The bus clock needs to be enabled for us to access the registers */ + ret = clk_prepare_enable(bus_clk); + if (ret) { + dev_err(&pdev->dev, "Couldn't enable bus clk: %d\n", ret); + return ret; + } + + ret = sunxi_ccu_probe(pdev->dev.of_node, reg, + &sun9i_a80_usb_clk_desc); + if (ret) + goto err_disable_clk; + + return 0; + +err_disable_clk: + clk_disable_unprepare(bus_clk); + return ret; +} + +static const struct of_device_id sun9i_a80_usb_clk_ids[] = { + { .compatible = "allwinner,sun9i-a80-usb-clks" }, + { } +}; + +static struct platform_driver sun9i_a80_usb_clk_driver = { + .probe = sun9i_a80_usb_clk_probe, + .driver = { + .name = "sun9i-a80-usb-clks", + .of_match_table = sun9i_a80_usb_clk_ids, + }, +}; +builtin_platform_driver(sun9i_a80_usb_clk_driver); diff --git a/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.h b/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.h new file mode 100644 index 000000000000..a184280ba854 --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.h @@ -0,0 +1,25 @@ +/* + * Copyright 2016 Chen-Yu Tsai + * + * Chen-Yu Tsai <wens@csie.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _CCU_SUN9I_A80_USB_H_ +#define _CCU_SUN9I_A80_USB_H_ + +#include <dt-bindings/clock/sun9i-a80-usb.h> +#include <dt-bindings/reset/sun9i-a80-usb.h> + +#define CLK_NUMBER (CLK_USB_HSIC + 1) + +#endif /* _CCU_SUN9I_A80_USB_H_ */ diff --git a/include/dt-bindings/clock/sun9i-a80-usb.h b/include/dt-bindings/clock/sun9i-a80-usb.h new file mode 100644 index 000000000000..783a60d2ccea --- /dev/null +++ b/include/dt-bindings/clock/sun9i-a80-usb.h @@ -0,0 +1,59 @@ +/* + * Copyright (C) 2016 Chen-Yu Tsai <wens@csie.org> + * + * This file is dual-licensed: you can use it either under the terms + * of the GPL or the X11 license, at your option. Note that this dual + * licensing only applies to this file, and not this project as a + * whole. + * + * a) This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Or, alternatively, + * + * b) Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _DT_BINDINGS_CLOCK_SUN9I_A80_USB_H_ +#define _DT_BINDINGS_CLOCK_SUN9I_A80_USB_H_ + +#define CLK_BUS_HCI0 0 +#define CLK_USB_OHCI0 1 +#define CLK_BUS_HCI1 2 +#define CLK_BUS_HCI2 3 +#define CLK_USB_OHCI2 4 + +#define CLK_USB0_PHY 5 +#define CLK_USB1_HSIC 6 +#define CLK_USB1_PHY 7 +#define CLK_USB2_HSIC 8 +#define CLK_USB2_PHY 9 +#define CLK_USB_HSIC 10 + +#endif /* _DT_BINDINGS_CLOCK_SUN9I_A80_USB_H_ */ diff --git a/include/dt-bindings/reset/sun9i-a80-usb.h b/include/dt-bindings/reset/sun9i-a80-usb.h new file mode 100644 index 000000000000..ee492864c2aa --- /dev/null +++ b/include/dt-bindings/reset/sun9i-a80-usb.h @@ -0,0 +1,56 @@ +/* + * Copyright (C) 2016 Chen-Yu Tsai <wens@csie.org> + * + * This file is dual-licensed: you can use it either under the terms + * of the GPL or the X11 license, at your option. Note that this dual + * licensing only applies to this file, and not this project as a + * whole. + * + * a) This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Or, alternatively, + * + * b) Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _DT_BINDINGS_RESET_SUN9I_A80_USB_H_ +#define _DT_BINDINGS_RESET_SUN9I_A80_USB_H_ + +#define RST_USB0_HCI 0 +#define RST_USB1_HCI 1 +#define RST_USB2_HCI 2 + +#define RST_USB0_PHY 3 +#define RST_USB1_HSIC 4 +#define RST_USB1_PHY 5 +#define RST_USB2_HSIC 6 +#define RST_USB2_PHY 7 + +#endif /* _DT_BINDINGS_RESET_SUN9I_A80_USB_H_ */
Add support for the USB clock controls found on the A80. Signed-off-by: Chen-Yu Tsai <wens@csie.org> --- .../devicetree/bindings/clock/sun9i-usb.txt | 24 ++++ drivers/clk/sunxi-ng/Makefile | 1 + drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c | 144 +++++++++++++++++++++ drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.h | 25 ++++ include/dt-bindings/clock/sun9i-a80-usb.h | 59 +++++++++ include/dt-bindings/reset/sun9i-a80-usb.h | 56 ++++++++ 6 files changed, 309 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/sun9i-usb.txt create mode 100644 drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c create mode 100644 drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.h create mode 100644 include/dt-bindings/clock/sun9i-a80-usb.h create mode 100644 include/dt-bindings/reset/sun9i-a80-usb.h