| Message ID | 20190220015857.7136-6-andrew.smirnov@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | PCIE support for i.MX8MQ (DT changes) | expand |
Am Dienstag, den 19.02.2019, 17:58 -0800 schrieb Andrey Smirnov: > Enable PCIE0 interface connected to BCM4356 WiFi/Bluetooth module. > > Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> > Cc: Shawn Guo <shawnguo@kernel.org> > Cc: Fabio Estevam <fabio.estevam@nxp.com> > Cc: Chris Healy <cphealy@gmail.com> > Cc: Lucas Stach <l.stach@pengutronix.de> > Cc: Leonard Crestez <leonard.crestez@nxp.com> > Cc: "A.s. Dong" <aisheng.dong@nxp.com> > Cc: Richard Zhu <hongxing.zhu@nxp.com> > Cc: linux-imx@nxp.com > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kernel@vger.kernel.org Reviewed-by: Lucas Stach <l.stach@pengutronix.de> > --- > arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 42 ++++++++++++++++++++ > 1 file changed, 42 insertions(+) > > diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts > index 64acccc4bfcb..226aeb9791a5 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts > +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts > @@ -31,6 +31,12 @@ > gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>; > enable-active-high; > }; > + > + pcie0_refclk: pcie0-refclk { > + compatible = "fixed-clock"; > + #clock-cells = <0>; > + clock-frequency = <100000000>; > + }; > }; > > &fec1 { > @@ -40,6 +46,17 @@ > status = "okay"; > }; > > +&gpio5 { > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_wifi_reset>; > + > + wl-reg-on { > + gpio-hog; > + gpios = <29 GPIO_ACTIVE_HIGH>; > + output-high; > + }; > +}; > + > &i2c1 { > clock-frequency = <100000>; > pinctrl-names = "default"; > @@ -131,6 +148,18 @@ > }; > }; > > +&pcie0 { > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_pcie0>; > + reset-gpio = <&gpio5 28 GPIO_ACTIVE_LOW>; > + clocks = <&clk IMX8MQ_CLK_PCIE1_ROOT>, > + <&clk IMX8MQ_CLK_PCIE1_AUX>, > + <&clk IMX8MQ_CLK_PCIE1_PHY>, > + <&pcie0_refclk>; > + clock-names = "pcie", "pcie_aux", "pcie_phy", "pcie_bus"; > + status = "okay"; > +}; > + > &uart1 { > pinctrl-names = "default"; > pinctrl-0 = <&pinctrl_uart1>; > @@ -195,6 +224,13 @@ > >; > }; > > + pinctrl_pcie0: pcie0grp { > + fsl,pins = < > + MX8MQ_IOMUXC_I2C4_SCL_PCIE1_CLKREQ_B 0x76 > + MX8MQ_IOMUXC_UART4_RXD_GPIO5_IO28 0x16 > + >; > + }; > + > pinctrl_reg_usdhc2: regusdhc2grpgpio { > fsl,pins = < > MX8MQ_IOMUXC_SD2_RESET_B_GPIO2_IO19 0x41 > @@ -300,4 +336,10 @@ > MX8MQ_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0xc6 > >; > }; > + > + pinctrl_wifi_reset: wifiresetgrp { > + fsl,pins = < > + MX8MQ_IOMUXC_UART4_TXD_GPIO5_IO29 0x16 > + >; > + }; > };
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts index 64acccc4bfcb..226aeb9791a5 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts @@ -31,6 +31,12 @@ gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>; enable-active-high; }; + + pcie0_refclk: pcie0-refclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <100000000>; + }; }; &fec1 { @@ -40,6 +46,17 @@ status = "okay"; }; +&gpio5 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_wifi_reset>; + + wl-reg-on { + gpio-hog; + gpios = <29 GPIO_ACTIVE_HIGH>; + output-high; + }; +}; + &i2c1 { clock-frequency = <100000>; pinctrl-names = "default"; @@ -131,6 +148,18 @@ }; }; +&pcie0 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pcie0>; + reset-gpio = <&gpio5 28 GPIO_ACTIVE_LOW>; + clocks = <&clk IMX8MQ_CLK_PCIE1_ROOT>, + <&clk IMX8MQ_CLK_PCIE1_AUX>, + <&clk IMX8MQ_CLK_PCIE1_PHY>, + <&pcie0_refclk>; + clock-names = "pcie", "pcie_aux", "pcie_phy", "pcie_bus"; + status = "okay"; +}; + &uart1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart1>; @@ -195,6 +224,13 @@ >; }; + pinctrl_pcie0: pcie0grp { + fsl,pins = < + MX8MQ_IOMUXC_I2C4_SCL_PCIE1_CLKREQ_B 0x76 + MX8MQ_IOMUXC_UART4_RXD_GPIO5_IO28 0x16 + >; + }; + pinctrl_reg_usdhc2: regusdhc2grpgpio { fsl,pins = < MX8MQ_IOMUXC_SD2_RESET_B_GPIO2_IO19 0x41 @@ -300,4 +336,10 @@ MX8MQ_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0xc6 >; }; + + pinctrl_wifi_reset: wifiresetgrp { + fsl,pins = < + MX8MQ_IOMUXC_UART4_TXD_GPIO5_IO29 0x16 + >; + }; };
Enable PCIE0 interface connected to BCM4356 WiFi/Bluetooth module. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Chris Healy <cphealy@gmail.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Leonard Crestez <leonard.crestez@nxp.com> Cc: "A.s. Dong" <aisheng.dong@nxp.com> Cc: Richard Zhu <hongxing.zhu@nxp.com> Cc: linux-imx@nxp.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 42 ++++++++++++++++++++ 1 file changed, 42 insertions(+)