From b11c808072fbd21808adae0685ff91d15a16e033 Mon Sep 17 00:00:00 2001 From: Francesco Dolcini Date: Tue, 26 Mar 2024 18:55:44 +0100 Subject: arm64: dts: ti: k3-am625-verdin: add PCIe reset gpio hog Add a GPIO hog to release PCIe reset on the carrier board, this is required to use M.2 or mPCIe cards. Verdin AM62 does not have any PCIe interface, however the Verdin family has PCIe and normally an M.2 or mPCIe slot is available in the carrier board that can be used with cards that use only the USB interface toward the host CPU, for example cellular network modem. Upstream-Status: Submitted [https://lore.kernel.org/all/20240327182801.5997-3-francesco@dolcini.it/] Signed-off-by: Francesco Dolcini --- arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi | 8 +++++++- arch/arm64/boot/dts/ti/k3-am62-verdin-dev.dtsi | 8 +++++++- arch/arm64/boot/dts/ti/k3-am62-verdin-mallow.dtsi | 8 +++++++- arch/arm64/boot/dts/ti/k3-am62-verdin-yavia.dtsi | 8 +++++++- arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | 9 +++++++++ 5 files changed, 37 insertions(+), 4 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi index 2b12a626d0e4..f768987cc2d3 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi @@ -160,7 +160,8 @@ pinctrl-0 = <&pinctrl_gpio_1>, <&pinctrl_gpio_2>, <&pinctrl_gpio_3>, - <&pinctrl_gpio_4>; + <&pinctrl_gpio_4>, + <&pinctrl_pcie_1_reset>; }; /* Verdin I2C_3_HDMI */ @@ -212,6 +213,11 @@ status = "okay"; }; +/* Verdin PCIE_1_RESET# */ +&verdin_pcie_1_reset_hog { + status = "okay"; +}; + /* Verdin UART_2 */ &wkup_uart0 { status = "okay"; diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin-dev.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin-dev.dtsi index 680071688dcb..7b0245d32ffe 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-verdin-dev.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin-dev.dtsi @@ -181,7 +181,8 @@ pinctrl-0 = <&pinctrl_gpio_1>, <&pinctrl_gpio_2>, <&pinctrl_gpio_3>, - <&pinctrl_gpio_4>; + <&pinctrl_gpio_4>, + <&pinctrl_pcie_1_reset>; }; /* Verdin I2C_3_HDMI */ @@ -233,6 +234,11 @@ status = "okay"; }; +/* Verdin PCIE_1_RESET# */ +&verdin_pcie_1_reset_hog { + status = "okay"; +}; + /* Verdin UART_2 */ &wkup_uart0 { status = "okay"; diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin-mallow.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin-mallow.dtsi index cd81a606c435..754216d8ac14 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-verdin-mallow.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin-mallow.dtsi @@ -154,7 +154,8 @@ pinctrl-0 = <&pinctrl_gpio_1>, <&pinctrl_gpio_2>, <&pinctrl_gpio_3>, - <&pinctrl_gpio_4>; + <&pinctrl_gpio_4>, + <&pinctrl_pcie_1_reset>; }; /* Verdin I2C_3_HDMI */ @@ -200,6 +201,11 @@ status = "okay"; }; +/* Verdin PCIE_1_RESET# */ +&verdin_pcie_1_reset_hog { + status = "okay"; +}; + /* Verdin UART_2 */ &wkup_uart0 { status = "okay"; diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin-yavia.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin-yavia.dtsi index 997dfafd27eb..7372d392ec8a 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-verdin-yavia.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin-yavia.dtsi @@ -159,7 +159,8 @@ pinctrl-0 = <&pinctrl_gpio_1>, <&pinctrl_gpio_2>, <&pinctrl_gpio_3>, - <&pinctrl_gpio_4>; + <&pinctrl_gpio_4>, + <&pinctrl_pcie_1_reset>; }; /* Verdin I2C_3_HDMI */ @@ -205,6 +206,11 @@ status = "okay"; }; +/* Verdin PCIE_1_RESET# */ +&verdin_pcie_1_reset_hog { + status = "okay"; +}; + /* Verdin UART_2 */ &wkup_uart0 { status = "okay"; diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi index 519d4193a3d3..fecadaaa4a39 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi @@ -1412,6 +1412,15 @@ "", "", ""; + + verdin_pcie_1_reset_hog: pcie-1-reset-hog { + gpio-hog; + /* Verdin PCIE_1_RESET# (SODIMM 244) */ + gpios = <0 GPIO_ACTIVE_LOW>; + line-name = "PCIE_1_RESET#"; + output-low; + status = "disabled"; + }; }; /* Verdin CAN_2 */ -- cgit v1.2.3