Add gpio hog support for board-specific gpio lines: - put hogs in u-boot.dtsi so as to keep the regular dts files in sync with the kernel. The hogs will not be put in the kernel as that makes them un-usable by userspace as well as re-initializes them to dt defaults overriding changes which may have been done by bootloader commands. - specify gpio names and initial config - enable GPIO_HOG

Signed-off-by: Tim Harvey tharvey@gateworks.com Acked-by: Peng Fan peng.fan@nxp.com --- v2: - rebase on imx/master - add Peng's ack tag --- .../dts/imx8mm-venice-gw71xx-0x-u-boot.dtsi | 46 ++++++ .../dts/imx8mm-venice-gw72xx-0x-u-boot.dtsi | 81 ++++++++++ .../dts/imx8mm-venice-gw73xx-0x-u-boot.dtsi | 81 ++++++++++ arch/arm/dts/imx8mm-venice-gw7901-u-boot.dtsi | 118 ++++++++++++++ arch/arm/dts/imx8mm-venice-gw7902-u-boot.dtsi | 150 ++++++++++++++++++ arch/arm/dts/imx8mm-venice-gw7903-u-boot.dtsi | 83 ++++++++++ arch/arm/dts/imx8mn-venice-gw7902-u-boot.dtsi | 108 +++++++++++++ configs/imx8mm_venice_defconfig | 1 + configs/imx8mn_venice_defconfig | 1 + 9 files changed, 669 insertions(+)

diff --git a/arch/arm/dts/imx8mm-venice-gw71xx-0x-u-boot.dtsi b/arch/arm/dts/imx8mm-venice-gw71xx-0x-u-boot.dtsi index f5d52c2fe259..b3592331c72b 100644 --- a/arch/arm/dts/imx8mm-venice-gw71xx-0x-u-boot.dtsi +++ b/arch/arm/dts/imx8mm-venice-gw71xx-0x-u-boot.dtsi @@ -3,3 +3,49 @@ * Copyright 2021 Gateworks Corporation */ #include "imx8mm-venice-gw700x-u-boot.dtsi" + +&gpio1 { + pci_usb_sel { + gpio-hog; + output-low; + gpios = <6 GPIO_ACTIVE_HIGH>; + line-name = "pci_usb_sel"; + }; + + dio_0 { + gpio-hog; + input; + gpios = <7 GPIO_ACTIVE_HIGH>; + line-name = "dio0"; + }; + + dio_1 { + gpio-hog; + input; + gpios = <9 GPIO_ACTIVE_HIGH>; + line-name = "dio1"; + }; +}; + +&gpio4 { + dio_2 { + gpio-hog; + input; + gpios = <3 GPIO_ACTIVE_HIGH>; + line-name = "dio2"; + }; + + dio_3 { + gpio-hog; + input; + gpios = <4 GPIO_ACTIVE_HIGH>; + line-name = "dio3"; + }; + + pci_wdis { + gpio-hog; + output-high; + gpios = <7 GPIO_ACTIVE_HIGH>; + line-name = "pci_wdis#"; + }; +}; diff --git a/arch/arm/dts/imx8mm-venice-gw72xx-0x-u-boot.dtsi b/arch/arm/dts/imx8mm-venice-gw72xx-0x-u-boot.dtsi index f5d52c2fe259..92e44d4ba96b 100644 --- a/arch/arm/dts/imx8mm-venice-gw72xx-0x-u-boot.dtsi +++ b/arch/arm/dts/imx8mm-venice-gw72xx-0x-u-boot.dtsi @@ -3,3 +3,84 @@ * Copyright 2021 Gateworks Corporation */ #include "imx8mm-venice-gw700x-u-boot.dtsi" + +&gpio1 { + rs485_term { + gpio-hog; + output-low; + gpios = <0 GPIO_ACTIVE_HIGH>; + line-name = "rs485_term"; + }; + + mipi_gpio4 { + gpio-hog; + input; + gpios = <1 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio4"; + }; + + pci_usb_sel { + gpio-hog; + output-low; + gpios = <6 GPIO_ACTIVE_HIGH>; + line-name = "pci_usb_sel"; + }; + + dio_0 { + gpio-hog; + input; + gpios = <7 GPIO_ACTIVE_HIGH>; + line-name = "dio0"; + }; + + dio_1 { + gpio-hog; + input; + gpios = <9 GPIO_ACTIVE_HIGH>; + line-name = "dio1"; + }; +}; + +&gpio4 { + rs485_en { + gpio-hog; + output-low; + gpios = <0 GPIO_ACTIVE_HIGH>; + line-name = "rs485_en"; + }; + + mipi_gpio3 { + gpio-hog; + input; + gpios = <1 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio3"; + }; + + rs485_half { + gpio-hog; + output-low; + gpios = <2 GPIO_ACTIVE_HIGH>; + line-name = "rs485_hd"; + }; + + mipi_gpio2 { + gpio-hog; + input; + gpios = <3 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio2"; + }; + + mipi_gpio1 { + gpio-hog; + input; + gpios = <4 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio1"; + }; + + pci_wdis { + gpio-hog; + output-high; + gpios = <7 GPIO_ACTIVE_HIGH>; + line-name = "pci_wdis#"; + }; +}; diff --git a/arch/arm/dts/imx8mm-venice-gw73xx-0x-u-boot.dtsi b/arch/arm/dts/imx8mm-venice-gw73xx-0x-u-boot.dtsi index f5d52c2fe259..92e44d4ba96b 100644 --- a/arch/arm/dts/imx8mm-venice-gw73xx-0x-u-boot.dtsi +++ b/arch/arm/dts/imx8mm-venice-gw73xx-0x-u-boot.dtsi @@ -3,3 +3,84 @@ * Copyright 2021 Gateworks Corporation */ #include "imx8mm-venice-gw700x-u-boot.dtsi" + +&gpio1 { + rs485_term { + gpio-hog; + output-low; + gpios = <0 GPIO_ACTIVE_HIGH>; + line-name = "rs485_term"; + }; + + mipi_gpio4 { + gpio-hog; + input; + gpios = <1 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio4"; + }; + + pci_usb_sel { + gpio-hog; + output-low; + gpios = <6 GPIO_ACTIVE_HIGH>; + line-name = "pci_usb_sel"; + }; + + dio_0 { + gpio-hog; + input; + gpios = <7 GPIO_ACTIVE_HIGH>; + line-name = "dio0"; + }; + + dio_1 { + gpio-hog; + input; + gpios = <9 GPIO_ACTIVE_HIGH>; + line-name = "dio1"; + }; +}; + +&gpio4 { + rs485_en { + gpio-hog; + output-low; + gpios = <0 GPIO_ACTIVE_HIGH>; + line-name = "rs485_en"; + }; + + mipi_gpio3 { + gpio-hog; + input; + gpios = <1 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio3"; + }; + + rs485_half { + gpio-hog; + output-low; + gpios = <2 GPIO_ACTIVE_HIGH>; + line-name = "rs485_hd"; + }; + + mipi_gpio2 { + gpio-hog; + input; + gpios = <3 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio2"; + }; + + mipi_gpio1 { + gpio-hog; + input; + gpios = <4 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio1"; + }; + + pci_wdis { + gpio-hog; + output-high; + gpios = <7 GPIO_ACTIVE_HIGH>; + line-name = "pci_wdis#"; + }; +}; diff --git a/arch/arm/dts/imx8mm-venice-gw7901-u-boot.dtsi b/arch/arm/dts/imx8mm-venice-gw7901-u-boot.dtsi index a801ee1deb93..11c773bb70d6 100644 --- a/arch/arm/dts/imx8mm-venice-gw7901-u-boot.dtsi +++ b/arch/arm/dts/imx8mm-venice-gw7901-u-boot.dtsi @@ -5,6 +5,124 @@

#include "imx8mm-venice-u-boot.dtsi"

+&gpio1 { + uart1_rs422 { + gpio-hog; + output-high; + gpios = <0 GPIO_ACTIVE_HIGH>; + line-name = "uart1_rs422#"; + }; + + uart1rs485 { + gpio-hog; + output-high; + gpios = <3 GPIO_ACTIVE_HIGH>; + line-name = "uart1_rs485#"; + }; + + uart1rs232 { + gpio-hog; + output-high; + gpios = <5 GPIO_ACTIVE_HIGH>; + line-name = "uart1_rs232#"; + }; + + dig1in { + gpio-hog; + input; + gpios = <6 GPIO_ACTIVE_HIGH>; + line-name = "dig1_in"; + }; + + dig1out { + gpio-hog; + output-low; + gpios = <7 GPIO_ACTIVE_HIGH>; + line-name = "dig1_out"; + }; +}; + +&gpio4 { + uart3_rs232 { + gpio-hog; + output-high; + gpios = <6 GPIO_ACTIVE_HIGH>; + line-name = "uart3_rs232#"; + }; + + uart3_rs422 { + gpio-hog; + output-high; + gpios = <7 GPIO_ACTIVE_HIGH>; + line-name = "uart3_rs422#"; + }; + + uart3_rs485 { + gpio-hog; + output-high; + gpios = <8 GPIO_ACTIVE_HIGH>; + line-name = "uart3_rs485#"; + }; + + uart4_rs485 { + gpio-hog; + output-high; + gpios = <27 GPIO_ACTIVE_HIGH>; + line-name = "uart4_rs485#"; + }; + + sim1det { + gpio-hog; + input; + gpios = <29 GPIO_ACTIVE_HIGH>; + line-name = "sim1_det"; + }; + + sim2det { + gpio-hog; + input; + gpios = <30 GPIO_ACTIVE_HIGH>; + line-name = "sim2_det"; + }; +}; + +&gpio5 { + dig2out { + gpio-hog; + output-low; + gpios = <3 GPIO_ACTIVE_HIGH>; + line-name = "dig2_out"; + }; + + dig2in { + gpio-hog; + input; + gpios = <4 GPIO_ACTIVE_HIGH>; + line-name = "dig2_in"; + }; + + sim2sel { + gpio-hog; + output-low; + gpios = <5 GPIO_ACTIVE_HIGH>; + line-name = "sim2_sel"; + }; + + uart4_rs232 { + gpio-hog; + output-high; + gpios = <10 GPIO_ACTIVE_HIGH>; + line-name = "uart4_rs232#"; + }; + + uart4_rs422 { + gpio-hog; + output-high; + gpios = <13 GPIO_ACTIVE_HIGH>; + line-name = "uart4_rs422#"; + }; +}; + &fec1 { phy-reset-gpios = <&gpio4 19 GPIO_ACTIVE_LOW>; phy-reset-duration = <1>; diff --git a/arch/arm/dts/imx8mm-venice-gw7902-u-boot.dtsi b/arch/arm/dts/imx8mm-venice-gw7902-u-boot.dtsi index d0e5d6c5b634..1e1769f55127 100644 --- a/arch/arm/dts/imx8mm-venice-gw7902-u-boot.dtsi +++ b/arch/arm/dts/imx8mm-venice-gw7902-u-boot.dtsi @@ -5,6 +5,156 @@

#include "imx8mm-venice-u-boot.dtsi"

+&gpio1 { + m2rst { + gpio-hog; + output-low; + gpios = <13 GPIO_ACTIVE_HIGH>; + line-name = "m2_reset"; + }; + + m2wdis { + gpio-hog; + output-high; + gpios = <15 GPIO_ACTIVE_HIGH>; + line-name = "m2_wdis#"; + }; +}; + +&gpio2 { + uart2en { + gpio-hog; + output-high; + gpios = <8 GPIO_ACTIVE_HIGH>; + line-name = "uart2_en#"; + }; +}; + +&gpio3 { + m2gdis { + gpio-hog; + output-high; + gpios = <1 GPIO_ACTIVE_HIGH>; + line-name = "m2_gdis#"; + }; + + m2off { + gpio-hog; + output-high; + gpios = <7 GPIO_ACTIVE_HIGH>; + line-name = "m2_off#"; + }; +}; + +&gpio4 { + ampgpio3 { + gpio-hog; + input; + gpios = <11 GPIO_ACTIVE_HIGH>; + line-name = "amp_gpio3"; + }; + + ampgpio2 { + gpio-hog; + input; + gpios = <12 GPIO_ACTIVE_HIGH>; + line-name = "amp_gpio2"; + }; + + ampgpio1 { + gpio-hog; + input; + gpios = <14 GPIO_ACTIVE_HIGH>; + line-name = "amp_gpio1"; + }; + + ltrpwr { + gpio-hog; + output-low; + gpios = <16 GPIO_ACTIVE_HIGH>; + line-name = "lte_pwr#"; + }; + + lterst { + gpio-hog; + output-low; + gpios = <17 GPIO_ACTIVE_HIGH>; + line-name = "lte_rst"; + }; + + ampgpio4 { + gpio-hog; + input; + gpios = <20 GPIO_ACTIVE_HIGH>; + line-name = "amp_gpio4"; + }; + + appgpio1 { + gpio-hog; + input; + gpios = <21 GPIO_ACTIVE_HIGH>; + line-name = "app_gpio1"; + }; + + uart1rs485 { + gpio-hog; + output-low; + gpios = <23 GPIO_ACTIVE_HIGH>; + line-name = "uart1_rs485"; + }; + + uart1term { + gpio-hog; + output-low; + gpios = <25 GPIO_ACTIVE_HIGH>; + line-name = "uart1_term"; + }; + + uart1half { + gpio-hog; + output-low; + gpios = <26 GPIO_ACTIVE_HIGH>; + line-name = "uart1_half"; + }; + + appgpio2 { + gpio-hog; + input; + gpios = <27 GPIO_ACTIVE_HIGH>; + line-name = "app_gpio2"; + }; + + mipigpio1 { + gpio-hog; + input; + gpios = <28 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio1"; + }; +}; + +&gpio5 { + mipigpio4 { + gpio-hog; + input; + gpios = <3 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio4"; + }; + + mipigpio3 { + gpio-hog; + input; + gpios = <4 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio3"; + }; + + mipigpio2 { + gpio-hog; + input; + gpios = <5 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio2"; + }; +}; + &fec1 { phy-reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>; phy-reset-duration = <1>; diff --git a/arch/arm/dts/imx8mm-venice-gw7903-u-boot.dtsi b/arch/arm/dts/imx8mm-venice-gw7903-u-boot.dtsi index 36a605468b22..896e5d4edde3 100644 --- a/arch/arm/dts/imx8mm-venice-gw7903-u-boot.dtsi +++ b/arch/arm/dts/imx8mm-venice-gw7903-u-boot.dtsi @@ -5,6 +5,89 @@

#include "imx8mm-venice-u-boot.dtsi"

+&gpio1 { + rs422en { + gpio-hog; + output-high; + gpios = <10 GPIO_ACTIVE_HIGH>; + line-name = "rs422_en#"; + }; + + rs485en { + gpio-hog; + output-high; + gpios = <11 GPIO_ACTIVE_HIGH>; + line-name = "rs485_en#"; + }; + + rs232en { + gpio-hog; + output-low; + gpios = <12 GPIO_ACTIVE_HIGH>; + line-name = "rs232_en#"; + }; +}; + +&gpio2 { + dig2in { + gpio-hog; + input; + gpios = <0 GPIO_ACTIVE_HIGH>; + line-name = "dig2_in"; + }; + + dig2out { + gpio-hog; + output-high; + gpios = <1 GPIO_ACTIVE_HIGH>; + line-name = "dig2_out#"; + }; + + dig1out { + gpio-hog; + output-high; + gpios = <8 GPIO_ACTIVE_HIGH>; + line-name = "dig1_out#"; + }; + + dig1in { + gpio-hog; + input; + gpios = <9 GPIO_ACTIVE_HIGH>; + line-name = "dig1_in"; + }; +}; + +&gpio5 { + sim1det { + gpio-hog; + input; + gpios = <7 GPIO_ACTIVE_LOW>; + line-name = "sim1_det#"; + }; + + sim2det { + gpio-hog; + input; + gpios = <8 GPIO_ACTIVE_LOW>; + line-name = "sim2_det#"; + }; + + sim2sel { + gpio-hog; + output-low; + gpios = <9 GPIO_ACTIVE_HIGH>; + line-name = "sim2_sel"; + }; + + pci_wdis { + gpio-hog; + output-high; + gpios = <12 GPIO_ACTIVE_HIGH>; + line-name = "pci_wdis#"; + }; +}; + &fec1 { phy-reset-gpios = <&gpio4 25 GPIO_ACTIVE_LOW>; phy-reset-duration = <1>; diff --git a/arch/arm/dts/imx8mn-venice-gw7902-u-boot.dtsi b/arch/arm/dts/imx8mn-venice-gw7902-u-boot.dtsi index b334b56b82a1..9431e2a6cde7 100644 --- a/arch/arm/dts/imx8mn-venice-gw7902-u-boot.dtsi +++ b/arch/arm/dts/imx8mn-venice-gw7902-u-boot.dtsi @@ -5,6 +5,114 @@

#include "imx8mn-venice-u-boot.dtsi"

+&gpio1 { + m2rst { + gpio-hog; + output-low; + gpios = <13 GPIO_ACTIVE_HIGH>; + line-name = "m2_reset"; + }; + + m2wdis { + gpio-hog; + output-high; + gpios = <15 GPIO_ACTIVE_HIGH>; + line-name = "m2_wdis#"; + }; +}; + +&gpio2 { + uart2en { + gpio-hog; + output-high; + gpios = <8 GPIO_ACTIVE_HIGH>; + line-name = "uart2_en#"; + }; +}; + +&gpio3 { + m2gdis { + gpio-hog; + output-high; + gpios = <1 GPIO_ACTIVE_HIGH>; + line-name = "m2_gdis#"; + }; + + m2off { + gpio-hog; + output-high; + gpios = <7 GPIO_ACTIVE_HIGH>; + line-name = "m2_off#"; + }; +}; + +&gpio4 { + appgpio1 { + gpio-hog; + input; + gpios = <21 GPIO_ACTIVE_HIGH>; + line-name = "app_gpio1"; + }; + + uart1rs485 { + gpio-hog; + output-low; + gpios = <23 GPIO_ACTIVE_HIGH>; + line-name = "uart1_rs485"; + }; + + uart1term { + gpio-hog; + output-low; + gpios = <25 GPIO_ACTIVE_HIGH>; + line-name = "uart1_term"; + }; + + uart1half { + gpio-hog; + output-low; + gpios = <26 GPIO_ACTIVE_HIGH>; + line-name = "uart1_half"; + }; + + appgpio2 { + gpio-hog; + input; + gpios = <27 GPIO_ACTIVE_HIGH>; + line-name = "app_gpio2"; + }; + + mipigpio1 { + gpio-hog; + input; + gpios = <28 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio1"; + }; +}; + +&gpio5 { + mipigpio4 { + gpio-hog; + input; + gpios = <3 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio4"; + }; + + mipigpio3 { + gpio-hog; + input; + gpios = <4 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio3"; + }; + + mipigpio2 { + gpio-hog; + input; + gpios = <5 GPIO_ACTIVE_HIGH>; + line-name = "mipi_gpio2"; + }; +}; + &fec1 { phy-reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>; phy-reset-duration = <1>; diff --git a/configs/imx8mm_venice_defconfig b/configs/imx8mm_venice_defconfig index 09f7d8a58ca7..b596f7eb669f 100644 --- a/configs/imx8mm_venice_defconfig +++ b/configs/imx8mm_venice_defconfig @@ -73,6 +73,7 @@ CONFIG_SPL_CLK_COMPOSITE_CCF=y CONFIG_CLK_COMPOSITE_CCF=y CONFIG_SPL_CLK_IMX8MM=y CONFIG_CLK_IMX8MM=y +CONFIG_GPIO_HOG=y CONFIG_MXC_GPIO=y CONFIG_DM_I2C=y CONFIG_LED=y diff --git a/configs/imx8mn_venice_defconfig b/configs/imx8mn_venice_defconfig index afb9c5c894f4..2f5ea62f5427 100644 --- a/configs/imx8mn_venice_defconfig +++ b/configs/imx8mn_venice_defconfig @@ -72,6 +72,7 @@ CONFIG_TFTP_BLOCKSIZE=4096 CONFIG_SPL_DM=y CONFIG_SPL_CLK_IMX8MN=y CONFIG_CLK_IMX8MN=y +CONFIG_GPIO_HOG=y CONFIG_MXC_GPIO=y CONFIG_DM_I2C=y CONFIG_LED=y