[PATCH v1 22/23] board: nbxv3: enable GPIO controllers with line names and hogs

Label every pin via gpio-line-names so `gpio status` prints meaningful names.

Most pads on this module are alt function consumed (UART, IIC, SDHC,
XSPI, RGMII); those keep an "altfn:" prefixed name, not connected pins
"nc", and the lines with a real GPIO identity.

defconfig: CONFIG_MPC8XXX_GPIO ("fsl,qoriq-gpio" driver),
CONFIG_CMD_GPIO, and CONFIG_GPIO_HOG so the hogs can be applied.

Signed-off-by: Vincent Jardin <[email protected]>
---

 arch/arm/dts/fsl-lx2160a-nbxv3.dts | 161 +++++++++++++++++++++++++++++
 configs/nbxv3_tfa_defconfig        |   3 +
 2 files changed, 164 insertions(+)

diff --git a/arch/arm/dts/fsl-lx2160a-nbxv3.dts b/arch/arm/dts/fsl-lx2160a-nbxv3.dts
index d2e4cb53bf1..40b76cec333 100644
--- a/arch/arm/dts/fsl-lx2160a-nbxv3.dts
+++ b/arch/arm/dts/fsl-lx2160a-nbxv3.dts
@@ -368,3 +368,164 @@
 &wdt0 {
 	timeout-sec = <120>;
 };
+
+/* GPIO misc helper namings based on lx2160arm documentation */
+&gpio0 {
+	gpio-line-names =
+		"nc", "nc",
+		"altfn:iic1-scl",
+		"altfn:iic1-sda",
+		"altfn:uart4-sin",
+		"altfn:uart4-sout",
+		"altfn:uart2-sin",
+		"altfn:uart2-sout-cfg-rcw-src0",
+		"altfn:uart3-sin",
+		"altfn:uart3-sout",
+		"altfn:uart1-sin",
+		"altfn:uart1-sout-cfg-rcw-src1",
+		"altfn:spi3-pcs3",
+		"altfn:spi3-pcs2",
+		"altfn:spi3-pcs1",
+		"altfn:spi3-pcs0",
+		"altfn:spi1-sck",
+		"altfn:spi1-sin",
+		"altfn:spi1-pcs2",
+		"altfn:spi1-pcs1",
+		"altfn:spi1-pcs0-u1700-zl30733",
+		"altfn:spi1-sout",
+		"altfn:iic6-sda",
+		"altfn:iic6-scl",
+		"altfn:spi3-sin",
+		"altfn:spi3-sout",
+		"altfn:iic4-sda",
+		"altfn:iic4-scl",
+		"altfn:iic3-sda",
+		"altfn:iic3-scl",
+		"altfn:iic2-sda",
+		"altfn:iic2-scl";
+};
+
+&gpio1 {
+	gpio-line-names =
+		"nc", "nc", "nc", "nc", "nc", "nc",
+		"cfg-rcw-src2",
+		"cfg-rcw-src3",
+		"reset-req-b",
+		"altfn:sdhc2-clk-u700-emmc",
+		"altfn:sdhc2-ds-u700-emmc",
+		"altfn:sdhc2-dat0-u700-emmc",
+		"altfn:sdhc2-dat1-u700-emmc",
+		"altfn:sdhc2-dat2-u700-emmc",
+		"altfn:sdhc2-dat3-u700-emmc",
+		"altfn:sdhc2-dat4-u700-emmc",
+		"altfn:sdhc2-dat5-u700-emmc",
+		"altfn:sdhc2-dat6-u700-emmc",
+		"altfn:sdhc2-dat7-u700-emmc",
+		"altfn:sdhc2-cmd-u700-emmc",
+		"cfg-svr1",
+		"altfn:xspi1-cs0-u1000-u1100-gd55lb02gf",
+		"altfn:xspi1-sck-cfg-eng-use0",
+		"thermtrip",
+		"altfn:xspi1-data0-mosi",
+		"altfn:xspi1-data1-miso",
+		"nc",
+		"nc",
+		"u1000-u1100-gd55lb02gf-reset#",
+		"pltrst#",
+		"nc",
+		"ethsw-reset#";
+
+	pltrst-hog {
+		gpio-hog;
+		gpios = <29 1>;
+		output-low;
+		line-name = "pltrst-deassert";
+	};
+
+	thermtrip-hog {
+		gpio-hog;
+		gpios = <23 0>;
+		output-low;
+		line-name = "thermtrip-deassert";
+	};
+
+	flash-reset-hog {
+		gpio-hog;
+		gpios = <28 1>;
+		output-low;
+		line-name = "flash-reset-deassert";
+	};
+
+	ethsw-reset-hog {
+		gpio-hog;
+		gpios = <31 0>;
+		output-high;
+		line-name = "ethsw-reset-deassert";
+	};
+};
+
+&gpio2 {
+	gpio-line-names =
+		"irq00#",
+		"i2c2-alert#",
+		"i2c4-alert#",
+		"i2c6-alert#",
+		"u800-tca9539-int#",
+		"spi3-alert#",
+		"wake0",
+		"wake1",
+		"carrier-hot#",
+		"u1300-rtl8211fd-int#",
+		"ethsw-int#",
+		"nc",
+		"nc",
+		"u1700-zl30733-clk-gpio0",
+		"u1700-zl30733-clk-gpio1",
+		"u1700-zl30733-clk-gpio2",
+		"u1700-zl30733-clk-gpio3",
+		"nc", "nc", "nc", "nc", "nc", "nc", "nc", "nc",
+		"nc", "nc", "nc", "nc", "nc", "nc", "nc";
+};
+
+&gpio3 {
+	gpio-line-names =
+		"altfn:ec1-txd3-rgmii1",
+		"altfn:ec1-txd2-rgmii1",
+		"altfn:ec1-txd1-rgmii1",
+		"altfn:ec1-txd0-rgmii1",
+		"altfn:ec1-tx-en-rgmii1",
+		"altfn:ec1-gtx-clk-rgmii1",
+		"altfn:ec1-rxd3-rgmii1",
+		"altfn:ec1-rxd2-rgmii1",
+		"altfn:ec1-rxd1-rgmii1",
+		"altfn:ec1-rxd0-rgmii1",
+		"altfn:ec1-rx-clk-rgmii1",
+		"altfn:ec1-rx-dv-rgmii1",
+		"nc",
+		"nc",
+		"ptp-refclk-in",
+		"nc",
+		"nc",
+		"nc",
+		"nc",
+		"nc",
+		"nc",
+		"nc",
+		"nc",
+		"u1700-zl30733-pps-out",
+		"nc",
+		"ethsw-mdio-en",
+		"usb01-oc#",
+		"nc",
+		"usb01-oc#",
+		"altfn:spi3-sck",
+		"nc",
+		"nc";
+
+	ethsw-mdio-en-hog {
+		gpio-hog;
+		gpios = <25 0>;
+		output-low;
+		line-name = "ethsw-mdio-en";
+	};
+};
diff --git a/configs/nbxv3_tfa_defconfig b/configs/nbxv3_tfa_defconfig
index 040353c4a03..a4c8419f0c3 100644
--- a/configs/nbxv3_tfa_defconfig
+++ b/configs/nbxv3_tfa_defconfig
@@ -40,6 +40,7 @@ CONFIG_SYS_I2C_EEPROM_ADDR_LEN=2
 CONFIG_SYS_EEPROM_PAGE_WRITE_BITS=5
 CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS=5
 CONFIG_CMD_DM=y
+CONFIG_CMD_GPIO=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_PCI=y
@@ -58,7 +59,9 @@ CONFIG_DYNAMIC_DDR_CLK_FREQ=y
 CONFIG_DDR_ECC=y
 CONFIG_ECC_INIT_VIA_DDRCONTROLLER=y
 CONFIG_SYS_FSL_DDR_INTLV_256B=y
+CONFIG_GPIO_HOG=y
 CONFIG_DM_PCA953X=y
+CONFIG_MPC8XXX_GPIO=y
 CONFIG_DM_I2C=y
 CONFIG_I2C_SET_DEFAULT_BUS_NUM=y
 CONFIG_I2C_MUX=y
-- 
2.43.0