--- /dev/null
+/*
+ * Copyright 2014 Gateworks Corporation
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/ {
+ /* these are used by bootloader for disabling nodes */
+ aliases {
+ led0 = &led0;
+ led1 = &led1;
+ led2 = &led2;
+ nand = &gpmi;
+ usb0 = &usbh1;
+ };
+
+ chosen {
+ bootargs = "console=ttymxc1,115200";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led0: user1 {
+ label = "user1";
+ gpios = <&gpio4 6 0>; /* 102 -> MX6_PANLEDG */
+ default-state = "on";
+ linux,default-trigger = "heartbeat";
+ };
+
+ led1: user2 {
+ label = "user2";
+ gpios = <&gpio4 7 0>; /* 103 -> MX6_PANLEDR */
+ default-state = "off";
+ };
+
+ led2: user3 {
+ label = "user3";
+ gpios = <&gpio4 15 1>; /* 111 - MX6_LOCLED# */
+ default-state = "off";
+ };
+ };
+
+ memory {
+ reg = <0x10000000 0x20000000>;
+ };
+
+ regulators {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ reg_1p0v: regulator@0 {
+ compatible = "regulator-fixed";
+ reg = <0>;
+ regulator-name = "1P0V";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1000000>;
+ regulator-always-on;
+ };
+
+ reg_3p3v: regulator@2 {
+ compatible = "regulator-fixed";
+ reg = <2>;
+ regulator-name = "3P3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ reg_5p0v: regulator@3 {
+ compatible = "regulator-fixed";
+ reg = <3>;
+ regulator-name = "5P0V";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ };
+ };
+};
+
+&gpmi {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpmi_nand>;
+ status = "okay";
+};
+
+&i2c1 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c1>;
+ status = "okay";
+
+ eeprom1: eeprom@50 {
+ compatible = "atmel,24c02";
+ reg = <0x50>;
+ pagesize = <16>;
+ };
+
+ eeprom2: eeprom@51 {
+ compatible = "atmel,24c02";
+ reg = <0x51>;
+ pagesize = <16>;
+ };
+
+ eeprom3: eeprom@52 {
+ compatible = "atmel,24c02";
+ reg = <0x52>;
+ pagesize = <16>;
+ };
+
+ eeprom4: eeprom@53 {
+ compatible = "atmel,24c02";
+ reg = <0x53>;
+ pagesize = <16>;
+ };
+
+ gpio: pca9555@23 {
+ compatible = "nxp,pca9555";
+ reg = <0x23>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ hwmon: gsc@29 {
+ compatible = "gw,gsp";
+ reg = <0x29>;
+ };
+
+ rtc: ds1672@68 {
+ compatible = "dallas,ds1672";
+ reg = <0x68>;
+ };
+};
+
+&i2c2 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c2>;
+ status = "okay";
+
+ pciswitch: pex8609@3f {
+ compatible = "plx,pex8609";
+ reg = <0x3f>;
+ };
+
+ pmic: ltc3676@3c {
+ compatible = "ltc,ltc3676";
+ reg = <0x3c>;
+
+ regulators {
+ sw1_reg: ltc3676__sw1 {
+ regulator-min-microvolt = <1175000>;
+ regulator-max-microvolt = <1175000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ sw2_reg: ltc3676__sw2 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ sw3_reg: ltc3676__sw3 {
+ regulator-min-microvolt = <1175000>;
+ regulator-max-microvolt = <1175000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ sw4_reg: ltc3676__sw4 {
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo2_reg: ltc3676__ldo2 {
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <2500000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo4_reg: ltc3676__ldo4 {
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ };
+ };
+ };
+};
+
+&i2c3 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c3>;
+ status = "okay";
+};
+
+&iomuxc {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_hog>;
+
+ imx6qdl-gw52xx {
+ pinctrl_hog: hoggrp {
+ fsl,pins = <
+ MX6QDL_PAD_ENET_TXD1__GPIO1_IO29 0x80000000 /* PCIE_RST# */
+ MX6QDL_PAD_GPIO_9__GPIO1_IO09 0x80000000 /* USBHUB_RST# */
+ MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x80000000 /* PCIESKT_WDIS# */
+ MX6QDL_PAD_KEY_COL0__GPIO4_IO06 0x80000000 /* user1 led */
+ MX6QDL_PAD_KEY_ROW0__GPIO4_IO07 0x80000000 /* user2 led */
+ MX6QDL_PAD_KEY_ROW4__GPIO4_IO15 0x80000000 /* user3 led */
+ >;
+ };
+
+ pinctrl_gpmi_nand: gpminandgrp {
+ fsl,pins = <
+ MX6QDL_PAD_NANDF_CLE__NAND_CLE 0xb0b1
+ MX6QDL_PAD_NANDF_ALE__NAND_ALE 0xb0b1
+ MX6QDL_PAD_NANDF_WP_B__NAND_WP_B 0xb0b1
+ MX6QDL_PAD_NANDF_RB0__NAND_READY_B 0xb000
+ MX6QDL_PAD_NANDF_CS0__NAND_CE0_B 0xb0b1
+ MX6QDL_PAD_NANDF_CS1__NAND_CE1_B 0xb0b1
+ MX6QDL_PAD_SD4_CMD__NAND_RE_B 0xb0b1
+ MX6QDL_PAD_SD4_CLK__NAND_WE_B 0xb0b1
+ MX6QDL_PAD_NANDF_D0__NAND_DATA00 0xb0b1
+ MX6QDL_PAD_NANDF_D1__NAND_DATA01 0xb0b1
+ MX6QDL_PAD_NANDF_D2__NAND_DATA02 0xb0b1
+ MX6QDL_PAD_NANDF_D3__NAND_DATA03 0xb0b1
+ MX6QDL_PAD_NANDF_D4__NAND_DATA04 0xb0b1
+ MX6QDL_PAD_NANDF_D5__NAND_DATA05 0xb0b1
+ MX6QDL_PAD_NANDF_D6__NAND_DATA06 0xb0b1
+ MX6QDL_PAD_NANDF_D7__NAND_DATA07 0xb0b1
+ >;
+ };
+
+ pinctrl_i2c1: i2c1grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D21__I2C1_SCL 0x4001b8b1
+ MX6QDL_PAD_EIM_D28__I2C1_SDA 0x4001b8b1
+ >;
+ };
+
+ pinctrl_i2c2: i2c2grp {
+ fsl,pins = <
+ MX6QDL_PAD_KEY_COL3__I2C2_SCL 0x4001b8b1
+ MX6QDL_PAD_KEY_ROW3__I2C2_SDA 0x4001b8b1
+ >;
+ };
+
+ pinctrl_i2c3: i2c3grp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_3__I2C3_SCL 0x4001b8b1
+ MX6QDL_PAD_GPIO_6__I2C3_SDA 0x4001b8b1
+ >;
+ };
+
+ pinctrl_uart2: uart2grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD4_DAT7__UART2_TX_DATA 0x1b0b1
+ MX6QDL_PAD_SD4_DAT4__UART2_RX_DATA 0x1b0b1
+ >;
+ };
+
+ pinctrl_uart3: uart3grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D24__UART3_TX_DATA 0x1b0b1
+ MX6QDL_PAD_EIM_D25__UART3_RX_DATA 0x1b0b1
+ >;
+ };
+
+ pinctrl_uart5: uart5grp {
+ fsl,pins = <
+ MX6QDL_PAD_KEY_COL1__UART5_TX_DATA 0x1b0b1
+ MX6QDL_PAD_KEY_ROW1__UART5_RX_DATA 0x1b0b1
+ >;
+ };
+ };
+};
+
+&pcie {
+ reset-gpio = <&gpio1 29 0>;
+ status = "okay";
+};
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
+ status = "okay";
+};
+
+&uart3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart3>;
+ status = "okay";
+};
+
+&uart5 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart5>;
+ status = "okay";
+};
+
+&usbh1 {
+ status = "okay";
+};
--- /dev/null
+This patch allows passing in the gpio output mask used for GPIO0-7 on the
+PLX PCIe bridge. These GPIO's are used for PERST# on the downstream ports.
+
+Allowing the kernel to override the default configuration allows for keeping
+specific devices held in reset. One important use of this is to allow
+temporarily disabling devices that may request too many resources such as
+an unprogrammed i210 device.
+
+--- a/arch/arm/mach-imx/mach-imx6q.c
++++ b/arch/arm/mach-imx/mach-imx6q.c
+@@ -84,6 +84,7 @@ static int ksz9031rn_phy_fixup(struct ph
+ * fixup for PLX PEX8909 bridge to configure GPIO1-7 as output High
+ * as they are used for slots1-7 PERST#
+ */
++unsigned int ventana_plx_gpio = 0xfe;
+ static void ventana_pciesw_early_fixup(struct pci_dev *dev)
+ {
+ u32 dw;
+@@ -95,19 +96,25 @@ static void ventana_pciesw_early_fixup(s
+ return;
+
+ pci_read_config_dword(dev, 0x62c, &dw);
++ dev_info(&dev->dev, "de-asserting downstream PERST# 0x%04x\n",
++ ventana_plx_gpio);
+ dw |= 0xaaa8; // GPIO1-7 outputs
+ pci_write_config_dword(dev, 0x62c, dw);
+-
+- pci_read_config_dword(dev, 0x644, &dw);
+- dw |= 0xfe; // GPIO1-7 output high
+- pci_write_config_dword(dev, 0x644, dw);
+-
++ pci_write_config_dword(dev, 0x644, ventana_plx_gpio);
+ msleep(100);
+ }
+ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8609, ventana_pciesw_early_fixup);
+ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8606, ventana_pciesw_early_fixup);
+ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8604, ventana_pciesw_early_fixup);
+
++static int __init setup_ventana_plx_gpio(char *str)
++{
++ get_option(&str, &ventana_plx_gpio);
++
++ return 0;
++}
++early_param("plx_gpio", setup_ventana_plx_gpio);
++
+ static int ar8031_phy_fixup(struct phy_device *dev)
+ {
+ u16 val;
+@@ -308,7 +315,7 @@ static void __init imx6q_init_irq(void)
+ irqchip_init();
+ }
+
+-static const char *imx6q_dt_compat[] __initconst = {
++static const char *imx6q_dt_compat[] __initdata = {
+ "fsl,imx6dl",
+ "fsl,imx6q",
+ NULL,
projects / openwrt / staging / robimarko.git / commitdiff