arm64: dts: freescale: add initial apalis imx8 aka quadmax module support

This patch adds the device tree to support Toradex Apalis iMX8 [1] aka
QuadMax a computer on module which can be used on different carrier
boards.

The module consists of an NXP i.MX 8 family SoC (either i.MX 8QuadMax or
8QuadPlus), two PF8100 PMICs, a KSZ9131 Gigabit Ethernet PHY, 2, 4 or 8
GB of LPDDR4 RAM, an eMMC, an SGTL5000 analogue audio codec, an USB3503A
USB HSIC hub, an optional I2C EEPROM plus an optional Bluetooth/Wi-Fi
module.

Anything that is not self-contained on the module is disabled by
default.

The carrier board device trees in the next patch will include the
module's device tree and enable the supported peripherals of the
carrier board.

Some level of display functionality just landed upstream but requires
further integration/testing on our side. Therefore, currently only
basic console UART, eMMC and Ethernet functionality work fine.

As there is no i.MX 8QuadPlus device tree upstream those have been
dropped. However, apart from an error message during boot about it
failing to bring up the second Cortex-A72 core this boots fine on
QuadPlus' as well.

[1] https://www.toradex.com/computer-on-modules/apalis-arm-family/nxp-imx-8

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

1 files changed, 340 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/freescale/imx8qm-apalis.dtsi b/arch/arm64/boot/dts/freescale/imx8qm-apalis.dtsi
new file mode 100644
index 000000000000..1c6af9f549a8
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8qm-apalis.dtsi
@@ -0,0 +1,340 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2022 Toradex
+ */
+
+#include "imx8qm-apalis-v1.1.dtsi"
+
+/ {
+	model = "Toradex Apalis iMX8QM";
+	compatible = "toradex,apalis-imx8",
+		     "fsl,imx8qm";
+};
+
+&ethphy0 {
+	interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+};
+
+/*
+ * Apalis iMX8QM V1.0 has PHY KSZ9031. the Micrel PHY driver
+ * doesn't support setting internal PHY delay for TXC line for
+ * this PHY model. Use delay on MAC side instead.
+ */
+&fec1 {
+	fsl,rgmii_txc_dly;
+	phy-mode = "rgmii-rxid";
+};
+
+/* TODO: Apalis HDMI1 */
+
+/* Apalis I2C2 (DDC) */
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_lpi2c0>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	clock-frequency = <100000>;
+};
+
+&lsio_gpio0 {
+	gpio-line-names = "MXM3_279",
+			  "MXM3_277",
+			  "MXM3_135",
+			  "MXM3_203",
+			  "MXM3_201",
+			  "MXM3_275",
+			  "MXM3_110",
+			  "MXM3_120",
+			  "MXM3_1/GPIO1",
+			  "MXM3_3/GPIO2",
+			  "MXM3_124",
+			  "MXM3_122",
+			  "MXM3_5/GPIO3",
+			  "MXM3_7/GPIO4",
+			  "",
+			  "",
+			  "MXM3_4",
+			  "MXM3_211",
+			  "MXM3_209",
+			  "MXM3_2",
+			  "MXM3_136",
+			  "MXM3_134",
+			  "MXM3_6",
+			  "MXM3_8",
+			  "MXM3_112",
+			  "MXM3_118",
+			  "MXM3_114",
+			  "MXM3_116";
+};
+
+&lsio_gpio1 {
+	gpio-line-names = "",
+			  "",
+			  "",
+			  "",
+			  "MXM3_286",
+			  "",
+			  "MXM3_87",
+			  "MXM3_99",
+			  "MXM3_138",
+			  "MXM3_140",
+			  "MXM3_239",
+			  "",
+			  "MXM3_281",
+			  "MXM3_283",
+			  "MXM3_126",
+			  "MXM3_132",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "MXM3_173",
+			  "MXM3_175",
+			  "MXM3_123";
+};
+
+&lsio_gpio2 {
+	gpio-line-names = "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "MXM3_198",
+			  "MXM3_35",
+			  "MXM3_164",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "MXM3_217",
+			  "MXM3_215",
+			  "",
+			  "",
+			  "MXM3_193",
+			  "MXM3_194",
+			  "MXM3_37",
+			  "",
+			  "MXM3_271",
+			  "MXM3_273",
+			  "MXM3_195",
+			  "MXM3_197",
+			  "MXM3_177",
+			  "MXM3_179",
+			  "MXM3_181",
+			  "MXM3_183",
+			  "MXM3_185",
+			  "MXM3_187";
+};
+
+&lsio_gpio3 {
+	gpio-line-names = "MXM3_191",
+			  "",
+			  "MXM3_221",
+			  "MXM3_225",
+			  "MXM3_223",
+			  "MXM3_227",
+			  "MXM3_200",
+			  "MXM3_235",
+			  "MXM3_231",
+			  "MXM3_229",
+			  "MXM3_233",
+			  "MXM3_204",
+			  "MXM3_196",
+			  "",
+			  "MXM3_202",
+			  "",
+			  "",
+			  "",
+			  "MXM3_305",
+			  "MXM3_307",
+			  "MXM3_309",
+			  "MXM3_311",
+			  "MXM3_315",
+			  "MXM3_317",
+			  "MXM3_319",
+			  "MXM3_321",
+			  "MXM3_15/GPIO7",
+			  "MXM3_63",
+			  "MXM3_17/GPIO8",
+			  "MXM3_12",
+			  "MXM3_14",
+			  "MXM3_16";
+};
+
+&lsio_gpio4 {
+	gpio-line-names = "MXM3_18",
+			  "MXM3_11/GPIO5",
+			  "MXM3_13/GPIO6",
+			  "MXM3_274",
+			  "MXM3_84",
+			  "MXM3_262",
+			  "MXM3_96",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "MXM3_190",
+			  "",
+			  "",
+			  "",
+			  "MXM3_269",
+			  "MXM3_251",
+			  "MXM3_253",
+			  "MXM3_295",
+			  "MXM3_299",
+			  "MXM3_301",
+			  "MXM3_297",
+			  "MXM3_293",
+			  "MXM3_291",
+			  "MXM3_289",
+			  "MXM3_287";
+
+	/* Enable pcie root / sata ref clock unconditionally */
+	pcie-sata-hog {
+		gpios = <27 GPIO_ACTIVE_HIGH>;
+	};
+
+};
+
+&lsio_gpio5 {
+	gpio-line-names = "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "MXM3_150",
+			  "MXM3_160",
+			  "MXM3_162",
+			  "MXM3_144",
+			  "MXM3_146",
+			  "MXM3_148",
+			  "MXM3_152",
+			  "MXM3_156",
+			  "MXM3_158",
+			  "MXM3_159",
+			  "MXM3_184",
+			  "MXM3_180",
+			  "MXM3_186",
+			  "MXM3_188",
+			  "MXM3_176",
+			  "MXM3_178";
+};
+
+&lsio_gpio6 {
+	gpio-line-names = "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "",
+			  "MXM3_261",
+			  "MXM3_263",
+			  "MXM3_259",
+			  "MXM3_257",
+			  "MXM3_255",
+			  "MXM3_128",
+			  "MXM3_130",
+			  "MXM3_265",
+			  "MXM3_249",
+			  "MXM3_247",
+			  "MXM3_245",
+			  "MXM3_243";
+};
+
+&pinctrl_fec1 {
+	fsl,pins =
+		/* Use pads in 1.8V mode */
+		<IMX8QM_COMP_CTL_GPIO_1V8_3V3_ENET_ENETB_PAD			0x000014a0>,
+		<IMX8QM_ENET0_MDC_CONN_ENET0_MDC				0x06000020>,
+		<IMX8QM_ENET0_MDIO_CONN_ENET0_MDIO				0x06000020>,
+		<IMX8QM_ENET0_RGMII_TX_CTL_CONN_ENET0_RGMII_TX_CTL		0x06000020>,
+		<IMX8QM_ENET0_RGMII_TXC_CONN_ENET0_RGMII_TXC			0x06000020>,
+		<IMX8QM_ENET0_RGMII_TXD0_CONN_ENET0_RGMII_TXD0			0x06000020>,
+		<IMX8QM_ENET0_RGMII_TXD1_CONN_ENET0_RGMII_TXD1			0x06000020>,
+		<IMX8QM_ENET0_RGMII_TXD2_CONN_ENET0_RGMII_TXD2			0x06000020>,
+		<IMX8QM_ENET0_RGMII_TXD3_CONN_ENET0_RGMII_TXD3			0x06000020>,
+		<IMX8QM_ENET0_RGMII_RXC_CONN_ENET0_RGMII_RXC			0x06000020>,
+		<IMX8QM_ENET0_RGMII_RX_CTL_CONN_ENET0_RGMII_RX_CTL		0x06000020>,
+		<IMX8QM_ENET0_RGMII_RXD0_CONN_ENET0_RGMII_RXD0			0x06000020>,
+		<IMX8QM_ENET0_RGMII_RXD1_CONN_ENET0_RGMII_RXD1			0x06000020>,
+		<IMX8QM_ENET0_RGMII_RXD2_CONN_ENET0_RGMII_RXD2			0x06000020>,
+		<IMX8QM_ENET0_RGMII_RXD3_CONN_ENET0_RGMII_RXD3			0x06000020>,
+		<IMX8QM_ENET0_REFCLK_125M_25M_CONN_ENET0_REFCLK_125M_25M	0x06000020>,
+		/* On-module ETH_RESET# */
+		<IMX8QM_LVDS1_GPIO01_LSIO_GPIO1_IO11				0x06000020>,
+		/* On-module ETH_INT# */
+		<IMX8QM_LVDS0_GPIO01_LSIO_GPIO1_IO05				0x04000060>;
+};
+
+&pinctrl_fec1_sleep {
+	fsl,pins =
+		<IMX8QM_COMP_CTL_GPIO_1V8_3V3_ENET_ENETB_PAD			0x000014a0>,
+		<IMX8QM_ENET0_MDC_LSIO_GPIO4_IO14				0x04000040>,
+		<IMX8QM_ENET0_MDIO_LSIO_GPIO4_IO13				0x04000040>,
+		<IMX8QM_ENET0_RGMII_TX_CTL_LSIO_GPIO5_IO31			0x04000040>,
+		<IMX8QM_ENET0_RGMII_TXC_LSIO_GPIO5_IO30				0x04000040>,
+		<IMX8QM_ENET0_RGMII_TXD0_LSIO_GPIO6_IO00			0x04000040>,
+		<IMX8QM_ENET0_RGMII_TXD1_LSIO_GPIO6_IO01			0x04000040>,
+		<IMX8QM_ENET0_RGMII_TXD2_LSIO_GPIO6_IO02			0x04000040>,
+		<IMX8QM_ENET0_RGMII_TXD3_LSIO_GPIO6_IO03			0x04000040>,
+		<IMX8QM_ENET0_RGMII_RXC_LSIO_GPIO6_IO04				0x04000040>,
+		<IMX8QM_ENET0_RGMII_RX_CTL_LSIO_GPIO6_IO05			0x04000040>,
+		<IMX8QM_ENET0_RGMII_RXD0_LSIO_GPIO6_IO06			0x04000040>,
+		<IMX8QM_ENET0_RGMII_RXD1_LSIO_GPIO6_IO07			0x04000040>,
+		<IMX8QM_ENET0_RGMII_RXD2_LSIO_GPIO6_IO08			0x04000040>,
+		<IMX8QM_ENET0_RGMII_RXD3_LSIO_GPIO6_IO09			0x04000040>,
+		<IMX8QM_ENET0_REFCLK_125M_25M_LSIO_GPIO4_IO15			0x04000040>,
+		<IMX8QM_LVDS1_GPIO01_LSIO_GPIO1_IO11				0x04000040>,
+		<IMX8QM_LVDS0_GPIO01_LSIO_GPIO1_IO05				0x04000040>;
+};
+
+&iomuxc {
+	/* Apalis I2C2 (DDC) */
+	pinctrl_lpi2c0: lpi2c0grp {
+		fsl,pins =
+			<IMX8QM_HDMI_TX0_TS_SCL_DMA_I2C0_SCL			0x04000022>,
+			<IMX8QM_HDMI_TX0_TS_SDA_DMA_I2C0_SDA			0x04000022>;
+	};
+};
+
+/* On-module PCIe_CTRL0_CLKREQ */
+&pinctrl_pcie_sata_refclk {
+	fsl,pins =
+		<IMX8QM_PCIE_CTRL0_CLKREQ_B_LSIO_GPIO4_IO27			0x00000021>;
+};
+
+/* TODO: On-module Wi-Fi */
+
+/* Apalis MMC1 */
+&usdhc2 {
+	/*
+	 * The PMIC on V1.0A HW generates 1.6V instead of 1.8V which creates
+	 * issues with certain SD cards, disable 1.8V signaling for now.
+	 */
+	no-1-8-v;
+};
+
+/* Apalis SD1 */
+&usdhc3 {
+	/*
+	 * The PMIC on V1.0A HW generates 1.6V instead of 1.8V which creates
+	 * issues with certain SD cards, disable 1.8V signaling for now.
+	 */
+	no-1-8-v;
+};