[PATCH v5 16/18] arm64: dts: imx: add imx8qm mek support
Dong Aisheng
aisheng.dong at nxp.com
Fri Mar 5 13:17:46 GMT 2021
The i.MX8QuadMax is a Dual (2x) Cortex-A72 and Quad (4x) Cortex-A53
proccessor with powerful graphic and multimedia features.
This patch adds i.MX8QuadMax MEK board support.
Note that MX8QM needs a special workaround for TLB flush due to a SoC
errata, otherwise there may be random crash if enable both clusters of
A72 and A53. As the errata workaround is still not in mainline, so we
disable A72 cluster first for MX8QM MEK.
Cc: Rob Herring <robh+dt at kernel.org>
Cc: Mark Rutland <mark.rutland at arm.com>
Cc: devicetree at vger.kernel.org
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Sascha Hauer <kernel at pengutronix.de>
Cc: Fabio Estevam <fabio.estevam at nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong at nxp.com>
---
ChangeLog:
v2->v5:
* no changes
v1->v2:
* copyright update to 2019, minor node name change
---
arch/arm64/boot/dts/freescale/Makefile | 1 +
arch/arm64/boot/dts/freescale/imx8qm-mek.dts | 144 +++++++++++++++++++
2 files changed, 145 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/imx8qm-mek.dts
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 6438db3822f8..50b712004ef0 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -57,6 +57,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mq-pico-pi.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mq-thor96.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mq-zii-ultra-rmb3.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mq-zii-ultra-zest.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8qm-mek.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8qxp-ai_ml.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8qxp-colibri-eval-v3.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8qxp-mek.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
new file mode 100644
index 000000000000..ce9d3f0b98fc
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2018-2019 NXP
+ * Dong Aisheng <aisheng.dong at nxp.com>
+ */
+
+/dts-v1/;
+
+#include "imx8qm.dtsi"
+
+/ {
+ model = "Freescale i.MX8QM MEK";
+ compatible = "fsl,imx8qm-mek", "fsl,imx8qm";
+
+ chosen {
+ stdout-path = &lpuart0;
+ };
+
+ cpus {
+ /delete-node/ cpu-map;
+ /delete-node/ cpu at 100;
+ /delete-node/ cpu at 101;
+ };
+
+ memory at 80000000 {
+ device_type = "memory";
+ reg = <0x00000000 0x80000000 0 0x40000000>;
+ };
+
+ reg_usdhc2_vmmc: usdhc2-vmmc {
+ compatible = "regulator-fixed";
+ regulator-name = "SD1_SPWR";
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ gpio = <&lsio_gpio4 19 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+};
+
+&lpuart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_lpuart0>;
+ status = "okay";
+};
+
+&fec1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_fec1>;
+ phy-mode = "rgmii-id";
+ phy-handle = <ðphy0>;
+ fsl,magic-packet;
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethphy0: ethernet-phy at 0 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <0>;
+ };
+
+ ethphy1: ethernet-phy at 1 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <1>;
+ };
+ };
+};
+
+&usdhc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc1>;
+ bus-width = <8>;
+ no-sd;
+ no-sdio;
+ non-removable;
+ status = "okay";
+};
+
+&usdhc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc2>;
+ bus-width = <4>;
+ vmmc-supply = <®_usdhc2_vmmc>;
+ cd-gpios = <&lsio_gpio4 22 GPIO_ACTIVE_LOW>;
+ wp-gpios = <&lsio_gpio4 21 GPIO_ACTIVE_HIGH>;
+ status = "okay";
+};
+
+&iomuxc {
+ pinctrl_fec1: fec1grp {
+ fsl,pins = <
+ 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
+ >;
+ };
+
+ pinctrl_lpuart0: lpuart0grp {
+ fsl,pins = <
+ IMX8QM_UART0_RX_DMA_UART0_RX 0x06000020
+ IMX8QM_UART0_TX_DMA_UART0_TX 0x06000020
+ >;
+ };
+
+ pinctrl_usdhc1: usdhc1grp {
+ fsl,pins = <
+ IMX8QM_EMMC0_CLK_CONN_EMMC0_CLK 0x06000041
+ IMX8QM_EMMC0_CMD_CONN_EMMC0_CMD 0x00000021
+ IMX8QM_EMMC0_DATA0_CONN_EMMC0_DATA0 0x00000021
+ IMX8QM_EMMC0_DATA1_CONN_EMMC0_DATA1 0x00000021
+ IMX8QM_EMMC0_DATA2_CONN_EMMC0_DATA2 0x00000021
+ IMX8QM_EMMC0_DATA3_CONN_EMMC0_DATA3 0x00000021
+ IMX8QM_EMMC0_DATA4_CONN_EMMC0_DATA4 0x00000021
+ IMX8QM_EMMC0_DATA5_CONN_EMMC0_DATA5 0x00000021
+ IMX8QM_EMMC0_DATA6_CONN_EMMC0_DATA6 0x00000021
+ IMX8QM_EMMC0_DATA7_CONN_EMMC0_DATA7 0x00000021
+ IMX8QM_EMMC0_STROBE_CONN_EMMC0_STROBE 0x00000041
+ >;
+ };
+
+ pinctrl_usdhc2: usdhc2grp {
+ fsl,pins = <
+ IMX8QM_USDHC1_CLK_CONN_USDHC1_CLK 0x06000041
+ IMX8QM_USDHC1_CMD_CONN_USDHC1_CMD 0x00000021
+ IMX8QM_USDHC1_DATA0_CONN_USDHC1_DATA0 0x00000021
+ IMX8QM_USDHC1_DATA1_CONN_USDHC1_DATA1 0x00000021
+ IMX8QM_USDHC1_DATA2_CONN_USDHC1_DATA2 0x00000021
+ IMX8QM_USDHC1_DATA3_CONN_USDHC1_DATA3 0x00000021
+ IMX8QM_USDHC1_VSELECT_CONN_USDHC1_VSELECT 0x00000021
+ >;
+ };
+};
--
2.25.1
More information about the linux-arm-kernel
mailing list