LF-496-5 arm64: dts: add i.MX8QM inmate/root dts

Use the following command to boot the 2nd linux, the lpuart2 is in base
board. The m4 should be disabled for qm mek, because lpuart2 is used
by m4.

jailhouse cell linux imx8qm-linux-demo.cell Image -d
imx8qm-mek-inmate.dtb -c "clk_ignore_unused console=ttyLP2,115200
earlycon=lpuart32,mmio32,0x5a060010,115200 cma=32MB root=/dev/mmcblk0p2
rootwait rw"

Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>

1 files changed, 108 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/freescale/imx8qm-mek-root.dts b/arch/arm64/boot/dts/freescale/imx8qm-mek-root.dts
new file mode 100644
index 000000000000..55cb2af806e8
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8qm-mek-root.dts
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2019 NXP
+ */
+
+#include "imx8qm-mek.dts"
+
+/ {
+	domu {
+		/*
+		 * There are 5 MUs, 0A is used by root cell, 1A is used
+		 * by ATF, so for non-root cell, 2A/3A/4A could be used.
+		 * SC_R_MU_0A
+		 * SC_R_MU_1A
+		 * SC_R_MU_2A
+		 * SC_R_MU_3A
+		 * SC_R_MU_4A
+		 * The rsrcs and pads will be configured by uboot scu_rm cmd
+		 */
+		#address-cells = <1>;
+		#size-cells = <0>;
+		doma {
+			/*
+			 * This is not for domu, this is just reuse
+			 * the method for jailhouse inmate non root cell
+			 * Linux.
+			 */
+			compatible = "xen,domu";
+			/*
+			 * The reg property will be updated by U-Boot to
+			 * reflect the partition id.
+			 */
+			reg = <0>;
+			init_on_rsrcs = <
+				IMX_SC_R_MU_2A
+			>;
+			rsrcs = <
+				IMX_SC_R_SDHC_0
+				IMX_SC_R_UART_2
+				IMX_SC_R_MU_2A
+			>;
+			pads = <
+				/* emmc */
+				IMX8QM_EMMC0_CLK
+				IMX8QM_EMMC0_CMD
+				IMX8QM_EMMC0_DATA0
+				IMX8QM_EMMC0_DATA1
+				IMX8QM_EMMC0_DATA2
+				IMX8QM_EMMC0_DATA3
+				IMX8QM_EMMC0_DATA4
+				IMX8QM_EMMC0_DATA5
+				IMX8QM_EMMC0_DATA6
+				IMX8QM_EMMC0_DATA7
+				IMX8QM_EMMC0_STROBE
+				IMX8QM_EMMC0_RESET_B
+				/* lpuart2 */
+				IMX8QM_UART0_RTS_B
+				IMX8QM_UART0_CTS_B
+			>;
+		};
+	};
+
+};
+
+&{/reserved-memory} {
+
+	jh_reserved: jh@0xfdc00000 {
+		no-map;
+		reg = <0x0 0xfdc00000 0x0 0x400000>;
+	};
+
+	loader_reserved: loader@0xfdb00000 {
+		no-map;
+		reg = <0x0 0xfdb00000 0x0 0x00100000>;
+	};
+
+	ivshmem_reserved: ivshmem@0xfd900000 {
+		no-map;
+		reg = <0x0 0xfd900000 0x0 0x00200000>;
+	};
+
+	pci_reserved: pci@0xfd700000 {
+		no-map;
+		reg = <0x0 0xfd700000 0x0 0x00200000>;
+	};
+
+	/* Decrease if no need such big memory */
+	inmate_reserved: inmate@0xdf7000000 {
+		no-map;
+		reg = <0x0 0xdf700000 0x0 0x1e000000>;
+	};
+};
+
+&smmu {
+	/* Jailhouse hypervisor will initialize SMMU and use it. */
+	status = "disabled";
+};
+
+&usdhc1 {
+	/* Let U-Boot program SID */
+	iommus = <&smmu 0x10 0x7f80>;
+	/delete-property/ compatible;
+};
+
+&lpuart2 {
+	/* Let inmate linux use this for console */
+	status = "disabled";
+};