powerpc: dts: Enable device tree support for T2080QDS

Add device tree for T2080QDS board and enable CONFIG_OF_CONTROL
so that device tree can be compiled.

Update board README for device tree usage.

Signed-off-by: Jagdish Gediya <jagdish.gediya@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: York Sun <york.sun@nxp.com>

arch/powerpc/dts/Makefile

@@ -1,5 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0+
 
+dtb-$(CONFIG_TARGET_T2080QDS) += t2080qds.dtb
+
 targets += $(dtb-y)
 
 # Add any required device tree compiler flags here

arch/powerpc/dts/e6500_power_isa.dtsi

@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0+ OR X11
+/*
+ * e6500 Power ISA Device Tree Source (include)
+ *
+ * Copyright 2013 Freescale Semiconductor Inc.
+ * Copyright 2018 NXP
+ */
+
+/ {
+	cpus {
+		power-isa-version = "2.06";
+		power-isa-b;		// Base
+		power-isa-e;		// Embedded
+		power-isa-atb;		// Alternate Time Base
+		power-isa-cs;		// Cache Specification
+		power-isa-ds;		// Decorated Storage
+		power-isa-e.ed;		// Embedded.Enhanced Debug
+		power-isa-e.pd;		// Embedded.External PID
+		power-isa-e.hv;		// Embedded.Hypervisor
+		power-isa-e.le;		// Embedded.Little-Endian
+		power-isa-e.pm;		// Embedded.Performance Monitor
+		power-isa-e.pc;		// Embedded.Processor Control
+		power-isa-ecl;		// Embedded Cache Locking
+		power-isa-exp;		// External Proxy
+		power-isa-fp;		// Floating Point
+		power-isa-fp.r;		// Floating Point.Record
+		power-isa-mmc;		// Memory Coherence
+		power-isa-scpm;		// Store Conditional Page Mobility
+		power-isa-wt;		// Wait
+		power-isa-64;		// 64-bit
+		power-isa-e.pt;		// Embedded.Page Table
+		power-isa-e.hv.lrat;	// Embedded.Hypervisor.LRAT
+		power-isa-e.em;		// Embedded Multi-Threading
+		power-isa-v;		// Vector (AltiVec)
+		fsl,eref-er;		// Enhanced Reservations
+		fsl,eref-deo;		// Data Cache Extended Operations
+		mmu-type = "power-embedded";
+	};
+};

arch/powerpc/dts/t2080.dtsi

@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0+ OR X11
+/*
+ * T2080/T2081 Silicon/SoC Device Tree Source (pre include)
+ *
+ * Copyright 2013 Freescale Semiconductor Inc.
+ * Copyright 2018 NXP
+ */
+
+/dts-v1/;
+
+/include/ "e6500_power_isa.dtsi"
+
+/ {
+	#address-cells = <2>;
+	#size-cells = <2>;
+	interrupt-parent = <&mpic>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: PowerPC,e6500@0 {
+			device_type = "cpu";
+			reg = <0 1>;
+			fsl,portid-mapping = <0x80000000>;
+		};
+		cpu1: PowerPC,e6500@2 {
+			device_type = "cpu";
+			reg = <2 3>;
+			fsl,portid-mapping = <0x80000000>;
+		};
+		cpu2: PowerPC,e6500@4 {
+			device_type = "cpu";
+			reg = <4 5>;
+			fsl,portid-mapping = <0x80000000>;
+		};
+		cpu3: PowerPC,e6500@6 {
+			device_type = "cpu";
+			reg = <6 7>;
+			fsl,portid-mapping = <0x80000000>;
+		};
+	};
+
+	soc: soc@ffe000000 {
+		ranges = <0x00000000 0xf 0xfe000000 0x1000000>;
+		reg = <0xf 0xfe000000 0 0x00001000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		device_type = "soc";
+		compatible = "simple-bus";
+
+		mpic: pic@40000 {
+			interrupt-controller;
+			#address-cells = <0>;
+			#interrupt-cells = <4>;
+			reg = <0x40000 0x40000>;
+			compatible = "fsl,mpic";
+			device_type = "open-pic";
+			clock-frequency = <0x0>;
+		};
+	};
+};

arch/powerpc/dts/t2080qds.dts

@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0+ OR X11
+/*
+ * T2080QDS Device Tree Source
+ *
+ * Copyright 2013 - 2015 Freescale Semiconductor Inc.
+ * Copyright 2018 NXP
+ */
+
+/include/ "t2080.dtsi"
+
+/ {
+	model = "fsl,T2080QDS";
+	compatible = "fsl,T2080QDS";
+	#address-cells = <2>;
+	#size-cells = <2>;
+	interrupt-parent = <&mpic>;
+};

board/freescale/t208xqds/README

@@ -272,3 +272,22 @@ How to update the ucode of Freescale FMAN
 
 For more details, please refer to T2080QDS User Guide and access
 website www.freescale.com and Freescale QorIQ SDK Infocenter document.
+
+Device tree support and how to enable it for different configs
+--------------------------------------------------------------
+Device tree support is available for t2080qds for below mentioned boot,
+1. NOR Boot
+2. NAND Boot
+3. SD Boot
+4. SPIFLASH Boot
+
+To enable device tree support for other boot, below configs need to be
+enabled in relative defconfig file,
+1. CONFIG_DEFAULT_DEVICE_TREE="t2080qds" (Change default device tree name if required)
+2. CONFIG_OF_CONTROL
+3. CONFIG_MPC85XX_HAVE_RESET_VECTOR if reset vector is located at
+   CONFIG_RESET_VECTOR_ADDRESS - 0xffc
+
+If device tree support is enabled in defconfig,
+1. use 'u-boot-with-dtb.bin' for NOR boot.
+2. use 'u-boot-with-spl-pbl.bin' for other boot.

configs/T2080QDS_NAND_defconfig

@@ -7,6 +7,7 @@ CONFIG_SPL_DRIVERS_MISC_SUPPORT=y
 CONFIG_SPL=y
 CONFIG_MPC85xx=y
 CONFIG_TARGET_T2080QDS=y
+CONFIG_DEFAULT_DEVICE_TREE="t2080qds"
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
@@ -35,6 +36,7 @@ CONFIG_CMD_FAT=y
 CONFIG_CMD_MTDPARTS=y
 CONFIG_MTDIDS_DEFAULT="nor0=fe8000000.nor,nand0=fff800000.flash,spi0=spife110000.0"
 CONFIG_MTDPARTS_DEFAULT="mtdparts=fe8000000.nor:1m(uboot),5m(kernel),128k(dtb),96m(fs),-(user);fff800000.flash:1m(uboot),5m(kernel),128k(dtb),96m(fs),-(user);spife110000.0:1m(uboot),5m(kernel),128k(dtb),-(user)"
+CONFIG_OF_CONTROL=y
 CONFIG_ENV_IS_IN_NAND=y
 CONFIG_FSL_CAAM=y
 CONFIG_FSL_ESDHC=y
@@ -54,4 +56,3 @@ CONFIG_SPI=y
 CONFIG_FSL_ESPI=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
-CONFIG_OF_LIBFDT=y

configs/T2080QDS_SDCARD_defconfig

@@ -8,6 +8,7 @@ CONFIG_SPL_DRIVERS_MISC_SUPPORT=y
 CONFIG_SPL=y
 CONFIG_MPC85xx=y
 CONFIG_TARGET_T2080QDS=y
+CONFIG_DEFAULT_DEVICE_TREE="t2080qds"
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
@@ -35,6 +36,7 @@ CONFIG_CMD_FAT=y
 CONFIG_CMD_MTDPARTS=y
 CONFIG_MTDIDS_DEFAULT="nor0=fe8000000.nor,nand0=fff800000.flash,spi0=spife110000.0"
 CONFIG_MTDPARTS_DEFAULT="mtdparts=fe8000000.nor:1m(uboot),5m(kernel),128k(dtb),96m(fs),-(user);fff800000.flash:1m(uboot),5m(kernel),128k(dtb),96m(fs),-(user);spife110000.0:1m(uboot),5m(kernel),128k(dtb),-(user)"
+CONFIG_OF_CONTROL=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_FSL_CAAM=y
 CONFIG_FSL_ESDHC=y
@@ -53,4 +55,3 @@ CONFIG_SPI=y
 CONFIG_FSL_ESPI=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
-CONFIG_OF_LIBFDT=y

configs/T2080QDS_SPIFLASH_defconfig

@@ -9,6 +9,7 @@ CONFIG_SPL_SPI_FLASH_SUPPORT=y
 CONFIG_SPL_SPI_SUPPORT=y
 CONFIG_MPC85xx=y
 CONFIG_TARGET_T2080QDS=y
+CONFIG_DEFAULT_DEVICE_TREE="t2080qds"
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
@@ -36,6 +37,7 @@ CONFIG_CMD_FAT=y
 CONFIG_CMD_MTDPARTS=y
 CONFIG_MTDIDS_DEFAULT="nor0=fe8000000.nor,nand0=fff800000.flash,spi0=spife110000.0"
 CONFIG_MTDPARTS_DEFAULT="mtdparts=fe8000000.nor:1m(uboot),5m(kernel),128k(dtb),96m(fs),-(user);fff800000.flash:1m(uboot),5m(kernel),128k(dtb),96m(fs),-(user);spife110000.0:1m(uboot),5m(kernel),128k(dtb),-(user)"
+CONFIG_OF_CONTROL=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_FSL_CAAM=y
 CONFIG_FSL_ESDHC=y
@@ -54,4 +56,3 @@ CONFIG_SPI=y
 CONFIG_FSL_ESPI=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
-CONFIG_OF_LIBFDT=y

configs/T2080QDS_defconfig

@@ -2,6 +2,7 @@ CONFIG_PPC=y
 CONFIG_SYS_TEXT_BASE=0xEFF40000
 CONFIG_MPC85xx=y
 CONFIG_TARGET_T2080QDS=y
+CONFIG_MPC85XX_HAVE_RESET_VECTOR=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
@@ -24,6 +25,8 @@ CONFIG_CMD_FAT=y
 CONFIG_CMD_MTDPARTS=y
 CONFIG_MTDIDS_DEFAULT="nor0=fe8000000.nor,nand0=fff800000.flash,spi0=spife110000.0"
 CONFIG_MTDPARTS_DEFAULT="mtdparts=fe8000000.nor:1m(uboot),5m(kernel),128k(dtb),96m(fs),-(user);fff800000.flash:1m(uboot),5m(kernel),128k(dtb),96m(fs),-(user);spife110000.0:1m(uboot),5m(kernel),128k(dtb),-(user)"
+CONFIG_OF_CONTROL=y
+CONFIG_DEFAULT_DEVICE_TREE="t2080qds"
 CONFIG_ENV_IS_IN_FLASH=y
 CONFIG_FSL_CAAM=y
 CONFIG_FSL_ESDHC=y
@@ -42,4 +45,3 @@ CONFIG_SPI=y
 CONFIG_FSL_ESPI=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
-CONFIG_OF_LIBFDT=y