board: add support for ARM Juno r0 and r1 Development Boards

The Juno ARM Development Platform (ADP) is a software development
platform for ARMv8-A, it includes the Juno Versatile Express board
and an ARMv8-A reference software port available through Linaro.

Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

board/arm/juno/linux-juno-defconfig

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+CONFIG_SMP=y
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_FHANDLE=y
+CONFIG_AUDIT=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_MEMCG=y
+CONFIG_MEMCG_SWAP=y
+CONFIG_MEMCG_KMEM=y
+CONFIG_CGROUP_HUGETLB=y
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_PROFILING=y
+CONFIG_JUMP_LABEL=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_ARCH_VEXPRESS=y
+CONFIG_PCI=y
+CONFIG_PCI_MSI=y
+CONFIG_PCI_HOST_GENERIC=y
+CONFIG_PCIEPORTBUS=y
+CONFIG_HOTPLUG_PCI_PCIE=y
+CONFIG_HOTPLUG_PCI=y
+CONFIG_NR_CPUS=6
+CONFIG_PREEMPT=y
+CONFIG_KSM=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_CMA=y
+CONFIG_CMDLINE="console=ttyAMA0"
+CONFIG_COMPAT=y
+CONFIG_CPU_IDLE=y
+CONFIG_ARM_CPUIDLE=y
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_INTERACTIVE=y
+CONFIG_ARM_BIG_LITTLE_CPUFREQ=y
+CONFIG_ARM_DT_BL_CPUFREQ=y
+CONFIG_ARM_SCPI_CPUFREQ=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_BPF_JIT=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_ATA=y
+CONFIG_SATA_AHCI=y
+CONFIG_SATA_AHCI_PLATFORM=y
+CONFIG_AHCI_XGENE=y
+CONFIG_PATA_PLATFORM=y
+CONFIG_PATA_OF_PLATFORM=y
+CONFIG_NETDEVICES=y
+CONFIG_TUN=y
+CONFIG_SKY2=y
+CONFIG_SMC91X=y
+CONFIG_SMSC911X=y
+CONFIG_INPUT_EVDEV=y
+CONFIG_SERIO_AMBAKMI=y
+CONFIG_LEGACY_PTY_COUNT=16
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SERIAL_XILINX_PS_UART=y
+CONFIG_SERIAL_XILINX_PS_UART_CONSOLE=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_DESIGNWARE_PLATFORM=y
+CONFIG_I2C_SLAVE=y
+CONFIG_SPI=y
+CONFIG_SPI_PL022=y
+CONFIG_PTP_1588_CLOCK=m
+CONFIG_GPIO_PL061=y
+CONFIG_GPIO_XGENE=y
+CONFIG_POWER_RESET_XGENE=y
+CONFIG_POWER_RESET_SYSCON=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_REGULATOR_VEXPRESS=m
+CONFIG_DRM=y
+CONFIG_DRM_I2C_NXP_TDA998X=y
+CONFIG_DRM_ARM=y
+CONFIG_DRM_HDLCD=y
+CONFIG_DRM_VIRTUAL_HDLCD=y
+CONFIG_FB_ARMCLCD=y
+CONFIG_LOGO=y
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_ISP1760=y
+CONFIG_NOP_USB_XCEIV=y
+CONFIG_USB_ULPI=y
+CONFIG_MMC=y
+CONFIG_MMC_ARMMMCI=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MMC_SPI=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_EFI=y
+CONFIG_RTC_DRV_PL030=y
+CONFIG_RTC_DRV_PL031=y
+CONFIG_DMADEVICES=y
+CONFIG_PL330_DMA=y
+CONFIG_COMMON_CLK_SCPI=y
+CONFIG_ARM_TIMER_SP804=y
+CONFIG_MAILBOX=y
+CONFIG_ARM_MHU=y
+CONFIG_PHY_XGENE=y
+CONFIG_ARM_SCPI_PROTOCOL=y
+CONFIG_EXT2_FS=y
+CONFIG_EXT3_FS=y
+CONFIG_FANOTIFY=y
+CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
+CONFIG_QUOTA=y
+CONFIG_AUTOFS4_FS=y
+CONFIG_FUSE_FS=y
+CONFIG_CUSE=y
+CONFIG_VFAT_FS=y
+CONFIG_TMPFS=y
+CONFIG_HUGETLBFS=y
+CONFIG_EFIVAR_FS=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_VIRTUALIZATION=y
+CONFIG_KVM=y
+CONFIG_DYNAMIC_DEBUG=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SECURITY=y
+CONFIG_CRYPTO_ANSI_CPRNG=y
+CONFIG_ARM64_CRYPTO=y
+CONFIG_CRYPTO_SHA1_ARM64_CE=y
+CONFIG_CRYPTO_SHA2_ARM64_CE=y
+CONFIG_CRYPTO_GHASH_ARM64_CE=y
+CONFIG_CRYPTO_AES_ARM64_CE_CCM=y
+CONFIG_CRYPTO_AES_ARM64_CE_BLK=y
+CONFIG_SOUND=y
+CONFIG_SND=y
+CONFIG_SND_SOC=y
+CONFIG_SND_SIMPLE_CARD=y
+CONFIG_SND_DESIGNWARE_I2S=y

board/arm/juno/readme.txt

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+ARM Juno r1/r0
+
+Intro
+=====
+
+These instructions apply to all models of the ARM Juno:
+  - Juno r0 (does not support PCIe)
+  - Juno r1 (supports PCIe)
+
+Buildroot will generate the kernel image, device tree blob and a
+minimal root filesystem.
+
+How to build it
+===============
+
+Configure Buildroot
+-------------------
+
+Configuring Buildroot is pretty simple, just execute:
+
+  $ make arm_juno_defconfig
+
+Build the rootfs, kernel and DTB
+--------------------------------
+
+Note: you will need to have access to the network, since Buildroot will
+download the packages' sources.
+
+You may now build your rootfs with:
+
+  $ make
+
+(This may take a while)
+
+Result of the build
+-------------------
+
+After building, you should obtain this tree:
+
+    output/images/
+    +-- rootfs.tar
+    +-- juno.dtb (if Juno r0 is used)
+    +-- juno-r1.dtb (if Juno r1 is used)
+    +-- Image
+
+Preparing your rootfs
+======================
+
+Format your pen drive as a ext3 filesystem by executing:
+
+   $ mkfs.ext3 /dev/<your device>
+
+Installing your rootfs
+======================
+
+After mounting the pen drive please execute the following:
+
+   $ sudo tar -xvf output/images/rootfs.tar -C <pen drive mount path>
+
+When completed make sure to unmount the device:
+
+   $ umount <pen drive mount path>
+
+Insert the pen drive in one of the ARM Juno' USB type A connectors.
+
+Configure *.dtb in the boot configuration for Juno r0
+=====================================================
+
+SITE1/HBI0262B/images.txt
+.....
+NOR3UPDATE: AUTO                 ;Image Update:NONE/AUTO/FORCE
+NOR3ADDRESS: 0x00C00000          ;Image Flash Address
+NOR3FILE: \SOFTWARE\juno.dtb     ;Image File Name
+NOR3NAME: board.dtb              ;Specify Image name to preserve file extension
+NOR3LOAD: 00000000               ;Image Load Address
+NOR3ENTRY: 00000000              ;Image Entry Point
+......
+
+Configure *.dtb in the boot configuration for Juno r1
+=====================================================
+
+SITE1/HBI0262C/images.txt
+......
+NOR3UPDATE: AUTO                 ;Image Update:NONE/AUTO/FORCE
+NOR3ADDRESS: 0x00C00000          ;Image Flash Address
+NOR3FILE: \SOFTWARE\juno-r1.dtb  ;Image File Name
+NOR3NAME: board.dtb              ;Specify target filename to preserve file extension
+NOR3LOAD: 00000000               ;Image Load Address
+NOR3ENTRY: 00000000              ;Image Entry Point
+......
+
+Installing kernel image and DTB
+===============================
+
+1. Connect to the ARM Juno UART0 and execute USB_ON in the terminal
+2. Connect a USB cable between your PC and ARM Juno USB type B connector
+   A mass storage device should appear in your desktop.
+3. Open the software/ folder
+4. Copy the 'Image' file to software/
+5. Copy the 'juno-r1.dtb' (r1) or the 'juno.dtb' (r0) file to software/
+6. Press the red button in the front pannel of ARM Juno
+
+At this time, the board will erase the Flash entry for each new item and
+replace it with the lastest ones.

configs/arm_juno_defconfig

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+BR2_aarch64=y
+BR2_KERNEL_HEADERS_VERSION=y
+BR2_DEFAULT_KERNEL_VERSION="4.2.2"
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_2=y
+BR2_TARGET_GENERIC_HOSTNAME="juno-buildroot"
+BR2_TARGET_GENERIC_ISSUE="Welcome to SNPS Juno by Buildroot"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_GIT=y
+BR2_LINUX_KERNEL_CUSTOM_REPO_URL="http://git.linaro.org/kernel/linux-linaro-tracking.git"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="linux-linaro-4.3-2015.11"
+BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/arm/juno/linux-juno-defconfig"
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="arm/juno arm/juno-r1"