configs: add a DT-enabled Raspberry Pi defconfig

This is an example of a Device-Tree-enabled Raspberry Pi defconfig.

We have to use a 3.18-based kernel for that, but there are a few
limitations:

  - we can not use the minimalist RPi defconfig bundled with the kernel,
    namely bcmrpi_quick_defconfig, because it is not DT-enabled, and
    sets CONFIG_ARM_PATCH_PHYS_VIRT to 'n', which prompts a value for
    CONFIG_PHYS_OFFSET, as it as no default for the bcm familly;

  - most importantly, the rpi-3.18.y branch is constantly rebased, so
    there is no guarantee that the sha1 I use today will still be usable
    in the long term. Using the name of hte branch is not better either.

So, we bundle our own DT-enabled linux defconfig that is based on
bcmrpi_quick_defconfig, with just CONFIG_ARM_PATCH_PHYS_VIRT set and the
Device TRee enabled.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/board/raspberrypi/linux-3.18-rpi-dt.defconfig b/board/raspberrypi/linux-3.18-rpi-dt.defconfig
new file mode 100644 (file)
index 0000000..69c0fa3
--- /dev/null
+++ b/board/raspberrypi/linux-3.18-rpi-dt.defconfig
@@ -0,0 +1,204 @@
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_KERNEL_XZ=y
+# CONFIG_SWAP is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_FHANDLE=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IKCONFIG=m
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=21
+# CONFIG_UTS_NS is not set
+# CONFIG_IPC_NS is not set
+# CONFIG_PID_NS is not set
+# CONFIG_NET_NS is not set
+CONFIG_RELAY=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_JUMP_LABEL=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+CONFIG_ARCH_BCM2708=y
+CONFIG_BCM2708_DT=y
+CONFIG_PREEMPT=y
+CONFIG_AEABI=y
+CONFIG_KSM=y
+CONFIG_UACCESS_WITH_MEMCPY=y
+# CONFIG_ATAGS is not set
+CONFIG_KEXEC=y
+CONFIG_AUTO_ZRELADDR=y
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_STAT=m
+CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=m
+CONFIG_CPU_FREQ_GOV_USERSPACE=m
+CONFIG_CPU_FREQ_GOV_ONDEMAND=m
+CONFIG_VFP=y
+CONFIG_BINFMT_MISC=m
+# CONFIG_SUSPEND is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_PACKET_DIAG=m
+CONFIG_UNIX=y
+CONFIG_UNIX_DIAG=m
+CONFIG_INET=y
+CONFIG_SYN_COOKIES=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+CONFIG_INET_DIAG=m
+CONFIG_INET_UDP_DIAG=m
+# CONFIG_IPV6 is not set
+CONFIG_NETLINK_DIAG=y
+CONFIG_BPF_JIT=y
+# CONFIG_WIRELESS is not set
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_FIRMWARE_IN_KERNEL is not set
+CONFIG_CONNECTOR=y
+CONFIG_BLK_DEV_LOOP=m
+CONFIG_BLK_DEV_RAM=m
+CONFIG_SCSI=m
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_BLK_DEV_SD=m
+# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_NETDEVICES=y
+CONFIG_DUMMY=m
+# CONFIG_ETHERNET is not set
+CONFIG_USB_USBNET=m
+# CONFIG_USB_NET_AX8817X is not set
+# CONFIG_USB_NET_AX88179_178A is not set
+# CONFIG_USB_NET_CDCETHER is not set
+# CONFIG_USB_NET_CDC_NCM is not set
+CONFIG_USB_NET_SMSC95XX=m
+# CONFIG_USB_NET_NET1080 is not set
+# CONFIG_USB_NET_CDC_SUBSET is not set
+# CONFIG_USB_NET_ZAURUS is not set
+# CONFIG_WLAN is not set
+CONFIG_INPUT_SPARSEKMAP=m
+CONFIG_INPUT_EVDEV=m
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_DEVKMEM is not set
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_HW_RANDOM_BCM2708=m
+CONFIG_I2C=m
+CONFIG_I2C_CHARDEV=m
+CONFIG_I2C_BCM2835=m
+CONFIG_I2C_BCM2708=m
+CONFIG_SPI=y
+CONFIG_SPI_BCM2835=m
+CONFIG_SPI_BCM2708=m
+CONFIG_SPI_BITBANG=m
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_GENERIC_PLATFORM=y
+# CONFIG_HWMON is not set
+CONFIG_THERMAL=y
+CONFIG_THERMAL_BCM2835=y
+CONFIG_WATCHDOG=y
+CONFIG_SOFT_WATCHDOG=m
+CONFIG_BCM2708_WDT=m
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=m
+CONFIG_REGULATOR_USERSPACE_CONSUMER=m
+CONFIG_FB=y
+CONFIG_FIRMWARE_EDID=y
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_FB_BCM2708=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+CONFIG_SOUND=m
+CONFIG_SND=m
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_MIXER_OSS=m
+CONFIG_SND_PCM_OSS=m
+CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_HRTIMER=m
+# CONFIG_SND_SUPPORT_OLD_API is not set
+CONFIG_SND_DUMMY=m
+CONFIG_SND_BCM2835=m
+# CONFIG_SND_SPI is not set
+CONFIG_SND_USB_AUDIO=m
+CONFIG_HIDRAW=y
+CONFIG_UHID=y
+CONFIG_HID_PID=y
+CONFIG_USB_HIDDEV=y
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_DYNAMIC_MINORS=y
+CONFIG_USB_DWCOTG=y
+CONFIG_USB_STORAGE=m
+CONFIG_USB_STORAGE_REALTEK=m
+CONFIG_USB_STORAGE_DATAFAB=m
+CONFIG_USB_STORAGE_FREECOM=m
+CONFIG_USB_STORAGE_ISD200=m
+CONFIG_USB_STORAGE_USBAT=m
+CONFIG_USB_STORAGE_SDDR09=m
+CONFIG_USB_STORAGE_SDDR55=m
+CONFIG_USB_STORAGE_JUMPSHOT=m
+CONFIG_USB_STORAGE_ALAUDA=m
+CONFIG_USB_STORAGE_ONETOUCH=m
+CONFIG_USB_STORAGE_KARMA=m
+CONFIG_USB_STORAGE_CYPRESS_ATACB=m
+CONFIG_USB_STORAGE_ENE_UB6250=m
+CONFIG_MMC=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MMC_BCM2835=y
+CONFIG_MMC_BCM2835_DMA=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=m
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=m
+CONFIG_LEDS_TRIGGER_ONESHOT=m
+CONFIG_LEDS_TRIGGER_HEARTBEAT=m
+CONFIG_LEDS_TRIGGER_BACKLIGHT=m
+CONFIG_LEDS_TRIGGER_CPU=y
+CONFIG_LEDS_TRIGGER_GPIO=m
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
+CONFIG_LEDS_TRIGGER_TRANSIENT=m
+CONFIG_LEDS_TRIGGER_CAMERA=m
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_EXT2_FS=m
+CONFIG_EXT3_FS=m
+# CONFIG_EXT3_FS_XATTR is not set
+CONFIG_EXT4_FS=y
+CONFIG_FANOTIFY=y
+CONFIG_MSDOS_FS=m
+CONFIG_VFAT_FS=m
+CONFIG_FAT_DEFAULT_CODEPAGE=850
+CONFIG_FAT_DEFAULT_IOCHARSET="utf8"
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_CONFIGFS_FS=m
+# CONFIG_MISC_FILESYSTEMS is not set
+# CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_NLS_DEFAULT="utf8"
+CONFIG_NLS_CODEPAGE_437=m
+CONFIG_NLS_CODEPAGE_850=m
+CONFIG_NLS_ASCII=m
+CONFIG_NLS_ISO8859_1=m
+CONFIG_NLS_ISO8859_15=m
+CONFIG_NLS_UTF8=m
+CONFIG_PRINTK_TIME=y
+CONFIG_STRIP_ASM_SYMS=y
+CONFIG_PANIC_ON_OOPS=y
+# CONFIG_RCU_CPU_STALL_VERBOSE is not set
+CONFIG_STRICT_DEVMEM=y
+CONFIG_DEBUG_USER=y
+CONFIG_CRYPTO_MANAGER=m
+# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
+CONFIG_CRYPTO_NULL=m
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
+# CONFIG_CRYPTO_HW is not set

diff --git a/configs/raspberrypi_dt_defconfig b/configs/raspberrypi_dt_defconfig
new file mode 100644 (file)
index 0000000..956b215
--- /dev/null
+++ b/configs/raspberrypi_dt_defconfig
@@ -0,0 +1,12 @@
+BR2_arm=y
+BR2_arm1176jzf_s=y
+BR2_TARGET_GENERIC_GETTY_PORT="tty1"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_GIT=y
+BR2_LINUX_KERNEL_CUSTOM_REPO_URL="git://github.com/raspberrypi/linux.git"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="b9c9f8fc69aaba236169798c18dc1590fccf7acd"
+BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/raspberrypi/linux-3.18-rpi-dt.defconfig"
+BR2_LINUX_KERNEL_ZIMAGE=y
+BR2_PACKAGE_RPI_FIRMWARE=y
+BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTBS=y