* [Buildroot] [PATCH 0/4] LEGO MINDSTORMS EV3 Updates
@ 2016-10-30 23:32 David Lechner
2016-10-30 23:32 ` [Buildroot] [PATCH 1/4] configs/lego_ev3: add U-Boot support David Lechner
` (3 more replies)
0 siblings, 4 replies; 12+ messages in thread
From: David Lechner @ 2016-10-30 23:32 UTC (permalink / raw)
To: buildroot
Hi,
I saw that you have EV3 support using the ev3dev kernel (I'm the ev3dev
maintainer). Here are some updates for better EV3 support in Buildroot.
Earlier this year, I submitted a patch to U-Boot for EV3 support, so we can
now use mainline U-Boot for EV3.
Also, following up from a recent Buildroot email thread, I have added a script
to create usable images using the genimage tool. I also added a linux extension
for the ev3dev drivers. We use them as a git submodule in our kernel, but since
buildroot doesn't seem to be able to handle that, this accomplishes the same
result.
FYI, I am also working on mainline linux kernel support for the EV3, so maybe
around 4.10 or 4.11, we can switch to a mainline kernel here and it will
actually boot. If you don't want to include the ev3dev kernel extension stuff,
that is OK. I assume no one is using Buildroot much with the EV3 at this point
anyway.
David Lechner (4):
configs/lego_ev3: add U-Boot support
board/lego/ev3: Create images using genimage
linux: add ev3dev extension
board/lego/ev3: Use ev3dev linux ext for ev3dev drivers
board/lego/ev3/genimage.cfg | 57 ++++
board/lego/ev3/linux_defconfig | 297 +++++++++++++++++++++
.../0001-Create-empty-drivers-lego-Kconfig.patch | 24 --
board/lego/ev3/post-image.sh | 14 +
board/lego/ev3/readme.txt | 84 ++----
configs/lego_ev3_defconfig | 17 +-
linux/Config.ext.in | 10 +
linux/linux-ext-ev3dev.mk | 13 +
package/Config.in | 1 +
package/ev3dev/Config.in | 12 +
package/ev3dev/ev3dev.mk | 11 +
package/ev3dev/lego-linux-drivers.hash | 2 +
support/scripts/pkg-stats | 1 +
13 files changed, 450 insertions(+), 93 deletions(-)
create mode 100644 board/lego/ev3/genimage.cfg
create mode 100644 board/lego/ev3/linux_defconfig
delete mode 100644 board/lego/ev3/patches/linux/0001-Create-empty-drivers-lego-Kconfig.patch
create mode 100755 board/lego/ev3/post-image.sh
create mode 100644 linux/linux-ext-ev3dev.mk
create mode 100644 package/ev3dev/Config.in
create mode 100644 package/ev3dev/ev3dev.mk
create mode 100644 package/ev3dev/lego-linux-drivers.hash
--
2.7.4
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Buildroot] [PATCH 1/4] configs/lego_ev3: add U-Boot support
2016-10-30 23:32 [Buildroot] [PATCH 0/4] LEGO MINDSTORMS EV3 Updates David Lechner
@ 2016-10-30 23:32 ` David Lechner
2016-11-01 15:02 ` Thomas Petazzoni
2016-10-30 23:32 ` [Buildroot] [PATCH 2/4] board/lego/ev3: Create images using genimage David Lechner
` (2 subsequent siblings)
3 siblings, 1 reply; 12+ messages in thread
From: David Lechner @ 2016-10-30 23:32 UTC (permalink / raw)
To: buildroot
This adds U-Boot configuration for LEGO MINDSTORMS EV3. U-Boot has
had support for LEGO MINDSTORMS EV3 since v2016.05.
Signed-off-by: David Lechner <david@lechnology.com>
---
configs/lego_ev3_defconfig | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/configs/lego_ev3_defconfig b/configs/lego_ev3_defconfig
index 1ddc4f9..bf425f1 100644
--- a/configs/lego_ev3_defconfig
+++ b/configs/lego_ev3_defconfig
@@ -24,3 +24,8 @@ BR2_LINUX_KERNEL_UIMAGE=y
BR2_TARGET_ROOTFS_EXT2=y
BR2_TARGET_ROOTFS_EXT2_3=y
# BR2_TARGET_ROOTFS_TAR is not set
+
+# U-Boot
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="legoev3"
--
2.7.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [Buildroot] [PATCH 2/4] board/lego/ev3: Create images using genimage
2016-10-30 23:32 [Buildroot] [PATCH 0/4] LEGO MINDSTORMS EV3 Updates David Lechner
2016-10-30 23:32 ` [Buildroot] [PATCH 1/4] configs/lego_ev3: add U-Boot support David Lechner
@ 2016-10-30 23:32 ` David Lechner
2016-10-31 4:19 ` Baruch Siach
` (2 more replies)
2016-10-30 23:32 ` [Buildroot] [PATCH 3/4] linux: add ev3dev extension David Lechner
2016-10-30 23:32 ` [Buildroot] [PATCH 4/4] board/lego/ev3: Use ev3dev linux ext for ev3dev drivers David Lechner
3 siblings, 3 replies; 12+ messages in thread
From: David Lechner @ 2016-10-30 23:32 UTC (permalink / raw)
To: buildroot
This adds a script to create SD card and flash images for LEGO MINDSTORMS
EV3 using the genimage tool.
The default kernel config had to be modifed to add support for squashfs
and to add a ram disk.
Signed-off-by: David Lechner <david@lechnology.com>
---
board/lego/ev3/genimage.cfg | 57 ++++++++
board/lego/ev3/linux_defconfig | 291 +++++++++++++++++++++++++++++++++++++++++
board/lego/ev3/post-image.sh | 14 ++
board/lego/ev3/readme.txt | 80 +++--------
configs/lego_ev3_defconfig | 8 +-
5 files changed, 386 insertions(+), 64 deletions(-)
create mode 100644 board/lego/ev3/genimage.cfg
create mode 100644 board/lego/ev3/linux_defconfig
create mode 100755 board/lego/ev3/post-image.sh
diff --git a/board/lego/ev3/genimage.cfg b/board/lego/ev3/genimage.cfg
new file mode 100644
index 0000000..6b8546c
--- /dev/null
+++ b/board/lego/ev3/genimage.cfg
@@ -0,0 +1,57 @@
+# LEGO MINDSTORMS EV3 can boot from a 16MB flash or from a microSD card.
+# The U-Boot bootloader from the flash is always used, even when booting
+# from a microSD card.
+
+# The Flash image
+
+flash nor-16M-256 {
+ pebsize = 4096
+ numpebs = 4096
+ minimum-io-unit-size = 256
+}
+
+image flash.bin {
+ flash {
+ }
+ flashtype = "nor-16M-256"
+ partition uboot {
+ image = "u-boot.bin"
+ size = 320K
+ }
+ partition uimage {
+ image = "uImage"
+ size = 3M
+ offset = 0x50000
+ }
+ partition rootfs {
+ image = "rootfs.squashfs"
+ size = 9600K
+ offset = 0x350000
+ }
+}
+
+# The SD card image
+
+image boot.vfat {
+ vfat {
+ files = {
+ "uImage"
+ }
+ }
+ size = 16M
+}
+
+image sdcard.img {
+ hdimage {
+ }
+ partition boot {
+ partition-type = 0xC
+ bootable = "true"
+ image = "boot.vfat"
+ offset = 4M
+ }
+ partition rootfs {
+ partition-type = 0x83
+ image = "rootfs.ext2"
+ }
+}
diff --git a/board/lego/ev3/linux_defconfig b/board/lego/ev3/linux_defconfig
new file mode 100644
index 0000000..998e6da
--- /dev/null
+++ b/board/lego/ev3/linux_defconfig
@@ -0,0 +1,291 @@
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_FHANDLE=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_CGROUPS=y
+CONFIG_NAMESPACES=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_RD_BZIP2 is not set
+# CONFIG_RD_LZMA is not set
+# CONFIG_RD_XZ is not set
+# CONFIG_RD_LZO is not set
+# CONFIG_RD_LZ4 is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_EMBEDDED=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+# CONFIG_BLK_DEV_BSG is not set
+CONFIG_PARTITION_ADVANCED=y
+# CONFIG_EFI_PARTITION is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+CONFIG_ARCH_DAVINCI=y
+CONFIG_ARCH_DAVINCI_DA850=y
+# CONFIG_MACH_DA8XX_DT is not set
+CONFIG_MACH_DAVINCI_LEGOEV3=y
+CONFIG_LEGOEV3_FIQ=y
+CONFIG_PREEMPT=y
+CONFIG_AEABI=y
+CONFIG_ZSMALLOC=y
+CONFIG_PGTABLE_MAPPING=y
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_CPU_IDLE=y
+# CONFIG_SUSPEND is not set
+CONFIG_PM=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_IP_PNP_RARP=y
+# CONFIG_IPV6 is not set
+CONFIG_NETFILTER=y
+CONFIG_NF_CONNTRACK=m
+CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
+CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
+CONFIG_NETFILTER_XT_MATCH_NFACCT=m
+CONFIG_NF_CONNTRACK_IPV4=m
+CONFIG_NF_NAT_IPV4=m
+CONFIG_IP_NF_IPTABLES=m
+CONFIG_BRIDGE=m
+CONFIG_BT=y
+CONFIG_BT_RFCOMM=m
+CONFIG_BT_RFCOMM_TTY=y
+CONFIG_BT_BNEP=y
+CONFIG_BT_HIDP=m
+CONFIG_BT_HCIBTUSB=m
+CONFIG_BT_HCIUART=y
+CONFIG_BT_HCIUART_H4=y
+CONFIG_BT_HCIUART_BCSP=y
+CONFIG_BT_HCIUART_LL=y
+CONFIG_CFG80211=m
+CONFIG_MAC80211=m
+CONFIG_MAC80211_DEBUGFS=y
+CONFIG_MAC80211_DEBUG_MENU=y
+CONFIG_RFKILL=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_STANDALONE is not set
+# CONFIG_FIRMWARE_IN_KERNEL is not set
+CONFIG_MTD=y
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_BLOCK=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_LOOP_MIN_COUNT=4
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=1
+CONFIG_BLK_DEV_RAM_SIZE=32768
+CONFIG_EEPROM_AT24=y
+CONFIG_EEPROM_93CX6=y
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_DEV_SR=m
+CONFIG_CHR_DEV_SG=y
+CONFIG_NETDEVICES=y
+# CONFIG_ETHERNET is not set
+CONFIG_USB_PEGASUS=m
+CONFIG_USB_RTL8150=m
+CONFIG_USB_NET_CDC_EEM=m
+# CONFIG_USB_NET_NET1080 is not set
+CONFIG_USB_IPHETH=m
+CONFIG_USB_ZD1201=m
+CONFIG_USB_NET_RNDIS_WLAN=m
+CONFIG_RTL8187=m
+CONFIG_ATH_CARDS=m
+CONFIG_ATH9K_HTC=m
+CONFIG_AR5523=m
+CONFIG_RT2X00=m
+CONFIG_RT2500USB=m
+CONFIG_RT73USB=m
+CONFIG_RT2800USB=m
+CONFIG_RT2800USB_RT3573=y
+CONFIG_RT2800USB_RT53XX=y
+CONFIG_RT2800USB_RT55XX=y
+CONFIG_RT2800USB_UNKNOWN=y
+CONFIG_RTL8192CU=m
+# CONFIG_INPUT_MOUSEDEV is not set
+CONFIG_INPUT_EVDEV=y
+CONFIG_KEYBOARD_GPIO=y
+CONFIG_KEYBOARD_GPIO_POLLED=y
+CONFIG_KEYBOARD_XTKBD=m
+# CONFIG_INPUT_MOUSE is not set
+CONFIG_INPUT_JOYSTICK=y
+CONFIG_JOYSTICK_XPAD=m
+CONFIG_JOYSTICK_XPAD_FF=y
+CONFIG_JOYSTICK_XPAD_LEDS=y
+CONFIG_INPUT_MISC=y
+CONFIG_INPUT_UINPUT=m
+# CONFIG_LEGACY_PTYS is not set
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=3
+CONFIG_SERIAL_8250_RUNTIME_UARTS=3
+CONFIG_SERIAL_SUART_OMAPL_PRU=m
+CONFIG_TTY_PRINTK=y
+CONFIG_HW_RANDOM=y
+CONFIG_I2C=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_DAVINCI=y
+CONFIG_SPI=y
+CONFIG_SPI_DAVINCI=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_PCA953X=y
+CONFIG_GPIO_PCF857X=m
+CONFIG_HWMON=m
+CONFIG_SENSORS_LM75=m
+CONFIG_SENSORS_PCF8591=m
+CONFIG_WATCHDOG=y
+CONFIG_DAVINCI_WATCHDOG=y
+CONFIG_SSB=m
+CONFIG_TPS6507X=m
+CONFIG_MEDIA_SUPPORT=m
+CONFIG_MEDIA_CAMERA_SUPPORT=y
+CONFIG_MEDIA_USB_SUPPORT=y
+CONFIG_USB_VIDEO_CLASS=m
+CONFIG_USB_STV06XX=m
+CONFIG_USB_GSPCA_SPCA561=m
+CONFIG_FB=y
+CONFIG_FB_ST7586=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+# CONFIG_LOGO_LINUX_CLUT224 is not set
+CONFIG_SOUND=m
+CONFIG_SND=m
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_HRTIMER=m
+# CONFIG_SND_VERBOSE_PROCFS is not set
+CONFIG_SND_VIRMIDI=m
+CONFIG_SND_USB_AUDIO=m
+CONFIG_HID_BATTERY_STRENGTH=y
+CONFIG_HIDRAW=y
+CONFIG_HID_SONY=m
+CONFIG_SONY_FF=y
+CONFIG_HID_WIIMOTE=m
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_MON=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_ACM=m
+CONFIG_USB_STORAGE=y
+CONFIG_USBIP_CORE=m
+CONFIG_USBIP_VHCI_HCD=m
+CONFIG_USBIP_HOST=m
+CONFIG_USB_MUSB_HDRC=y
+CONFIG_USB_MUSB_GADGET=y
+CONFIG_USB_MUSB_DA8XX=y
+CONFIG_MUSB_PIO_ONLY=y
+CONFIG_USB_SERIAL=m
+CONFIG_USB_SERIAL_CP210X=m
+CONFIG_USB_SERIAL_FTDI_SIO=m
+CONFIG_USB_SERIAL_PL2303=m
+CONFIG_USB_LEGOTOWER=m
+CONFIG_NOP_USB_XCEIV=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_CONFIGFS=m
+CONFIG_USB_CONFIGFS_SERIAL=y
+CONFIG_USB_CONFIGFS_ACM=y
+CONFIG_USB_CONFIGFS_OBEX=y
+CONFIG_USB_CONFIGFS_NCM=y
+CONFIG_USB_CONFIGFS_ECM=y
+CONFIG_USB_CONFIGFS_ECM_SUBSET=y
+CONFIG_USB_CONFIGFS_RNDIS=y
+CONFIG_USB_CONFIGFS_EEM=y
+CONFIG_USB_CONFIGFS_MASS_STORAGE=y
+CONFIG_USB_CONFIGFS_F_FS=y
+CONFIG_USB_CONFIGFS_F_UAC1=y
+CONFIG_USB_CONFIGFS_F_UAC2=y
+CONFIG_USB_CONFIGFS_F_MIDI=y
+CONFIG_USB_CONFIGFS_F_HID=y
+CONFIG_USB_CONFIGFS_F_UVC=y
+CONFIG_USB_CONFIGFS_F_PRINTER=y
+CONFIG_USB_ETH=m
+CONFIG_USB_ETH_EEM=y
+CONFIG_USB_MASS_STORAGE=m
+CONFIG_USB_G_SERIAL=m
+CONFIG_USB_MIDI_GADGET=m
+CONFIG_USB_CDC_COMPOSITE=m
+CONFIG_MMC=y
+CONFIG_MMC_DAVINCI=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_PWM=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
+CONFIG_LEDS_TRIGGER_TRANSIENT=y
+CONFIG_RTC_CLASS=y
+# CONFIG_RTC_HCTOSYS is not set
+CONFIG_RTC_DRV_DS1307=m
+CONFIG_RTC_DRV_OMAP=y
+CONFIG_DMADEVICES=y
+CONFIG_TI_EDMA=y
+CONFIG_STAGING=y
+CONFIG_R8712U=y
+CONFIG_FB_TFT=y
+CONFIG_FB_TFT_ST7735R=y
+CONFIG_PWM=y
+CONFIG_PWM_GPIO=y
+CONFIG_PWM_TIECAP=y
+CONFIG_PWM_TIEHRPWM=y
+CONFIG_EXT2_FS=m
+CONFIG_EXT3_FS=m
+CONFIG_EXT3_FS_POSIX_ACL=y
+CONFIG_EXT4_FS=y
+CONFIG_AUTOFS4_FS=y
+CONFIG_FUSE_FS=m
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_TMPFS=y
+CONFIG_CRAMFS=y
+CONFIG_SQUASHFS=y
+CONFIG_SQUASHFS_LZ4=y
+CONFIG_SQUASHFS_LZO=y
+CONFIG_SQUASHFS_XZ=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
+CONFIG_NFS_V4=y
+CONFIG_NFS_V4_1=y
+CONFIG_ROOT_NFS=y
+CONFIG_NFSD=m
+CONFIG_NFSD_V3_ACL=y
+CONFIG_NFSD_V4=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ASCII=m
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_UTF8=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_PREEMPT is not set
+# CONFIG_FTRACE is not set
+# CONFIG_ARM_UNWIND is not set
+CONFIG_CRYPTO_CCM=y
+CONFIG_CRYPTO_CBC=y
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_ARC4=y
+CONFIG_CRYPTO_DES=y
+# CONFIG_CRYPTO_HW is not set
+CONFIG_CRC_CCITT=y
+CONFIG_CRC_T10DIF=m
+CONFIG_CRC_ITU_T=y
+CONFIG_FONTS=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_6x11=y
+CONFIG_FONT_MINI_4x6=y
diff --git a/board/lego/ev3/post-image.sh b/board/lego/ev3/post-image.sh
new file mode 100755
index 0000000..81626dc
--- /dev/null
+++ b/board/lego/ev3/post-image.sh
@@ -0,0 +1,14 @@
+#!/bin/sh
+
+BOARD_DIR="$(dirname $0)"
+GENIMAGE_CFG="${BOARD_DIR}/genimage.cfg"
+GENIMAGE_TMP="${BUILD_DIR}/genimage.tmp"
+
+rm -rf "${GENIMAGE_TMP}"
+
+genimage \
+ --rootpath "${TARGET_DIR}" \
+ --tmppath "${GENIMAGE_TMP}" \
+ --inputpath "${BINARIES_DIR}" \
+ --outputpath "${BINARIES_DIR}" \
+ --config "${GENIMAGE_CFG}"
diff --git a/board/lego/ev3/readme.txt b/board/lego/ev3/readme.txt
index 7d9ec4f..878dd2e 100644
--- a/board/lego/ev3/readme.txt
+++ b/board/lego/ev3/readme.txt
@@ -25,9 +25,13 @@ How it works
Boot process :
--------------
-The u-boot on-board the EV3 brick has provision to boot a Linux kernel from the
-external ?SD card. It will try to load a uImage from the first ?SD card
-partition, which must be formatted with a FAT filesystem.
+The EV3 boots from an EEPROM. This loads whatever is on the built-in 16MB flash
+(usually U-Boot) and runs it. The U-Boot from the official LEGO firmware and
+mainline U-Boot will attempt to boot a Linux kernel from the external ?SD card.
+It will try to load a uImage (and optional boot.scr) from the first ?SD card
+partition, which must be formatted with a FAT filesystem. If no ?SD is found or
+it does not contain a uImage file, then the EV3 will boot the uImage from from
+the built-in 16MB flash.
How to build it
===============
@@ -54,74 +58,26 @@ Result of the build
After building, you should obtain this tree:
output/images/
+ ??? boot.vfat
+ ??? flash.bin
??? rootfs.ext2
??? rootfs.ext3 -> rootfs.ext2
+ ??? rootfs.squashfs
+ ??? sdcard.img
+ ??? u-boot.bin
??? uImage
-Prepare your SDcard
-===================
-
-The following ?SD card layout is recommended:
-
-- First partition formatted with a FAT filesystem, containing the uImage.
-- Second partition formatted as ext2 or ext3, containing the root filesystem.
-
-Create the SDcard partition table
-----------------------------------
-
-Determine the device associated to the SD card :
-
- $ cat /proc/partitions
-
-Let's assume it is /dev/mmcblk0 :
-
- $ sudo fdisk /dev/mmcblk0
-
-Delete all previous partitions by creating a new disklabel with 'o', then
-create the new partition table, using these options, pressing enter after each
-one:
-
- * n p 1 2048 +10M t c
- * n p 2 22528 +256M
-
-Using the 'p' option, the SD card's partition must look like this :
-
-Device Boot Start End Blocks Id System
-/dev/mmcblk0p1 2048 22527 10240 c W95 FAT32 (LBA)
-/dev/mmcblk0p2 22528 546815 262144 83 Linux
-
-Then write the partition table using 'w' and exit.
-
-Make partition one a DOS partition :
-
- $ sudo mkfs.vfat /dev/mmcblk0p1
-
-Install the binaries to the SDcard
-----------------------------------
-
-Remember your binaries are located in output/images/, go inside that directory :
-
- $ cd output/images
-
-Copy the Linux kernel:
-
- $ sudo mkdir /mnt/sdcard
- $ sudo mount /dev/mmcblk0p1 /mnt/sdcard
- $ sudo cp uImage /mnt/sdcard
- $ sudo umount /mnt/sdcard
-
-Copy the rootfs :
-
- $ sudo dd if=rootfs.ext3 of=/dev/mmcblk0p2 bs=1M
- $ sync
+Installation
+============
-It's Done!
+You can use either flash.bin or the sdcard.img. To load flash.bin, use the
+official Lego Mindstorms EV3 programming software firmware update tool to load
+the image. To use sdcard.img, use a disk writing tool such as Etcher or dd to
+write the image to the ?SD card.
Finish
======
-Eject your ?SD card, insert it in your Lego EV3, and power it up.
-
To have a serial console, you will need a proper USB to Lego serial port
adapter plugged into the EV3 sensors port 1.
See:
diff --git a/configs/lego_ev3_defconfig b/configs/lego_ev3_defconfig
index bf425f1..e96a689 100644
--- a/configs/lego_ev3_defconfig
+++ b/configs/lego_ev3_defconfig
@@ -8,7 +8,7 @@ BR2_GLOBAL_PATCH_DIR="board/lego/ev3/patches"
# system
BR2_TARGET_GENERIC_GETTY=y
BR2_TARGET_GENERIC_GETTY_PORT="ttyS1"
-
+BR2_ROOTFS_POST_IMAGE_SCRIPT="board/lego/ev3/post-image.sh"
# Linux headers same as kernel, a 4.4 series
BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_4=y
@@ -17,15 +17,19 @@ BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_CUSTOM_GIT=y
BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/ev3dev/ev3dev-kernel.git"
BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="v4.4.19-15-ev3dev-ev3_1"
-BR2_LINUX_KERNEL_DEFCONFIG="ev3dev"
+BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/lego/ev3/linux_defconfig"
BR2_LINUX_KERNEL_UIMAGE=y
# filesystem
BR2_TARGET_ROOTFS_EXT2=y
BR2_TARGET_ROOTFS_EXT2_3=y
+BR2_TARGET_ROOTFS_SQUASHFS=y
+BR2_TARGET_ROOTFS_SQUASHFS4_XZ=y
# BR2_TARGET_ROOTFS_TAR is not set
# U-Boot
BR2_TARGET_UBOOT=y
BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
BR2_TARGET_UBOOT_BOARD_DEFCONFIG="legoev3"
+BR2_PACKAGE_HOST_GENIMAGE=y
--
2.7.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [Buildroot] [PATCH 3/4] linux: add ev3dev extension
2016-10-30 23:32 [Buildroot] [PATCH 0/4] LEGO MINDSTORMS EV3 Updates David Lechner
2016-10-30 23:32 ` [Buildroot] [PATCH 1/4] configs/lego_ev3: add U-Boot support David Lechner
2016-10-30 23:32 ` [Buildroot] [PATCH 2/4] board/lego/ev3: Create images using genimage David Lechner
@ 2016-10-30 23:32 ` David Lechner
2016-11-01 15:09 ` Thomas Petazzoni
2016-10-30 23:32 ` [Buildroot] [PATCH 4/4] board/lego/ev3: Use ev3dev linux ext for ev3dev drivers David Lechner
3 siblings, 1 reply; 12+ messages in thread
From: David Lechner @ 2016-10-30 23:32 UTC (permalink / raw)
To: buildroot
This adds an ev3dev extension that provides linux kernel drivers for LEGO
MINDSTORMS EV3 from the ev3dev project.
Signed-off-by: David Lechner <david@lechnology.com>
---
linux/Config.ext.in | 10 ++++++++++
linux/linux-ext-ev3dev.mk | 13 +++++++++++++
package/Config.in | 1 +
package/ev3dev/Config.in | 12 ++++++++++++
package/ev3dev/ev3dev.mk | 11 +++++++++++
package/ev3dev/lego-linux-drivers.hash | 2 ++
support/scripts/pkg-stats | 1 +
7 files changed, 50 insertions(+)
create mode 100644 linux/linux-ext-ev3dev.mk
create mode 100644 package/ev3dev/Config.in
create mode 100644 package/ev3dev/ev3dev.mk
create mode 100644 package/ev3dev/lego-linux-drivers.hash
diff --git a/linux/Config.ext.in b/linux/Config.ext.in
index 5d5e7ef..552d482 100644
--- a/linux/Config.ext.in
+++ b/linux/Config.ext.in
@@ -46,6 +46,16 @@ config BR2_LINUX_KERNEL_EXT_RTAI
RTAI Kernel part.
#-------------------------------------------------------------------------------
+# ev3dev
+config BR2_LINUX_KERNEL_EXT_EV3DEV
+ bool "ev3dev drivers"
+ select BR2_PACKAGE_EV3DEV
+ help
+ Linux drivers for LEGO MINDSTORMS EV3 from the ev3dev project.
+
+ https://github.com/ev3dev/lego-linux-drivers
+
+#-------------------------------------------------------------------------------
# fbtft
config BR2_LINUX_KERNEL_EXT_FBTFT
bool "FB TFT drivers"
diff --git a/linux/linux-ext-ev3dev.mk b/linux/linux-ext-ev3dev.mk
new file mode 100644
index 0000000..23e4c8d
--- /dev/null
+++ b/linux/linux-ext-ev3dev.mk
@@ -0,0 +1,13 @@
+################################################################################
+# Linux ev3dev extensions
+#
+# Patch the linux kernel with ev3dev extension
+################################################################################
+
+LINUX_EXTENSIONS += ev3dev
+
+define EV3DEV_PREPARE_KERNEL
+ dest=drivers/lego ; \
+ mkdir -p $(LINUX_DIR)/$${dest}; \
+ cp -dpfr $(EV3DEV_DIR)/* $(LINUX_DIR)/$${dest}/
+endef
diff --git a/package/Config.in b/package/Config.in
index 0f6260b..78a5029 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -369,6 +369,7 @@ endmenu
source "package/edid-decode/Config.in"
source "package/eeprog/Config.in"
source "package/eudev/Config.in"
+ source "package/ev3dev/Config.in"
source "package/evemu/Config.in"
source "package/evtest/Config.in"
source "package/fan-ctrl/Config.in"
diff --git a/package/ev3dev/Config.in b/package/ev3dev/Config.in
new file mode 100644
index 0000000..2509f0c
--- /dev/null
+++ b/package/ev3dev/Config.in
@@ -0,0 +1,12 @@
+# Prompt-less option, because this package is not doing anything except
+# downloading the ev3dev driver sources. The real work is done by a Linux
+# extension.
+config BR2_PACKAGE_EV3DEV
+ bool
+ depends on BR2_LINUX_KERNEL
+ help
+ Linux drivers for LEGO MINDSTORMS EV3
+
+ This is only the download helper for the kernel patch.
+
+ https://github.com/ev3dev/lego-linux-drivers
diff --git a/package/ev3dev/ev3dev.mk b/package/ev3dev/ev3dev.mk
new file mode 100644
index 0000000..653387b
--- /dev/null
+++ b/package/ev3dev/ev3dev.mk
@@ -0,0 +1,11 @@
+################################################################################
+#
+# ev3dev
+#
+################################################################################
+
+EV3DEV_VERSION = 0e551eb25ae8600c1f178814781bfb42dc835496
+EV3DEV_SITE = $(call github,ev3dev,lego-linux-drivers,$(EV3DEV_VERSION))
+EV3DEV_LICENSE = GPLv2
+
+$(eval $(generic-package))
diff --git a/package/ev3dev/lego-linux-drivers.hash b/package/ev3dev/lego-linux-drivers.hash
new file mode 100644
index 0000000..cc48f65
--- /dev/null
+++ b/package/ev3dev/lego-linux-drivers.hash
@@ -0,0 +1,2 @@
+# locally computed
+sha256 9d2740b348c8d43e7e15fedc4cec99bf351a3a2ba8691f2a07c439a9c034bc04 lego-linux-drivers-0e551eb25ae8600c1f178814781bfb42dc835496.tar.gz
diff --git a/support/scripts/pkg-stats b/support/scripts/pkg-stats
index cc3bef4..d0a6fe6 100755
--- a/support/scripts/pkg-stats
+++ b/support/scripts/pkg-stats
@@ -94,6 +94,7 @@ for i in $(find boot/ linux/ package/ -name '*.mk' | sort) ; do
if test \
$i = "boot/common.mk" -o \
+ $i = "linux/linux-ext-ev3dev.mk" -o \
$i = "linux/linux-ext-fbtft.mk" -o \
$i = "linux/linux-ext-xenomai.mk" -o \
$i = "linux/linux-ext-rtai.mk" -o \
--
2.7.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [Buildroot] [PATCH 4/4] board/lego/ev3: Use ev3dev linux ext for ev3dev drivers
2016-10-30 23:32 [Buildroot] [PATCH 0/4] LEGO MINDSTORMS EV3 Updates David Lechner
` (2 preceding siblings ...)
2016-10-30 23:32 ` [Buildroot] [PATCH 3/4] linux: add ev3dev extension David Lechner
@ 2016-10-30 23:32 ` David Lechner
2016-11-01 15:10 ` Thomas Petazzoni
3 siblings, 1 reply; 12+ messages in thread
From: David Lechner @ 2016-10-30 23:32 UTC (permalink / raw)
To: buildroot
This uses the ev3dev linux extension to compile the ev3dev drivers for
LEGO MINDSTORMS EV3.
Signed-off-by: David Lechner <david@lechnology.com>
---
board/lego/ev3/linux_defconfig | 10 +++++++--
.../0001-Create-empty-drivers-lego-Kconfig.patch | 24 ----------------------
board/lego/ev3/readme.txt | 4 ++--
configs/lego_ev3_defconfig | 4 +---
4 files changed, 11 insertions(+), 31 deletions(-)
delete mode 100644 board/lego/ev3/patches/linux/0001-Create-empty-drivers-lego-Kconfig.patch
diff --git a/board/lego/ev3/linux_defconfig b/board/lego/ev3/linux_defconfig
index 998e6da..c26a241 100644
--- a/board/lego/ev3/linux_defconfig
+++ b/board/lego/ev3/linux_defconfig
@@ -80,6 +80,12 @@ CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
# CONFIG_FIRMWARE_IN_KERNEL is not set
+CONFIG_LEGO_DRIVERS=y
+CONFIG_LEGOEV3_I2C=y
+CONFIG_LEGOEV3_BATTERY=y
+CONFIG_LEGOEV3_SOUND=y
+# CONFIG_LEGO_USER_DEVICES is not set
+CONFIG_WEDO=m
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_BLOCK=y
@@ -164,8 +170,8 @@ CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set
-CONFIG_SOUND=m
-CONFIG_SND=m
+CONFIG_SOUND=y
+CONFIG_SND=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_HRTIMER=m
diff --git a/board/lego/ev3/patches/linux/0001-Create-empty-drivers-lego-Kconfig.patch b/board/lego/ev3/patches/linux/0001-Create-empty-drivers-lego-Kconfig.patch
deleted file mode 100644
index 614d53d..0000000
--- a/board/lego/ev3/patches/linux/0001-Create-empty-drivers-lego-Kconfig.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-From 72c5727488f10160abfadcc77dd9763c4408b5e9 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Vincent=20Stehl=C3=A9?= <vincent.stehle@laposte.net>
-Date: Sat, 15 Oct 2016 16:23:31 +0200
-Subject: [PATCH] Create empty drivers/lego/Kconfig
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Signed-off-by: Vincent Stehl? <vincent.stehle@laposte.net>
----
- drivers/lego/Kconfig | 1 +
- 1 file changed, 1 insertion(+)
- create mode 100644 drivers/lego/Kconfig
-
-diff --git a/drivers/lego/Kconfig b/drivers/lego/Kconfig
-new file mode 100644
-index 0000000..d7cbf4f
---- /dev/null
-+++ b/drivers/lego/Kconfig
-@@ -0,0 +1 @@
-+# Empty Kconfig just to make source from drivers/Kconfig succeed.
---
-2.9.3
-
diff --git a/board/lego/ev3/readme.txt b/board/lego/ev3/readme.txt
index 878dd2e..b1cfecf 100644
--- a/board/lego/ev3/readme.txt
+++ b/board/lego/ev3/readme.txt
@@ -4,8 +4,7 @@ Intro
=====
This is the buildroot basic board support for the Lego Mindstorms EV3
-programmable brick. No support for sensors and drivers is provided for the
-moment.
+programmable brick.
The Lego Mindstorms EV3 brick comprises a Texas Instruments AM1808 SoC, with
an ARM 926EJ-S main processor running at 300 MHz.
@@ -17,6 +16,7 @@ See:
The buildroot configuration uses the Linux kernel of the ev3dev project.
See:
- https://github.com/ev3dev/ev3-kernel/
+- https://github.com/ev3dev/lego-linux-drivers/
- http://www.ev3dev.org/
How it works
diff --git a/configs/lego_ev3_defconfig b/configs/lego_ev3_defconfig
index e96a689..1b4a26f 100644
--- a/configs/lego_ev3_defconfig
+++ b/configs/lego_ev3_defconfig
@@ -2,9 +2,6 @@
BR2_arm=y
BR2_arm926t=y
-# patches
-BR2_GLOBAL_PATCH_DIR="board/lego/ev3/patches"
-
# system
BR2_TARGET_GENERIC_GETTY=y
BR2_TARGET_GENERIC_GETTY_PORT="ttyS1"
@@ -20,6 +17,7 @@ BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="v4.4.19-15-ev3dev-ev3_1"
BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/lego/ev3/linux_defconfig"
BR2_LINUX_KERNEL_UIMAGE=y
+BR2_LINUX_KERNEL_EXT_EV3DEV=y
# filesystem
BR2_TARGET_ROOTFS_EXT2=y
--
2.7.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [Buildroot] [PATCH 2/4] board/lego/ev3: Create images using genimage
2016-10-30 23:32 ` [Buildroot] [PATCH 2/4] board/lego/ev3: Create images using genimage David Lechner
@ 2016-10-31 4:19 ` Baruch Siach
2016-10-31 15:57 ` David Lechner
2016-11-01 15:04 ` Thomas Petazzoni
2016-11-01 18:54 ` [Buildroot] <DKIM> " Vincent Stehlé
2 siblings, 1 reply; 12+ messages in thread
From: Baruch Siach @ 2016-10-31 4:19 UTC (permalink / raw)
To: buildroot
Hi David,
On Sun, Oct 30, 2016 at 06:32:24PM -0500, David Lechner wrote:
> This adds a script to create SD card and flash images for LEGO MINDSTORMS
> EV3 using the genimage tool.
>
> The default kernel config had to be modifed to add support for squashfs
> and to add a ram disk.
>
> Signed-off-by: David Lechner <david@lechnology.com>
> ---
> board/lego/ev3/genimage.cfg | 57 ++++++++
> board/lego/ev3/linux_defconfig | 291 +++++++++++++++++++++++++++++++++++++++++
> board/lego/ev3/post-image.sh | 14 ++
> board/lego/ev3/readme.txt | 80 +++--------
> configs/lego_ev3_defconfig | 8 +-
> 5 files changed, 386 insertions(+), 64 deletions(-)
> create mode 100644 board/lego/ev3/genimage.cfg
> create mode 100644 board/lego/ev3/linux_defconfig
> create mode 100755 board/lego/ev3/post-image.sh
[...]
> diff --git a/board/lego/ev3/linux_defconfig b/board/lego/ev3/linux_defconfig
> new file mode 100644
> index 0000000..998e6da
> --- /dev/null
> +++ b/board/lego/ev3/linux_defconfig
> @@ -0,0 +1,291 @@
[...]
> +CONFIG_EXT2_FS=m
> +CONFIG_EXT3_FS=m
ext3 was removed in kernel version 4.3, while lego_ev3_defconfig uses kernel
version 4.4. Under which kernel have you generated this defconfig?
You may try using a config fragment file to add support for additional kernel
features. See pc_x86_64_bios_defconfig, for example.
> diff --git a/configs/lego_ev3_defconfig b/configs/lego_ev3_defconfig
> index bf425f1..e96a689 100644
> --- a/configs/lego_ev3_defconfig
> +++ b/configs/lego_ev3_defconfig
> @@ -8,7 +8,7 @@ BR2_GLOBAL_PATCH_DIR="board/lego/ev3/patches"
> # system
> BR2_TARGET_GENERIC_GETTY=y
> BR2_TARGET_GENERIC_GETTY_PORT="ttyS1"
> -
> +BR2_ROOTFS_POST_IMAGE_SCRIPT="board/lego/ev3/post-image.sh"
> # Linux headers same as kernel, a 4.4 series
> BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_4=y
>
> @@ -17,15 +17,19 @@ BR2_LINUX_KERNEL=y
> BR2_LINUX_KERNEL_CUSTOM_GIT=y
> BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/ev3dev/ev3dev-kernel.git"
> BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="v4.4.19-15-ev3dev-ev3_1"
> -BR2_LINUX_KERNEL_DEFCONFIG="ev3dev"
> +BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
> +BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/lego/ev3/linux_defconfig"
> BR2_LINUX_KERNEL_UIMAGE=y
>
> # filesystem
> BR2_TARGET_ROOTFS_EXT2=y
> BR2_TARGET_ROOTFS_EXT2_3=y
> +BR2_TARGET_ROOTFS_SQUASHFS=y
> +BR2_TARGET_ROOTFS_SQUASHFS4_XZ=y
> # BR2_TARGET_ROOTFS_TAR is not set
>
> # U-Boot
> BR2_TARGET_UBOOT=y
> BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
> BR2_TARGET_UBOOT_BOARD_DEFCONFIG="legoev3"
> +BR2_PACKAGE_HOST_GENIMAGE=y
baruch
--
http://baruch.siach.name/blog/ ~. .~ Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
- baruch at tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il -
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Buildroot] [PATCH 2/4] board/lego/ev3: Create images using genimage
2016-10-31 4:19 ` Baruch Siach
@ 2016-10-31 15:57 ` David Lechner
0 siblings, 0 replies; 12+ messages in thread
From: David Lechner @ 2016-10-31 15:57 UTC (permalink / raw)
To: buildroot
On 10/30/2016 11:19 PM, Baruch Siach wrote:
> Hi David,
>
> On Sun, Oct 30, 2016 at 06:32:24PM -0500, David Lechner wrote:
>> This adds a script to create SD card and flash images for LEGO MINDSTORMS
>> EV3 using the genimage tool.
>>
>> The default kernel config had to be modifed to add support for squashfs
>> and to add a ram disk.
>>
>> Signed-off-by: David Lechner <david@lechnology.com>
>> ---
>> board/lego/ev3/genimage.cfg | 57 ++++++++
>> board/lego/ev3/linux_defconfig | 291 +++++++++++++++++++++++++++++++++++++++++
>> board/lego/ev3/post-image.sh | 14 ++
>> board/lego/ev3/readme.txt | 80 +++--------
>> configs/lego_ev3_defconfig | 8 +-
>> 5 files changed, 386 insertions(+), 64 deletions(-)
>> create mode 100644 board/lego/ev3/genimage.cfg
>> create mode 100644 board/lego/ev3/linux_defconfig
>> create mode 100755 board/lego/ev3/post-image.sh
>
> [...]
>
>> diff --git a/board/lego/ev3/linux_defconfig b/board/lego/ev3/linux_defconfig
>> new file mode 100644
>> index 0000000..998e6da
>> --- /dev/null
>> +++ b/board/lego/ev3/linux_defconfig
>> @@ -0,0 +1,291 @@
> [...]
>> +CONFIG_EXT2_FS=m
>> +CONFIG_EXT3_FS=m
>
> ext3 was removed in kernel version 4.3, while lego_ev3_defconfig uses kernel
> version 4.4. Under which kernel have you generated this defconfig?
4.4. There is still a kernel option for ext3 that does nothing (for
backwards compatibility according to the help text).
>
> You may try using a config fragment file to add support for additional kernel
> features. See pc_x86_64_bios_defconfig, for example.
That is much better. Thanks for the idea.
>
>> diff --git a/configs/lego_ev3_defconfig b/configs/lego_ev3_defconfig
>> index bf425f1..e96a689 100644
>> --- a/configs/lego_ev3_defconfig
>> +++ b/configs/lego_ev3_defconfig
>> @@ -8,7 +8,7 @@ BR2_GLOBAL_PATCH_DIR="board/lego/ev3/patches"
>> # system
>> BR2_TARGET_GENERIC_GETTY=y
>> BR2_TARGET_GENERIC_GETTY_PORT="ttyS1"
>> -
>> +BR2_ROOTFS_POST_IMAGE_SCRIPT="board/lego/ev3/post-image.sh"
>> # Linux headers same as kernel, a 4.4 series
>> BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_4=y
>>
>> @@ -17,15 +17,19 @@ BR2_LINUX_KERNEL=y
>> BR2_LINUX_KERNEL_CUSTOM_GIT=y
>> BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/ev3dev/ev3dev-kernel.git"
>> BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="v4.4.19-15-ev3dev-ev3_1"
>> -BR2_LINUX_KERNEL_DEFCONFIG="ev3dev"
>> +BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
>> +BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/lego/ev3/linux_defconfig"
>> BR2_LINUX_KERNEL_UIMAGE=y
>>
>> # filesystem
>> BR2_TARGET_ROOTFS_EXT2=y
>> BR2_TARGET_ROOTFS_EXT2_3=y
>> +BR2_TARGET_ROOTFS_SQUASHFS=y
>> +BR2_TARGET_ROOTFS_SQUASHFS4_XZ=y
>> # BR2_TARGET_ROOTFS_TAR is not set
>>
>> # U-Boot
>> BR2_TARGET_UBOOT=y
>> BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
>> BR2_TARGET_UBOOT_BOARD_DEFCONFIG="legoev3"
>> +BR2_PACKAGE_HOST_GENIMAGE=y
>
> baruch
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Buildroot] [PATCH 1/4] configs/lego_ev3: add U-Boot support
2016-10-30 23:32 ` [Buildroot] [PATCH 1/4] configs/lego_ev3: add U-Boot support David Lechner
@ 2016-11-01 15:02 ` Thomas Petazzoni
0 siblings, 0 replies; 12+ messages in thread
From: Thomas Petazzoni @ 2016-11-01 15:02 UTC (permalink / raw)
To: buildroot
Hello,
Thanks for this patch series updating the lego_ev3 support, much appreciated!
On Sun, 30 Oct 2016 18:32:23 -0500, David Lechner wrote:
> This adds U-Boot configuration for LEGO MINDSTORMS EV3. U-Boot has
> had support for LEGO MINDSTORMS EV3 since v2016.05.
>
> Signed-off-by: David Lechner <david@lechnology.com>
> ---
> configs/lego_ev3_defconfig | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/configs/lego_ev3_defconfig b/configs/lego_ev3_defconfig
> index 1ddc4f9..bf425f1 100644
> --- a/configs/lego_ev3_defconfig
> +++ b/configs/lego_ev3_defconfig
> @@ -24,3 +24,8 @@ BR2_LINUX_KERNEL_UIMAGE=y
> BR2_TARGET_ROOTFS_EXT2=y
> BR2_TARGET_ROOTFS_EXT2_3=y
> # BR2_TARGET_ROOTFS_TAR is not set
> +
> +# U-Boot
> +BR2_TARGET_UBOOT=y
> +BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
> +BR2_TARGET_UBOOT_BOARD_DEFCONFIG="legoev3"
You should use a specific U-Boot version, so that we're sure we'll
continue to use the same tested version over time. See other defconfigs:
wandboard_defconfig:BR2_TARGET_UBOOT=y
wandboard_defconfig:BR2_TARGET_UBOOT_BOARDNAME="wandboard"
wandboard_defconfig:BR2_TARGET_UBOOT_CUSTOM_VERSION=y
wandboard_defconfig:BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2016.09.01"
Thanks!
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Buildroot] [PATCH 2/4] board/lego/ev3: Create images using genimage
2016-10-30 23:32 ` [Buildroot] [PATCH 2/4] board/lego/ev3: Create images using genimage David Lechner
2016-10-31 4:19 ` Baruch Siach
@ 2016-11-01 15:04 ` Thomas Petazzoni
2016-11-01 18:54 ` [Buildroot] <DKIM> " Vincent Stehlé
2 siblings, 0 replies; 12+ messages in thread
From: Thomas Petazzoni @ 2016-11-01 15:04 UTC (permalink / raw)
To: buildroot
Hello,
On Sun, 30 Oct 2016 18:32:24 -0500, David Lechner wrote:
> This adds a script to create SD card and flash images for LEGO MINDSTORMS
> EV3 using the genimage tool.
>
> The default kernel config had to be modifed to add support for squashfs
> and to add a ram disk.
>
> Signed-off-by: David Lechner <david@lechnology.com>
In addition to the comment made by Baruch about using a defconfig
fragment for Linux, I have another comment, see below.
> # U-Boot
> BR2_TARGET_UBOOT=y
> BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
> BR2_TARGET_UBOOT_BOARD_DEFCONFIG="legoev3"
> +BR2_PACKAGE_HOST_GENIMAGE=y
This line probably need an additional comment above it, as it's not
U-Boot related.
But more importantly, since you're building a FAT filesystem image, you
also need:
BR2_PACKAGE_HOST_DOSFSTOOLS=y
BR2_PACKAGE_HOST_MTOOLS=y
Thanks!
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Buildroot] [PATCH 3/4] linux: add ev3dev extension
2016-10-30 23:32 ` [Buildroot] [PATCH 3/4] linux: add ev3dev extension David Lechner
@ 2016-11-01 15:09 ` Thomas Petazzoni
0 siblings, 0 replies; 12+ messages in thread
From: Thomas Petazzoni @ 2016-11-01 15:09 UTC (permalink / raw)
To: buildroot
Hello,
On Sun, 30 Oct 2016 18:32:25 -0500, David Lechner wrote:
> This adds an ev3dev extension that provides linux kernel drivers for LEGO
> MINDSTORMS EV3 from the ev3dev project.
>
> Signed-off-by: David Lechner <david@lechnology.com>
This all looks mostly good, I only have a few minor comments.
The first one is about the naming: ev3dev is really the name of the
overall project/organization, so I think the package should rather be
named ev3dev-lego-linux or ev3dev-lego-linux-drivers or
ev3dev-linux-drivers or something like this. Of course, this applies to
both the package itself and the corresponding Linux extension.
> diff --git a/linux/linux-ext-ev3dev.mk b/linux/linux-ext-ev3dev.mk
> new file mode 100644
> index 0000000..23e4c8d
> --- /dev/null
> +++ b/linux/linux-ext-ev3dev.mk
> @@ -0,0 +1,13 @@
> +################################################################################
> +# Linux ev3dev extensions
> +#
> +# Patch the linux kernel with ev3dev extension
> +################################################################################
> +
> +LINUX_EXTENSIONS += ev3dev
> +
> +define EV3DEV_PREPARE_KERNEL
> + dest=drivers/lego ; \
> + mkdir -p $(LINUX_DIR)/$${dest}; \
> + cp -dpfr $(EV3DEV_DIR)/* $(LINUX_DIR)/$${dest}/
I'm not sure using a variable for $${dest} is really useful since there
are only two instances, but if you really want to do so, please use a
make variable. Maybe:
EV3DEV_LINUX_DRIVER_DIR = $(LINUX_DIR)/drivers/lego/
define EV3DEV_PREPARE_KERNEL
mkdir -p $(EV3DEV_LINUX_DRIVER_DIR)
cp -dpfr $(EV3DEV_DIR)/* $(EV3DEV_LINUX_DRIVER_DIR)
endef
or something along those lines.
> +config BR2_PACKAGE_EV3DEV
> + bool
> + depends on BR2_LINUX_KERNEL
> + help
> + Linux drivers for LEGO MINDSTORMS EV3
> +
> + This is only the download helper for the kernel patch.
kernel extension
Thanks!
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Buildroot] [PATCH 4/4] board/lego/ev3: Use ev3dev linux ext for ev3dev drivers
2016-10-30 23:32 ` [Buildroot] [PATCH 4/4] board/lego/ev3: Use ev3dev linux ext for ev3dev drivers David Lechner
@ 2016-11-01 15:10 ` Thomas Petazzoni
0 siblings, 0 replies; 12+ messages in thread
From: Thomas Petazzoni @ 2016-11-01 15:10 UTC (permalink / raw)
To: buildroot
Hello,
On Sun, 30 Oct 2016 18:32:26 -0500, David Lechner wrote:
> This uses the ev3dev linux extension to compile the ev3dev drivers for
> LEGO MINDSTORMS EV3.
>
> Signed-off-by: David Lechner <david@lechnology.com>
This also looks good, but please use a defconfig fragment for enabling
the Linux drivers. Note that you can use several fragments: one to
enable squashfs/ramdisk, and one to enable the lego drivers. It's not
mandatory, but it can be done this way.
Thanks!
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Buildroot] <DKIM> [PATCH 2/4] board/lego/ev3: Create images using genimage
2016-10-30 23:32 ` [Buildroot] [PATCH 2/4] board/lego/ev3: Create images using genimage David Lechner
2016-10-31 4:19 ` Baruch Siach
2016-11-01 15:04 ` Thomas Petazzoni
@ 2016-11-01 18:54 ` Vincent Stehlé
2 siblings, 0 replies; 12+ messages in thread
From: Vincent Stehlé @ 2016-11-01 18:54 UTC (permalink / raw)
To: buildroot
On 10/31/2016 12:32 AM, David Lechner wrote:
> This adds a script to create SD card and flash images for LEGO MINDSTORMS
> EV3 using the genimage tool.
Hi David,
Thank you very much for your ev3 patches series!
..
> diff --git a/board/lego/ev3/readme.txt b/board/lego/ev3/readme.txt
> index 7d9ec4f..878dd2e 100644
> --- a/board/lego/ev3/readme.txt
> +++ b/board/lego/ev3/readme.txt
> @@ -25,9 +25,13 @@ How it works
> Boot process :
> --------------
>
> -The u-boot on-board the EV3 brick has provision to boot a Linux kernel from the
> -external ?SD card. It will try to load a uImage from the first ?SD card
> -partition, which must be formatted with a FAT filesystem.
> +The EV3 boots from an EEPROM. This loads whatever is on the built-in 16MB flash
> +(usually U-Boot) and runs it. The U-Boot from the official LEGO firmware and
> +mainline U-Boot will attempt to boot a Linux kernel from the external ?SD card.
> +It will try to load a uImage (and optional boot.scr) from the first ?SD card
> +partition, which must be formatted with a FAT filesystem. If no ?SD is found or
> +it does not contain a uImage file, then the EV3 will boot the uImage from from
Very minor remark: there is a duplicate "from" at the end of the line.
As Thomas mentioned already I needed to add host-dosfstools and
host-mtools for proper build, then the generated sdcard.img booted ok,
and I do see weedo.ko from the ev3dev "extra" drivers.
Thanks!
Best regards,
Vincent.
^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2016-11-01 18:54 UTC | newest]
Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-10-30 23:32 [Buildroot] [PATCH 0/4] LEGO MINDSTORMS EV3 Updates David Lechner
2016-10-30 23:32 ` [Buildroot] [PATCH 1/4] configs/lego_ev3: add U-Boot support David Lechner
2016-11-01 15:02 ` Thomas Petazzoni
2016-10-30 23:32 ` [Buildroot] [PATCH 2/4] board/lego/ev3: Create images using genimage David Lechner
2016-10-31 4:19 ` Baruch Siach
2016-10-31 15:57 ` David Lechner
2016-11-01 15:04 ` Thomas Petazzoni
2016-11-01 18:54 ` [Buildroot] <DKIM> " Vincent Stehlé
2016-10-30 23:32 ` [Buildroot] [PATCH 3/4] linux: add ev3dev extension David Lechner
2016-11-01 15:09 ` Thomas Petazzoni
2016-10-30 23:32 ` [Buildroot] [PATCH 4/4] board/lego/ev3: Use ev3dev linux ext for ev3dev drivers David Lechner
2016-11-01 15:10 ` Thomas Petazzoni
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