CL-SOM-iMX6: Linux: Kernel
Contents
- 1 Overview
- 2 Building kernel for CL-SOM-iMX6
- 3 Basic platform support
- 4 Deploying the CL-SOM-iMX6 kernel and modules
- 5 U-Boot Environment
- 6 Kernel configuration
- 7 See also
Overview
The Linux kernel for the CompuLab CL-SOM-iMX6 System-on-Module / Computer-on-Module provides support for on-board peripherals and abstracts the functionality provided by the hardware.
Current support coverage is specified at O/S support coverage map page.
CompuLab provides ready-to-run binary kernel images, and source code of the modifications and additions made to the Linux kernel to work properly with CL-SOM-iMX6 modules.
Building kernel for CL-SOM-iMX6
|
The instructions below assume that the /home/development/CL-SOM-iMX6 directory has been created for CL-SOM-iMX6 kernel development. |
Getting kernel sources
Linux git tree can be cloned or downloaded as a tarball from Freescale public git repository.
Snapshot download
- Download linux-2.6-imx-rel_imx_4.1.15_1.1.0_ga.tar.bz2.
- Extrace the kernel source code from the downloaded archive linux-2.6-imx-rel_imx_4.1.15_1.1.0_ga.tar.bz2
cd /home/development/CL-SOM-iMX6 wget http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/snapshot/linux-2.6-imx-rel_imx_4.1.15_1.1.0_ga.tar.bz2 tar -xvf linux-2.6-imx-rel_imx_4.1.15_1.1.0_ga.tar.bz2 mv linux-2.6-imx-rel_imx_4.1.15_1.1.0_ga kernel
- Apply the CL-SOM-iMX6 patch.
cd /home/development/CL-SOM-iMX6/kernel patch -p1 < /path/to/CL-SOM-iMX6/kernel/linux-4.1.15-cl-som-imx6-1.0.patch
Git clone
- Install git version control system.
- Create a clone of the CL-SOM-iMX6 Linux kernel tree
cd /home/development/CL-SOM-iMX6/ git clone git://git.freescale.com/imx/linux-2.6-imx.git mv linux-2.6-imx kernel cd /home/development/CL-SOM-iMX6/kerel
- Apply the CL-SOM-iMX6 patch. Create a development branch and apply CompuLab patches.
git checkout -b development rel_imx_4.1.15_1.1.0_ga git am /home/development/CL-SOM-iMX6/kernel/patches/*.patch
Building the kernel
export ARCH=arm
export CROSS_COMPILE=arm-none-linux-eabi-
export DTB=$(ls -al arch/arm/boot/dts | awk '(/som-imx6.*\.dts$/||/sbc-imx6.*\.dts$/)&&($0=$NF)&&(gsub(/dts/,"dtb"))' ORS=" ")
make cl_som_imx6_defconfig
make menuconfig
make zImage modules ${DTB} && INSTALL_MOD_PATH=/home/development/CL-SOM-iMX6/rootfs make modules_install
In the example above:
- Linux kernel image (zImage) will be created in /home/development/CL-SOM-iMX6/kernel/arch/arm/boot
- device tree blobs will be created in /home/development/CL-SOM-iMX6/kernel/arch/arm/boot/dts
- loadable kernel modules will be installed into the /home/development/CL-SOM-iMX6/rootfs/lib/modules directory.
When the CL-SOM-iMX6 is booted with the kernel image created as described above and with networked root filesystem at /home/development/CL-SOM-iMX6/rootfs/, the system will be able to load the kernel modules properly, thus avoiding module version problems.
zImage, DTB files and modules locations
- In the example above, the Linux kernel image (zImage) will be created in the /home/development/CL-SOM-iMX6/kernel/arch/arm/boot directory.
ls -al /home/development/CL-SOM-iMX6/kernel/arch/arm/boot/zImage
- DTB files
ls -al /home/development/CL-SOM-iMX6/kernel/arch/arm/boot/dtb/*.dtb
- The loadable kernel modules will be installed into the /home/development/CL-SOM-iMX6/rootfs/lib/modules directory.
ls -al /home/development/CL-SOM-iMX6/rootfs/lib/modules
Kernel Version
- In the example above, the Linux kernel release version number will be saved in /home/development/CL-SOM-iMX6/kernel/include/config/kernel.release
cat /home/development/CL-SOM-iMX6/kernel/include/config/kernel.release
Prepare kernel and modules tarball
- In the example below, the Linux kernel and modules are packed into the tar archive for deploying onto the CL-SOM-iMX6.
mkdir -p /home/development/CL-SOM-iMX6/rootfs/boot cp -v /home/development/CL-SOM-iMX6/kernel/arch/arm/boot/zImage /home/development/CL-SOM-iMX6/rootfs/boot/zImage-cl-som-imx6 cp -v /home/development/CL-SOM-iMX6/kernel/arch/arm/boot/dtb/*.dtb /home/development/CL-SOM-iMX6/rootfs/boot/ tar -C /home/development/CL-SOM-iMX6/rootfs -czvf /home/development/CL-SOM-iMX6/linux-image-CL-SOM-iMX6.tar.gz .
Basic platform support
The CL-SOM-iMX6 basic platform support is implemented in the arch/arm/boot/dts/{*fx6*,*cl-som-imx6*,*sbc-imx6*} files of the Linux kernel source tree.
These files contain:
- default setup of multi-functional pins;
- registration of the devices integrated in the CL-SOM-iMX6 module;
- definitions of platform-specific configuration for these devices.
Deploying the CL-SOM-iMX6 kernel and modules
Boot up the CL-SOM-iMX6 computer. Copy the previously created linux-image-CL-SOM-iMX6.tar.gz to /root directory of the CL-SOM-iMX6.
Mount boot partition
- Use the below command to mount the boot partition for installing the CL-SOM-iMX6 Linux kernel binary:
boot_partition=$(awk '!/nfs/ { for (i=1;i<=NF;i++) { if($i~/^root=/) { print substr($i,6,length($i)-6)"1" } } }' /proc/cmdline)
mount $boot_partition /boot
Back up old kernel
- It is essential to backup the old (known to work) kernel binary.
mkdir /boot/$(uname -r)
mv /boot/{*Image-cl-som-imx6,*.dtb} /lib/modules/$(uname -r)/
Installing kernel and modules
Assuming that the linux-image-CL-SOM-iMX6.tar.gz tar ball has been copied to the CL-SOM-iMX6 /root directory.
- Extract and install the Linux kernel binary:
tar -C / -xvf /root/linux-image-CL-SOM-iMX6.tar.gz
U-Boot Environment
Common parameters
setenv loadaddr 0x10800000 setenv dtbaddr 0x15000000 setenv bootm_low 0x15000000 setenv zimage zImage-cl-som-imx6 setenv console console=ttymxc3,115200 setenv rootopt rootfstype=ext4 rw rootwait setenv netopt ip=dhcp
- SBC-FX6 + QuadPlus
In order to boot up an SBC-FX6 with a quad core plus module make use of the imx6qp-sbc-fx6.dtb blob file.
setenv dtb imx6qp-sbc-fx6.dtb
In order to boot up an SBC-FX6 with a dual core module make use of the imx6q-sbc-fx6.dtb blob file.
- SBC-FX6 + Dual
setenv dtb imx6q-sbc-fx6.dtb
SATA Boot Parameters
setenv satadev 0
setenv rootdev root=/dev/sda2
sata init
fatload sata ${satadev} ${loadaddr} ${zimage}
fatload sata ${satadev} ${dtbaddr} ${dtb}
setenv bootargs ${console} ${rootdev} ${rootopt} ${netopt}
bootz ${loadaddr} - ${dtbaddr}
MMC Boot Parameters
setenv mmcdev 2
setenv rootdev root=/dev/mmcblk2p2
mmc dev ${mmcdev}
fatload mmc ${mmcdev} ${loadaddr} ${zimage}
fatload mmc ${mmcdev} ${dtbaddr} ${dtb}
setenv bootargs ${console} ${rootdev} ${rootopt} ${netopt}
bootz ${loadaddr} - ${dtbaddr}
eMMC Boot Parameters
setenv mmcdev 3
setenv rootdev root=/dev/mmcblk3p2
mmc dev ${mmcdev}
fatload mmc ${mmcdev} ${loadaddr} ${zimage}
fatload mmc ${mmcdev} ${dtbaddr} ${dtb}
setenv bootargs ${console} ${rootdev} ${rootopt} ${netopt}
bootz ${loadaddr} - ${dtbaddr}
NFS Boot Parameters
setenv nfsserver <nfs server ip address>
setenv tftpserver <tftp server ip address>
setenv rootdev root=/dev/nfs rw
dhcp
tftpboot ${loadaddr} ${tftpserver}:${zimage}
tftpboot ${dtbaddr} ${tftpserver}:${dtb}
setenv bootargs ${console} ${rootdev} nfsroot=${nfsserver}:${nfsroot} ${netopt}
bootz ${loadaddr} - ${dtbaddr}
Kernel configuration
System Support
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > System Type > Freescale i.MX family
Enable:
- i.MX6 Quad/DualLite support
- CompuLab CM-FX6 Support
┌──────────────────────────────────────────────── Freescale i.MX family ────────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Freescale i.MX family │ │ │ │ *** Device tree only *** │ │ │ │ [ ] i.MX50 support │ │ │ │ [ ] i.MX51 support │ │ │ │ [*] i.MX53 support │ │ │ │ [*] i.MX6 Quad/DualLite support │ │ │ │ [*] i.MX6 SoloLite support │ │ │ │ [ ] i.MX6 SoloX support │ │ │ │ [ ] i.MX6 UltraLite support │ │ │ │ [ ] i.MX7 Dual support │ │ │ │ [*] Vybrid Family VF610 support │ │ │ │ Clocksource for scheduler clock (Use ARM Global Timer) ---> │ │ │ │ [ ] Freescale LS1021A support │ │ │ │ [*] CompuLab CM-FX6 Support │ │ │ │ │ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
Bus Support
PCIE
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Bus support > PCI host controller drivers
Enable:
- Freescale i.MX6 PCIe controller
┌───────────────────────────────────────────── PCI host controller drivers ─────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ [*] Freescale i.MX6 PCIe controller │ │ │ │ [ ] Enable pcie compliance tests on imx6 │ │ │ │ [ ] PCI Express EP mode in the IMX6 RC/EP interconnection system │ │ │ │ [ ] PCI Express RC mode in the IMX6 RC/EP interconnection system │ │ │ │ [ ] Generic PCI host controller │ │ │ │ [ ] Freescale Layerscape PCIe controller │ │ │ │ < > Broadcom iProc PCIe controller │ │ │ │ │ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
I2C
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > I2C support > I2C Hardware Bus support
Enable:
- IMX I2C interface
┌────────────────────────────────────────────── I2C Hardware Bus support ───────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ *** I2C system bus drivers (mostly embedded / system-on-chip) *** │ │ │ │ < > CBUS I2C driver │ │ │ │ < > Synopsys DesignWare Platform │ │ │ │ < > Synopsys DesignWare PCI │ │ │ │ < > GPIO-based bitbanging I2C │ │ │ │ <*> IMX I2C interface │ │ │ │...................................................................................................................│ │ │ │ *** Other I2C/SMBus bus drivers *** │ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
SPI
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > SPI support
Enable:
- Freescale i.MX SPI controllers
┌───────────────────────────────────────────────────── SPI support ─────────────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- SPI support │ │ │ │ [ ] Debug support for SPI drivers │ │ │ │ *** SPI Master Controller Drivers *** │ │ │ │ < > Altera SPI Controller │ │ │ │ -*- Utilities for Bitbanging SPI masters │ │ │ │ < > Cadence SPI controller │ │ │ │ < > GPIO-based bitbanging SPI Master │ │ │ │ <*> Freescale i.MX SPI controllers │ │ │ │ *** SPI Protocol Masters *** │ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
SATA
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > Serial ATA and Parallel ATA drivers (libata)
Enable:
- AHCI SATA support
- Platform AHCI SATA support
- Freescale i.MX AHCI SATA support
┌──────────────────────────────────── Serial ATA and Parallel ATA drivers (libata) ─────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Serial ATA and Parallel ATA drivers (libata) │ │ │ │ <*> AHCI SATA support │ │ │ │ <*> Platform AHCI SATA support │ │ │ │ <*> Freescale i.MX AHCI SATA support │ │ │ │ *** SATA SFF controllers with BMDMA *** │ │ │ │ < > Intel ESB, ICH, PIIX3, PIIX4 PATA/SATA support │ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
USB
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > USB support
Enable:
- Support for Freescale i.MX on-chip EHCI USB controller
- Generic EHCI driver for a platform device
┌───────────────────────────────────────────────────── USB support ─────────────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ *** USB Host Controller Drivers *** │ │ │ │ <*> Support for Freescale i.MX on-chip EHCI USB controller │ │ │ │ <*> Generic EHCI driver for a platform device │ │ │ │...................................................................................................................│ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
MMC/SD/SDIO
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > MMC/SD/SDIO card support
Enable:
- Secure Digital Host Controller Interface support
- SDHCI platform and OF driver helper
- SDHCI support for the Freescale eSDHC/uSDHC i.MX controller
┌────────────────────────────────────────────── MMC/SD/SDIO card support ───────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- MMC/SD/SDIO card support │ │ │ │...................................................................................................................│ │ │ │ <*> MMC block device driver │ │ │ │ (8) Number of minors per block device │ │ │ │ [*] Use bounce buffer for simple hosts │ │ │ │ < > SDIO UART/GPS class support │ │ │ │ < > MMC host test driver │ │ │ │ *** MMC/SD/SDIO Host Controller Drivers *** │ │ │ │ <*> Secure Digital Host Controller Interface support │ │ │ │ < > SDHCI support on PCI bus │ │ │ │ <*> SDHCI platform and OF driver helper │ │ │ │ < > SDHCI OF support for the Arasan SDHCI controllers │ │ │ │ <*> SDHCI support for the Freescale eSDHC/uSDHC i.MX controller │ │ │ │...................................................................................................................│ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
NetWork
CAN
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Networking support > CAN bus subsystem support > CAN Device Drivers
Enable:
- Support for Freescale FLEXCAN based chips
┌───────────────────────────────────────────────── CAN Device Drivers ──────────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ < > Virtual Local CAN Interface (vcan) │ │ │ │...................................................................................................................│ │ │ │ <*> Support for Freescale FLEXCAN based chips │ │ │ │...................................................................................................................│ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
FEC/IGB
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > Network device support > Ethernet driver support
Enable:
- Freescale devices
- FEC ethernet controller (of ColdFire and some i.MX CPUs)
- Intel devices
- Intel(R) 82575/82576 PCI-Express Gigabit Ethernet support
┌─────────────────────────────────────────────── Ethernet driver support ───────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ [ ] Faraday devices │ │ │ │ [*] Freescale devices │ │ │ │ <*> FEC ethernet controller (of ColdFire and some i.MX CPUs) │ │ │ │...................................................................................................................│ │ │ │ [*] Intel devices │ │ │ │ < > Intel(R) PRO/100+ support │ │ │ │ < > Intel(R) PRO/1000 Gigabit Ethernet support │ │ │ │ < > Intel(R) PRO/1000 PCI-Express Gigabit Ethernet support │ │ │ │ <M> Intel(R) 82575/82576 PCI-Express Gigabit Ethernet support │ │ │ │...................................................................................................................│ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
WiFi
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > Network device support > Wireless LAN
Enable:
- Broadcom FullMAC wireless cards suppor
- SDIO bus interface support
┌────────────────────────────────────────────── Wireless LAN ──────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted │ │ letters are hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> │ │ to exit, <?> for Help, </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module │ │ capable │ │ ┌────────────────^(-)──────────────────────────────────────────────────────────────────────────────────┐ │ │ │ < > ADMtek ADM8211 support │ │ │ │ < > Simulated radio testing tool for mac80211 │ │ │ │ < > Marvell 88W8xxx PCI/PCIe Wireless support │ │ │ │ <*> Atheros Wireless Cards ---> │ │ │ │ < > Broadcom 43xx wireless support (mac80211 stack) │ │ │ │ < > Broadcom 43xx-legacy wireless support (mac80211 stack) │ │ │ │ <M> Broadcom FullMAC wireless cards support │ │ │ │ [*] SDIO bus interface support │ │ │ │ < > BCM4354 support │ │ │ │ (/system/vendor/firmware/fw_bcmdhd.bin) Firmware path │ │ │ │ (/system/etc/wifi/bcmdhd.cal) NVRAM path │ │ │ │ [ ] Enable memory preallocation │ │ │ │ [ ] Use CFG80211 sched scan │ │ │ └────────────────┴(+)──────────────────────────────────────────────────────────────────────────────────┘ │ ├──────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └──────────────────────────────────────────────────────────────────────────────────────────────────────────┘
Bluetooth
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Networking support > Bluetooth subsystem support
Enable:
- Bluetooth Classic (BR/EDR) features
- RFCOMM protocol support
- RFCOMM TTY support
┌────────────────────────────────────── Bluetooth subsystem support ───────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted │ │ letters are hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> │ │ to exit, <?> for Help, </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module │ │ capable │ │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Bluetooth subsystem support │ │ │ │ [*] Bluetooth Classic (BR/EDR) features │ │ │ │ <M> RFCOMM protocol support │ │ │ │ [*] RFCOMM TTY support │ │ │ │ < > BNEP protocol support │ │ │ │ < > HIDP protocol support │ │ │ │ [*] Bluetooth Low Energy (LE) features │ │ │ │ [ ] Bluetooth self testing support │ │ │ │ Bluetooth device drivers ---> │ │ │ │ │ │ │ └──────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├──────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └──────────────────────────────────────────────────────────────────────────────────────────────────────────┘ ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Networking support > Bluetooth subsystem support > Bluetooth device drivers
Enable:
- HCI UART driver
- Broadcom protocol support
┌──────────────────────────────────────── Bluetooth device drivers ────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted │ │ letters are hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> │ │ to exit, <?> for Help, </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module │ │ capable │ │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ < > HCI USB driver │ │ │ │ < > HCI SDIO driver │ │ │ │ <M> HCI UART driver │ │ │ │ -*- UART (H4) protocol support │ │ │ │ [ ] BCSP protocol support │ │ │ │ [ ] Atheros AR300x serial support │ │ │ │ [ ] HCILL protocol support │ │ │ │ [ ] Three-wire UART (H5) protocol support │ │ │ │ [ ] Intel protocol support │ │ │ │ [*] Broadcom protocol support │ │ │ │ < > HCI BCM203x USB driver │ │ │ │ < > HCI BPA10x USB driver │ │ │ │ < > HCI BlueFRITZ! USB driver │ │ │ └────────────────┴(+)──────────────────────────────────────────────────────────────────────────────────┘ │ ├──────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └──────────────────────────────────────────────────────────────────────────────────────────────────────────┘
Multimedia
IPU
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
> Device Drivers > MXC support drivers Enable:
- Image Processing Unit Driver
┌───────────────────────────────────────────────── MXC support drivers ─────────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ [*] Image Processing Unit Driver │ │ │ │ MXC Media Local Bus Driver ---> │ │ │ │ < > i.MX IPUv3 prefetch engine │ │ │ │ MXC Vivante GPU support ---> │ │ │ │ MXC SIM Support ---> │ │ │ │ MXC MIPI Support ---> │ │ │ │ MXC VPU(Video Processing Unit) support ---> │ │ │ │ MXC HDMI CEC (Consumer Electronics Control) support ---> │ │ │ │ │ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
GPU
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > MXC support drivers > MXC Vivante GPU support
Enable:
- MXC Vivante GPU support
┌─────────────────────────────────────────────── MXC Vivante GPU support ───────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ <M> MXC Vivante GPU support │ │ │ │ │ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
VPU
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > MXC support drivers > MXC VPU(Video Processing Unit) support
Enable:
- Support for MXC VPU(Video Processing Unit)
┌─────────────────────────────────────── MXC VPU(Video Processing Unit) support ────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ <*> Support for MXC VPU(Video Processing Unit) │ │ │ │ [ ] MXC VPU debugging │ │ │ │ [ ] MX6 VPU 352M │ │ │ │ │ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
Frame buffer Devices
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
> Device Drivers > Graphics support > Frame buffer Devices Enable:
- MXC Framebuffer support
- Synchronous Panel Framebuffer
- MXC MIPI_DSI
- TRULY WVGA Panel
- MXC LDB
- MXC HDMI driver support
- MXC EDID support
- Hannstar CABC function
┌──────────────────────────────────────────────── Frame buffer Devices ─────────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌──────────────────────^(-)─────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ < > AUO-K190X EPD controller support │ │ │ │ <*> MXS LCD framebuffer support │ │ │ │ [ ] Simple framebuffer support │ │ │ │ <*> MXC Framebuffer support │ │ │ │ <*> Synchronous Panel Framebuffer │ │ │ │ <*> MXC MIPI_DSI │ │ │ │ < > MXC MIPI_DSI_SAMSUNG │ │ │ │ <*> TRULY WVGA Panel │ │ │ │ <*> MXC LDB │ │ │ │ <*> MXC HDMI driver support │ │ │ │ <*> MXC EDID support │ │ │ │ <*> Si Image SII9022 DVI/HDMI Interface Chip │ │ │ │ < > MXC DCIC │ │ │ │ <*> Hannstar CABC function │ │ │ │ <*> E-Ink Panel Framebuffer │ │ │ │ < > E-Ink Panel Framebuffer based on EPDC V2 │ │ │ │ [ ] E-Ink Auto-update Mode Support │ │ │ │ < > Solomon SSD1307 framebuffer support │ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
Audio
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > Sound card support > Advanced Linux Sound Architecture > ALSA for SoC audio support > SoC Audio for Freescale CPUs
Enable:
- SoC Audio support for i.MX boards with S/PDIF
- SoC Audio support for i.MX boards with HDMI port
- SoC Audio support for i.MX boards with WM8731
┌──────────────────────────────────────────── SoC Audio for Freescale CPUs ─────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ *** Common SoC Audio options for Freescale CPUs: *** │ │ │ │...................................................................................................................│ │ │ │ <*> SoC Audio support for i.MX boards with S/PDIF │ │ │ │ <*> SoC Audio support for i.MX boards with HDMI port │ │ │ │ <*> SoC Audio support for i.MX boards with WM8731 │ │ │ │...................................................................................................................│ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
MXC MIPI
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > MXC support drivers > MXC MIPI Support
Enable:
- MIPI CSI2 support
┌────────────────────────────────────────────────── MXC MIPI Support ───────────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ <*> MIPI CSI2 support │ │ │ │ │ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
MIPI Camera
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > Multimedia support > V4L platform devices > MXC Camera/V4L2 PRP Features support
Enable:
- OmniVision ov5640 camera support using mipi
┌──────────────────────────────────────── MXC Camera/V4L2 PRP Features support ─────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ <M> OmniVision ov5640 camera support │ │ │ │ <M> OmniVision ov5642 camera support │ │ │ │ <M> OmniVision ov5640 camera support using mipi │ │ │ │ <M> Analog Device adv7180 TV Decoder Input support │ │ │ │ <*> Select Overlay Rounting (Queue ipu device for overlay library) ---> │ │ │ │ <*> Pre-processor Encoder library │ │ │ │ <*> IPU CSI Encoder library │ │ │ │ │ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
Input Device
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > Input device support > Touchscreens
Enable:
- ADS7846/TSC2046/AD7873 and AD(S)7843 based touchscreens
┌──────────────────────────────────────────────────── Touchscreens ─────────────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Touchscreens │ │ │ │ <M> ADS7846/TSC2046/AD7873 and AD(S)7843 based touchscreens │ │ │ │...................................................................................................................│ │ │ │ │ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
OTG
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > USB support
Enable:
- OTG support
┌───────────────────────────────────────────────────── USB support ─────────────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- USB support │ │ │ │ <*> Support for Host-side USB │ │ │ │...................................................................................................................│ │ │ │ [*] OTG support │ │ │ │ [ ] Rely on OTG and EH Targeted Peripherals List │ │ │ │...................................................................................................................│ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
USB Gadget Support
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > USB support > USB Gadget Support
Enable:
- USB Gadget Drivers
- Audio Gadget
- UAC 1.0 (Legacy)
- Ethernet Gadget (with CDC Ethernet support)
- Mass Storage Gadget
- Serial Gadget (with CDC ACM and CDC OBEX support)
┌───────────────────────────────────────────────── USB Gadget Support ──────────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- USB Gadget Support │ │ │ │...................................................................................................................│ │ │ │ <M> USB Gadget Drivers │ │ │ │ <M> Audio Gadget │ │ │ │ [*] UAC 1.0 (Legacy) │ │ │ │ <M> Ethernet Gadget (with CDC Ethernet support) │ │ │ │ <M> Mass Storage Gadget │ │ │ │ <M> Serial Gadget (with CDC ACM and CDC OBEX support) │ │ │ │...................................................................................................................│ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
Serial Console
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > Character devices > Serial drivers
Enable:
- IMX serial port support
- Console on IMX serial port
┌─────────────────────────────────────────────────── Serial drivers ────────────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │...................................................................................................................│ │ │ │ < > MAX310X support │ │ │ │ <*> IMX serial port support │ │ │ │ [*] Console on IMX serial port │ │ │ │ < > Digi International NEO and Classic PCI Support │ │ │ │...................................................................................................................│ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
LED
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > LED Support > LED Trigger support
Enable:
- LED Heartbeat Trigger
┌───────────────────────────────────────────────── LED Trigger support ─────────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted letters are │ │ hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, │ │ </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module capable │ │ │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- LED Trigger support │ │ │ │...................................................................................................................│ │ │ │ <*> LED Heartbeat Trigger │ │ │ │...................................................................................................................│ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
RTC
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ───────────────────────────────────────────────────────────────────────────────────────────────────────────── > Device Drivers > Real Time Clock Eanble: * Abracon ABx80x ┌──────────────────────────────────────────── Real Time Clock ─────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted │ │ letters are hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press <Esc><Esc> │ │ to exit, <?> for Help, </> for Search. Legend: [*] built-in [ ] excluded <M> module < > module │ │ capable │ │ ┌────────────────^(-)──────────────────────────────────────────────────────────────────────────────────┐ │ │ │ [*] /dev/rtcN (character devices) │ │ │ │ [*] RTC UIE emulation on dev interface │ │ │ │ < > Test driver/device │ │ │ │ *** I2C RTC drivers *** │ │ │ │ < > Abracon AB-RTCMC-32.768kHz-B5ZE-S3 │ │ │ │ <M> Abracon ABx80x │ │ │ │ < > Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025 │ │ │ │ < > Dallas/Maxim DS1374 │ │ │ │ < > Dallas/Maxim DS1672 │ │ │ │ < > Dallas/Maxim DS3232 │ │ │ │ < > Haoyu Microelectronics HYM8563 │ │ │ │ < > Maxim MAX6900 │ │ │ │ < > Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A │ │ │ └────────────────┴(+)──────────────────────────────────────────────────────────────────────────────────┘ │ ├──────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └──────────────────────────────────────────────────────────────────────────────────────────────────────────┘
CMDLINE
make menuconfig .config - Linux/arm 4.1.15 Kernel Configuration ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── > Boot options
- Edit CONFIG_CMDLINE
|
|
The latest release procedure deploys the rootfs onto the 2-nd boot device partition. This screenshot reflects it. |
┌──────────────────────────────────────────── Boot options ─────────────────────────────────────────────┐ │ Arrow keys navigate the menu. <Enter> selects submenus ---> (or empty submenus ----). Highlighted │ │ letters are hotkeys. Pressing <Y> includes, <N> excludes, <M> modularizes features. Press │ │ <Esc><Esc> to exit, <?> for Help, </> for Search. Legend: [*] built-in [ ] excluded <M> module │ │ < > module capable │ │ ┌───────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ -*- Flattened Device Tree support │ │ │ │ [*] Support for the traditional ATAGS boot data passing │ │ │ │ [ ] Provide old way to pass kernel parameters │ │ │ │ (0) Compressed ROM boot loader base address │ │ │ │ (0) Compressed ROM boot loader BSS address │ │ │ │ [ ] Use appended device tree blob to zImage (EXPERIMENTAL) │ │ │ │ (console=ttymxc3,115200 root=/dev/mmcblk2p2 rootwait) Default kernel command string │ │ │ │ Kernel command line type (Use bootloader kernel arguments if available) ---> │ │ │ │ [ ] Kexec system call (EXPERIMENTAL) │ │ │ │ [ ] Build kdump crash kernel (EXPERIMENTAL) │ │ │ │ -*- Auto calculation of the decompressed kernel image address │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ └───────────────────────────────────────────────────────────────────────────────────────────────────┘ │ ├───────────────────────────────────────────────────────────────────────────────────────────────────────┤ │ <Select> < Exit > < Help > < Save > < Load > │ └───────────────────────────────────────────────────────────────────────────────────────────────────────┘
┌───────────────────── Default kernel command string ─────────────────────┐
│ Please enter a string value. Use the <TAB> key to move from the input │
│ field to the buttons below it. │
│ ┌─────────────────────────────────────────────────────────────────────┐ │
│ │console=ttymxc3,115200 root=/dev/mmcblk2p2 rootwait │ │
│ └─────────────────────────────────────────────────────────────────────┘ │
│ │
├─────────────────────────────────────────────────────────────────────────┤
│ < Ok > < Help > │
└─────────────────────────────────────────────────────────────────────────┘
