Freescale IMX53QSB

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Hardware

The i.MX53 Quick Start Board (aka LOCO) is a 1 GHz ARM Cortex-A8 embedded computer on a 3-inch by 3-inch board.

The loco boots from SD Card with the boot loader at the first sector of it.

You can use Barebox on it:

http://git.pengutronix.de/?p=barebox.git;a=summary

Barebox

Barebox uses the same build (Kbuild) and configuration (Kconfig) tools as the Linux kernel.

1) First you need to clone the tree

git clone git://git.pengutronix.de/git/barebox.git

Most probably you want to use a released Barebox version, by running 'git checkout <version>'. Check which versions are available with 'git tag -l' and use the latest one.

2) Then you need to configure it:

make freescale_mx53_loco_defconfig

3) Compile it

make

4) Now you need to generate your SD Card:

Plug the SD Card into your laptop and copy barebox.bin to it:

dd if=barebox.bin of=/dev/sdb bs=512 
sync

5) plug the SD card into the board and boot it (press the boot button)

Now that you have flash, you will see Barebox booting and trying to start the kernel from the SD card.

barebox 2011.09.0-00338-ga6d06f2 (Oct  9 2011 - 23:07:34)

Board: Freescale i.MX53 LOCO
registered netconsole as cs1
eth@eth0: got MAC address from EEPROM: 00:04:9F:01:AB:1D 
Malloc space: 0x7df00000 -> 0x7ff00000 (size 32 MB)
Stack space : 0x7def8000 -> 0x7df00000 (size 32 kB)
envfs: wrong magic on /dev/env0
no valid environment found on /dev/env0. Using default environment
running /env/bin/init...
barebox@Freescale i.MX53 LOCO:/

Kernel

You can use the mainline kernel, but take into account that not all IP cores available in the MX53 are already supported there. It is also possible to use Freescale's kernel, which can be found here:

http://opensource.freescale.com/git?p=imx/linux-2.6-imx.git;a=summary

1) First you need to clone the tree:

a) Mainline

git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git

Note that, like with Barebox, if you aim for stability, you should take a released kernel revision instead of some random version from git.

b) Freescale

git clone http://opensource.freescale.com/pub/scm/imx/linux-2.6-imx.git

git checkout -b work imx_2.6.38_11.09.01

or

To speed up the clone, first clone the linus tree, then fetch freescale as this

or use any already cloned kernel

git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git

git remote add freescale http://opensource.freescale.com/pub/scm/imx/linux-2.6-imx.git

git fetch freescale

git checkout -b work freescale/imx_2.6.38_11.09.01

2) Then you need to configure the kernel:

make imx5_defconfig

3) Compile it

make

If you have a machine with more than one core, add -j <number-of-parallel-builds>.

4) now you need to generate your SD Card:

Plug the sd card on your laptop and copy barebox.bin on it

dd if=arch/arm/boot/uImage of=/dev/sdb bs=512 seek=768
sync

5) Plug the SD card into the board and boot it (press the boot button)

Now that you have flashed everything, you will see barebox booting and trying to start the kernel from the SD card.

barebox 2011.09.0-00338-ga6d06f2 (Oct  9 2011 - 23:07:34)

Board: Freescale i.MX53 LOCO
registered netconsole as cs1
eth@eth0: got MAC address from EEPROM: 00:04:9F:01:AB:1D
Malloc space: 0x7df00000 -> 0x7ff00000 (size 32 MB)
Stack space : 0x7def8000 -> 0x7df00000 (size 32 kB)
envfs: wrong magic on /dev/env0
no valid environment found on /dev/env0. Using default environment
running /env/bin/init...

Enter the Password within 3s to stop the boot
Password: booting kernel of type uimage from /dev/disk0.kernel
  Verifying Checksum ... OK
  Image Name:   Linux-2.6.35.3-00745-gce4c61a-di
  Created:      2011-10-09  13:43:29 UTC
  Image Type:   ARM Linux Multi-File Image (uncompressed)
  Data Size:    2885707 Bytes =  2.8 MB
  Load Address: 70008000
  Entry Point:  70008000
  Contents:
     Image 0: 2729640 Bytes =  2.6 MB
     Image 1: 156067 Bytes = 152.4 kB
      Offset = 0x7e5d0708
use initrd @1
initrd_start=0x72000000
OK

Starting kernel with initrd ...

commandline: console=ttymxc0,115200 ip=192.168.201.33:192.168.201.98:192.168.201.98:255.255.255.0::eth0: root=/dev/ram0 rdinit=/sbin/init
arch_number: 3273
Linux version 2.6.35.3-00745-gce4c61a-dirty (root@j-debian) (gcc version 4.5.1 (Sourcery G++ Lite 2010.09-50) ) #11 PREEMPT Sat Oct 8 21:35:40 CST 2011
CPU: ARMv7 Processor [412fc085] revision 5 (ARMv7), cr=10c53c7f
CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
Machine: Freescale MX53 LOCO Board
Memory policy: ECC disabled, Data cache writeback
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 218112
Kernel command line: console=ttymxc0,115200 ip=192.168.201.33:192.168.201.98:192.168.201.98:255.255.255.0::eth0: root=/dev/ram0 rdinit=/sbin/init
PID hash table entries: 4096 (order: 2, 16384 bytes)
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 352MB 512MB = 864MB total
Memory: 868548k/868548k available, 16188k reserved, 0K highmem
Virtual kernel memory layout:
   vector  : 0xffff0000 - 0xffff1000   (   4 kB)
   fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
   DMA     : 0xf9e00000 - 0xffe00000   (  96 MB)
   vmalloc : 0xe0800000 - 0xf4000000   ( 312 MB)
   lowmem  : 0x80000000 - 0xe0000000   (1536 MB)
   pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
   modules : 0x7f000000 - 0x7fe00000   (  14 MB)
     .init : 0x80008000 - 0x8002f000   ( 156 kB)
     .text : 0x8002f000 - 0x8078b000   (7536 kB)
     .data : 0x807ac000 - 0x807f3aa0   ( 287 kB)
SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Hierarchical RCU implementation.
       RCU-based detection of stalled CPUs is disabled.
       Verbose stalled-CPUs detection is disabled.
NR_IRQS:368
MXC GPIO hardware
MXC IRQ initialized
MXC_Early serial console at MMIO 0x53fbc000 (options '115200')
bootconsole [ttymxc0] enabled
Console: colour dummy device 80x30
Calibrating delay loop... 999.42 BogoMIPS (lpj=4997120)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
devtmpfs: initialized
regulator: core version 0.5
NET: Registered protocol family 16
i.MX IRAM pool: 128 KB@0xe0840000
IRAM READY
CPU is i.MX0 Revision 0.0
Using SDMA I.API
MXC DMA API initialized
IMX usb wakeup probe
IMX usb wakeup probe
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
da9052_i2c_is_connected - i2c read success..............
regulator: DA9052_LDO1: 600 <--> 1800 mV at 1300 mV normal 
regulator: DA9052_LDO2: 600 <--> 1800 mV at 1300 mV normal 
regulator: DA9052_LDO3: 1725 <--> 3300 mV at 3300 mV normal 
regulator: DA9052_LDO4: 1725 <--> 3300 mV at 2775 mV normal 
regulator: DA9052_LDO5: 1200 <--> 3600 mV at 1300 mV normal 
regulator: DA9052_LDO6: 1200 <--> 3600 mV at 1300 mV normal 
regulator: DA9052_LDO7: 1200 <--> 3600 mV at 2750 mV normal 
regulator: DA9052_LDO8: 1200 <--> 3600 mV at 1800 mV normal 
regulator: DA9052_LDO9: 1250 <--> 3650 mV at 1500 mV normal 
regulator: DA9052_LDO10: 1200 <--> 3600 mV at 1300 mV normal 
regulator: DA9052_BUCK_CORE: 500 <--> 2075 mV at 1100 mV normal 
regulator: DA9052_BUCK_PRO: 500 <--> 2075 mV at 1300 mV normal 
regulator: DA9052_BUCK_MEM: 925 <--> 2500 mV at 1500 mV normal 
regulator: DA9052_BUCK_PERI: 1800 <--> 3600 mV at 3600 mV normal 
IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)
Advanced Linux Sound Architecture Driver Version 1.0.23.
Bluetooth: Core ver 2.15
NET: Registered protocol family 31
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
Switching to clocksource mxc_timer1
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
TCP bind hash table entries: 65536 (order: 6, 262144 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
UDP hash table entries: 512 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 512 (order: 1, 8192 bytes)
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Unpacking initramfs...
Freeing initrd memory: 152K
LPMode driver module loaded
Static Power Management for Freescale i.MX5
PM driver module loaded
sdram autogating driver module loaded
Bus freq driver module loaded
DI0 is primary
mxc_dvfs_core_probe
DVFS driver module loaded
i.MXC CPU frequency driver
DVFS PER driver module loaded
squashfs: version 4.0 (2009/01/31) Phillip Lougher
msgmni has been set to 1696
alg: No test for stdrng (krng)
cryptodev: driver loaded.
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
mxc_ipu mxc_ipu: Channel already disabled 9
mxc_ipu mxc_ipu: Channel already uninitialized 9
Console: switching to colour frame buffer device 100x30
tve: probe of tve.0 failed with error -1
sii9022 1-0039: SII9022: cound not find device
Serial: MXC Internal UART driver
mxcintuart.0: ttymxc0 at MMIO 0x53fbc000 (irq = 31) is a Freescale i.MX
console [ttymxc0] enabled, bootconsole disabled
console [ttymxc0] enabled, bootconsole disabled
mxcintuart.1: ttymxc1 at MMIO 0x53fc0000 (irq = 32) is a Freescale i.MX
mxcintuart.2: ttymxc2 at MMIO 0x5000c000 (irq = 33) is a Freescale i.MX
mxcintuart.3: ttymxc3 at MMIO 0x53ff0000 (irq = 13) is a Freescale i.MX
mxcintuart.4: ttymxc4 at MMIO 0x63f90000 (irq = 86) is a Freescale i.MX
loop: module loaded
ahci: SSS flag set, parallel bus scan disabled
ahci ahci.0: AHCI 0001.0100 32 slots 1 ports 3 Gbps 0x1 impl platform mode
ahci ahci.0: flags: ncq sntf stag pm led clo only pmp pio slum part ccc 
scsi0 : ahci
ata1: SATA max UDMA/133 mmio [mem 0x10000000-0x10000fff] port 0x100 irq 28
MXC MTD nand Driver 3.0
vcan: Virtual CAN interface driver
Freescale FlexCAN Driver 
FEC Ethernet Driver
fec_enet_mii_bus: probed
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller
fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1
fsl-ehci fsl-ehci.0: irq 18, io base 0x53f80000
fsl-ehci fsl-ehci.0: USB 2.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
fsl-ehci fsl-ehci.1: Freescale On-Chip EHCI Host Controller
fsl-ehci fsl-ehci.1: new USB bus registered, assigned bus number 2
ata1: SATA link down (SStatus 0 SControl 300)
fsl-ehci fsl-ehci.1: irq 14, io base 0x53f80200
fsl-ehci fsl-ehci.1: USB 2.0 started, EHCI 1.00
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 1 port detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usbcore: registered new interface driver usbserial
usbserial: USB Serial Driver core
USB Serial support registered for GSM modem (1-port)
usbcore: registered new interface driver option
option: v0.7.2:USB Driver for GSM modems
mice: PS/2 mouse device common for all mice
input: gpio-keys as /devices/platform/gpio-keys/input/input0
MXC keypad loaded
DA9052 TSI Device Driver, v1.0
input: da9052-tsi as /devices/virtual/input/input1
TSI Drv Successfully Inserted da9052-tsi
input: da9052-onkey as /devices/platform/imx-i2c.0/i2c-0/0-0048/da9052-onkey/input/input2
mxc_rtc mxc_rtc.0: rtc core: registered mxc_rtc as rtc0
i2c /dev entries driver
IR NEC protocol handler initialized
IR RC5(x) protocol handler initialized
IR RC6 protocol handler initialized
IR JVC protocol handler initialized
IR Sony protocol handler initialized
Linux video capture interface: v2.00
mxc_v4l2_output mxc_v4l2_output.0: Registered device video0
usbcore: registered new interface driver uvcvideo
USB Video Class driver (v0.1.0)
APM Battery Driver
check mma8450 chip ID
mma8450 0-001c: build time Oct  6 2011 02:19:40
input: mma8450 as /devices/platform/imx-i2c.0/i2c-0/0-001c/input/input3
add mma8450 i2c driver
add mma8451 i2c driver
MXC WatchDog Driver 2.0
MXC Watchdog # 0 Timer: initial timeout 60 sec
Bluetooth: Virtual HCI driver ver 1.3
Bluetooth: HCI UART driver ver 2.2
Bluetooth: HCIATH protocol initialized
Bluetooth: Generic Bluetooth USB driver ver 0.6
usbcore: registered new interface driver btusb
VPU initialized
mxsdhci: MXC Secure Digital Host Controller Interface driver
mxsdhci: MXC SDHCI Controller Driver. 
mmc0: SDHCI detect irq 0 irq 1 INTERNAL DMA
mxsdhci: MXC SDHCI Controller Driver. 
mmc1: SDHCI detect irq 203 irq 3 INTERNAL DMA
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
Cirrus Logic CS42888 ALSA SoC Codec Driver
sgtl5000-i2c 1-000a: SGTL5000 revision 17
No device for DAI imx-ssi-1-0
No device for DAI imx-ssi-1-1
No device for DAI imx-ssi-2-0
No device for DAI imx-ssi-2-1
DMA Sound Buffers Allocated:UseIram=1 buf->addr=f8002000 buf->area=e0842000 size=24576
DMA Sound Buffers Allocated:UseIram=1 buf->addr=cf480000 buf->area=fa310000 size=24576
asoc: SGTL5000 <-> imx-ssi-2-0 mapping ok
mmc0: new SDHC card at address f8a3
mmcblk0: mmc0:f8a3 SU04G 3.69 GiB 
 mmcblk0: p1
ALSA device list:
 #0: imx-3stack (SGTL5000)
TCP cubic registered
NET: Registered protocol family 17
can: controller area network core (rev 20090105 abi 8)
NET: Registered protocol family 29
can: raw protocol (rev 20090105)
can: broadcast manager protocol (rev 20090105 t)
Bluetooth: L2CAP ver 2.14
Bluetooth: L2CAP socket layer initialized
Bluetooth: SCO (Voice Link) ver 0.6
Bluetooth: SCO socket layer initialized
Bluetooth: RFCOMM TTY layer initialized
Bluetooth: RFCOMM socket layer initialized
Bluetooth: RFCOMM ver 1.11
Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Bluetooth: BNEP filters: protocol multicast
Bluetooth: HIDP (Human Interface Emulation) ver 1.2
VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 2
regulator_init_complete: incomplete constraints, leaving DA9052_BUCK_MEM on
regulator_init_complete: incomplete constraints, leaving DA9052_BUCK_PRO on
regulator_init_complete: incomplete constraints, leaving DA9052_BUCK_CORE on
regulator_init_complete: incomplete constraints, leaving DA9052_LDO10 on
regulator_init_complete: incomplete constraints, leaving DA9052_LDO8 on
regulator_init_complete: incomplete constraints, leaving DA9052_LDO7 on
regulator_init_complete: incomplete constraints, leaving DA9052_LDO6 on
regulator_init_complete: incomplete constraints, leaving DA9052_LDO4 on
regulator_init_complete: incomplete constraints, leaving DA9052_LDO3 on
regulator_init_complete: incomplete constraints, leaving DA9052_LDO2 on
regulator_init_complete: incomplete constraints, leaving DA9052_LDO1 on
mxc_rtc mxc_rtc.0: setting system clock to 1970-01-01 00:00:00 UTC (0)
eth0: Freescale FEC PHY driver [Generic PHY] (mii_bus:phy_addr=0:00, irq=-1)
IP-Config: Complete:
    device=eth0, addr=192.168.201.33, mask=255.255.255.0, gw=192.168.201.98,
    host=192.168.201.33, domain=, nis-domain=(none),
    bootserver=192.168.201.98, rootserver=192.168.201.98, rootpath=
Freeing init memory: 156K
Checking rootfs signature Success
Starting logging: OK
Starting mdev...
Starting portmap: done
Initializing random number generator... read-only file system detected...done
Starting network...
ip: RTNETLINK answers: File exists
Starting Network Interface Plugging Daemon: eth0.
Starting dropbear sshd: OK
Starting stunnel: Reading configuration from file /etc/stunnel/stunnel.conf
PRNG seeded successfully
stunnel.pem: No such file or directory (2)
OK
Starting NFS statd: done
Starting NFS services: exportfs: could not open /var/lib/nfs/.etab.lock for locking: errno 30 (Read-only file system)
exportfs: can't lock /var/lib/nfs/etab for writing
exportfs: could not open /var/lib/nfs/.xtab.lock for locking: errno 30 (Read-only file system)
exportfs: can't lock /var/lib/nfs/xtab for writing
done
Starting NFS daemon: rpc.nfsd: Unable to access /proc/fs/nfsd errno 2 (No such file or directory).
Please try, as root, 'mount -t nfsd nfsd /proc/fs/nfsd' and then restart rpc.nfsd to correct the problem
done
Starting NFS mountd: done
Starting domain name daemon: namedwarning: `named' uses 32-bit capabilities (legacy support in use)
failed
Welcome to Loco
loco login: