L4Linux network and SD Access
Daniel (Xiaolong) Wang
xiaolongw at mail.usf.edu
Wed Aug 16 00:49:33 CEST 2017
Hi Adam,
I’m still in the process of enabling device driver for this iMX board. However no matter what I do (I added PINCTRL, added all drivers for IMX6 and compiled with the kernel) the following are the debug info printed out:
Take SPI as example:
bus: 'spi': add driver mtd_dataflash
initcall dataflash_driver_init+0x0/0x10 returned 0 after 976 usecs
calling spidev_init+0x0/0xbc @ 1
device class 'spidev': registering
bus: 'spi': add driver spidev
initcall spidev_init+0x0/0xbc returned 0 after 1953 usecs
calling fsl_spi_init+0x0/0x10 @ 1
bus: 'platform': add driver fsl_spi
initcall fsl_spi_init+0x0/0x10 returned 0 after 976 usecs
calling spi_imx_driver_init+0x0/0x10 @ 1
bus: 'platform': add driver spi_imx
bus: 'platform': driver_probe_device: matched device soc:aips-bus at 02000000:spba-bus at 02000000:ecspi at 02008000 with driver spi_imx
bus: 'platform': really_probe: probing driver spi_imx with device soc:aips-bus at 02000000:spba-bus at 02000000:ecspi at 02008000
spi_imx soc:aips-bus at 02000000:spba-bus at 02000000:ecspi at 02008000: could not find pctldev for node /soc/aips-bus at 02000000/iomuxc at 020e0000/imx6x-sg/ecspi1grp, deferring probe
spi_imx soc:aips-bus at 02000000:spba-bus at 02000000:ecspi at 02008000: no pinctrl handle
platform soc:aips-bus at 02000000:spba-bus at 02000000:ecspi at 02008000: Driver spi_imx requests probe deferral
platform soc:aips-bus at 02000000:spba-bus at 02000000:ecspi at 02008000: Added to deferred list
I think it is something related to PINCTRL driver, but I have no idea, how to fix it. Have you seen this before?
Thanks
-Dan
> On Jun 29, 2017, at 3:39 PM, Matthias Lange <matthias.lange at kernkonzept.com> wrote:
>
> Hi,
>
> On 06/29/2017 10:11 PM, Daniel (Xiaolong) Wang wrote:
>> Hi all,
>>
>> I want to give L4Linux access to SD card, and ethernet driver.
>> Initially I thought by run L4Linux kernel on top of L4re, drivers
>> built with L4Linux kernel can just work. After trying and reading the
>> email archive, seems like I need to configure the corresponding
>> capability in cfg. I’m very new to L4re environment is there any
>> tutorials or references that can help me understand it better? (I’m
>> currently reading the manual, my development board is a beagle bone
>> black)
>
> In case of ARM platforms this is (still) not an easy undertaking. What
> you have to do is basically this:
>
> 1. Enable the desired device drivers in your kernel configuration.
> 2. Make L4Linux compile.
> 3. Create a device tree which contains the device nodes of the desired
> devices.
> 4. Create an io configuration for L4Re with the devices and their
> resources and assign the desired devices to a vbus which is eventually
> given to L4Linux. You can read about io and its configuration here [1].
> 5. Boot your setup on the target. At this stage, you usually you have to
> instrument the device driver to debug the reasons why it is failing.
>
> Best,
> Matthias.
>
> [1] http://l4re.org/doc/io.html
>
>>
>> Also I’m trying to build a L4Linux with MMC driver. My configuration
>> is based on default arm_defconfig. I enabled
>>
>> * Make Linux be a Server * Bus driver for L4vbus * L4shm based
>> network driver * MMC/SD/SDIO card support -> HW reset support for
>> eMMC, MMC block device driver, Use bounce buffer for simple hosts,
>> SDIO UART/GPS class support, Secure Digital Host Controller Interface
>> Support, SDHCI platform and OF driver helper, MediaTek SD/MMC Card
>> Interface support * DOS/FAT/NT Filesystem -> MSDOS fs support, VFAT
>> fs support
>>
>> however, when it build the following errors show did I do something
>> wrong?
>>
>> LD drivers/i2c/busses/built-in.o LD
>> drivers/i2c/muxes/built-in.o LD drivers/i2c/built-in.o LD
>> drivers/idle/built-in.o CC drivers/input/input.o CC
>> drivers/input/input-compat.o CC drivers/input/input-mt.o CC
>> drivers/input/ff-core.o LD drivers/input/input-core.o CC
>> drivers/input/mousedev.o CC drivers/input/evdev.o LD
>> drivers/input/built-in.o LD drivers/iommu/built-in.o CC
>> drivers/irqchip/irqchip.o LD drivers/irqchip/built-in.o LD
>> drivers/leds/built-in.o LD drivers/lguest/built-in.o LD
>> drivers/macintosh/built-in.o LD
>> drivers/media/common/b2c2/built-in.o LD
>> drivers/media/common/saa7146/built-in.o LD
>> drivers/media/common/siano/built-in.o LD
>> drivers/media/common/v4l2-tpg/built-in.o LD
>> drivers/media/common/built-in.o LD
>> drivers/media/firewire/built-in.o LD
>> drivers/media/i2c/soc_camera/built-in.o LD
>> drivers/media/i2c/built-in.o LD
>> drivers/media/mmc/siano/built-in.o LD
>> drivers/media/mmc/built-in.o LD
>> drivers/media/pci/b2c2/built-in.o LD
>> drivers/media/pci/ddbridge/built-in.o LD
>> drivers/media/pci/dm1105/built-in.o LD
>> drivers/media/pci/mantis/built-in.o LD
>> drivers/media/pci/netup_unidvb/built-in.o LD
>> drivers/media/pci/ngene/built-in.o LD
>> drivers/media/pci/pluto2/built-in.o LD
>> drivers/media/pci/pt1/built-in.o LD
>> drivers/media/pci/pt3/built-in.o LD
>> drivers/media/pci/saa7146/built-in.o LD
>> drivers/media/pci/smipcie/built-in.o LD
>> drivers/media/pci/ttpci/built-in.o LD
>> drivers/media/pci/built-in.o LD
>> drivers/media/platform/omap/built-in.o LD
>> drivers/media/platform/built-in.o LD
>> drivers/media/rc/keymaps/built-in.o LD
>> drivers/media/rc/built-in.o LD drivers/media/tuners/built-in.o
>> LD drivers/media/usb/b2c2/built-in.o LD
>> drivers/media/usb/dvb-usb/built-in.o LD
>> drivers/media/usb/dvb-usb-v2/built-in.o LD
>> drivers/media/usb/s2255/built-in.o LD
>> drivers/media/usb/siano/built-in.o LD
>> drivers/media/usb/stkwebcam/built-in.o LD
>> drivers/media/usb/ttusb-budget/built-in.o LD
>> drivers/media/usb/ttusb-dec/built-in.o LD
>> drivers/media/usb/zr364xx/built-in.o LD
>> drivers/media/usb/built-in.o LD drivers/media/built-in.o LD
>> drivers/mfd/built-in.o LD drivers/misc/cb710/built-in.o LD
>> drivers/misc/eeprom/built-in.o LD
>> drivers/misc/lis3lv02d/built-in.o LD
>> drivers/misc/mic/bus/built-in.o LD drivers/misc/mic/built-in.o
>> LD drivers/misc/ti-st/built-in.o LD
>> drivers/misc/built-in.o CC drivers/mmc/card/block.o CC
>> drivers/mmc/card/queue.o LD drivers/mmc/card/mmc_block.o CC
>> drivers/mmc/card/sdio_uart.o LD drivers/mmc/card/built-in.o CC
>> drivers/mmc/core/core.o CC drivers/mmc/core/bus.o CC
>> drivers/mmc/core/host.o CC drivers/mmc/core/mmc.o CC
>> drivers/mmc/core/mmc_ops.o CC drivers/mmc/core/sd.o CC
>> drivers/mmc/core/sd_ops.o CC drivers/mmc/core/sdio.o CC
>> drivers/mmc/core/sdio_ops.o CC drivers/mmc/core/sdio_bus.o CC
>> drivers/mmc/core/sdio_cis.o CC drivers/mmc/core/sdio_io.o CC
>> drivers/mmc/core/sdio_irq.o CC drivers/mmc/core/quirks.o CC
>> drivers/mmc/core/slot-gpio.o CC drivers/mmc/core/pwrseq.o CC
>> drivers/mmc/core/debugfs.o LD drivers/mmc/core/mmc_core.o CC
>> drivers/mmc/core/pwrseq_simple.o CC
>> drivers/mmc/core/pwrseq_emmc.o LD drivers/mmc/core/built-in.o CC
>> drivers/mmc/host/sdhci.o CC drivers/mmc/host/mtk-sd.o CC
>> drivers/mmc/host/sdhci-pltfm.o CC
>> drivers/mmc/host/sdhci-of-arasan.o CC
>> drivers/mmc/host/sdhci-of-at91.o LD drivers/mmc/host/built-in.o
>> LD drivers/mmc/built-in.o CC drivers/net/Space.o CC
>> drivers/net/loopback.o CC drivers/net/l4shmnet.o LD
>> drivers/net/built-in.o LD drivers/nfc/built-in.o LD
>> drivers/nvme/host/built-in.o LD drivers/nvme/built-in.o CC
>> drivers/of/base.o CC drivers/of/device.o CC
>> drivers/of/platform.o CC drivers/of/fdt.o CC
>> drivers/of/fdt_address.o CC drivers/of/address.o CC
>> drivers/of/irq.o CC drivers/of/of_reserved_mem.o LD
>> drivers/of/built-in.o LD drivers/platform/built-in.o LD
>> drivers/power/built-in.o LD drivers/pwm/built-in.o CC
>> drivers/rtc/rtc-lib.o LD drivers/rtc/built-in.o LD
>> drivers/soc/bcm/built-in.o LD drivers/soc/fsl/built-in.o LD
>> drivers/soc/built-in.o CC drivers/tty/tty_io.o CC
>> drivers/tty/n_tty.o CC drivers/tty/tty_ioctl.o CC
>> drivers/tty/tty_ldisc.o CC drivers/tty/tty_buffer.o CC
>> drivers/tty/tty_port.o CC drivers/tty/tty_mutex.o CC
>> drivers/tty/tty_ldsem.o CC drivers/tty/pty.o CC
>> drivers/tty/sysrq.o LD drivers/tty/ipwireless/built-in.o CC
>> drivers/tty/serial/serial_core.o CC drivers/tty/serial/l4ser.o
>> CC drivers/tty/serial/l4ser_shm.o LD
>> drivers/tty/serial/built-in.o CC drivers/tty/vt/vt_ioctl.o CC
>> drivers/tty/vt/vc_screen.o CC drivers/tty/vt/selection.o CC
>> drivers/tty/vt/keyboard.o CC drivers/tty/vt/consolemap.o CC
>> drivers/tty/vt/consolemap_deftbl.o CC drivers/tty/vt/vt.o CC
>> drivers/tty/vt/defkeymap.o LD drivers/tty/vt/built-in.o LD
>> drivers/tty/built-in.o LD drivers/video/backlight/built-in.o CC
>> drivers/video/console/dummycon.o CC
>> drivers/video/console/fbcon.o CC
>> drivers/video/console/bitblit.o CC
>> drivers/video/console/softcursor.o LD
>> drivers/video/console/built-in.o CC
>> drivers/video/fbdev/core/fb_cmdline.o CC
>> drivers/video/fbdev/core/fb_notify.o CC
>> drivers/video/fbdev/core/fbmem.o CC
>> drivers/video/fbdev/core/fbmon.o CC
>> drivers/video/fbdev/core/fbcmap.o CC
>> drivers/video/fbdev/core/fbsysfs.o CC
>> drivers/video/fbdev/core/modedb.o CC
>> drivers/video/fbdev/core/fbcvt.o LD
>> drivers/video/fbdev/core/fb.o LD
>> drivers/video/fbdev/core/built-in.o LD
>> drivers/video/fbdev/omap2/omapfb/displays/built-in.o LD
>> drivers/video/fbdev/omap2/omapfb/dss/built-in.o LD
>> drivers/video/fbdev/omap2/omapfb/built-in.o LD
>> drivers/video/fbdev/omap2/built-in.o LD
>> drivers/video/fbdev/built-in.o CC drivers/video/logo/logo.o LOGO
>> drivers/video/logo/logo_linux_mono.c CC
>> drivers/video/logo/logo_linux_mono.o LOGO
>> drivers/video/logo/logo_linux_vga16.c CC
>> drivers/video/logo/logo_linux_vga16.o LOGO
>> drivers/video/logo/logo_linux_clut224.c CC
>> drivers/video/logo/logo_linux_clut224.o LD
>> drivers/video/logo/built-in.o LOGO
>> drivers/video/logo/logo_superh_mono.c LOGO
>> drivers/video/logo/clut_vga16.c LOGO
>> drivers/video/logo/logo_blackfin_vga16.c LOGO
>> drivers/video/logo/logo_superh_vga16.c LOGO
>> drivers/video/logo/logo_blackfin_clut224.c LOGO
>> drivers/video/logo/logo_dec_clut224.c LOGO
>> drivers/video/logo/logo_m32r_clut224.c LOGO
>> drivers/video/logo/logo_mac_clut224.c LOGO
>> drivers/video/logo/logo_parisc_clut224.c LOGO
>> drivers/video/logo/logo_sgi_clut224.c LOGO
>> drivers/video/logo/logo_spe_clut224.c LOGO
>> drivers/video/logo/logo_sun_clut224.c LOGO
>> drivers/video/logo/logo_superh_clut224.c LD
>> drivers/video/built-in.o LD drivers/built-in.o LD
>> sound/built-in.o LD firmware/built-in.o CC
>> arch/l4/drivers/vbus/l4vbus.o LD
>> arch/l4/drivers/vbus/built-in.o CC arch/l4/drivers/events.o LD
>> arch/l4/drivers/built-in.o CC net/socket.o LD
>> net/802/built-in.o CC net/core/sock.o CC
>> net/core/request_sock.o CC net/core/skbuff.o CC
>> net/core/datagram.o CC net/core/stream.o CC net/core/scm.o
>> CC net/core/gen_stats.o CC net/core/gen_estimator.o CC
>> net/core/net_namespace.o CC net/core/secure_seq.o CC
>> net/core/flow_dissector.o CC net/core/sysctl_net_core.o CC
>> net/core/dev.o CC net/core/ethtool.o CC
>> net/core/dev_addr_lists.o CC net/core/dst.o CC
>> net/core/netevent.o CC net/core/neighbour.o CC
>> net/core/rtnetlink.o CC net/core/utils.o CC
>> net/core/link_watch.o CC net/core/filter.o CC
>> net/core/sock_diag.o CC net/core/dev_ioctl.o CC
>> net/core/tso.o CC net/core/sock_reuseport.o CC
>> net/core/flow.o CC net/core/net-sysfs.o CC
>> net/core/net-procfs.o LD net/core/built-in.o CC
>> net/ethernet/eth.o LD net/ethernet/built-in.o CC
>> net/ipv4/route.o CC net/ipv4/inetpeer.o CC
>> net/ipv4/protocol.o CC net/ipv4/ip_input.o CC
>> net/ipv4/ip_fragment.o CC net/ipv4/ip_forward.o CC
>> net/ipv4/ip_options.o CC net/ipv4/ip_output.o CC
>> net/ipv4/ip_sockglue.o CC net/ipv4/inet_hashtables.o CC
>> net/ipv4/inet_timewait_sock.o CC
>> net/ipv4/inet_connection_sock.o CC net/ipv4/tcp.o CC
>> net/ipv4/tcp_input.o CC net/ipv4/tcp_output.o CC
>> net/ipv4/tcp_timer.o CC net/ipv4/tcp_ipv4.o CC
>> net/ipv4/tcp_minisocks.o CC net/ipv4/tcp_cong.o CC
>> net/ipv4/tcp_metrics.o CC net/ipv4/tcp_fastopen.o CC
>> net/ipv4/tcp_recovery.o CC net/ipv4/tcp_offload.o CC
>> net/ipv4/datagram.o CC net/ipv4/raw.o CC net/ipv4/udp.o CC
>> net/ipv4/udplite.o CC net/ipv4/udp_offload.o CC
>> net/ipv4/arp.o CC net/ipv4/icmp.o CC net/ipv4/devinet.o CC
>> net/ipv4/af_inet.o CC net/ipv4/igmp.o CC
>> net/ipv4/fib_frontend.o CC net/ipv4/fib_semantics.o CC
>> net/ipv4/fib_trie.o CC net/ipv4/inet_fragment.o CC
>> net/ipv4/ping.o CC net/ipv4/ip_tunnel_core.o CC
>> net/ipv4/gre_offload.o CC net/ipv4/sysctl_net_ipv4.o CC
>> net/ipv4/proc.o CC net/ipv4/xfrm4_mode_beet.o CC
>> net/ipv4/xfrm4_mode_transport.o CC net/ipv4/xfrm4_mode_tunnel.o
>> CC net/ipv4/ipconfig.o CC net/ipv4/inet_diag.o CC
>> net/ipv4/tcp_diag.o CC net/ipv4/tcp_cubic.o CC
>> net/ipv4/xfrm4_policy.o CC net/ipv4/xfrm4_state.o CC
>> net/ipv4/xfrm4_input.o CC net/ipv4/xfrm4_output.o CC
>> net/ipv4/xfrm4_protocol.o LD net/ipv4/built-in.o CC
>> net/ipv6/addrconf_core.o CC net/ipv6/exthdrs_core.o CC
>> net/ipv6/ip6_checksum.o CC net/ipv6/ip6_icmp.o CC
>> net/ipv6/output_core.o CC net/ipv6/protocol.o CC
>> net/ipv6/ip6_offload.o CC net/ipv6/tcpv6_offload.o CC
>> net/ipv6/exthdrs_offload.o LD net/ipv6/built-in.o CC
>> net/netlink/af_netlink.o CC net/netlink/genetlink.o LD
>> net/netlink/built-in.o CC net/packet/af_packet.o LD
>> net/packet/built-in.o CC net/sched/sch_generic.o CC
>> net/sched/sch_mq.o LD net/sched/built-in.o CC
>> net/unix/af_unix.o CC net/unix/garbage.o CC
>> net/unix/sysctl_net_unix.o LD net/unix/unix.o LD
>> net/unix/built-in.o CC net/xfrm/xfrm_policy.o CC
>> net/xfrm/xfrm_state.o CC net/xfrm/xfrm_hash.o CC
>> net/xfrm/xfrm_input.o CC net/xfrm/xfrm_output.o CC
>> net/xfrm/xfrm_sysctl.o CC net/xfrm/xfrm_replay.o LD
>> net/xfrm/built-in.o CC net/sysctl_net.o LD net/built-in.o
>> CC lib/lockref.o CC lib/bcd.o CC lib/div64.o CC
>> lib/sort.o CC lib/parser.o CC lib/halfmd4.o CC
>> lib/debug_locks.o CC lib/random32.o CC
>> lib/bust_spinlocks.o CC lib/kasprintf.o CC lib/bitmap.o CC
>> lib/scatterlist.o CC lib/gcd.o CC lib/lcm.o CC
>> lib/list_sort.o CC lib/uuid.o CC lib/flex_array.o CC
>> lib/iov_iter.o CC lib/clz_ctz.o CC lib/bsearch.o CC
>> lib/find_bit.o CC lib/llist.o CC lib/memweight.o CC
>> lib/kfifo.o CC lib/percpu-refcount.o CC lib/percpu_ida.o CC
>> lib/rhashtable.o CC lib/reciprocal_div.o CC lib/once.o CC
>> lib/string_helpers.o CC lib/hexdump.o CC lib/kstrtox.o CC
>> lib/pci_iomap.o CC lib/iomap_copy.o CC lib/devres.o CC
>> lib/hweight.o CC lib/bitrev.o CC lib/crc16.o HOSTCC
>> lib/gen_crc32table GEN lib/crc32table.h CC lib/crc32.o CC
>> lib/genalloc.o CC lib/fonts/fonts.o CC
>> lib/fonts/font_8x8.o CC lib/fonts/font_8x16.o LD
>> lib/fonts/font.o LD lib/fonts/built-in.o CC
>> lib/lz4/lz4_decompress.o LD lib/lz4/built-in.o CC
>> lib/lzo/lzo1x_decompress_safe.o LD lib/lzo/lzo_decompress.o LD
>> lib/lzo/built-in.o CC lib/xz/xz_dec_syms.o CC
>> lib/xz/xz_dec_stream.o CC lib/xz/xz_dec_lzma2.o CC
>> lib/xz/xz_dec_bcj.o LD lib/xz/xz_dec.o LD
>> lib/xz/built-in.o CC lib/zlib_inflate/inffast.o CC
>> lib/zlib_inflate/inflate.o CC lib/zlib_inflate/infutil.o CC
>> lib/zlib_inflate/inftrees.o CC lib/zlib_inflate/inflate_syms.o
>> LD lib/zlib_inflate/zlib_inflate.o LD
>> lib/zlib_inflate/built-in.o CC lib/swiotlb.o CC
>> lib/iommu-helper.o CC lib/iommu-common.o CC lib/syscall.o
>> CC lib/nlattr.o CC lib/dynamic_queue_limits.o CC
>> lib/net_utils.o LD lib/built-in.o CC lib/argv_split.o CC
>> lib/bug.o CC lib/cmdline.o CC lib/ctype.o CC
>> lib/dec_and_lock.o CC lib/decompress.o CC
>> lib/decompress_bunzip2.o CC lib/decompress_inflate.o CC
>> lib/decompress_unlz4.o CC lib/decompress_unlzma.o CC
>> lib/decompress_unlzo.o CC lib/decompress_unxz.o CC
>> lib/dma-noop.o CC lib/dump_stack.o CC lib/earlycpio.o CC
>> lib/extable.o CC lib/fdt.o CC lib/fdt_empty_tree.o CC
>> lib/fdt_ro.o CC lib/fdt_rw.o CC lib/fdt_strerror.o CC
>> lib/fdt_sw.o CC lib/fdt_wip.o CC lib/flex_proportions.o CC
>> lib/idr.o CC lib/int_sqrt.o CC lib/ioremap.o CC
>> lib/irq_regs.o CC lib/is_single_threaded.o CC lib/klist.o
>> CC lib/kobject.o CC lib/kobject_uevent.o CC lib/md5.o
>> CC lib/nmi_backtrace.o CC lib/nodemask.o CC
>> lib/plist.o CC lib/radix-tree.o CC lib/ratelimit.o CC
>> lib/rbtree.o CC lib/seq_buf.o CC lib/sha1.o CC
>> lib/show_mem.o CC lib/string.o CC lib/timerqueue.o CC
>> lib/vsprintf.o AR lib/lib.a CC
>> arch/l4/lib/arch-arm/../proc.o CC
>> arch/l4/lib/arch-arm/../debugfs.o LD
>> arch/l4/lib/arch-arm/built-in.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/ashldi3.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/ashrdi3.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/backtrace.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/bswapsdi2.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/call_with_stack.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/changebit.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/clearbit.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/copy_page.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/csumipv6.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/csumpartial.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/csumpartialcopy.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/delay-loop.o CC
>> arch/l4/lib/arch-arm/../../../arm/lib/delay.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/div64.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/findbit.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/io-readsb.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/io-readsl.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/io-readsw-armv4.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/io-writesb.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/io-writesl.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/io-writesw-armv4.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/lib1funcs.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/lshrdi3.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/memchr.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/memcpy.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/memmove.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/memset.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/memzero.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/muldi3.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/setbit.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/strchr.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/strrchr.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/testchangebit.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/testclearbit.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/testsetbit.o AS
>> arch/l4/lib/arch-arm/../../../arm/lib/ucmpdi2.o CC
>> arch/l4/lib/arch-arm/../csumpartialcopyuser.o CC
>> arch/l4/lib/arch-arm/../memcpy_user.o CC
>> arch/l4/lib/arch-arm/../pte.o CC
>> arch/l4/lib/arch-arm/../uaccess.o AR arch/l4/lib/arch-arm/lib.a
>> LD arch/l4/l4lxlib/generic/built-in.o CC
>> arch/l4/l4lxlib/generic/irq_gen.o CC
>> arch/l4/l4lxlib/generic/legacy.o CC
>> arch/l4/l4lxlib/generic/thread_gen.o AR
>> arch/l4/l4lxlib/generic/lib.a LD
>> arch/l4/l4lxlib/l4env/built-in.o CC
>> arch/l4/l4lxlib/l4env/irq_vcpu.o CC
>> arch/l4/l4lxlib/l4env/memory.o CC arch/l4/l4lxlib/l4env/misc.o
>> CC arch/l4/l4lxlib/l4env/task.o CC
>> arch/l4/l4lxlib/l4env/thread.o AR arch/l4/l4lxlib/l4env/lib.a LD
>> virt/lib/built-in.o LD virt/built-in.o LINK vmlinux LD
>> vmlinux.o MODPOST vmlinux.o GEN .version CHK
>> include/generated/compile.h UPD include/generated/compile.h CC
>> init/version.o LD init/built-in.o drivers/built-in.o: In
>> function `sdhci_at91_probe':
>> /home/daniel/Desktop/l4re-snapshot/src/l4linux/build-arm/../drivers/mmc/host/sdhci-of-at91.c:212:
>> undefined reference to `clk_set_rate' make[1]: *** [vmlinux] Error 1
>> make[1]: Leaving directory
>> `/home/daniel/Desktop/l4re-snapshot/src/l4linux/build-arm' make: ***
>> [sub-make] Error 2
>>
>>
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