Hello,
i've set up a micro SD card with VFAT on partition 1, EXT2 on partition 2.
Partition 2 is buildroot's output/images/rootfs.ext2, copied with "dd" to the
micro SD card.
On partition 1 i have u-boot and i start the kernel like this:
mmc init
mmc rescan 0
run loaduimage
bootm 0x82000000
Then i see the kernel boot log and i see it hanging:
[ 1.215850] twl_rtc twl_rtc: setting system clock to 2000-01-01 00:05:25
UTC (946685125)
[ 1.226806] Waiting for root device /dev/mmcblk0p2...
[ 1.369873] mmc0: host does not support reading read-only switch. assuming
write-enable.
[ 1.389953] mmc0: new SDHC card at address e624
---> no more output
I use buildroot-2011.02, the kernel is 2.6.37.
In the kernel configuration i have set:
TI OMAP Multimedia Card Interface support (MMC_OMAP)
TI OMAP High Speed Multimedia Card Interface support (MMC_OMAP_HS)
Can anybody give me a hint why the kernel does not continue to boot?
Best regards,
Torsten.
maybe a silly question…have you tested your kernel/build via NFS…ie “tftp boot uImage” & “NFS mount rootfs”?
Hello,
i've set up a micro SD card with VFAT on partition 1, EXT2 on partition 2.
Partition 2 is buildroot's output/images/rootfs.ext2, copied with "dd" to the
micro SD card.
Hi Torsten,
Are you sure you are doing the copy correctly?
sudo tar -xzf rootfs.tar.gz -C media/destination
Always works for me.
On partition 1 i have u-boot and i start the kernel like this:
mmc init
mmc rescan 0
run loaduimage
bootm 0x82000000
Then i see the kernel boot log and i see it hanging:
[ 1.215850] twl_rtc twl_rtc: setting system clock to 2000-01-01 00:05:25
UTC (946685125)
[ 1.226806] Waiting for root device /dev/mmcblk0p2...
[ 1.369873] mmc0: host does not support reading read-only switch. assuming
write-enable.
[ 1.389953] mmc0: new SDHC card at address e624
---> no more output
I use buildroot-2011.02, the kernel is 2.6.37.
In the kernel configuration i have set:
TI OMAP Multimedia Card Interface support (MMC_OMAP)
TI OMAP High Speed Multimedia Card Interface support (MMC_OMAP_HS)
Can anybody give me a hint why the kernel does not continue to boot?
Thats a tough call with this little info. Here is part of my xm bootlog:
[ 4.287384] mmc0: host does not support reading read-only switch. assuming wr
ite-enable.
[ 4.298645] mmc0: new high speed SDHC card at address 1234
[ 4.307037] mmcblk0: mmc0:1234 SA04G 3.67 GiB
[ 4.318267] mmcblk0: p1 p2 p3
[ 4.512725] usb 1-2.1: new high speed USB device using ehci-omap and address
3
[ 4.638244] usb 1-2.1: New USB device found, idVendor=0424, idProduct=ec00
[ 4.645538] usb 1-2.1: New USB device strings: Mfr=0, Product=0, SerialNumber
=0
[ 4.658721] smsc95xx v1.0.4
[ 4.749145] smsc95xx 1-2.1:1.0: usb0: register 'smsc95xx' at usb-ehci-omap.0-
2.1, smsc95xx USB 2.0 Ethernet, 8e:bc:ee:cc:8a:9b
Regards, Steve
Hello,
the problem was the kernel configuration, i configured MMC cards but i did not
enable the "Block Layer". It seems in the OMAP specific kernel you can't rely
that every dependency is correctly set (enabling MMC is possible without block
layer).
After adapting /etc/inittab i can start /bin/sh
Best regards,
Torsten.