Hi,
On Tue, Jan 22, 2013 at 14:25:13, Peter Korsgaard wrote:
> >>>>> "Paul" == Paul Walmsley <paul@xxxxxxxxx> writes:
>
> Paul> Hi guys,
>
> Paul> Regarding the AM33xx test failures with appended DTBs, it would
> Paul> be very helpful if especially the TI people could try reproducing
> Paul> the problem. Otherwise it's going to cause problems with merging
> Paul> any new AM33xx patches, since I won't be able to test them
> Paul> without additional work. Plus, this is something that used to
> Paul> work up until d01e4afd, so something isn't right.
>
> Paul> You'll need to use the bootloader that TI originally shipped with
> Paul> the BeagleBones:
>
> Paul> U-Boot 2011.09-00009-gcf6e04d (Mar 08 2012 - 17:15:43)
>
> FYI, my beaglebone came with a slightly different U-Boot:
>
> U-Boot 2011.09-00000-gf63b270-dirty (Nov 14 2011 - 10:37:14)
>
> But I have the same behaviour. Recent kernels work with a modern U-Boot,
> but not the original. The build I'm doing is very similar to yours:
>
> git describe
> v3.8-rc4-71-g9a92841
>
> make ARCH=arm CROSS_COMPILE=arm-linux- omap2plus_defconfig
> echo CONFIG_ARM_APPENDED_DTB=y >> .config
> echo CONFIG_ARM_ATAG_DTB_COMPAT=y >> .config
> yes ''| make ARCH=arm CROSS_COMPILE=arm-linux- oldconfig
> make ARCH=arm CROSS_COMPILE=arm-linux-
> cat arch/arm/boot/dts/am335x-bone.dtb >> arch/arm/boot/zImage
> make ARCH=arm CROSS_COMPILE=arm-linux- uImage
>
> # old u-boot (ethernet not stable here, so load from sd)
>
> U-Boot SPL 2011.09-00000-gf63b270-dirty (Nov 14 2011 - 10:37:14)
> Texas Instruments Revision detection unimplemented
> No AC power, disabling frequency switch
> OMAP SD/MMC: 0
> reading u-boot.img
> reading u-boot.img
>
>
> U-Boot 2011.09-00000-gf63b270-dirty (Nov 14 2011 - 10:37:14)
>
> I2C: ready
> DRAM: 256 MiB
> No daughter card present
> NAND: HW ECC Hamming Code selected
> nand_get_flash_type: unknown NAND device: Manufacturer ID: 0x10, Chip ID: 0x10
> No NAND device found!!!
> 0 MiB
> MMC: OMAP SD/MMC: 0
> *** Warning - readenv() failed, using default environment
>
> Net: cpsw
> Hit any key to stop autoboot: 0
> U-Boot# mmc rescan
> U-Boot# fatload mmc 0:1 0x80200000 uImage.new
> reading uImage.new
>
> 3945127 bytes read
> U-Boot# setenv bootargs console=$console
> U-Boot# bootm 0x80200000
> ## Booting kernel from Legacy Image at 80200000 ...
> Image Name: Linux-3.8.0-rc4-00071-g9a92841
> Image Type: ARM Linux Kernel Image (uncompressed)
> Data Size: 3945063 Bytes = 3.8 MiB
> Load Address: 80008000
> Entry Point: 80008000
> Verifying Checksum ... OK
> Loading Kernel Image ... OK
> OK
>
> Starting kernel ...
>
> And it hangs. With a reasonably modern U-Boot it works:
>
I just re-built U-Boot from f63b270 and the kernel from 9a92841
using commands similar to Peter's and the kernel boots for me with
the appended DTB.
(For some reason U-Boot version string doesn't have the commit id
and I can't recollect what causes this)
U-Boot SPL 2011.09 (Jan 22 2013 - 18:06:56)
Texas Instruments Revision detection unimplemented
OMAP SD/MMC: 0
reading u-boot.img
reading u-boot.img
U-Boot 2011.09 (Jan 22 2013 - 16:00:25)
I2C: ready
DRAM: 256 MiB
WARNING: Caches not enabled
No daughter card present
NAND: HW ECC Hamming Code selected
nand_get_flash_type: unknown NAND device: Manufacturer ID: 0x10, Chip ID: 0x10
No NAND device found!!!
0 MiB
MMC: OMAP SD/MMC: 0
*** Warning - readenv() failed, using default environment
Net: cpsw
Hit any key to stop autoboot: 0
U-Boot#
U-Boot#
U-Boot# setenv bootargs console=$console
U-Boot# setenv serverip 172.24.133.119
U-Boot# setenv bootfile uImage
U-Boot# dhcp 80200000
link up on port 0, speed 100, full duplex
BOOTP broadcast 1
DHCP client bound to address 172.24.190.59
Using cpsw device
TFTP from server 172.24.133.119; our IP address is 172.24.190.59; sending through gateway 172.24.188.1
Filename 'uImage'.
Load address: 0x80200000
Loading: #################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
###################################################
done
Bytes transferred = 3917327 (3bc60f hex)
U-Boot# bootm 0x80200000
## Booting kernel from Legacy Image at 80200000 ...
Image Name: Linux-3.8.0-rc4-00071-g9a92841
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3917263 Bytes = 3.7 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 3.8.0-rc4-00071-g9a92841 (a0393953@psplinux063) (gcc version 4.5.3 20110311 (prerelease) (GCC) ) #1 SMP Tue Jan 22 17:50:24 IST 2013
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine: Generic AM33XX (Flattened Device Tree), model: TI AM335x BeagleBone
[ 0.000000] Memory policy: ECC disabled, Data cache writeback
[ 0.000000] AM335X ES1.0 (neon )
[ 0.000000] PERCPU: Embedded 9 pages/cpu @c0f24000 s12992 r8192 d15680 u36864
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 64768
[ 0.000000] Kernel command line: console=ttyO0,115200n8
[ 0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.000000] __ex_table already sorted, skipping sort
[ 0.000000] Memory: 255MB = 255MB total
[ 0.000000] Memory: 245376k/245376k available, 16768k reserved, 0K highmem
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[ 0.000000] vmalloc : 0xd0800000 - 0xff000000 ( 744 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xd0000000 ( 256 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
[ 0.000000] .text : 0xc0008000 - 0xc06d80d8 (6977 kB)
[ 0.000000] .init : 0xc06d9000 - 0xc072b2c0 ( 329 kB)
[ 0.000000] .data : 0xc072c000 - 0xc07bd9b8 ( 583 kB)
[ 0.000000] .bss : 0xc07bd9b8 - 0xc0d186b0 (5484 kB)
[ 0.000000] Hierarchical RCU implementation.
...
Paul,
The commit-id of U-Boot that you have is not present in my local tree. Will
need to track down which tree your U-Boot came from before experimenting.
Regards,
Vaibhav
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