ELDK 4.2/kilauea/3.5+ kernel broken

[Robert Berger]

Hi,

The attached patch from here:
http://thread.gmane.org/gmane.linux.ports.ppc.embedded/49637/focus=49903
works as far as I can say from > 3.2 kernels until 3.4.12 and applies
happily even on 3.5.

Unfortunately the last kernel version which boots on a kilauea with ELDK
4.2 is v3.4.12 (with the attached patch applied). BTW v3.6 does not need
the patch anymore, but exposes the same behavior as described below.

A default config with PPC_EARLY_DEBUG_40x makes the board stuck instead
of rebooting, which happens from v3.5 onwards (with patch applied):

U-Boot 2012.10-classic-rber-dirty (Oct 17 2012 - 11:35:47)

CPU:   AMCC PowerPC 405EX Rev. A at 533.333 MHz (PLB=177 OPB=88 EBC=88)
       Security support
       Bootstrap Option H - Boot ROM Location I2C (Addr 0x52)
       16 kB I-Cache 16 kB D-Cache
Board: Kilauea - AMCC PPC405EX Evaluation Board (CPLD rev. 0)
I2C:   ready
DRAM:  256 MiB (ECC not enabled, 355 MHz, CL4)
Reserving 16384k for kernel logbuffer at 0fffb000
Top of RAM usable for U-Boot at: 0fffb000
Reserving 432k for U-Boot at: 0ff8e000
Reserving 1040k for malloc() at: 0fe8a000
Reserving 132 Bytes for Board Info at: 0fe89f7c
Reserving 104 Bytes for Global Data at: 0fe89f14
Stack Pointer at: 0fe89f00
New Stack Pointer is: 0fe89f00
Now running in RAM - U-Boot at: 0ff8e000
Flash: 64 MiB
NAND:  64 MiB
PCI:   Bus Dev VenId DevId Class Int
PCIE0: link is not up.
PCIE1: link is not up.
U-Boot relocated to 0ff8e000
Net:   ppc_4xx_eth0, ppc_4xx_eth1

Hit any key to stop autoboot:  0
=> run rootfs_nfs

Waiting for PHY auto negotiation to complete... done
ENET Speed is 1000 Mbps - FULL duplex connection (EMAC0)
Using ppc_4xx_eth0 device
TFTP from server 192.168.5.5; our IP address is 192.168.5.11
Filename 'kilauea/uImage'.
Load address: 0x400000
Loading: #################################################################
         ######################################################
done
Bytes transferred = 1738410 (1a86aa hex)
Using ppc_4xx_eth0 device
TFTP from server 192.168.5.5; our IP address is 192.168.5.11
Filename 'kilauea/kilauea.dtb'.
Load address: 0x800000
Loading: #
done
Bytes transferred = 8667 (21db hex)
## Booting kernel from Legacy Image at 00400000 ...
   Image Name:   Linux-3.5.0-classic-rber-dirty
   Created:      2012-10-17  16:48:39 UTC
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    1738346 Bytes = 1.7 MiB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 00800000
   Booting using the fdt blob at 0x00800000
   Uncompressing Kernel Image ... OK
   Loading Device Tree to 00ffa000, end 00fff1da ... OK


---> here the board reboots into u-boot <---

U-Boot 2012.10-classic-rber-dirty (Oct 17 2012 - 11:35:47)

CPU:   AMCC PowerPC 405EX Rev. A at 533.333 MHz (PLB=177 OPB=88 EBC=88)
       Security support
       Bootstrap Option H - Boot ROM Location I2C (Addr 0x52)
       16 kB I-Cache 16 kB D-Cache
Board: Kilauea - AMCC PPC405EX Evaluation Board (CPLD rev. 0)
...


Please advise.

Regards,

Robert

..."Teaching of beginners should be done by a master, not by a
hack." - Deming

My public pgp key is available,at:
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x90320BF1


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