<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial"><DIV>Hi:</DIV>
<DIV> My board is a custom MPC8260 board, with 4MB flash,128MB SDRAM.<BR>I modified pq2fads.dts and pq2fads_defconfig,</DIV>
<DIV>then compile the kernel.The kernel halt after displaying "Booting using OF flat tree.".</DIV>
<DIV> </DIV>
<DIV>Serial Console:</DIV>
<DIV>U-Boot 2011.12 (Mar 30 2012 - 15:57:39)</DIV>
<DIV>MPC8260 Reset Status: External Soft, External Hard</DIV>
<DIV>MPC8260 Clock Configuration<BR> - Bus-to-Core Mult 4.5x, VCO Div 2, 60x Bus Freq 22-65 , Core Freq 100-300<BR> - dfbrg 1, corecnf 0x17, busdf 5, cpmdf 1, plldf 0, pllmf 2, pcidf 3<BR> - vco_out 399999996, scc_clk 99999999, brg_clk 24999999<BR> - cpu_clk 299999997, cpm_clk 199999998, bus_clk 66666666</DIV>
<DIV>CPU: MPC8260 (HiP4 Rev 14, Mask B.1 4K25A) at 300 MHz<BR>Board: SJ3208 TDM to EtherNet <BR>SDRAM: 128 MiB<BR>Top of RAM usable for U-Boot at: 08000000<BR>Reserving 261k for U-Boot at: 07fbe000<BR>Reserving 256k for malloc() at: 07f7e000<BR>Reserving 76 Bytes for Board Info at: 07f7dfb4<BR>Reserving 108 Bytes for Global Data at: 07f7df48<BR>Stack Pointer at: 07f7df28<BR>New Stack Pointer is: 07f7df28<BR>Now running in RAM - U-Boot at: 07fbe000<BR>FLASH: flash_protect ON: from 0x20000000 to 0x2003BFFF<BR>protect on 0<BR>protect on 1<BR>protect on 2<BR>protect on 3<BR>protect on 4<BR>protect on 5<BR>protect on 6<BR>protect on 7<BR>protect on 8<BR>flash_protect ON: from 0x20060000 to 0x2007FFFF<BR>protect on 10<BR>4 MiB<BR>*** Warning - bad CRC, using default environment</DIV>
<DIV>Destroy Hash Table: 07ffcf04 table = (null)<BR>Create Hash Table: N=91<BR>INSERT: table 07ffcf04, filled 1/97 rv 07f7e148 ==> name="bootargs" value="console=ttyCPM0,9600 root=/dev/ram0"<BR>INSERT: table 07ffcf04, filled 2/97 rv 07f7e2bc ==> name="bootcmd" value="bootm 0x20080000 0x20240000"<BR>INSERT: table 07ffcf04, filled 3/97 rv 07f7e2ec ==> name="bootdelay" value="5"<BR>INSERT: table 07ffcf04, filled 4/97 rv 07f7e19c ==> name="baudrate" value="9600"<BR>INSERT: table 07ffcf04, filled 5/97 rv 07f7e574 ==> name="ethaddr" value="00:10:EC:D0:30:88"<BR>INSERT: table 07ffcf04, filled 6/97 rv 07f7e178 ==> name="ipaddr" value="12.13.38.221"<BR>INSERT: table 07ffcf04, filled 7/97 rv 07f7e550 ==> name="serverip" value="12.13.38.222"<BR>INSERT: table 07ffcf04, filled 8/97 rv 07f7e4d8 ==> name="gatewayip" value="12.13.38.254"<BR>INSERT: table 07ffcf04, filled 9/97 rv 07f7e34c ==> name="netmask" value="255.255.255.0"<BR>INSERT: free(data = 07f7e008)<BR>INSERT: done<BR>In: serial<BR>Out: serial<BR>Err: serial<BR>U-Boot relocated to 07fbe000<BR>Net: FCC1<BR>Reset Ethernet PHY<BR>### main_loop entered: bootdelay=5</DIV>
<DIV>### main_loop: bootcmd="bootm 0x20080000 0x20240000"<BR>Hit any key to stop autoboot: 0 <BR>=> bootm 0x20080000 0x20240000 0x203ff000<BR>## Current stack ends at 0x07f7dd10<BR>* kernel: cmdline image address = 0x20080000<BR>## Booting kernel from Legacy Image at 20080000 ...<BR> Image Name: Linux-3.2.13.Jerry_Test_V1.1<BR> Image Type: PowerPC Linux Kernel Image (gzip compressed)<BR> Data Size: 1527637 Bytes = 1.5 MiB<BR> Load Address: 00000000<BR> Entry Point: 00000000<BR> Verifying Checksum ... OK<BR> kernel data at 0x20080040, len = 0x00174f55 (1527637)<BR>* ramdisk: cmdline image address = 0x20240000<BR>## Loading init Ramdisk from Legacy Image at 20240000 ...<BR> Image Name: SJ3208_Ramdisk_01<BR> Image Type: PowerPC Linux RAMDisk Image (gzip compressed)<BR> Data Size: 1730966 Bytes = 1.7 MiB<BR> Load Address: 00000000<BR> Entry Point: 00000000<BR> Verifying Checksum ... OK<BR> ramdisk start = 0x20240040, ramdisk end = 0x203e69d6<BR>* fdt: cmdline image address = 0x203ff000<BR>## Checking for 'FDT'/'FDT Image' at 203ff000<BR>* fdt: raw FDT blob<BR>## Flattened Device Tree blob at 203ff000<BR> Booting using the fdt blob at 0x203ff000<BR> of_flat_tree at 0x203ff000 size 0x00000fbb<BR> Uncompressing Kernel Image ... OK<BR> kernel loaded at 0x00000000, end = 0x0030fda0<BR>## initrd_high = 0xffffffff, copy_to_ram = 1<BR> Loading Ramdisk to 07dd6000, end 07f7c996 ... OK<BR> ramdisk load start = 0x07dd6000, ramdisk load end = 0x07f7c996<BR>## device tree at 203ff000 ... 203fffba (len=16315 [0x3FBB])<BR> Loading Device Tree to 003fc000, end 003fffba ... OK<BR>Updating property <A href="mailto:'/soc@f0000000/cpm@119c0/ethernet@11320/mac-address'">'/soc@f0000000/cpm@119c0/ethernet@11320/mac-address'</A> = 00 10 ec d0 30 88<BR>Updating property <A href="mailto:'/soc@f0000000/cpm@119c0/ethernet@11320/local-mac-address'">'/soc@f0000000/cpm@119c0/ethernet@11320/local-mac-address'</A> = 00 10 ec d0 30 88<BR>Updating property 'clock-frequency' = 01 7d 78 3f<BR>Updating property 'bus-frequency' = 03 f9 40 aa<BR>Updating property 'timebase-frequency' = 00 fe 50 2a<BR>Updating property 'clock-frequency' = 11 e1 a2 fd<BR>## Transferring control to Linux (at address 00000000) ...<BR> Booting using OF flat tree...<BR></DIV>
<DIV>And Log_buf as follow:</DIV>
<DIV>20120331:log_buffer as follow <BR><6>Using Freescale PQ2FADS machine description.<BR><3>Cannot reserve gpages without hugetlb enabled.<BR><5>Linux version 3.2.13.Jerry_1.0_Test (<A href="mailto:jerry@jerry-desktop">jerry@jerry-desktop</A>) (gcc version 4.2.2) #1 Fri Mar 30 1 1:07:35 CST 2012.<BR><4>Found initrd at 0xc7dd6000:0xc7f7c996.<BR><4>Machine check in kernel mode..<BR><4>Caused by (from SRR1=41030): Transfer error ack signal.<BR><4>Oops: Machine check, sig: 7 [#1].<BR><4>Freescale PQ2FADS.<BR><4>NIP: c00175c0 LR: c0328a9c CTR:00002710.<BR><4>REGS: c035bed0 TRAP 0200 Not tainted (3.2.13.Jerry_1.0_Test).<BR><4>MSR: 00041030 <ME,IR,DR> CR: 22022024 XER: 20000000.<BR><4>TASK =c0349478[0] 'swapper' THREAD: c035a000.<BR><4>GPR00: 00002710 c035bf80 c0349478 80010000 00000000 c037cefc f00095a90000a000 .<BR><4>GPR08: 00000008 fdfd19c0 00000000 c0360000 c036339c 02040000 00000000 00000000 .<BR><4>GPR16: 07ff0bac 07fe9728 00000000 00000000 00000000 00000000 00000000 00000000 .<BR><4>GPR24: 00000000 00000000 40000000 07ffcf88 c0360000 c03613ec c035e020 00001032 .<BR><4>NIP [c00175c0] cpm_command+0x4c/0xb0.<BR><4>LR [c0328a9c] pq2fads_setup_arch+0x3c/0x260.<BR><4>Call Trace:.<BR><4>[c035bf80] [c03613ec] ppc_md+0x0/0xd8 (unreliable).<BR><4>[c035bf90] [c0328a9c] pq2fads_setup_arch+0x3c/0x260.<BR><4>[c035bfb0] [c0324e58] setup_arch+0x150/0x18c.<BR><4>[c035bfc0] [c0320864] start_kernel+0x84/0x2e0.<BR><4>[c035bff0] [00003438] 0x3438.<BR><4>Instruction dump:.<BR><4>3d60c036 64630001 7c632378 812b00f4 7c0004ac 90690000 38002710 7c0903a6 .<BR><4>48000008 4240003c 812b00f4 7c0004ac.<80090000> 0c000000 4c00012c 74090001 .<BR><4>---[end trace 31fd0ba7d8756001 ]---.<BR><0>Kernel panic - not syncing: Attempted to kill the idle task!.<BR><4>Call Trace:.<BR><4>[c035bdb0] [c0007f08] show_stack+0x4c/0x16c (unreliable).<BR><4>[c035bdf0] [c001e714] panic+0xa8/0x1f4.<BR><4>[c035be40] [c00227a8] do_exit+0x5a4/0x658.<BR><4>[c035be80] [c000ba98] kerne l_bad_stack+0x0/0x4c.<BR><4>[c035bea0] [c000bcc0] machine_check_exception+0xe4/0x170<BR><4>[c035bec0] [c000f334] ret_from_except_full+0x0/0x4c.<BR><4>--- Exception: 200 at cpm_command+0x4c/0xb0.<BR><4> LR = pq2fads_setup_arch+0x3c/0x260<BR><4>[c035bf80] [c03613ec] ppc_md+0x0/0xd8 (unreliable).<BR><4>[c035bf90] [c0328a9c] pq2fads_setup_arch+0x3c/0x260.<BR><4>[c035bfb0] [c0324e58] setup_arch+0x150/0x18c.<BR><4>[c035bfc0] [c0320864] start_kernel+0x84/0x2e0.<BR><4>[c035bff0] [00003438] 0x3438.<BR><0>Rebooting in 180 seconds......</DIV>
<DIV> </DIV>
<DIV>I have no idea about this,<BR>u-boot,Flat device tree ,kernel,Ramdisk ,<SPAN closure_uid_zdss5b="175" Pc="null">That</SPAN> <SPAN class="hps" closure_uid_zdss5b="176" Pc="null">was wrong</SPAN><SPAN closure_uid_zdss5b="177" Pc="null">?</SPAN>? <BR><BR>Best regards.<BR>Jerry<BR></DIV></div><br><br><span title="neteasefooter"><span id="netease_mail_footer"></span></span>