I ported u-boot to custom board and it works fine :) but kernel hangs during initialization :(

It hangs in the function free_area_init_core() in the following code:   for (i = 0; i < size; i++) {     struct page *page = mem_map + offset + 1;     ....   } function is called from:  start_kernel() - setup_arch() - paging_init() - free_area_init()

I made sure that: a) IMMR_ADDR (Linux) = CFG_IMMR (u-boot) = 0x02000000 b) struct bd_info are the same in Linux an u-boot c) CONFIGURE_CLOCKS_IN_MHZ is not defined - I have kernel 2.4.24

Do you have any idea what I can do? What is the problem?

I use ELDK 3.0. Kernel is from this distribution as well. Configuration of my board for Linux is based on TQM8260 but my console is on SCC1. Log of the session is as follows

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U-Boot 1.0.2 (Jul 27 2004 - 10:46:08)

MPC8260 Reset Status: External Soft, External Hard

MPC8260 Clock Configuration  - Bus-to-Core Mult 8x, VCO Div 2, 60x Bus Freq  12-38 , Core Freq 100-300  - dfbrg 0, corecnf 0x1c, busdf 11, cpmdf 1, plldf 0, pllmf 5  - vco_out  396000000, scc_clk   99000000, brg_clk   99000000  - cpu_clk  264000000, cpm_clk  198000000, bus_clk   33000000

CPU:   MPC8260 (HiP4 Rev 14, Mask B.1 4K25A) at 264 MHz Board: RLG005a DRAM:  (60x:8COL)  4 MB FLASH: 16 MB In:    serial Out:   serial Err:   serial Net:   FCC2 ETHERNET Hit any key to stop autoboot:  0

=> bdinfo memstart    = 0x00000000 memsize     = 0x00400000 flashstart  = 0xFE000000 flashsize   = 0x01000000 flashoffset = 0x00026000 sramstart   = 0x00000000 sramsize    = 0x00000000 immr_base   = 0x02000000 bootflags   = 0x00000001 vco         =    396 MHz sccfreq     =     99 MHz brgfreq     =     99 MHz intfreq     =    264 MHz cpmfreq     =    198 MHz busfreq     =     33 MHz ethaddr     = 03:07:19:72:0A:0F IP addr     = 192.168.1.175 baudrate    =  38400 bps

=>  tftp 200000 uImage Using FCC2 ETHERNET device TFTP from server 192.168.1.10; our IP address is 192.168.1.175 Filename 'uImage'. Load address: 0x200000 Loading: send option "timeout 5" Got OACK: timeout 5 #################################################################          ########################################################### done Bytes transferred = 633138 (9a932 hex)

=> imi 200000 ## Checking Image at 00200000 ...    Image Name:   Linux-2.4.24-pre2    Image Type:   PowerPC Linux Kernel Image (gzip compressed)    Data Size:    633074 Bytes = 618.2 kB    Load Address: 00000000    Entry Point:  00000000    Verifying Checksum ... OK

=> bootm 200000 ## Booting image at 00200000 ...    Image Name:   Linux-2.4.24-pre2    Image Type:   PowerPC Linux Kernel Image (gzip compressed)    Data Size:    633074 Bytes = 618.2 kB    Load Address: 00000000    Entry Point:  00000000    Verifying Checksum ... OK    Uncompressing Kernel Image ... OK    Current stack ends at 0x003B4BA0 AF: => set upper limit to 0x003B43A0    cmdline at 0x003B42A0 ... 0x003B42F1    no initrd image    no initrd    Transferring control to Linux (at address 00000000) ...

... it hungs here ... but after reset ...

U-Boot 1.0.2 (Jul 27 2004 - 10:46:08)

MPC8260 Reset Status: External Soft, External Hard

MPC8260 Clock Configuration  - Bus-to-Core Mult 8x, VCO Div 2, 60x Bus Freq  12-38 , Core Freq 100-300  - dfbrg 0, corecnf 0x1c, busdf 11, cpmdf 1, plldf 0, pllmf 5  - vco_out  396000000, scc_clk   99000000, brg_clk   99000000  - cpu_clk  264000000, cpm_clk  198000000, bus_clk   33000000

CPU:   MPC8260 (HiP4 Rev 14, Mask B.1 4K25A) at 264 MHz Board: RLG005a DRAM:  (60x:8COL)  4 MB FLASH: 16 MB In:    serial Out:   serial Err:   serial Net:   FCC2 ETHERNET Hit any key to stop autoboot:  0

=> md 158c74 60 00158c74: 3c363e4d 656d6f72 79204241 54206d61    <6>Memory BAT ma 00158c84: 7070696e 673a2042 4154323d 344d622c    pping: BAT2=4Mb, 00158c94: 20424154 333d304d 622c2072 65736964     BAT3=0Mb, resid 00158ca4: 75616c3a 20304d62 0a3c343e 4c696e75    ual: 0Mb.<4>Linu 00158cb4: 78207665 7273696f 6e20322e 342e3234    x version 2.4.24 00158cc4: 2d707265 32202861 72747572 406c696e    -pre2 (artur@lin 00158cd4: 75782920 28676363 20766572 73696f6e    ux) (gcc version 00158ce4: 20332e32 2e322032 30303330 32313720     3.2.2 20030217 00158cf4: 2859656c 6c6f7720 446f6720 4c696e75    (Yellow Dog Linu 00158d04: 7820332e 3020332e 322e322d 32615f31    x 3.0 3.2.2-2a_1 00158d14: 29292023 39204d6f 6e204175 67203136    )) #9 Mon Aug 16 00158d24: 2031393a 30373a32 36204345 53542032     19:07:26 CEST 2 00158d34: 3030340a 3c343e4f 6e206e6f 64652030    004.<4>On node 0 00158d44: 20746f74 616c7061 6765733a 20313032     totalpages: 102 00158d54: 340a3c34 3e7a6f6e 65283029 3a203130    4.<4>zone(0): 10 00158d64: 32342070 61676573 2e0a3c34 3e626566    24 pages..<4>bef 00158d74: 6f726520 666f722c 2073697a 653d3130    ore for, size=10 00158d84: 32340a00 00000000 00000000 00000000    24.............. 00158d94: 00000000 00000000 00000000 00000000    ................ 00158da4: 00000000 00000000 00000000 00000000    ................ 00158db4: 00000000 00000000 00000000 00000000    ................ 00158dc4: 00000000 00000000 00000000 00000000    ................ 00158dd4: 00000000 00000000 00000000 00000000    ................ 00158de4: 00000000 00000000 00000000 00000000    ................ =>

Thanks in advance for any suggestions. Artur