can u send me output of printenv in boot loader..? Nethra
poorbeyond wrote: > > my cpu is 860T, using bootm command boot a linux kernel image, the > following message print by smc1: > > bootm 300000 > > ## Booting image at 00300000 ... > Image Name: Linux-2.6.20.14 > Image Type: PowerPC Linux Kernel Image (gzip compressed) > Data Size: 1081591 Bytes = 1 MB > Load Address: 00100000 > Entry Point: 00100000 > Verifying Checksum ... OK > Uncompressing Kernel Image ... OK > ## Current stack ends at 0x01D5DB10 => set upper limit to 0x00800000 > No initrd > ## Transferring control to Linux (at address 00100000) ... > > > > then, the program has no response. > > i debug it througth BDM, in u-boot function "do_bootm_linux", execute at > "kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))hdr->ih_ep", the > program branch to address "0x00000000", the code is shown as following: > 00000000 mr r31,r3 > 00000004 mr r30,r4 > 00000008 mr r29,r5 > 0000000C mr r28,r6 > 00000010 mr r27,r7 > 00000014 bl 0x000020C8 > 00000018 mfmsr r0 > 0000001C ori r0,r0,0x30 > 00000020 mtspr SRR1,r0 > 00000024 lis r0,[EMAIL PROTECTED] > 00000028 ori r0,r0,[EMAIL PROTECTED] > 0000002C mtspr SRR0,r0 > 00000030 rfi > > > my questions are: > > 1. Is the code "kernel = (void (*)(bd_t *, ulong, ulong, ulong, > ulong))hdr->ih_ep" branch right? > > 2. What's the expected code after "kernel = (void (*)(bd_t *, ulong, > ulong, ulong, ulong))hdr->ih_ep"? > > 3. When the kernel run to the "boot/simple/head.s"? > > > thanks a lot > > > > > > poorbeyond > 2007-07-22 > > _______________________________________________ > Linuxppc-embedded mailing list > [email protected] > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > -- View this message in context: http://www.nabble.com/ask-some-questions-about-u-boot%27s-bootm-command-tf4124319.html#a11761280 Sent from the linuxppc-embedded mailing list archive at Nabble.com. _______________________________________________ Linuxppc-embedded mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-embedded
