i want to mapping FIFO memory to bank 3 by configure br3 and or3 the boot info as following.
in my code, i have mapped FIFO to 0xD0000000, then i red the value from this address. the prompts as following there is some wrong with BRx and ORx set? or something others? please give me some suggestion, thanks everyone. ## Booting image at 00400000 ... Image Name: Linux-2.6.11 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 818473 Bytes = 799.3 kB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK OK Linux version 2.6.11 (r...@localhost.localdomain) (gcc version 4.0.0 (DENX ELDK 4.0 4.0.0)) #108 Mon May 4 22:54:23 EDT 2009 Motorola PQ2 ADS PowerPC port Built 1 zonelists Kernel command line: mem=32M console=ttyCPM0,9600 root=/dev/nfs/ rw nfsroot=192.168.0.131:/root/chengmo/fs_folder/rootfs ip=192.168.0.100:192.168.0.131:#:255.0.0.0:::off PID hash table entries: 256 (order: 8, 4096 bytes) Warning: real time clock seems stuck! Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) Memory: 30632k available (1420k kernel code, 272k data, 88k init, 0k highmem) Mount-cache hash table entries: 512 (order: 0, 4096 bytes) scheduling while atomic: swapper/0x00000002/0 Call trace: [c015fe20] [c0003fe0] [c01a09b4] [c0194614] [000035fc] NET: Registered protocol family 16 Sauce : fifo mapping to bank3 ! // here, indicate has enter fifo_init function, but after this... Oops: kernel access of bad area, sig: 11 [#1] PREEMPT NIP: C01A2108 LR: C01A2104 SP: C0227FC0 REGS: c0227f10 TRAP: 0300 Not tainted MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 DAR: D0000000, DSISR: 20000000 TASK = c0220ab0[1] 'swapper' THREAD: c0226000 Last syscall: 120 GPR00: C01A2104 C0227FC0 C0220AB0 00000025 00000467 FFFFFFFF F00000A0 00000022 GPR08: 001FF1A0 D0000000 F00000A8 C0227ED0 00000001 7FBDFFFF 02000000 00000000 GPR16: 00800000 01FFF9E8 FFFFFFFF 00000000 007FFF00 01FFA4DC 01BD92B8 00000001 GPR24: 00000000 00400000 C01B0000 C0160000 C01A0000 00000001 C0226000 C01A86A8 Call trace: [c0003a40] [c0006504] Kernel panic - not syncing: Attempted to kill init! here, i have other questions about these information. what dose mean by "NIP : C01A2108" ? i supposed "C01A2108" may be a address of user space, what about NIP ? and what the expression "DAR, DSISR, TASK, and GPR00-24" represent. i hope some will let me know those or recommand some book for me. thanks -- View this message in context: http://www.nabble.com/PPC8247-booting-error-tp23381214p23381214.html Sent from the linuxppc-dev mailing list archive at Nabble.com. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev