Dear sir,

We are interfacing MPC8xx processor with IDE/HDD by using Memory controller.In U-boot we configured CONFIG_IDE_8xx_DIRECT(PIO 4). The Logic implemented is interfaced with the User Programmable Machine B (UPMB) of MPC’s memory Controller unit.

MPC860/866 at 80MHz/100/130Mhz. We are able to detect the HDD at the U-boot prompt(IDE status = OK and status register value is 0x50). But when we run it from kernel with rfs mounted on HDD it shows the following error.

I've captured the log of IDE with debug enabled. Please do have a look at it & Kindly let me know where we went wrong.

U-Boot 1.1.3 (May 29 2006 - 15:37:12)

CPU: unknown MPC86x (0x08010004) at 80 MHzz@16 kB I-Cache 8 kB D-Cache FEC present *** Warning: CPU Core has Silicon Bugs -- Check the Errata *** clock 80000000Hz != 617900000Hz Board: Integrated Communications Manager - Beta with MPC860P UPMB Enabled for IDE I2C: ready DRAM: (32 MB SDRAM) 32 MB Top of RAM usable for U-Boot at: 02000000 Reserving 374k for U-Boot at: 01fa2000 Reserving 400k for malloc() at: 01f3e000 Reserving 60 Bytes for Board Info at: 01f3dfc4 Reserving 48 Bytes for Global Data at: 01f3df94 Stack Pointer at: 01f3df78 New Stack Pointer is: 01f3df78 Now running in RAM - U-Boot at: 01fa2000 FLASHz flash_protect ON: from 0xFF800000 to 0xFF828FFF protect on 0 protect on 1 protect on 2 protect on 3 flash_protect ON: from 0xFF840000 to 0xFF843FFF protect on 4 AMD-LV160-B : 8 MB In: serial Out: serial Err: serial U-Boot relocated to 01fa2000Net: @@FEC ETHERN…¤ IDE: Bus 0: ide_outb (dev= 0, port= 0x1c, val= 0xe0) : @ 0xfeff001c ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0x80 ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0x80 ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0x90 ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0x90 ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0x50 OK Device 0z ide_outb (dev= 0, port= 0x1c, val= 0xe0) : @ 0xfeff001c ide_outb (dev= 0, port= 0x1e, val= 0xec) : @ 0xfeff001e ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0xd0 ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0xd0 ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0xd0 ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0xd0 ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0xd0 ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0xd0 ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0xd0 ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0x58 in input swap data base for read is feff0010 Model: ST340015A Firm: 3.01 Ser#: 5LAC48ZY Type: Hard Disk Capacity: 38166.6 MB = 37.2 GB (78165360 x 512) ide_read dev 0 start 0, blocks 1 buffer at 1F3DCF8 ide_outb (dev= 0, port= 0x1c, val= 0xe0) : @ 0xfeff001ã ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0x50 ide_outb (dev= 0, port= 0x1e, val= 0xe5) : @ 0xfeff001e ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0x50 ide_inb (dev= 0, port= 0x14) : @ 0xfeff0014 -> 0xff Powersaving FF ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0x50 ide_outb (dev= 0, port= 0x14, val= 0x01) : @ 0xfeff0014 ide_outb (dev= 0, port= 0x16, val= 0x00) : @ 0xfeff0016 ide_outb (dev= 0, port= 0x18, val= 0x00) : @ 0xfeff0018 ide_outb (dev= 0, port= 0x1a, val= 0x00) : @ 0xfeff001a ide_outb (dev= 0, port= 0x1c, val= 0xe0) : @ 0xfeff001c ide_outb (dev= 0, port= 0x1e, val= 0x20) : @ 0xfeff001e ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0xd0 ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0xd0 ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0x58 in input data base for read is feff0010 ide_inb (dev= 0, port= 0x1e) : @ 0xfeff001e -> 0ø50 LCD: 4 Line Display ### main_loop entered: bootdelay=1  ### main_loop: bootcmd="bootm 0xff900000" Hit ány key to stop autoboot: 1  0 ## Âooting image at ff900000 ... Image Name: Lin Kernel Created: 2006-05-29 5:20:27 UTC Image Type: PowerPC Linux Kernel Imáge (gzip compråsseä) Äata Size: 640339 Bytes = 625.3 kB Load Adäress: 00000000 Entry Ðoint: 00000000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK## Current stack ends at 0x01F3DBD8 => set upper limit to 0x00800000## cmdline at 0x007FFF00 ... 0x007FFF10 bd address = 0x01F3DFC4 memstart = 0x00000000 memsize = 0x02000000 flashstart = 0xFF800000 flashsize = 0x00800000 flashoffset = 0x00029000 sramstart = 0x00000000 sramsize = 0x00000000 immr_base = 0xFF000000 bootflags = 0x00000001 intfreq = 80 MHz busfreq = 40 MHz ethaddr = 00:A2:63:4C:5D:15 IP addr = 192.168.1.1 baudrate = 38400 bpsNo initrd ## Transferring control to Linux (at address 00000000) ... Linux version 2.4.18_mvl30-fads ((gcc version 3.2.1 20020930 (MontaVista)) #302 Mon May 29 10:38:58 IST 2006 On node 0 totalpages: 8192 zone(0): 8192 pages. zone(1): 0 pages. zone(2): 0 pages. Kernel command line: root=/dev/hda rw rtsched version <20011203.1609.50> Decrementer Frequency = 300000000/60 Calibrating delay loop... 79.87 BogoMIPS Memory: 30728k available (1100k kernel code, 344k data, 56k init, 0k highmem) Dentry-cache hash table entries: 4096 (order: 3, 32768 byteói Inode-cache hash table entries: 2048 (order: 2, 16384 bytes) Mount-cache hash table entries: 512 (order: 0, 4096 byteói Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes) Page-cache hash table entries: 8192 (order: 3, 32768 bytes) POSIX conformance testing by UNIFIØ Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Initializing RT netlink socket Starting kswapä Disabling the Out Of Memory Killer JFFS version 1.0, (C) 1999, 2000 Axis Communications A LCD device HITACHI 0066 V1.0 initialized on GPIÏ CPM UART driver version 0.03 ttyS0 on SMC1 at 0x0280, BRG1 pty: 256 Unix98 ptys configõråd block: 64 slots per queue, batãh=16 RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blockóize Uniform Multi-Platform E-IDE driver Revision: 6.31 ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx IDE phys mem : feff0000...feff0200 (size 0000020`Yhda: probing with STATUS(0x50) instead of ALTSTATUS(0xueYhda: ST340015A, ATA DISK drÉæÅhdb: probing with STATUS(0x00) instead of ALTSTATUS(0xÁeYhdb: probing with STATUS(0x00) instead of ALTSTATUS(0xÁeYide0 at 0xc3000010-0xc3000017,0xc3000020 on irq 12 hda: 78165360 sectors (40021 MB) w/2048KiB Cache, CHS=77545/16/63 Partition check: `èda: eth0: FEC ENET Version 0.2, FEC irq 3, MII irq 8, addr 00:a2:63:4c:5d:15 eth0: Phy @ 0x0, type LXT971 (0x001378Å2) loop: loaded (max 8 devices) init_icm_mtd: chip probing coõnt 0 Amd/Fujitsu Extended Query Table v1.0 at 0x0040 number of CFI chips: 1 init_icm_mtd: bank1, name:ICM0, size:8388608bytes ICM flash0: Using Static image partition definiôion Creating 3 MTD partitions on "ICÍ0": 0x00200000-0x00400000 : "icm-configs" 0x00400000-0x00440000 : "icm-pbx-grp-confégs" 0x00440000-0x004c0000 : "icm-pbx-ext-confiçs" NET4: Linux TCP/IP 1.0 for NEÔ4.0 IP Protocols: ICMP, UDP, TCP, ‰GMÐ IP: routing cache hash table of 512 buckets, 4Kbùtåó TCP: Hash tables configured (established 2048 bind 409vi eth0: config: auto-negotiation on, 100FDX, 100HDX, 10FDX, 10HDX. IP-Config: Incomplete network configuration information. NET4: Unix domain sockets 1.0/SMP for Linux NET4.p. EXT2-fs warning: mounting unchecked fs, running e2fsck is recommeîded VFS: Mounted root (ext2 filesyståm). Freeing unused kernel memory: 56k énit Kernel panic: No init found. Try passing init= option to kernel. <0>Rebooting in 180 secoÎds.N

I am not a member of U-boot users,kindly put a cc to mail id prabhu@signal-networks.com

Thanks and Regards, V.Prabhu Swamy Email :prabhu@signal-networks.com