From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <001101c3894c$38833ab0$2803050a@JackyLam> From: "Jacky Lam" To: "Wolfgang Denk" Cc: References: <20031002121733.A2E32C59E4@atlas.denx.de> Subject: Re: Queston about Walnut Date: Fri, 3 Oct 2003 09:18:12 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: > > > Who gave you such (obviously wrong) instructions? > > > > I take the example of u-boot to create the "uImage" and download it > > to the board. > > Please show me which U-Boot document uses 0x00400000 as load or entry > point address so I can fix this immediately. It is WRONG and CANNOT > work. I take the "step" from u-boot's README file only. Because I got an exception, I try to load it to other address. I use 0x00400000 because zImage seems to be loaded at there....anyway, just a guess. > > Please start by giving a precise description of what you did. and > which error messages you got. Here is the exact step that I have done so far: powerpc-405-linux-gnu-objcopy -O binary -R .note -R .comment -S vmlinux linux.bin gzip -9 linux.bin ./mkimage -A ppc -O linux -T kernel -C gzip -a 0x00000000 -e 0x00000000 -n "test" -d linux.bin.gz uImage Here is the u-boot log: U-Boot 0.4.0 (Sep 29 2003 - 11:44:31) CPU: IBM PowerPC 405GP Rev. D at 200 MHz (PLB=100, OPB=50, EBC=33 MHz) PCI sync clock at 33 MHz, external PCI arbiter enabled 16 kB I-Cache 8 kB D-Cache Board: ### No HW ID - assuming WALNUT405 I2C: ready DRAM: 64 MB FLASH: 512 kB In: serial Out: serial Err: serial KGDB: kgdb ready ready BEDBUG:ready Hit any key to stop autoboot: 0 => tftpboot ENET Speed is 100 Mbps - FULL duplex connection TFTP from server 10.5.6.76; our IP address is 10.5.3.45 Filename 'uImage'. Load address: 0x400000 Loading: ################################################################# ####################################################### done Bytes transferred = 612748 (9598c hex) => bootm ## Booting image at 00400000 ... Image Name: test Created: 2003-10-03 1:08:06 UTC Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 612684 Bytes = 598.3 kB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK id mach(): done MMU:enter MMU:hw init MMU:mapin > > You "get an exception" - when? When running "mkimage"? When booting > the kernel? Which sort of exception? What is the exact error message? > Please include a complete log of your actions and all output. Maybe I do something wrong before. Now, it just hangs. Thanks your suggestion about the load address. Best Regards, Jacky ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/