From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from web52903.mail.re2.yahoo.com (web52903.mail.re2.yahoo.com [206.190.49.13]) by ozlabs.org (Postfix) with SMTP id 2B4221007D2 for ; Wed, 2 Dec 2009 09:38:28 +1100 (EST) Message-ID: <401793.31718.qm@web52903.mail.re2.yahoo.com> Date: Tue, 1 Dec 2009 14:38:27 -0800 (PST) From: Allan Wang Subject: EP440XS board boot problem(Note:similart to Sequoia) To: linuxppc-dev@lists.ozlabs.org MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-2055523732-1259707107=:31718" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --0-2055523732-1259707107=:31718 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable I resend my message since my last message has wrong coding.=0A=0A=0AI am ne= w to the list. I am still newbie to embedded linux. I have bought an ep440x= s board which is similar to sequoia board. u-boot is working. I am trying t= o make it run linux.=C2=A0 I have the following problems and need your help= . Thank you very much:=0A=0A=0AI am using linux kernel 2.6.30.4. I encounte= r 2 problems:=0A1. After console_init() is called inside start_kernel(), th= e console starts printing garbage like:=0ASerial: 8250/16550 driver, 4 port= s, IRQ sharing enabled=0Aserial8250.0: ttyS0 at MMIO 0x1ef600300 (irq =3D 1= 6) is a 16550A=0A=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF= =BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD= =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=0A=EF=BF=BD= =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF= =BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD= =EF=BF=BD=EF=BF=BD=0A=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD= =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF= =BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD= =EF=BF=BD=EF=BF=BD=0A=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD= =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF= =BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=0A=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD= =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD.= =0A2. It pakics when mounting the root file system(NFS):=0A(gdb) bt=0A#0=C2= =A0 panic (fmt=3D0xc0290e94 "VFS: Unable to mount root fs on %s")=0Aat kern= el/panic.c:70=0A#1=C2=A0 0xc02d8ce0 in mount_block_root (name=3D0xc0290de4 = "/dev/root", flags=3D0x8001)=0Aat init/do_mounts.c:272=0A#2=C2=A0 0xc02d908= 4 in prepare_namespace () at init/do_mounts.c:415=0A#3=C2=A0 0xc02d81ec in = kernel_init (unused=3D) at init/main.c:885=0A#4=C2=A0 = 0xc000de60 in kernel_thread ()=0AThere is a patch for Sequoia board to dele= te /chosen part in sequoia.dts, is /chosen required?=0A=0AAllan=0A=0A=0A=0A= --0-2055523732-1259707107=:31718 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
I resend my message since my last message has wrong co= ding.
=0A
 
=0A
 
=0A
I am new to the = list. I am still newbie to embedded linux. I have bought an ep440xs board w= hich is similar to sequoia board. u-boot is working. I am trying to make it= run linux.  I have the following problems and need your help. Thank y= ou very much:


I am using linux kernel 2.6.30.4. I encounter 2 problems:
1. After console_init() is c= alled inside start_kernel(), the console starts printing garbage like:
S= erial: 8250/16550 driver, 4 ports, IRQ sharing enabled
serial8250.0: tty= S0 at MMIO 0x1ef600300 (irq =3D 16) is a 16550A
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD= =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF= =BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD
=EF=BF=BD=EF= =BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD= =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF= =BF=BD=EF=BF=BD
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD= =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF= =BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD= =EF=BF=BD=EF=BF=BD
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD= =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF= =BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD
= =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF= =BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD.
2. It pakics when mounting the root file system(NFS):
(gdb) bt#0  panic (fmt=3D0xc0290e94 "VFS: Unable to mount root fs on %s")at kernel/panic.c:70
#1  0xc02d8ce0 in mount_block_root (name=3D0x= c0290de4 "/dev/root", flags=3D0x8001)
at init/do_mounts.c:272
#2 = ; 0xc02d9084 in prepare_namespace () at init/do_mounts.c:415
#3  0x= c02d81ec in kernel_init (unused=3D<value optimized out>) at init/main= .c:885
#4  0xc000de60 in kernel_thread ()
There is a patch for S= equoia board to delete /chosen part in sequoia.dts, is /chosen required?

Allan

=0A=0A --0-2055523732-1259707107=:31718--