Khai Trinh wrote: > Hi folks, > > We are developing a PCI adapter card based out of the > PPC440GP using MVL version 2.1 (kernel 2.4.17). > > I have several issues as listed below: > > 1. I'd like to reserve a 4M RAM space for DMA > purposes. What I did was adding > CONFIG_CMD_LINE="root=60M" since our board has 64MB of
mem=60M should be the option. Read the help. > RAM. How do I know the system really now configure to > be only 60MB? How then can I get a virtual addr to the > 4MB DMA buffer? I did ioremap() given it the start of > the 60MB RAM physical addr, but I get a bus error with > the following message: check and use high_memory ........ > > Jan 1 00:01:42 199 kernel: __ioremap(): phys addr > 3c00000 is RAM lr c000a57c > > 2. We have a list of files (ie: hhlfiles) required to > build a RAM DISK that is non networked. What other > files involved that we need to build a RAM DISK that > has full network capability( ie: telnet, ftp, ping, > rlogin, mount, etc...)? > > 3. When the ethernet driver comes up it does a bootp > request to find its IP address.... How do we configure > it such that it picks it up from a file or flash? > > Thanks, > > --Khai > > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
