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 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: 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/
