From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <200008290758.JAA02594@denx.local.net> To: "Hyun-Joon Cha" cc: linuxppc-embedded@lists.linuxppc.org Subject: Re: Serial From: Wolfgang Denk Mime-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 In-reply-to: Your message of "Tue, 29 Aug 2000 11:28:36 +0900." <051301c01160$d5e0b560$1952df8d@SOYANG> Date: Tue, 29 Aug 2000 09:58:27 +0200 Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: In message <051301c01160$d5e0b560$1952df8d@SOYANG> you wrote: > > I'm using 8xxrom-0.3.0 for boot loader and MVista-2.2.13 for kernel. Forget 8xxrom. It's dead. Use the new PPCBoot instead. See http://ppcboot.sourceforge.net/ > I tried to remove serial driver for some reason. What are these reasons? Do you have another interface to interact with the board instead? > I have 4 questions abou it. The following answers are for PPCBoot code. > 0. If I remove it, will board boot correctly? Yes, it will. But you will still have a lot of dead code (interactive commands) which you might remove as well. > 1. Can I expect some performance gain with removal? What type of "performance" do you mean? Linux will not run any faster when you remove the serial driver from the boot loader. If you're talking about boot times, the difference is minimal - you can get nearly the same with PPCBoot configured with CONFIG_BOOTCOMMAND set to the command you need to boot and CONFIG_BOOTDELAY set to 0 so it will boot immediately. > 2. Are there any easy way to do it? Just remove the relevant code. But to be honest: I see a lot of disadvantages, and no real advantages. But you didn't tell us your reasons, so I cannot comment on this. Hope this helps. Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de A day without sunshine is like night. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/