On 21:08 Thu 04 Jun , wuzhangjin@xxxxxxxxx wrote: > From: Wu Zhangjin <wuzj@xxxxxxxxxx> > > the difference between yeeloong-7inch and yeeloong-8.9inch is very > small, only including the screen size and shutdown logic. so, it's very > important to share the same kernel image file between them instead of > adding some new kernel config options. benefit from this, the > distribution developers only have a need to compile the kernel one time. > > to share the same kernel image file between yeelooong-7inch and > yeeloong-8.9inch, there is a need to add a kernel command line, here I > name is machtype, it works like this: > > machtype=lemote-yeeloong-2f-7inch > company - product - cpu revision - size > > so, we can choose a suitable vga mode for the screen of different size > by default via this kernel command line in prom_init, here exactly is > mach_prom_init_cmdline in arch/mips/loongson/yeeloong-2f/init.c. > > the vga command line will be used later in the SMI video driver to > choose a suitable screen resolution ratio. > > and also, we can get the true machine name via this kenrel command line > argument. I have tested this patchset on both fuloong 2f and 2e boxes. It works well except for that duplicated #include's problem. However, there is an annoying problem. The system type on these two boxes has an "-unknowninch" ending, which does not make any sense at all. So I made a patch on top of your patchset which makes kernel param machtype=lemote-yeeloong-2f-7inch work as before, while on fuloongs return system types like "lemote-fuloong-2e-box" and is less intrusive againt linux-mips tree. I will post this patch after I test the patchset on yeeloong 8.9 notebook. -- Zhang, Le Gentoo/Loongson Developer http://zhangle.is-a-geek.org 0260 C902 B8F8 6506 6586 2B90 BC51 C808 1E4E 2973
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