[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Question about running Xen 4.4 on Arndale board
On 04/14/2014 06:07 PM, Suriyan Ramasami wrote: > Also, please note the typo for EARLY_PRINTK_BAUD. I guess Julien > missed a 0 at the end. Hrmmm, right. I didn't check my patch. > > For the exynos5410, this is what I did with some expert guidance from > Julien and Ian Campbell. I shall document it here, as it might help > you too. > > Changes in XEN (xen 4.4 stable) (first lets get XEN to boot and show > some output) > 1. change: xen/arch/arm/platforms/exynos5.c structure: > exynos5_dt_compat[], and add âsamsung,exynos5410â in that list > For you it might be "samsung,exynos5420" -> check your dtsi file. Do you plan to send a patch for adding odroid Xu support in Xen? > 2. Linux kernel exynos5410.dtsi (for you possibly exynos5420.dtsi)to > have the ARCH generic timer information. You might already have it. Do you plan to send this patch on Linux upstream? > timer { > compatible = "arm,cortexÂa15Âtimer","arm,armv7Âtimer"; I guess you meant arm,armv7-timer? > interrupts = <1 13 0xf08>, > <1 14 0xf08>, > <1 11 0xf08>, > <1 10 0xf08>; > clockÂfrequency = <24000000>; > }; > Above works for 5250 and 5410. > 3. Comment out all CPUs but the first cpu to start with (done in your > exynos5420.dtsi file) > 4. As Tod mentioned, you are missing the dtb file that you need to > pass as 3rd parameter to the bootm command. -> bootm $kernel_addr_t - > $dtb_addr_t > 5. The bootargs that you have set for xen, need to have the > console=dtuart dtuart=/serial@12C20000. > For you as Julien pointed out it might be @12C30000 > I am not sure if just settign bootargs will help. I wonder if it has > to be fdt set to /chosen etc. I have pasted a working env file which > you can modify and convert to scr to run it if need be. We should see some messages > For building XEN (make dist-xen), I am not sure if you have to add > debug=y as well for the CONFIG_EARLY_PRINTK=exynos5420 to be pulled in > - but, please do check on that. Aargh, I though Ian's patch to print an error when CONFIG_EARLY_PRINTK is used without debug=y was in Xen 4.4. From HyonYoung's previous mail, debug=y was not set. Regards, -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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