Hi Is anyone able to offer helpful tips or new directions with this: I am wanting to use a usb device with ID 0bda:2838 Realtek Semiconductor Corp. RTL2838 DVB-T on a MK802II mini pc using the Allwinner A10 cpu. This device requires modules rtl2830.ko, rtl2832.ko and dvb_usb_rtl28xxu. The second of these modules does not seem to exist without patches on kernel 3.4 but on a raspberry pi I have been successful using kernel 3.10.25+. Here is the relevant lsmod from the pi: r820t 16279 1 rtl2832 8020 1 dvb_usb_rtl28xxu 14333 1 dvb_usb_v2 14860 1 dvb_usb_rtl28xxu rc_core 16313 3 dvb_usb_rtl28xxu,dvb_usb_v2 rtl2830 7378 1 dvb_usb_rtl28xxu dvb_core 92797 3 rtl2830,rtl2832,dvb_usb_v2 However when I try to compile a kernel for the A10 with 3.10.25+ I have no success. If I use the raspi sources for the cross-compile: https://github.com/raspberrypi/linux/archive/rpi-3.10.y.tar.gz I get errors that seem unresolvable: e.g.: undefined reference to `v6wbi_flush_kern_tlb_range' If I use the sunxi kernel source: https://github.com/linux-sunxi/linux-sunxi/tree/reference-3.10 the compile completes without error and I get modules and a uImage file but the device won't boot I am using this as a guide: http://jas-hacks.blogspot.com.au/2012/10/hackberry-a10-compiling-kernel-armh... I have tried using various .config files as a starting point including the pi and from the earlier 3.4 kernel without success Does anyone have any experience in this area? Any help would be much appreciated. Thanks Rob
Do I need to use u-boot to start uImage or can I just put a copy of it in the boot partition? Maybe that is where the failure to boot arises. Thanks -------- Original Message -------- Subject: Cross-Compiling for Armv7 Date: Thu, 20 Mar 2014 21:46:03 +1100 From: Robert Brown <rebrown@exemail.com.au> To: luv-beginners@luv.asn.au Hi Is anyone able to offer helpful tips or new directions with this: I am wanting to use a usb device with ID 0bda:2838 Realtek Semiconductor Corp. RTL2838 DVB-T on a MK802II mini pc using the Allwinner A10 cpu. This device requires modules rtl2830.ko, rtl2832.ko and dvb_usb_rtl28xxu. The second of these modules does not seem to exist without patches on kernel 3.4 but on a raspberry pi I have been successful using kernel 3.10.25+. Here is the relevant lsmod from the pi: r820t 16279 1 rtl2832 8020 1 dvb_usb_rtl28xxu 14333 1 dvb_usb_v2 14860 1 dvb_usb_rtl28xxu rc_core 16313 3 dvb_usb_rtl28xxu,dvb_usb_v2 rtl2830 7378 1 dvb_usb_rtl28xxu dvb_core 92797 3 rtl2830,rtl2832,dvb_usb_v2 However when I try to compile a kernel for the A10 with 3.10.25+ I have no success. If I use the raspi sources for the cross-compile: https://github.com/raspberrypi/linux/archive/rpi-3.10.y.tar.gz I get errors that seem unresolvable: e.g.: undefined reference to `v6wbi_flush_kern_tlb_range' If I use the sunxi kernel source: https://github.com/linux-sunxi/linux-sunxi/tree/reference-3.10 the compile completes without error and I get modules and a uImage file but the device won't boot I am using this as a guide: http://jas-hacks.blogspot.com.au/2012/10/hackberry-a10-compiling-kernel-armh... I have tried using various .config files as a starting point including the pi and from the earlier 3.4 kernel without success Does anyone have any experience in this area? Any help would be much appreciated. Thanks Rob
Following some research on the later kernels and the role of u-boot and dtsb I have used the following - but again without a successful boot: make -j5 ARCH=arm CROSS_COMPILE=/usr/bin/arm-linux-gnueabihf- menuconfig make -j5 ARCH=arm CROSS_COMPILE=/usr/bin/arm-linux-gnueabihf- LOADADDR=0x40008000 uImage dtbs make ARCH=arm CROSS_COMPILE=/usr/bin/arm-linux-gnueabihf- -j5 INSTALL_MOD_PATH=output modules make ARCH=arm CROSS_COMPILE=/usr/bin/arm-linux-gnueabihf- -j5 INSTALL_MOD_PATH=output modules_install put a copy of the created uImage and arch/arm/boot/sun4i-a10-a1000.dtb into the boot partition of the sdcard copy the created modules to the /lib/modules on the rootfs partition In case the existing boot.scr has some inconsistency I save this to boot.cmd: setenv bootargs console=ttyS0,115200 root=/dev/sda1 rootwait ro earlyprintk debug ext2load mmc 0 0x46000000 uImage ext2load mmc 0 0x49000000 sun4i-a10-a1000.dtb env set fdt_high ffffffff bootm 0x46000000 - 0x49000000 and run: mkimage -C none -A arm -T script -d boot.cmd boot.scr copy this boot.scr to the boot partition of the sdcard When it fails to boot there's not much chance of troubleshooting as I have not been able to get to the uboot prompt. Anyone got any thoughts? Thanks Rob -------- Original Message -------- Subject: Fwd: Cross-Compiling for Armv7 Date: Sat, 22 Mar 2014 11:02:26 +1100 From: Robert Brown <rebrown@exemail.com.au> To: luv-beginners@luv.asn.au Do I need to use u-boot to start uImage or can I just put a copy of it in the boot partition? Maybe that is where the failure to boot arises. Thanks -------- Original Message -------- Subject: Cross-Compiling for Armv7 Date: Thu, 20 Mar 2014 21:46:03 +1100 From: Robert Brown <rebrown@exemail.com.au> To: luv-beginners@luv.asn.au Hi Is anyone able to offer helpful tips or new directions with this: I am wanting to use a usb device with ID 0bda:2838 Realtek Semiconductor Corp. RTL2838 DVB-T on a MK802II mini pc using the Allwinner A10 cpu. This device requires modules rtl2830.ko, rtl2832.ko and dvb_usb_rtl28xxu. The second of these modules does not seem to exist without patches on kernel 3.4 but on a raspberry pi I have been successful using kernel 3.10.25+. Here is the relevant lsmod from the pi: r820t 16279 1 rtl2832 8020 1 dvb_usb_rtl28xxu 14333 1 dvb_usb_v2 14860 1 dvb_usb_rtl28xxu rc_core 16313 3 dvb_usb_rtl28xxu,dvb_usb_v2 rtl2830 7378 1 dvb_usb_rtl28xxu dvb_core 92797 3 rtl2830,rtl2832,dvb_usb_v2 However when I try to compile a kernel for the A10 with 3.10.25+ I have no success. If I use the raspi sources for the cross-compile: https://github.com/raspberrypi/linux/archive/rpi-3.10.y.tar.gz I get errors that seem unresolvable: e.g.: undefined reference to `v6wbi_flush_kern_tlb_range' If I use the sunxi kernel source: https://github.com/linux-sunxi/linux-sunxi/tree/reference-3.10 the compile completes without error and I get modules and a uImage file but the device won't boot I am using this as a guide: http://jas-hacks.blogspot.com.au/2012/10/hackberry-a10-compiling-kernel-armh... I have tried using various .config files as a starting point including the pi and from the earlier 3.4 kernel without success Does anyone have any experience in this area? Any help would be much appreciated. Thanks Rob
On Wed, Apr 9, 2014, at 22:15, Robert Brown wrote:
Following some research on the later kernels and the role of u-boot and dtsb I have used the following - but again without a successful boot:
Hi Rob, I don't often have time to read luv-beginners, but just happened to tonight, and saw your series of posts that had got no response. I think this is a topic beyond beginners' level, so it might make sense to post instead on luv-main, where there's a lot more traffic, and where this sort of question wouldn't be out of place. I've got one of those "Google TV" MK802IIs (or something similar), and a Raspberry Pi, so I have some interest -- but I haven't had the time to delve as deeply as you have. I've had in mind to try booting Linux on the MK802, but haven't got further than to read a few webpages. -- Smiles, Les.
participants (2)
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Les Kitchen (LUV) -
Robert Brown