2014-01-21 00:13 <nicksydney> seems like Germany is going to have a hard time with US trying to retrieve their 'assets'  http://www.zerohedge.com/news/2014-01-19/germany-has-recovered-paltry-5-tons-gold-ny-fed-after-one-year
2014-01-21 00:23 <wpwrak> i see a bit of a conflict looming there
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2014-01-21 00:34 <nicksydney> GFC v2.0 coming for sure..can feel it in my bone
2014-01-21 00:51 <nicksydney> another Samsung Exynos 4412 board http://www.cnx-software.com/2014/01/20/69-nanopc-by-friendlyarm-features-samsung-exynos-4412-soc/ ... but adding shipping not much cheaper
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2014-01-21 07:20 <nicksydney> wpwrak: going to pick up the KL chip tomorrow :) ... a kind soul willing to take my order to combine our order together to save shipping :)
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2014-01-21 13:08 <CYB3R_> Hi all!
2014-01-21 13:18 <CYB3R_> I found a description of boot process in ingenic-uboot. Here it is: https://gist.github.com/CYB3Rhuman/8539843
2014-01-21 13:18 <CYB3R_> But few things are still not clear for me.
2014-01-21 13:19 <CYB3R_> How many bootloaders are there? Is U-Boot the SPL or is it launched after SPL?
2014-01-21 13:19 <viric> after
2014-01-21 13:19 <viric> the spl loads the nub into ram from nand
2014-01-21 13:19 <CYB3R_> Okay, so there are 3 bootloaders: IPL -> SPL -> NUB
2014-01-21 13:21 <CYB3R_> IPL is implemented in hardware, NUB is compiled and stored in NAND. So where do I have the SPL?
2014-01-21 13:22 <viric> it says that the IPL loads the SPL from nand
2014-01-21 13:23 <CYB3R_> Yes, but if I have clear NAND, should I write an SPL to it?
2014-01-21 13:26 <viric> I understand that.
2014-01-21 13:27 <CYB3R_> Where do I get SPL from?
2014-01-21 13:28 <viric> I have no idea. I only read that text:)
2014-01-21 13:29 <CYB3R_> There is also `nandboot` utility from Ingenic. This may be that magic SPL or an alternative to U-Boot.
2014-01-21 13:37 <pcercuei> CYB3R_: there are 4 loaders
2014-01-21 13:37 <pcercuei> the IPL which is in hardware
2014-01-21 13:37 <pcercuei> the SPL which is 8kB max,
2014-01-21 13:37 <pcercuei> and finally u-boot
2014-01-21 13:37 <pcercuei> sorry, 3
2014-01-21 13:37 <pcercuei> the SPL is a part of u-boot
2014-01-21 13:38 <pcercuei> as u-boot is too big to fit in 8kB, it was cut in half
2014-01-21 13:38 <pcercuei> the first 8kB initialize the clocks and the RAM, then load the second part of u-boot from NAND
2014-01-21 13:44 <CYB3R_> pcercuei: Thank you! I found that U-Boot have both `u-boot-spl.bin` and `u-boot-nand.bin`
2014-01-21 13:45 <CYB3R_> So the IPL is part of JZ47XX chip and the other two loaders are two stages of U-Boot.
2014-01-21 13:45 <pcercuei> yes
2014-01-21 13:47 <CYB3R_> Seems like we don't need any NAND configuration, because it just simply nowhere to store it.
2014-01-21 13:47 <pcercuei> what are you trying to do?
2014-01-21 13:48 <CYB3R_> We only use BOOTSEL0 and BOOTSEL1 combination to show that we need to boot SPL from NAND
2014-01-21 13:48 <CYB3R_> I'm just studying the xburst
2014-01-21 13:49 <pcercuei> we have another bootloader for JZ47xx based chips, called ubiboot
2014-01-21 13:49 <pcercuei> https://github.com/gcwnow/UBIBoot
2014-01-21 13:50 <pcercuei> it can boot from an UBI volume on a NAND or from a FAT filesystem on a SD card
2014-01-21 13:50 <CYB3R_> Wow, thank you. I was googling around, but only found nandboot and modified U-Boot
2014-01-21 13:50 <pcercuei> and it's less than 8kB
2014-01-21 13:52 <CYB3R_> Does UBIBoot only initialize SRAM? Or maybe it is capable of writting an image to framebuffer?
2014-01-21 13:55 <pcercuei> it doesn't initialize the video hardware
2014-01-21 13:55 <pcercuei> that was a design decision
2014-01-21 13:59 <CYB3R_> So it's better because there should be less steps.
2014-01-21 14:00 <CYB3R_> IPL -> U-Boot SPL -> U-Boot NUB -> Linux
2014-01-21 14:00 <CYB3R_> vs
2014-01-21 14:00 <CYB3R_> IPL -> UBIBoot SPL -> Linux
2014-01-21 14:02 <viric> the ubiboot can load linux?
2014-01-21 14:04 <pcercuei> viric: yes
2014-01-21 14:04 <pcercuei> in raw format, not elf
2014-01-21 14:04 <viric> ok, ready for ram
2014-01-21 14:05 <CYB3R_> pcercuei: what is raw format? I only know elf binaries.
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2014-01-21 14:08 <CYB3R_> do you mean this bzImage?
2014-01-21 14:11 <pcercuei> vmlinux.bin, vmlinuz.bin, bzImage.bin
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2014-01-21 14:19 <CYB3R_> What tool do you use to put spl and kernel to nand? jzboot?
2014-01-21 14:22 <pcercuei> jzboot yes
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2014-01-21 15:53 <CYB3R_> pcercuei: I found three headers with different RAM configs for GCW0, where are Dingoo RAM config defined?
2014-01-21 15:54 <pcercuei> directly in board-a320.c, I think
2014-01-21 15:55 <CYB3R_> Thank you. I have different sdram, so I should modify this
2014-01-21 15:56 <viric> I thought you said that you were simply curious. Now you have a different sdram
2014-01-21 15:57 <viric> :)
2014-01-21 15:57 <CYB3R_> I'm curious, so I'm trying to set it up
2014-01-21 16:00 <CYB3R_> I already have one jz47xx board (xz0032) and I aslo will try to create something of my own design
2014-01-21 16:01 <pcercuei> what version of the JZ?
2014-01-21 16:02 <CYB3R_> jz4725b and jz4755
2014-01-21 16:02 <CYB3R_> all the others are bga so it's very tricky to solder it
2014-01-21 16:02 <pcercuei> ok
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2014-01-21 20:42 <rjeffries> Tom Cubie has his head screwed on right, me thinks. His new Rock chip based board is pretty nice, and reasonably open. But you tell me. http://radxa.com/download/
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2014-01-21 22:30 <CYB3R_> pcercuei: could you please tell which toolchain are you using to build UBIBoot?
2014-01-21 22:31 <pcercuei> this one http://www.treewalker.org/opendingux/opendingux-toolchain.2012-06-16.tar.bz2
2014-01-21 22:38 <CYB3R_> pcercuei: thank you, just downloaded it. I tried using Ingenic toolchain, but it lacks something and UBIBoot doesn't compile
2014-01-21 22:39 <CYB3R_> I don't like uClibc though, so I'll compile my own toolchain
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