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| futarisWeb | shenki: The linux-milkymist git was Linux 3.11, and you rebased it onto 4.9, right? You mentioned something about the serial / IRQ drivers being broken. | 01:56 |
|---|---|---|
| futarisWeb | Looks like I need to make the UAPI changes too: https://lwn.net/Articles/507794/ | https://lwn.net/Articles/519762/ . | 01:58 |
| tpb | Title: The UAPI header file split [LWN.net] (at lwn.net) | 01:58 |
| shenki | we need to write new drivers for the litex peripherals | 01:59 |
| futarisWeb | Does the old linux-milkymist kernel boot in QEMU? | 01:59 |
| shenki | i don't know | 01:59 |
| shenki | i encourage you to try :) | 01:59 |
| futarisWeb | Ok. Chicken and egg. :) | 02:00 |
| shenki | hrm? | 02:00 |
| futarisWeb | I will try to get QEMU working with the old kernel first. QEMU should be already setup for the milkymist peripherals. | 02:00 |
| shenki | yep | 02:00 |
| futarisWeb | Then it's a matter of modifying QEMU & modifying the linux kernel for the new peripherals. | 02:01 |
| shenki | yep | 02:01 |
| shenki | uart, clocksource, and irq are the first three | 02:01 |
| futarisWeb | Anywhere I can easily see the differences between the milkymist and litex? | 02:01 |
| shenki | i suggest looking at the litex periperhals - the drivers we have for them in the bios/firmware - and writing kernel drivers based on them | 02:03 |
| shenki | what milkymist is doing is not important | 02:03 |
| shenki | from what i understood the periperhals have changed enough that the old drivers are not a useful starting point | 02:03 |
| shenki | especially considering the kenrel has changed a lot | 02:03 |
| futarisWeb | Yeah, understood. More just for the QEMU side. Although, you say the BIOS boots in your qemu fork... | 02:05 |
| shenki | it did | 02:13 |
| shenki | have you managed to reproduce that? | 02:13 |
| futarisWeb | Haven't built the BIOS. I guess I could just get the binary and try it later. | 02:14 |
| futarisWeb | PDF of Schematic for PCB: https://github.com/timvideos/HDMI2USB-numato-opsis-hardware/blob/master/doc/Numato-Opsis-v3-prod-3-g83e7bd5.pdf | 02:34 |
| tpb | Title: HDMI2USB-numato-opsis-hardware/Numato-Opsis-v3-prod-3-g83e7bd5.pdf at master · timvideos/HDMI2USB-numato-opsis-hardware · GitHub (at github.com) | 02:34 |
| futarisWeb | Python for BaseSoC: https://github.com/timvideos/HDMI2USB-litex-firmware/blob/master/targets/atlys/base.py | 02:35 |
| tpb | Title: HDMI2USB-litex-firmware/base.py at master · timvideos/HDMI2USB-litex-firmware · GitHub (at github.com) | 02:35 |
| futarisWeb | http://www.latticesemi.com/en/Products/DesignSoftwareAndIP/IntellectualProperty/IPCore/IPCores02/LatticeMico32.aspxLatticeMico32 | 02:46 |
| futarisWeb | http://www.latticesemi.com/en/Products/DesignSoftwareAndIP/IntellectualProperty/ReferenceDesigns/ReferenceDesign03/UARTWISHBONECompatible.aspx | 02:47 |
| tpb | Title: UART (Universal Asynchronous Receiver/Transmitter) - WISHBONE Compatible - Lattice Semiconductor (at www.latticesemi.com) | 02:47 |
| futarisWeb | http://www.latticesemi.com/en/Products/DesignSoftwareAndIP/IntellectualProperty/IPCore/IPCores02/LatticeMico32.aspx | 02:48 |
| tpb | Title: LatticeMico32 Processor - Lattice Semiconductor (at www.latticesemi.com) | 02:48 |
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| mithro | Damn missed him again | 03:55 |
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| futarisWeb | mithro: Thanks for clearing up that stuff about the uart. Still in the reading documentation stage at the moment. | 04:17 |
| futarisWeb | Other than the source code / python is there any other documentation about the misoc / litex peripherals? | 04:17 |
| mithro | futarisWeb: So the stuff that key2 did is emulating the LiteX/MiSoC peripherals | 04:18 |
| mithro | futarisWeb: Not really -- most peripherals are like *super* simple though | 04:18 |
| futarisWeb | Ok. | 04:18 |
| mithro | futarisWeb: Have you got a copy of the firmware locally? | 04:20 |
| futarisWeb | Don't suppose anyone has a link to the 2.6.23 uClinux kernel used at https://github.com/ubercomp/jslm32 ? | 04:20 |
| tpb | Title: GitHub - ubercomp/jslm32: Javascript emulator for the LatticeMico platform (at github.com) | 04:20 |
| mithro | futarisWeb: I contacted the maker of jslm32 | 04:20 |
| mithro | It was basically the stuff Lattice published | 04:21 |
| futarisWeb | Ok. | 04:22 |
| futarisWeb | I've got the Xilinx ISE, but haven't set that up. I did run the download scripts though. | 04:22 |
| mithro | futarisWeb: You should be able to build the firmware without needing the Xilinx tools | 04:24 |
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| mithro | futarisWeb: but you might have to fiddle the setup scripts to it skips checking for it | 04:24 |
| futarisWeb | Ok. | 04:25 |
| futarisWeb | There is no make target for just firmware? | 04:25 |
| mithro | futarisWeb: There is, but you have to enter the environment first | 04:26 |
| futarisWeb | (H2U B=opsis) $ | 04:26 |
| mithro | futarisWeb: There you should be able to type "make firmware" | 04:26 |
| mithro | futarisWeb: Then take a look at the files under build/opsis_video_lm32/software/ | 04:27 |
| futarisWeb | ValueError: Cannot extract CSR name from code, need to specify. | 04:29 |
| mithro | futarisWeb: What revision are you at? | 04:30 |
| futarisWeb | commit 21efb52f16aba31ebc602e5a5253a5f587c6abd6 | 04:31 |
| mithro | futarisWeb: Your on the very old branch | 04:34 |
| mithro | futarisWeb: I'd recommend removing your repo and cloning fresh | 04:34 |
| futarisWeb | Ok. Maybe I followed the older instructions... Can you link to the right getting-started? | 04:37 |
| mithro | futarisWeb: I merged the new repo earlier this morning | 04:38 |
| mithro | https://github.com/timvideos/HDMI2USB-litex-firmware/blob/master/getting-started.md | 04:39 |
| tpb | Title: HDMI2USB-litex-firmware/getting-started.md at master · timvideos/HDMI2USB-litex-firmware · GitHub (at github.com) | 04:39 |
| futarisWeb | Cheers. | 04:39 |
| futarisWeb | curl -fsS https://raw.githubusercontent.com/timvideos/HDMI2USB-litex-firmware/master/scripts/bootstrap.sh | bash | 04:40 |
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| mithro | shenki: Ping? | 08:46 |
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| CarlFK | tumbleweed: review!!!! soon please. I want to do more but not until I get this stuff stable | 18:00 |
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