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| cr1901_modern | rohitksingh_work: Pong. I think I know why you pinged me. Openocd, right? | 07:04 |
|---|---|---|
| cr1901_modern | I don't have this board; but it looks fine to me | 07:05 |
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| rohitksingh_work | cr1901_modern: Yup! For the openocd patch review. If it looks like, can you please upvote the patch | 08:22 |
| rohitksingh_work | *looks fine | 08:22 |
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| cr1901_modern | rohitksingh_work: Looks like yours was just merged? | 09:36 |
| cr1901_modern | rohitksingh_work: Do you mind upvoting my patches if they look good? | 09:37 |
| cr1901_modern | http://openocd.zylin.com/#/c/4525/ | 09:37 |
| tpb | Title: Gerrit Code Review (at openocd.zylin.com) | 09:37 |
| cr1901_modern | http://openocd.zylin.com/#/c/4428/ | 09:37 |
| tpb | Title: Gerrit Code Review (at openocd.zylin.com) | 09:37 |
| rohitksingh_work | cr1901_modern: err? Wow , that was quiet fast! I just checked saw it has been merged. Thanks! | 09:40 |
| rohitksingh_work | cr1901_modern: sure, I'll review your patches :) | 09:40 |
| cr1901_modern | thanks | 09:40 |
| rohitksingh_work | s/quiet/quite | 09:40 |
| cr1901_modern | Do I need to request a review from you (I don't think I can lol) | 09:50 |
| rohitksingh_work | cr1901_modern: no need. I reviewed and upvoted your changes. They are pretty small and should be easy to merge. Specially spartan 7 support should be added asap. | 10:07 |
| rohitksingh_work | cr1901_modern: you should add Paul Fertser also as the reviewer | 10:23 |
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| rohitksingh_work | _florent_: Is the liteeth rgmii phy supposed to work fine if the speed is negotiated down to 100M? | 11:10 |
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| _florent_ | rohitksingh_work: liteeth rgmii phy only works a 1gbps iirc. | 13:32 |
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| CarlFK | shorne: https://github.com/timvideos/litex-buildenv/wiki/HowTo-LCA2018-FPGA-Miniconf#net-booting-hdmi2usb-bare-metal-firmware-in-qemu why does the "uptime" always show 42 seconds? | 14:04 |
| tpb | Title: HowTo LCA2018 FPGA Miniconf · timvideos/litex-buildenv Wiki · GitHub (at github.com) | 14:04 |
| rohitksingh | _florent_: oh, thanks! I was wondering why it wasn't working with 100M switch | 14:08 |
| CarlFK | shorne: the next step (boot linux or1k on qemu) uptime shows time ticking at 1/5 real time, like it takes 10 seconds for uptime to show 2 seconds | 14:30 |
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| CarlFK | both hdmi2usb and linux works ok on ARty | 17:47 |
| CarlFK | good news: all that lca stuff still works :p | 17:47 |
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| shorne | CarlFK: hmm, thats H2U firmware I am not sure. I can check | 21:20 |
| shorne | But timing being off would be due to differences between hardware/simulator and software | 21:20 |
| shorne | For linux, we set the hardware frequencey in device tree (https://github.com/timvideos/linux-litex/blob/master-litex/arch/openrisc/boot/dts/or1klitex.dts#L32) | 21:21 |
| tpb | Title: linux-litex/or1klitex.dts at master-litex · timvideos/linux-litex · GitHub (at github.com) | 21:21 |
| shorne | For hardware, its set up PLL's something like (https://github.com/timvideos/litex-buildenv/blob/master/targets/arty/base.py#L42) | 21:24 |
| tpb | Title: litex-buildenv/base.py at master · timvideos/litex-buildenv · GitHub (at github.com) | 21:24 |
| shorne | For sim, we set it up here, https://github.com/timvideos/qemu-litex/blob/master/hw/openrisc/cputimer.c#L26 | 21:26 |
| tpb | Title: qemu-litex/cputimer.c at master · timvideos/qemu-litex · GitHub (at github.com) | 21:26 |
| shorne | CarlFK: so right now Arty is 100Mhz, and Qemu is 20Mhz | 21:27 |
| shorne | Linux is 100Mhz | 21:27 |
| shorne | time running on qemu will be off | 21:27 |
| CarlFK | shorne: ok, just wanted to make sure it was expected and not "what?! that needs to be fixed." | 21:31 |
| shorne | CarlFK: ok, FYI for firmware the value SYSTEM_CLOCK_FREQUENCY is pulled from generated csr.h (which comes from the hardware description) | 21:32 |
| shorne | i.e. | 21:32 |
| shorne | https://github.com/timvideos/litex-buildenv/blob/master/firmware/uptime.c#L16 | 21:32 |
| tpb | Title: litex-buildenv/uptime.c at master · timvideos/litex-buildenv · GitHub (at github.com) | 21:32 |
| shorne | for Harware/firmware will always be in sync | 21:32 |
| shorne | just sim is the odd one out, Also for Linux we should probably change the hardcoded frequency to the value from generated/csr.h | 21:33 |
| CarlFK | it will keep people like me from asking about it :p | 21:33 |
| shorne | CarlFK: if anyone wants to do a quick linux patch it should be easy | 21:34 |
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