| --- Log opened Thu Jul 16 00:00:18 2015 | ||
| olofk | Is this still valid? http://opencores.org/or1k/OpenRISC_PIC | 11:02 |
|---|---|---|
| ErikZ | Hi guys. I'm running orpsoc and am booting linux. I have sucessfully mounted a sdcard using simple spi and the mmc_spi linux driver. The problem now is that sd accesses are incredibly slow. Creating a directory on the mounted sd card takes more than a minute. Is this level of performance expected or is something awry? | 13:26 |
| ErikZ | Does the opencores sdcard_mass_storage_controller project have a working linux driver? | 13:43 |
| ErikZ_ | heh, writing hello in a text file took about 4 minutes | 14:15 |
| ErikZ_ | Any ideas on how to debug this? | 14:49 |
| poke53281 | you should type faster :) | 14:50 |
| poke53281 | what about strace? | 14:51 |
| andrzejr | any reason why atlys is using a custom jtag_tap rather than the one built in the fpga? I imagine this board already has a jtag i/f for programming the fpga. | 22:14 |
| olofk | ErikZ_: Hi. I've been looking at better SDcard support recently. Haven't looked at the performance yet, but from what I have heard a real SD core would be much better than using SPI mode | 22:50 |
| olofk | I think LoneTech did some work on the SD controller on opencores, and I'm also a bit interested in the one Google uses for ProjectVault | 22:52 |
| olofk | They use FuseSoC for the code they have put up on github, but I've made some local improvements to their repo to separate the cores in a better way | 22:52 |
| olofk | Still haven't pushed anything though | 22:52 |
| olofk | andrzejr: I think the reason is that there was (is?) no support for openocd for the Xilinx protocol | 22:56 |
| --- Log closed Fri Jul 17 00:00:19 2015 | ||
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