An update: I now am able to configure the fpga from an ext partition from uboot. There are some specific things that apparently have to be called for ext partitions and I was not doing that.
Thanks for the support David On Mon, Apr 4, 2016 at 8:52 PM, David Cemin <[email protected]> wrote: > I did define CONFIG_CMD_EXT4, which automatically defines the > CONFIG_FS_EXT4. I can send you a diff of my cff.c file if you would have > the time to review what I could possibly be doing wrong in this case. > > Thanks > > David > > On Mon, Apr 4, 2016 at 8:36 PM, Dalon Westergreen <[email protected]> > wrote: > >> i haven't tried it. I dont believe it is enabled by default, i take it >> you #define CONFIG_FS_EXT4 ? >> >> On Mon, Apr 4, 2016 at 5:32 PM, David Cemin <[email protected]> >> wrote: >> >>> Hi Dalon, >>> >>> That is exactly what I did. I created a cff_from_mmc_ext function at >>> this very same file you mentioned. But then I ran into the problem where >>> the ext4_fileread just returns with the following error: >>> ext4fs_devread read outside partition 4776 >>> >>> How is the support for ext4 on the arria10 branch? ( >>> >>> - socfpga_v2014.10_arria10_bringup >>> >>> <https://github.com/altera-opensource/u-boot-socfpga/compare/socfpga_v2014.10_arria10_bringup> >>> ) >>> - >>> >>> >>> Thanks ! >>> >>> David >>> >>> >>> On Mon, Apr 4, 2016 at 8:21 PM, Dalon Westergreen <[email protected]> >>> wrote: >>> >>>> its entirely plausible, but not supported. Programming from fat is >>>> done during boot using file_fat_read_at which reads bits of the fpga image >>>> to ram and programs them to flash. the function that implements fpga >>>> config from flash also does not use the fpga load command which requires >>>> the entire fpga image be present in memory. the fpga load calls and init >>>> for the fpga for each call, essentially restarting configuration. >>>> >>>> to do what you ask you would need to implement something like >>>> the cff_from_mmc_fat function >>>> in u-boot-socfpga/arch/arm/cpu/armv7/socfpga_arria10/cff.c >>>> >>>> Thanks, >>>> Dalon >>>> >>>> On Mon, Apr 4, 2016 at 5:02 PM, David Cemin <[email protected]> >>>> wrote: >>>> >>>>> Hi, >>>>> >>>>> On an arria10 SoC development kit, i would like to be able to >>>>> configure the fpga from an EXT partition instead of doing it from the FAT >>>>> partition. >>>>> >>>>> So, i removed the call on the sdram.c that configures the fpga during >>>>> boot (function dram_init calls cff_from_mmc_fat) and tried to do: >>>>> >>>>> - ext4load mmc 0:X $rbftosdramaddr <path to my rbf on ext3 >>>>> partition) >>>>> >>>>> This doesnt work because at this point the ddr_calibration_sequence >>>>> didnt run yet so I cant actually use the external memory to put my image >>>>> on. >>>>> >>>>> I tried manually calling the fpga loadfs and configure the fpga from >>>>> the FAT partition, and then have the memory ready. So, I load the my fpga >>>>> image into memory: >>>>> >>>>> ext4load mmc 0:2 0x400 /firmware/fpga_img.rbf >>>>> >>>>> Then I tried using the fpga load command to program it again: >>>>> fpga load 0 0x400 $filesize >>>>> >>>>> It gets stalled. >>>>> >>>>> >>>>> Not happy with it, because I thought it could be something weird on >>>>> the load program, i repeated the same thing the cff_from_mmc_fat does, but >>>>> using ext4_read instead of file_fat_read_at .. and it barfs giving me this >>>>> message: >>>>> ext4fs_devread read outside partition 4776 >>>>> >>>>> >>>>> So, I thought I should separate that in smaller chunks, because this >>>>> was a problem on the ext4 read, and I get that it reads up to 3840 bytes, >>>>> and then it returns an error: >>>>> otal_read = 3584 Total: 31619884 fname /firmware/fpga_img.rbf temp >>>>> 00003840 bufptr 0 cs 64 >>>>> bytesread: 64 >>>>> total_read = 3648 Total: 31619884 fname /firmware/fpga_img.rbf temp >>>>> 00003940 bufptr 0 cs 64 >>>>> bytesread: 64 >>>>> total_read = 3712 Total: 31619884 fname /firmware/fpga_img.rbf temp >>>>> 00003a40 bufptr 0 cs 64 >>>>> bytesread: 64 >>>>> total_read = 3776 Total: 31619884 fname /firmware/fpga_img.rbf temp >>>>> 00003b40 bufptr 0 cs 64 >>>>> bytesread: 64 >>>>> total_read = 3840 Total: 31619884 fname /firmware/fpga_img.rbf temp >>>>> 00003c40 bufptr 0 cs 64 >>>>> ** File not found /firmware/fpga_img.rbf ** >>>>> read_rbf_header_from_ext: failed to read /firmware/fpga_img.rbf -1 != >>>>> 64 >>>>> cff_from_mmc_ext: error reading rbf header >>>>> >>>>> >>>>> *So, my question finally is*: >>>>> Does anybody know if it is possible to configure the fpga on arria10 >>>>> dev kit from an ext3 partition instead of from a FAT partition ? >>>>> >>>>> Thank you >>>>> >>>>> Best regards, >>>>> >>>>> David >>>>> >>>>> -- >>>>> >>>>> *+1 (343) 777-1735 <%2B1%20%28343%29%20777-1735>* David Cemin >>>>> http://coveloz.com >>>>> >>>>> >>>>> <http://coveloz.com/> >>>>> >>>>> _______________________________________________ >>>>> Rfi mailing list >>>>> [email protected] >>>>> http://lists.rocketboards.org/cgi-bin/mailman/listinfo/rfi >>>>> >>>>> >>>> >>> >>> >>> -- >>> >>> *+1 (343) 777-1735 <%2B1%20%28343%29%20777-1735>* David Cemin >>> http://coveloz.com >>> >>> >>> <http://coveloz.com/> >>> >> >> > > > -- > > *+1 (343) 777-1735 <%2B1%20%28343%29%20777-1735>* David Cemin > http://coveloz.com > > > <http://coveloz.com/> > -- *+1 (343) 777-1735* David Cemin http://coveloz.com <http://coveloz.com/>
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