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* David Cemin http://coveloz.com <http://coveloz.com/>
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