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Altera_Forum's avatar
Altera_Forum
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19 years ago

need help on booting from cfi flash

hi hippo,

I am developing linux applications on CYCLONE_1C12_EVAL Board, following your instructions on website NiosWIKI.

I want to boot from CTI flash. But the linux didn't work but after programming. There is one point I am not clear. Please refer to the following scripts on NIOSWIKI, how do you get the address "0xC0000" in " sof2flash --offset=0xC00000 --".

-------------------------------------------------------------------------------------------

cd arch/nios2nommu/boot# Creating .flash file for the FPGA configuration

sof2flash --offset=0xC00000 --input=$SOPC_KIT_NIOS2/examples/verilog/niosII_cycloneII_2c35/standard/standard.sof --output=standard.flash# Programming flash with the FPGA configuration

nios2-flash-programmer --base=0x00000000 standard.flash

-----------------------------------------------------------------------------------------------

And Please help me to check whether the following selects are right or not.

(I) SOPC. I choose: reset from ext_flash

(II) The addresses in my nios2-system.h are chosen like these:

ext_flash: 0x0--0x800000

epcs: 0x800800---0x801000

(III) When "make vendor_hwselect SYSPTF=....", the items chosen are chosen ike the following:

--- Please select which CPU you wish to build the kernel against:

(1) cpu - Class: altera_nios2 Type: s Version: 5.11

Selection: 1

--- Please select a device to upload the kernel to:

(1) ext_flash

Class: altera_avalon_cfi_flash

Selection: 1

--- Please select a device to execute kernel from:

(1) ext_ssram

Class: altera_avalon_cy7c1380_ssram

(2) epcs_controller

Class: altera_avalon_epcs_flash_controller

Size: 2048 bytes

Selection: 1

I will appreciate much if you could spare a minute to reply.

Thank you,

Elec

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    19 years ago

    hi hippo,

    I found the problem myself. I should use EPCS to configure the FPGA.

    ================================================

    --- Quote Start ---

    originally posted by electroman74@Mar 7 2007, 10:57 AM

    hi hippo,

    i am developing linux applications on cyclone_1c12_eval board, following your instructions on website nioswiki.

    i want to boot from cti flash. but the linux didn't work but after programming. there is one point i am not clear. please refer to the following scripts on nioswiki, how do you get the address "0xc0000" in " sof2flash --offset=0xc00000 --".

    -------------------------------------------------------------------------------------------

    cd arch/nios2nommu/boot# creating .flash file for the fpga configuration

    sof2flash --offset=0xc00000 -- input=$sopc_kit_nios2/examples/verilog/niosii_cycloneii_2c35/standard/stand

    ard.sof --output=standard.flash

    # sof2flash --epcs ......#

    # programming flash with the fpga configuration

    nios2-flash-programmer --base=0x00000000 standard.flash

    #should use epcs: nios2-flash-programmer --epcs --base=0x800800 standard.flash

    -----------------------------------------------------------------------------------------------

    and please help me to check whether the following selects are right or not.

    (i) sopc. i choose: reset from ext_flash

    (ii) the addresses in my nios2-system.h are chosen like these:

    ext_flash: 0x0--0x800000

    epcs: 0x800800---0x801000

    (iii) when "make vendor_hwselect sysptf=....", the items chosen are chosen ike the following:

    --- please select which cpu you wish to build the kernel against:

    (1) cpu - class: altera_nios2 type: s version: 5.11

    selection: 1

    --- please select a device to upload the kernel to:

    (1) ext_flash

    class: altera_avalon_cfi_flash

    selection: 1

    --- please select a device to execute kernel from:

    (1) ext_ssram

    class: altera_avalon_cy7c1380_ssram

    (2) epcs_controller

    class: altera_avalon_epcs_flash_controller

    size: 2048 bytes

    selection: 1

    i will appreciate much if you could spare a minute to reply.

    thank you,

    elec

    <div align='right'><{post_snapback}> (index.php?act=findpost&pid=22044)

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