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ti814x bios project can not configure PRCM module

david shen
Prodigy 135 points
Other Parts Discussed in Thread: TMS320DM8148, SYSBIOS

Hi,

My platform was TI8148, and I create an BIOS project for cortex-A8, and try to power on DSP from cortex-A8, but it's failure as I can not confgure PRCM module from my BIOS project. u-boot or GEL file can done this success, I don't know why, who can help me.

Attach was my test project which set pll in an BIOS project. It would hang up at file main.c line 131. I also make another test that I make XDC Startup modules firstFxns call ipnc_ff_pll_init, it's pass, but  if I set ipnc_ff_pll_init to lastFxns of Startup, it's also not work.1055.test_bios_pll.zip

  • 0
    TI__Guru**** 170625 points

    David,

    david shen said:
    I create an BIOS project for cortex-A8

    Could you please provide more info regarding this BIOS project? Is this the TI-RTOS (formerly known as SYS/BIOS)?

    http://www.ti.com/product/TMS320DM8148/toolssoftware

    http://www.ti.com/tool/sysbios

    http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/bios/sysbios/6_40_01_15/index_FDS.html

    Best regards,
    Pavel

  • 0
    TI__Guru**** 170625 points

    David,

    david shen said:
    Attach was my test project which set pll in an BIOS project. It would hang up at file main.c line 131.

    From what I understand, you are accessing the DSP_PLL registers (start addr at 0x481C5080) from the Cortex-A8 ARM code, is that correct?

    Are you aligned with the u-boot PLL config?

    u-boot-2010.06-psp04.04.00.01/board/ti/ti8148/evm.c

    static void pll_config(u32 base, u32 n, u32 m, u32 m2, u32 clkctrl_val)

    BR
    Pavel

  • 0 in reply to Pavel Botev
    Prodigy 135 points

    Hi Pavel,

      I have fixed the problem, it's caused by BIOS system MMU function. Thx!