[OpenRISC] Running timer.c program on or1ksim

[OpenRISC] Running timer.c program on or1ksim

[Prasanna Karthik]

Hi,
    We want to run the attached code on the or1ksim OpenRisc simulator. The
code uses the following function to enable timers.

*Code*
static inline void timer_enable()
{
        or1k_mtspr(SPR_TTMR, SPR_TTMR_CR);
}

*Compilation*
We compiled the code(on a ubuntu machine) using the following command:
or1k-linux-musl-gcc -O -Iarch/openrisc/include
-I../baremetal-compiler/or1k-elf/or1k-elf/  main.c -o
arch/openrisc/support/initramfs/main.elf

*Execution*
We then run the elf file (on the openrisc simulator) using the following
command:
./main.elf

*Output*
WARNING: trying to write SPR while SR[SUPV] is cleared.


*Debug attempts*
We have set the following value for the SR register
 sr =  0x18001
We see that the SUPV bit is set.

Can someone help us understand what is going wrong?



-- 
Prasanna Karthik V
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