[ts-7000] reading maverikkey from userspace

[Anish Patel <>]

 hi all,
    i am trying to figure out how to read the maverikkey from userspace,
without having to grab it from /proc/cpuinfo.
after a lot of googling i finally found a reference that told me what
register to access to get the information, but i am failing at
understanding at how to access the register.  I know its a 32bits long,
i tried using inl(0x80832440) which just causes seg faults, then i tried
this

#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>

using namespace std;

int main(void){
    int fd;
    fd = open("/dev/mem", O_RDWR | O_CREAT | O_TRUNC);

//    cout << "test " << endl;
    //cout << hex << EP93XX_AHB_PHYS_BASE << endl;
    //unsigned int *serial = (unsigned int *)0x80832440;
    unsigned int* serial = (unsigned int*)mmap (0, 32, PROT_READ,
fd,0x80832440,0);
    cout << hex << serial << endl;   

    //printf("%x\n", serial);
    return 0;
}

which just returns 0xfffffff

I tried to follow what was happening in the kernel source and kind of
understand, but not understand the
#define IOMEM(p) macro expansion, i also tried coping the io.h and
ep93xx-regs.h to my local directory and trying to get it to work that way.
can someone please give me a hint or nudge in the right direction?

Thanks
Anish




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