bdinit.c

来自「LEON3 SOC environment, PCI bridges.」· C语言 代码 · 共 31 行

#define L2MCTRLIO 0x80000000
#define L3TIMER   0x80000300

extern int _uart;
extern int _memcfg1, _memcfg2, _ftreg;
extern volatile unsigned int *_uaddr;
extern volatile unsigned int freq;

bdinit1()
{
volatile int *l2mctrl = (int *) L2MCTRLIO;
    l2mctrl[0] = _memcfg1;
    l2mctrl[1] = _memcfg2;
    l2mctrl[2] = _ftreg;
    _wsysreg(0, 0x1000f);
}

bdinit2()
{
    volatile int *l3timer = (int *) L3TIMER;

    l3timer[1] = freq -1;
    l3timer[5] = -1;
    l3timer[6] = 7;

    _uaddr[3] = _uart;
    _uaddr[2] = 3;
    _uaddr[1] = 0;
}