int omap4430_enable_emu()
{
int ret = -1;
void *base_cm_emu, *base_l3instr_l3;
int timeout = GLOBAL_TIMEOUT;
base_cm_emu = map_page(OMAP4430_CM_EMU);
if (base_cm_emu == NULL)
goto end;
base_l3instr_l3 = map_page(OMAP4430_CM_L3INSTR_L3);
if (base_l3instr_l3 == NULL)
goto unmap_cm_emu;
// Enable clocks
__writel(0x2, base_cm_emu + 0xA00);
__writel(0x1, base_l3instr_l3 + 0xE20);
__writel(0x1, base_l3instr_l3 + 0xE28);
// Check if it worked
while (--timeout)
if (((__readl(base_cm_emu + 0xA00) & 0xf00) == 0x300)
&& (__readl(base_cm_emu + 0xA20) & 0x40000)) {
ret = 0;
break;
}
unmap_page(base_l3instr_l3);
unmap_cm_emu:
unmap_page(base_cm_emu);
end:
return ret;
}
unsigned long _readl(unsigned long addr)
{
return __readl(addr);
}
