void *of_claim(unsigned long virt, unsigned long size, unsigned long align)
{
int ret;
unsigned int result;
if (need_map < 0)
need_map = check_of_version();
if (align || !need_map)
return (void *) of_call_prom("claim", 3, 1, virt, size, align);
ret = of_call_prom_ret("call-method", 5, 2, &result, "claim", memory,
align, size, virt);
if (ret != 0 || result == -1)
return (void *) -1;
ret = of_call_prom_ret("call-method", 5, 2, &result, "claim", chosen_mmu,
align, size, virt);
/* */
ret = of_call_prom("call-method", 6, 1, "map", chosen_mmu,
0x12, size, virt, virt);
return (void *) virt;
}
void of1275_prominit(prom_entry entry)
{
promptr = entry;
chosen_handle = of1275_finddevice("/chosen");
if (chosen_handle == (phandle) (-1)) {
chosen_handle = of1275_finddevice("/chosen@0");
if (chosen_handle == (phandle) (-1))
of1275_exit();
}
if (of1275_getprop(chosen_handle, "stdout", &stdout, sizeof(stdout)) !=
4)
of1275_exit();
stderr = stdout;
if (of1275_getprop(chosen_handle, "stdin", &stdin, sizeof(stdin)) != 4)
of1275_exit();
if (!check_of_version())
return;
claim_needs_map = 1;
if (of1275_getprop(chosen_handle, "mmu", &mmu, sizeof(mmu)) != 4)
of1275_exit();
}
void *claim(unsigned int virt, unsigned int size, unsigned int align)
{
int ret;
unsigned int result;
if (need_map < 0)
need_map = check_of_version();
if (align || !need_map)
return (void *) call_prom("claim", 3, 1, virt, size, align);
ret = call_prom_ret("call-method", 5, 2, &result, "claim", memory,
align, size, virt);
if (ret != 0 || result == -1)
return (void *) -1;
ret = call_prom_ret("call-method", 5, 2, &result, "claim", chosen_mmu,
align, size, virt);
/* 0x12 == coherent + read/write */
ret = call_prom("call-method", 6, 1, "map", chosen_mmu,
0x12, size, virt, virt);
return virt;
}
