acrn-kernel/arch/mips/qemu/q-firmware.c

19 lines
435 B
C

#include <linux/init.h>
#include <linux/string.h>
#include <asm/addrspace.h>
#include <asm/bootinfo.h>
void __init prom_init(void)
{
int *cmdline;
cmdline = (int *) (CKSEG0 + (0x10 << 20) - 260);
if (*cmdline == 0x12345678) {
if (*(char *)(cmdline + 1))
strcpy(arcs_cmdline, (char *)(cmdline + 1));
add_memory_region(0x0<<20, cmdline[-1], BOOT_MEM_RAM);
} else {
add_memory_region(0x0<<20, 0x10<<20, BOOT_MEM_RAM);
}
}