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https://opencores.org/ocsvn/or1k_soc_on_altera_embedded_dev_kit/or1k_soc_on_altera_embedded_dev_kit/trunk
Subversion Repositories or1k_soc_on_altera_embedded_dev_kit
[/] [or1k_soc_on_altera_embedded_dev_kit/] [trunk/] [linux-2.6/] [linux-2.6.24/] [arch/] [mips/] [qemu/] [q-firmware.c] - Rev 3
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#include <linux/init.h> #include <linux/string.h> #include <asm/addrspace.h> #include <asm/bootinfo.h> #include <asm/io.h> #define QEMU_PORT_BASE 0xb4000000 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); } set_io_port_base(QEMU_PORT_BASE); }