123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263 |
- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * Bootwrapper for ePAPR compliant firmwares
- *
- * Copyright 2010 David Gibson <[email protected]>, IBM Corporation.
- *
- * Based on earlier bootwrappers by:
- * (c) Benjamin Herrenschmidt <[email protected]>, IBM Corp,\
- * and
- * Scott Wood <[email protected]>
- * Copyright (c) 2007 Freescale Semiconductor, Inc.
- */
- #include "ops.h"
- #include "stdio.h"
- #include "io.h"
- #include <libfdt.h>
- BSS_STACK(4096);
- #define EPAPR_SMAGIC 0x65504150
- #define EPAPR_EMAGIC 0x45504150
- static unsigned epapr_magic;
- static unsigned long ima_size;
- static unsigned long fdt_addr;
- static void platform_fixups(void)
- {
- if ((epapr_magic != EPAPR_EMAGIC)
- && (epapr_magic != EPAPR_SMAGIC))
- fatal("r6 contained 0x%08x instead of ePAPR magic number\n",
- epapr_magic);
- if (ima_size < (unsigned long)_end)
- printf("WARNING: Image loaded outside IMA!"
- " (_end=%p, ima_size=0x%lx)\n", _end, ima_size);
- if (ima_size < fdt_addr)
- printf("WARNING: Device tree address is outside IMA!"
- "(fdt_addr=0x%lx, ima_size=0x%lx)\n", fdt_addr,
- ima_size);
- if (ima_size < fdt_addr + fdt_totalsize((void *)fdt_addr))
- printf("WARNING: Device tree extends outside IMA!"
- " (fdt_addr=0x%lx, size=0x%x, ima_size=0x%lx\n",
- fdt_addr, fdt_totalsize((void *)fdt_addr), ima_size);
- }
- void epapr_platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
- {
- epapr_magic = r6;
- ima_size = r7;
- fdt_addr = r3;
- /* FIXME: we should process reserve entries */
- simple_alloc_init(_end, ima_size - (unsigned long)_end, 32, 64);
- fdt_init((void *)fdt_addr);
- serial_console_init();
- platform_ops.fixups = platform_fixups;
- }
|