diff options
Diffstat (limited to 'arch/powerpc/boot/main.c')
| -rw-r--r-- | arch/powerpc/boot/main.c | 46 |
1 files changed, 22 insertions, 24 deletions
diff --git a/arch/powerpc/boot/main.c b/arch/powerpc/boot/main.c index 64ec93116fa..55ec5986725 100644 --- a/arch/powerpc/boot/main.c +++ b/arch/powerpc/boot/main.c @@ -21,8 +21,8 @@ extern void flush_cache(void *, unsigned long); /* Value picked to match that used by yaboot */ -#define PROG_START 0x01400000 -#define RAM_END (512<<20) // Fixme: use OF */ +#define PROG_START 0x01400000 /* only used on 64-bit systems */ +#define RAM_END (512<<20) /* Fixme: use OF */ #define ONE_MB 0x100000 extern char _start[]; @@ -160,6 +160,17 @@ static int is_elf64(void *hdr) elfoffset = (unsigned long)elf64ph->p_offset; vmlinux.size = (unsigned long)elf64ph->p_filesz + elfoffset; vmlinux.memsize = (unsigned long)elf64ph->p_memsz + elfoffset; + +#if defined(PROG_START) + /* + * Maintain a "magic" minimum address. This keeps some older + * firmware platforms running. + */ + + if (claim_base < PROG_START) + claim_base = PROG_START; +#endif + return 1; } @@ -206,12 +217,18 @@ void start(unsigned long a1, unsigned long a2, void *promptr, void *sp) exit(); if (getprop(chosen_handle, "stdout", &stdout, sizeof(stdout)) != 4) exit(); - stderr = stdout; - if (getprop(chosen_handle, "stdin", &stdin, sizeof(stdin)) != 4) - exit(); printf("\n\rzImage starting: loaded at 0x%p (sp: 0x%p)\n\r", _start, sp); + /* + * The first available claim_base must be above the end of the + * the loaded kernel wrapper file (_start to _end includes the + * initrd image if it is present) and rounded up to a nice + * 1 MB boundary for good measure. + */ + + claim_base = _ALIGN_UP((unsigned long)_end, ONE_MB); + vmlinuz.addr = (unsigned long)_vmlinux_start; vmlinuz.size = (unsigned long)(_vmlinux_end - _vmlinux_start); @@ -228,25 +245,6 @@ void start(unsigned long a1, unsigned long a2, void *promptr, void *sp) exit(); } - /* - * The first available claim_base must be above the end of the - * the loaded kernel wrapper file (_start to _end includes the - * initrd image if it is present) and rounded up to a nice - * 1 MB boundary for good measure. - */ - - claim_base = _ALIGN_UP((unsigned long)_end, ONE_MB); - -#if defined(PROG_START) - /* - * Maintain a "magic" minimum address. This keeps some older - * firmware platforms running. - */ - - if (claim_base < PROG_START) - claim_base = PROG_START; -#endif - /* We need to claim the memsize plus the file offset since gzip * will expand the header (file offset), then the kernel, then * possible rubbish we don't care about. But the kernel bss must |