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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2006-08-22 21:45:12 -0400
committerPaul Mackerras <paulus@samba.org>2006-08-23 01:51:18 -0400
commit6cdd2bdfb9e2449f1c8a0f729cdf9cfd733dd63f (patch)
tree49b7507b83c82c26f2f0ab5bd1833460b3baac28 /arch/powerpc
parent5db9fa9593e2ff69f2b95f9d59229dc4faaa564d (diff)
[POWERPC] Fix BootX booting with an initrd
The bootx_init.c trampoline didn't properly add the ramdisk to the "reserve map" (list of reserved areas of memory), thus causing all sorts of failures when using BootX with an initrd. Also fixes a possible problem if the ramdisk is located before the device-tree passed by BootX. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/platforms/powermac/bootx_init.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/powerpc/platforms/powermac/bootx_init.c b/arch/powerpc/platforms/powermac/bootx_init.c
index 6a026c733f6a..9d73d0234c5d 100644
--- a/arch/powerpc/platforms/powermac/bootx_init.c
+++ b/arch/powerpc/platforms/powermac/bootx_init.c
@@ -411,8 +411,15 @@ static unsigned long __init bootx_flatten_dt(unsigned long start)
411 DBG("End of boot params: %x\n", mem_end); 411 DBG("End of boot params: %x\n", mem_end);
412 rsvmap[0] = mem_start; 412 rsvmap[0] = mem_start;
413 rsvmap[1] = mem_end; 413 rsvmap[1] = mem_end;
414 rsvmap[2] = 0; 414 if (bootx_info->ramDisk) {
415 rsvmap[3] = 0; 415 rsvmap[2] = ((unsigned long)bootx_info) + bootx_info->ramDisk;
416 rsvmap[3] = rsvmap[2] + bootx_info->ramDiskSize;
417 rsvmap[4] = 0;
418 rsvmap[5] = 0;
419 } else {
420 rsvmap[2] = 0;
421 rsvmap[3] = 0;
422 }
416 423
417 return (unsigned long)hdr; 424 return (unsigned long)hdr;
418} 425}
@@ -543,12 +550,12 @@ void __init bootx_init(unsigned long r3, unsigned long r4)
543 */ 550 */
544 if (bi->version < 5) { 551 if (bi->version < 5) {
545 space = bi->deviceTreeOffset + bi->deviceTreeSize; 552 space = bi->deviceTreeOffset + bi->deviceTreeSize;
546 if (bi->ramDisk) 553 if (bi->ramDisk >= space)
547 space = bi->ramDisk + bi->ramDiskSize; 554 space = bi->ramDisk + bi->ramDiskSize;
548 } else 555 } else
549 space = bi->totalParamsSize; 556 space = bi->totalParamsSize;
550 557
551 bootx_printf("Total space used by parameters & ramdisk: %x \n", space); 558 bootx_printf("Total space used by parameters & ramdisk: 0x%x \n", space);
552 559
553 /* New BootX will have flushed all TLBs and enters kernel with 560 /* New BootX will have flushed all TLBs and enters kernel with
554 * MMU switched OFF, so this should not be useful anymore. 561 * MMU switched OFF, so this should not be useful anymore.