diff options
author | David Woodhouse <dwmw2@infradead.org> | 2005-11-02 23:34:20 +0100 |
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committer | Paul Mackerras <paulus@samba.org> | 2005-11-08 01:16:41 +0100 |
commit | a82765b6eee3d1267ded3320ca67b39fe1844599 (patch) | |
tree | 2b9273f931724303d1c1c968684bed0146e2da61 /arch/powerpc/kernel/setup-common.c | |
parent | Merge ../linux-2.6 (diff) | |
download | linux-a82765b6eee3d1267ded3320ca67b39fe1844599.tar.xz linux-a82765b6eee3d1267ded3320ca67b39fe1844599.zip |
[PATCH] powerpc: Fix ppc32 initrd
OK, the Fedora ppc32 and ppc64 kernels should both be arch/powerpc by
tomorrow. They're booting on G5, POWER5, and my powerbook. I'll test
pmac SMP and Pegasos later -- but pmac smp is known broken in arch/ppc
anyway, and I'll live with a potential Pegasos regression for now; it
wasn't supported officially in FC4 either.
I needed to fix ppc32 initrd -- we were never setting initrd_start.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/setup-common.c')
-rw-r--r-- | arch/powerpc/kernel/setup-common.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index d43fa8c0e5ac..e22856ecb5a0 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -405,6 +405,46 @@ static int __init set_preferred_console(void) console_initcall(set_preferred_console); #endif /* CONFIG_PPC_MULTIPLATFORM */ +void __init check_for_initrd(void) +{ +#ifdef CONFIG_BLK_DEV_INITRD + unsigned long *prop; + + DBG(" -> check_for_initrd()\n"); + + if (of_chosen) { + prop = (unsigned long *)get_property(of_chosen, + "linux,initrd-start", NULL); + if (prop != NULL) { + initrd_start = (unsigned long)__va(*prop); + prop = (unsigned long *)get_property(of_chosen, + "linux,initrd-end", NULL); + if (prop != NULL) { + initrd_end = (unsigned long)__va(*prop); + initrd_below_start_ok = 1; + } else + initrd_start = 0; + } + } + + /* If we were passed an initrd, set the ROOT_DEV properly if the values + * look sensible. If not, clear initrd reference. + */ + if (initrd_start >= KERNELBASE && initrd_end >= KERNELBASE && + initrd_end > initrd_start) + ROOT_DEV = Root_RAM0; + else { + printk("Bogus initrd %08lx %08lx\n", initrd_start, initrd_end); + initrd_start = initrd_end = 0; + } + + if (initrd_start) + printk("Found initrd at 0x%lx:0x%lx\n", initrd_start, initrd_end); + + DBG(" <- check_for_initrd()\n"); +#endif /* CONFIG_BLK_DEV_INITRD */ +} + #ifdef CONFIG_SMP /** |