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| author | Jeremy Kerr <jeremy.kerr@canonical.com> | 2010-01-30 09:31:21 +0100 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2010-02-09 16:34:10 +0100 |
| commit | 1406bc2f57787797d1f6a3675c019a7093769275 (patch) | |
| tree | 2b3bee50a75fa1502ef00eccf7bcecda19acd56a /arch/microblaze | |
| parent | proc_devtree: include linux/of.h (diff) | |
| download | linux-1406bc2f57787797d1f6a3675c019a7093769275.tar.xz linux-1406bc2f57787797d1f6a3675c019a7093769275.zip | |
of/flattree: use callback to setup initrd from /chosen
At present, the fdt code sets the kernel-wide initrd_start and
initrd_end variables when parsing /chosen. On ARM, we only set these
once the bootmem has been reserved.
This change adds an arch hook to setup the initrd from the device
tree:
void early_init_dt_setup_initrd_arch(unsigned long start,
unsigned long end);
The arch-specific code can then setup the initrd however it likes.
Compiled on powerpc, with CONFIG_BLK_DEV_INITRD=y and =n.
Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'arch/microblaze')
| -rw-r--r-- | arch/microblaze/kernel/prom.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c index 459c32e4a5fe..050b7993c51c 100644 --- a/arch/microblaze/kernel/prom.c +++ b/arch/microblaze/kernel/prom.c @@ -118,6 +118,16 @@ void __init early_init_devtree(void *params) pr_debug(" <- early_init_devtree()\n"); } +#ifdef CONFIG_BLK_DEV_INITRD +void __init early_init_dt_setup_initrd_arch(unsigned long start, + unsigned long end) +{ + initrd_start = (unsigned long)__va(start); + initrd_end = (unsigned long)__va(end); + initrd_below_start_ok = 1; +} +#endif + /******* * * New implementation of the OF "find" APIs, return a refcounted |